MUNICIPAL COUNCIL CHIINAU. MYORALTYCONSILIUL MUNICIPAL CHIINU. PRIMRIA

MUNICIPAL DESIGN INSTITUTE"CHISINAUPROIECT"INSTITUTUL MUNICIPAL DE PROIECTRI"CHIINUPROIECT"

CLIENT: " GENERAL DEPARTAMENT OF PUBLIC TRANSPORT AND MAIN ROADS"BENEFICIAR: "DIRECIA GENERAL TRANSPORT PUBLIC I CI DE

COMUNICAIE"

DETAILED DESIGNPROIECT DE EXECUIE

OBIECTIV: Rehabilitation of Alexandru cel Bun street, Chisinau Sity/Reabilitarea strazii Alexandru cel Bun,or. Chisinau

PROJECT No.: 3070NR.OBIECTIVULUI: 3070

VOLUME IVOLUMUL I

COMPARTIMENT: TEHNICAL REPORT / MEMORIU TEHNIC

CHIINU 2014

MUNICIPAL COUNCIL CHIINAU. MYORALTYCONSILIUL MUNICIPAL CHIINU. PRIMRIA

MUNICIPAL DESIGN INSTITUTE"CHISINAUPROIECT"INSTITUTUL MUNICIPAL DE PROIECTRI"CHIINUPROIECT"

CLIENT: " GENERAL DEPARTAMENT OF PUBLIC TRANSPORT AND MAIN ROADS"BENEFICIAR: "DIRECIA GENERAL TRANSPORT PUBLIC I CI DE

COMUNICAIE"

DETAILED DESIGNPROIECT DE EXECUIE

OBIECTIV: Rehabilitation of Alexandru cel Bun street, Chisinau Sity/Reabilitarea strazii Alexandru cel Bun ,or. Chisinau

PROJECT No.: 3070NR.OBIECTIVULUI: 3070

VOLUME IVOLUMUL I

COMPARTIMENT: TEHNICAL REPORT / MEMORIU TEHNIC

Managing Director of Design InstituteDirectorul institutului Pavel Cazacu

Chief Engineer of Design InstituteInginer ef al Institutului Ion Paciu

Chief Design EngineerInginer ef proiect Maria Redco

CHIINU 2014

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PROJECT COMPONENTSCOMPONENTA PROIECTULUI

Funded project documentation of BERD/Documentatie de proiect finantate de BERD

3070 - MT Tehnical report/Memoriu Tehnic

3070 - D Road/Compartimentul drum

3070 - CPL Reconstruction of Surface Drainage/

Reconstructia canalizarea pluviala

3070 - RIE Reconstruction of Street Lighting/Reconstructia retelei de iluminare exterioare

3070 - CC Costs and quantities/Costuri si cantitti

3070 - ST Tehnical specification/Specificatii tehnice

3070 - PMS Enviromental and social action/Actiuni sociale si

mediu

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Contents/Cuprinsul:Volume IVolumul I

Data about the compliance of the Design with applicable standards

Date despre conformitatea proiectului cu documentele normative n vigoare...............................3

Responsible staff for development of the Design:Componenta responsabililor de elaborarea proiectului:................................................................3

1. General Data (Road) / Date generale (drum)........................................................4-7/12-15

2. . Technical Solutions (Road) / Solutii tehnice (drum)..........................................7-11/15-19

3. Rain Water Sewage/ Canalizatie pentru apele pluviale....................................20-21/22-23

4. Reconstruction of Lighting/Reconstructia Iluminatului Exterior.........................24-25/25/26

5. Schedule with Timeframe for Performance of Works /Grafic calendaristic pentruindeplinirea lucrrilor........................................................................................26-28/29-31

6. Urban Planning Certificate /Certificatul de Urbanism..................................................32-34

7. TOR / Tema de proiectare...........................................................................................35-36

8. Reports, letters, Technical Conditions for Design Utilities / Procese verbale, scrisori,Conditiile Tehnice pentru proiectarea retelelor ingineresti..........................................37-47

Attachment 1- Spreadsheet for PavementAnexa 1- Borderou imbracaminte rutiera.................................................................(8 sheet/ 8 foi)

Attachment 2 Traffic volumeAnexa 2 - Intensitatea auto......................................................................................(1 sheet/ 1 foi)

Attachment 3 Calculations for Pavement Option IAnexa 3 - Calcul structura rutiera Varianta I............................................................(7 sheet/ 7 foi)

Attachment 4 - Calculations for Pavement Option IIAnexa 4 - Calcul structura rutiera Varianta II...........................................................(9 sheet/9 foi)

Attachment 5 Schedule with Determination Phases for RoadAnexa 5 - Program faze determinate Drum.............................................................(6 sheet/ 6 foi)

Attachment 6 - Schedule with Determination Phases for CPL (Sewage for Rain Waters)Anexa 6 - Program faze determinate CPL...............................................................(2 sheet/ 2 foi)

Attachment 7 Plan of Catchment Area;Table with Calculations for the Catchment AreaAnexa 7 - Schema bazinului hidrografic;Tabelul de calcule a bazinului hidrografic.................................................................(1 sheet/ 1 foi)

Attachment 8 - Schedule with Determination Phases for RIE (Street Lighting)Anexa 8 - Program privind controlul execuiei pe faze determinante Ilum. ext.......(2 sheet/ 2 foi)

Attachment 9 - Quality control schedulerie (Street Lighting)Anexa 9 - Program privind controlul calitii...........................................................(2 sheet/ 2 foi)

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Data related to compliance of the Design with the applicable standard docs./Datedespre conformitatea proiectului cu documentele normative n vigoare

The Design was developed in compliance with the applicable standard docs andnorms./Proiectul a fost elaborat n conformitate cu standardele si normele n vigoare

CDE /ISP M. Redco

List of responsible developers of the Design:/

Componenta responsabililor de elaborarea proiectului:

1. .Redco CDE /ISP

2. Iu. Sitnicov CDE ( Lighting ) /ISP (iluminat exterior)

3. V. Ungureanu Engineer of Category I(Road design )/Inginer de calificare I (drum)

4. A. Sitnicova Inginer de calificare I (iluminat exterior)Engineer of Category I(Lighting )

5. A. Doncila Inginer coordonotor (iluminat exterior)Engineer (Lighting)

6. I. Gorbaceova Seful sectiei devizeHead of Estimate Department

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GENERAL EXPLANATORY MEMO

1. GENERAL DATA:

Investment for: Rehabilitation of Alexandru cel Bun Street, Chisinau town,L=2184.36 m, phase: DD

1.2 Developer: MUNICIPAL DESIGN INSTITUTE "CHISINAUPROIECT"

1.3 CLIENT: "GENERAL DEPARTMENT OF PUBLIC TRANSPORT AND ROADS".

1.4 Location: Chisinau, Central area

1.5 TORThe TOR for this project was set by the Client and includes:Rehabilitation of Alexandru cel Bun Street in Chisinau town:

The requirements stipulated in the TOR for technical solutions are:-design of road pavement for the design traffic for a 12-years perspective(2014-2026);

-freeze-thaw resistance test for road pavement;-remake of pedestrian walkways within the street;-drainage facilities for storm waters (Construction of Sewage for Rain Waters-

210m);-remake of cross falls on the carriageway (20);-compliance of all geometrical characteristics of the alignment with the technical

characteristics specific for a street.The proposed works are necessary due to poor condition of the pavement and

due to low bearing capacity of the road.The technical documents were prepared based on:- standard GOST documents;- topographical plans;- Clients requirements;- Technical Expertise;

Technical considerations on the need of pavement rehabilitation are highlighted bythe technical expertise for the only pattern of pavement structure (technical expertisefor Alexandru cel Bun Street was performed by UNIVERSINJS.R.L.).

1.6 Description of Existing Condition1.6.1. Technical and Functional Characteristics of the Street

The Alexandru cel Bun Street is a part of the main network of streets of Chisinautown and technically is characterized as follows:

One way secondary Street (2 lanes);

Structurally, the pavement of Alexandru cel Bun Street is of one and the samepattern.

Relief of the area: the relief of the street alignment is flat.

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1.6.2. Technical Characteristics of the Sector1.6.2.1. Geometry Total length of street: 2184,36m (Pc 0+0.00 Pc 21+84.36): Width of carriageway: 6.5m; 9.0 m; Width of walkways: -2.0m-7.10m; ROW (Construction Line): - 24.00m;

Total area: 42350 m2o carriageway: 16 300 m2:o pedestrian walkways: 19 135 m2, of which:

walkways of vibrated concrete tile blocks (recently performed): 5370 m2 asphalt paved walkways: 13765 m2

o green areas: 5040 m2.o other areas: 1875 m2.o the kerbs are partially damaged, having: spalls, exfoliations, surfacedamages, partial geometrical deviations.

1.6.2.2. Longitudinal Profile: with slope and ramp variations between: 1 and 33.

1.6.2.3. Transverse profile: including the carriageway, walkways and locally greenareas. The cross falls vary between 5 and 30 for carriageway, between 5and 30 for walkways, 15 for green areas. Green areas are locally provided.

1.6.2.4. Alignments and Curves: the route has one alignment of 2184.36m length.

1.6.2.5. Areas with specific pavement structure: Existing road pavement: - asphalt pavement;

(average thickness of 16cm)-subbase of crushed stone;(average thickness of 21cm)-capping layer of sand;(average thickness of 14cm)- subgrade(sandy clay: light-weighted)

Existing Walkways: -pavement of vibrated concrete tile blocks: 4-6cm;

-stabilized sand layer of 2...3cm;-subbases of crushed stone-asphalt pavement.

These walkways shall be removed and reconstructedagain.

The catchment system of rain waters includes a network of slots connected to theSewage of the Rain Waters of the town (see the Explanatory Memo for CPLcompartment); Green areas: located on both sides of the street

1.6.2.6. Catchment and Disposal System for Runoffs from the StreetIn several areas, there are no sufficient slots and existing Sewage networks to

catch and dispose all the rain waters.

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1.6.3. Assessment of Technical ConditionAssessment of technical condition was performed based on technical expertise,

visual assessments and topographical plans.The assessment of technical condition of the pavement, based on technicalexpertise performed by SRL Universinj, shows the following:

- the bituminous pavement of this street is deteriorated, being rated as POORcondition, in some areas - as MODERATE condition;-surface roughness, rated as moderate;-bearing capacity of pavement determined by static method (using a deflectometer KP204) is considered to be low;-traffic for future period of 2014-2024 years: No. of standard axles:115KN,average daily traffic flow (see Attachment 1).

The traffic is heterogeneous and mainly includes vehicles for private and jointtransportation, trolleybuses, and small trucks.

Findings on Technical Condition of Pavement before the Performance ofRehabilitation Works to the Pavement and Pedestrian Structures

The pavement damages, determined through technical expertise, include structuraldamages and surface damages.

Structural Damages: Fatigue distress; Crocodile cracks Longitudinal cracks; Patches; Rutting; ShovellingPotholes affecting the structure.

Surface Damages: Transverse cracks; Potholes affecting the surface layer.

In relation with this, it was found, that the pavement oh the street is totallydamages, that leading to the conclusion about the need to remake the whole structureon the whole street.

1.6.4. The Area and Legal Status of the Land under the Investment ProjectTotal length of sector: 2184.36m, total area of sector: 42350 m2.The land, on which is located the project, is the public property of Chisinau MunicipalLocal Council .

1.6.5. Technical Characteristics of the Landa) Geophysical Characteristics of the Land

The alignment to be upgraded is located in a flat area, belonging to Sarmatianperiod, consisting of clay soils, sand with a low degree of consolidation. By moisturecharacteristics, the sector is of Climatic Type I.

b) Seismic and geo-climatic characteristics of the area are as follows:

Seismic Characteristics Seismic area of 6-8 degrees

Climatic Characteristics The area is in the climatic zone III with t=18oC; Climatic Type I, hydrological regime: 2b;

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Freezing depth=-0,70m as per ODN 218.046.01;

2. TECHNICAL SOLUTIONS:

2.1. General:Considering the data of technical expertise for the existing pavement, performedby Universinj, two design options of pavement rehabilitation were taken intoaccountOption 1: (see the calculations of Attachment 2)-removal of asphalt at 16 cm depth;-laying of base course performed of Cold Recycled Asphalt with addition of 400crushed stone - 10%, 3% of emulsion and 2% of cement - 18cm;-binding layer of asphalt concrete MA- 6cm;-wearing course of asphalt concrete - 4cm;Option 2: (see the calculations of Attachment 3)The technical solutions shall include the works performed for the new pavement

structure and the works to remake the walkways.The works to be performed:- removal of asphalt haverage=16 and haulage to the storage;-removal of subbase of crushed stone h average=21and of the capping layer,

reusing later this material for the new capping layer (sand missed with gravel)- subgrade works, bringing its level to the design levels h=71 cm;- performance of capping layer, using sand mixed with gravel h=25;- performance of subbase of crushed stone mix C4 h=26;- kerbs;-base course of Cold Recycled Asphalt h=10 cm;- build-up of MHs and slots to the required levels.- layer of asphalt concrete MA- 6cm, layer of asphalt concrete - 4cm;- kerbs;- pavement on the walkways;

Conclusions: Under Option 1, the level of pavement shall be higher than theexisting surface by h average=12cm, that meaning that there will be no drainage ofrain waters in some upper part places of the street, in the area with buildings and atsome junctions with other streets.Accepted for design was Option 2.

The technical solutions were developed based on the following criteria:a) operational;b) strength and stability during operation;c) economic;d) site conditions.

a) The operational criteria considered for development of solutions were asfollows:

-traffic conditions and relations provided for a 12-year perspective;-improvement of conditions for pedestrians;-drainage of rain waters

b) Technical criteriaThe documentation includes technical solutions only for pavement rehabilitation

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works and rehabilitation works of pedestrian facilities.The technical criteria that served as a basis for the design are those provided for

technical expertise, those stipulated in GOSTs, regulations, standards and technicalspecifications for road and street design.

c) Economic criteriaThe final technical solution was selected taking into account how easy is to

implement such a solution, using current technologies and cost-effective materials.

d) Site conditionsTo select the geometric characteristics and the technical solution to be designed, it

was necessary to keep to the following site conditions:

-use of existing inventory (carriageway, walkways);-providing of bearing capacities;- connection of street with side streets

2.2.1. Description of the proposed technical solutions: Longitudinal ProfileThe longitudinal profile of the design street sector is, in general, the result of

changed levels due to pavement rehabilitation and adaptation of longitudinal slopesand cross falls to existing constraint elements on site (side accesses, streetjunctions).

The values of design slopes and ramps are within 1 and 33.

Typical Transverse Profiles

Proposed were 6 typical profiles, including solutions for transverse geometry of thewhole sector, with general adjustments, as follows: 20 - carriageway, 15 -walkways, 20-30 parking areas, 10 - green areas.

Geometry, Alignments and CurvesThe route includes one single alignment of 2184.36m length and there is no need to

change it.

2.2.2. Structural SolutionsThe structural solutions include the following type of works:

a. Recovery of pavement on the carriageway;b. Recovery of pedestrian walkways.

CarriagewayRehabilitation Solutions

The calculations show the following pavement structure:-wearing course of asphalt concrete - 4cm;-binding course of asphalt concrete MA- 6cm;- base course of Cold Recycled Asphalt with addition of 400 crushed stone- 10%,3%of emulsion and 2% of cement - 10cm;- subbase of 4 mix as per GOST 25607-94(granite aggregates) -26cm;

-Capping layer of crushed stone mixed with gravel and sand - 25cm;

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Walkwaysa) Walkways performed in the same existing location and seated on the

existing supporting layerThe structural pattern used for walkways shall be as follows :

- supporting layer the existing one, adding an average layer of 7 cm of M300crushed stone;- pavement of vibrated concrete tile blocks of 6cm, on a layer of stabilized sand of5 cm.b) Walkways performed in a new location and seated on a new supporting

layerThe structural pattern used for these walkways shall be as follows :

- supporting layer h= 15 cm of M300 crushed stone;- pavement of vibrated concrete tile blocks of 6cm, on a layer of stabilized sand of5 cm.

Parking areasThe structural pattern used for the parking areas shall be as follows :

- capping layer h=15 cm of sand of an average grading;- supporting layer h= 15 cm of M300 crushed stone;- pavement of vibrated concrete tile blocks of 8cm, on a layer of stabilized sand of5 cm.

MarkingMarking shall be performed to delineate the lanes and pedestrian crossings.

Road SignsThe street shall be furnished with road signs as per Drawings

Kerbs-all the damaged kerbs are to be replaced: along the street and on sectors relatedto the street limits, at the intersections up to the end of radius.

a) big-sized kerbs (limits of the carriageway): 100x30x18cm backed up withsimple B15 concrete of 38x20cm;b) small-sized kerbs (limits of green areas): 100x20x8cm backed up with simpleB15 concrete o f 81x15cm;- bevelled kerbs shall be installed at the pedestrian crossings and at the entrancesto the property yards or neighbourhoods;

Catchment and Disposal System for Rain Waters from the Street- It was proposed to design and construct a new sector of Sewage for Rain Waters

between Tighina Street an Izmail Street, to take the waters, which are notcollected by existing networks.

Slots. MHs-build-up of all the manholes in those areas, where the levels shall change;-replacement of grids, slots.

Green areas- a small part of the existing green areas shall be kept as they are, in areas ofwalkways construction the green areas shall be rehabilitated;- subject to rehabilitation shall be the green areas between the street kerbs and

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walkways;- interventions are necessary for the green areas on the side of the street: asregards to the finishing surface works and slope orientation towards the street.The width of the green areas between the walkways and street kerbs shall be as

per relevant transverse profiles.

The proposed solutions shall be implemented based on plans with detailsattached to the design.

Engineering DesignThe pavement works on the carriageway shall be performed in a mechanized wayand in compliance with the requirements of SNiP 2.05.02-85 and SNiP 3.06.03-85.

a1. Carriageway-removal of asphalt concrete layers;-removal of subbase and capping layer with reuse of the removed material for thenew capping layer (sand mixed with gravel), haulage of removed material to 1 kmdistance;- subgrade works, bringing the levels to the design levels;- performance of capping layer of sand mixed with gravel, adding crushed stoneremoved from the subbase -25cm;-performance of subbase of C4 mix of crushed stone (granite aggregates) - 26cm;-installation of kerbs, build-up of manholes to the required levels;-performance of walkways and parking areas;-priming of subbase;- performance of base course of Cold Recycled Asphalt with addition of 400crushed stone - 10%, 3% of emulsion and 2% of cement - 10cm;-preparatory works before pavement operations (cleaning of surfaces, tack coat);-asphalt layers of 6cm and 4cm on the carriageway;

a2. Walkways-supporting layer, bringing its levels to the design levels through removal ofpavement/subbase, recovering the supporting layer (using crushed stone of 15cm,sand mixed with cement of 5 cm,);-installation of kerbs along the perimeter;-performance of pavement of vibrated concrete tile blocks of 6 cm.

WORK CONTROLThe performed works be checked according to the Scope of Works and

Check SchedulesThe performed works shall be directly checked (inspected) both: upon thecompletion of the works and at the Final Acceptance phase.This control shall include:-red level of the longitudinal profile;-geometrical elements of cross sections;-declivities of the carriageway and walkways;-physical and chemical characteristics of the in-situ materials;-technical characteristics of precast units;-surface roughness on the carriageway.

2.2.3. Temporary diversion roads

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During performance of works, the traffic shall be diverted to another street, andpedestrians shall move along one walkway or temporary footways specialconstructed with lighting during the night time.

2.2.4. Water and Power SourcesWith the progress of works, there will be provided for the conditions for connection toutilities

2.2.5. Strength and stability to static and dynamic loadsThe rehabilitated pavement shall have to optimally carry the design static and dynamicloads. The location shall have local and general stability.

2.2.6. Catchment and Disposal of Rain WatersIn general, there shall be kept the same catchment and management system of stormwaters, the rehabilitation being performed in compliance with CPL compartment.

2.2.7. Operational SafetyBy rehabilitation of pavement, there will be implicitly improved the traffic conditionsa n d comfort, ensuring greater safety during operation.

2.2.8. WaterproofingThe newly constructed pavement is practically impervious. The technical solutionsensure the protection of pavement structure against infiltration of storm waters

2.2.9. Protection against noiseAsphalt pavements give a good noise reduction, if to consider that the frontal buildingsare situated at appropriate distances

2.2.10. Health and Environment ProtectionThe considered street is compliant with minimal requirements for human health andenvironment.

2.2.11. Service life of the street: 10 years

2.2.12. Environment Protection WorksReinstatement works upon completion of the main scope of works include

earthworks and seeding works.This kind of works include: levelling works, haulage, spreading of topsoil, grass

seeding and watering of landscaped areas.

MEMORIU GENERAL

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1. DATE GENERALE:

Denumirea investitiei: Reabilitarea strzii Alexandru cel Bun,or. ChiSinu,L=2184,36 m, faza:PE.

1.2 Elaborator: INSTITUTUL MUNICIPAL DE PROIECTRI "CHISINUPROIECT"

1.3 BENEFICIAR: "DIRECTIA GENERAL TRANSPORT PUBLIC SI CI DECOMUNICATIE".

1.4 Amplasamentul lucrrii: municipiul Chisinu ,zona Centru.

1.5 Tema.Tema acestui proiect a fost stabilit de beneficiar si const n:Reabilitarea strazii Alexandru cel Bun or. ChiSinu:

Cerintele de tem pentru stabilirea solutiilor tehnice cuprind :-dimensionarea sistemului rutier la traficul de calcul pentru o perspectiv de 12 ani(2014-2026);

-verificarea sistemului rutier la nghet-dezghet;-refacerea trotuarelor pietonale din zona strzii;-asigurarea scurgerii apelor meteorice(Constructia canalizrii pluviale-210m);-refacerea pantelor transversale ale carosabilului (20);-aducerea tuturor parametrilor geometrici ai traseului la caracteristicile

specifice ncadrrii tehnice a strzilor.Necesitatea lucrrilor propuse este argumentat de starea fizic

necorespunztoare a mbrcmintilor si de capacitatea portant redus acomplexului rutier.

Baza tehnic pentru ntocmirea documentatiei este urmtoarea:-documente normative, Gosturi;-planuri topografice;-cerintele beneficiarului;-expertize tehnice;

Consideratiile tehnice privind necesitatea raebilitrii sistemului rutier suntrelevate de expertizele tehnice ntocmite pe singurul tip de structur constructiv(expertiza tehnic pentru str. Alexandru cel Bun realizat de UNIVERSINJS.R.L.).

1.6 Descrierea situatiei existente1.6.1. ncadrarea tehnico- functional a strzii

Strada Alexandru cel Bun face parte din reteaua principal de strzi a orasuluiChisinu si se ncadreaz din punct de vedere tehnic, astfel: Strad secundar cu circulatia sens unic(2 benzi de circulatie);

Din punct de vedere al structurii constructive, strada Alexandru cel Bun esteconstituit dintr-un singur tip de structur.

ncadrarea n relieful zonei: relieful pe care se desfsoar traseul strziloreste ses.

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1.6.2. Caracteristici tehnice ale tronsonului1.6.2.1. Caracteristici geometrice Lungime total a strzii: 2184,36m(Pc 0+0.00 Pc 21+84.36):

Ltime carosabil: 6.5m; 9.0 m; Ltimi trotuare: -2.0m-7.10m; Ampriz(Linia Constructiei): - 24.00m;

Suprafata total:42350 m2o carosabil: 16 300 m2:o trotuare pietonale: 19 135 m2,din care:

trotuare cu mbrcminti din pavele vibropresate (executate recent): 5370 m2 trotuare cu mbrcminte asfaltic : 13765 m2

o spatii verzi: 5040 m2.o alte suprafeTe: 1875 m2.o bordurile sunt partial degradate, prezint: ciobiri, exfolieri, distrugerisuprafete,partiale abateri de geometrie.

1.6.2.2. Profil n lung: este alctuit din variatii de pante, rampe, cuvariatii cuprinse ntre:1 si 33.

1.6.2.3. Profilele transversale: sunt alctuite din parte carosabil, trotuare si localspatii verzi. Pantele transversale variaz ntre 5 si 30.la carosabil si 5 si30.pe trotuare, spatii verzi 15.Spatiile verzi au o dispozitie local.

1.6.2.4. Aliniamente si curbe: traseul este format dintr-un singur aliniament culungimea de 2184,36m.

1.6.2.5. Zone cu structuri specifice de drum: Sistem rutier existent : -mbrcminti din mixturi asfaltice;

(se apreciaz o grosime medie de 16cm)-fundatii din p.spart;(se apreciaz o grosime medie de 21cm)-strat drenant din nisip;(se apreciaz o grosime medie de 14cm)- pmnt patul drumului.(nisip argilos uSor)

Structura trotuare existente: -mbrcminti din pavele vibropresate de 4-6cm;

-strat de nisip pilonat de 2...3cm;-fundatii de piatr spart.-mbrcminte asfaltic.

Aceste trotuare vor fi demolate si refacute din nou. Sistemul colectare al apelor pluviale este alctuit din reteaua de guri de scurgere

racordat la canalizarea pluvial a orasului(vezi memoriu tehnic marca CPL); Spatiile verzi: sunt amplasate pe ambele parti a strzii.

1.6.2.6. Sistemul stradal de colectare si evacuare a apelor pluviale

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Gurile de scurgere si reTeaua de canalizare existent nu asigur ndeajunspreluarea apelor pluviale din careva zone de colectare si evacuarea acestora lareteaua de canalizare a orasului.

1.6.3. Evaluarea strii tehniceAprecierea strii tehnice s-a fcut pe baza expertizei tehnice, a observatiilor

vizuale si a planurilor topografice.Evaluarea strii tehnice a sistemului rutier ,avnd la baz expertizatehnic executat de SRL Universinj au condus la urmtoarele:

- mbracmintea bituminoas pe aceast strad este degradat fiind apreciat cucalificativul de stare de degradare REA,pe unele sectoare avind Si calificativul destare MEDIOCR;-starea de rugozitate are calificativul mediocru;-capacitatea portant a sistemului rutier determinat prin metoda actionrii staticeasupra sistemului rutier (cu deflectometru KP 204) este rea;-traficul de perspectiv 2014-2024 are urmtoarele valori: numrul de osii standard115KN, intesitatea traficului mediu zilnic (vezi anexa 1).

Componenta traficului este eterogen si cuprinde cu preponderent vehicule pentrutransport individual Si n comun,trolebuze,camioane mici.

Constatri privind starea tehnic a structurilor rutiere efectuate nainteaexecutrii lucrrilor de reabilitare a sistemului rutier si a structurilor pietonale

Degradrile sistemului rutier, relevate prin expertiza tehnic, sunt de tipstructural si de suprafat.

Degradri de tip structural: Degradri datorate oboselii; Faiantri; Fisuri si crpturi longitudinale; Plombri; FgaSe; Tasri;Gropi care afecteaz structura.

Degradri de suprafat: Fisuri si crpturi transversale; Gropi care afecteaz stratul de suprafat.

n acest context, s-a constatat c structura rutier a strzii este in totalmentecuprins de degradri importante ceea ce a condus la concluzia necesittiirefacerii stucturii rutiere pe toat strada.

1.6.4. Suprafata si situatia juridic a terenului ce urmeaz a fi ocupat deobiectivul de investitii

Lungimea total a tronsonului este de 2184,36m, suprafata total atronsonului este de 42350 m2.Terenul pe care este amplasat obiectivul este proprietatea public aConsiliului Local Municipal ChiSinu.

1.6.5. Parametrii tehnici ai amplasamentuluia) Caracteristicile geofizice ale terenului din amplasament.

Traseul care urmeaz a fi modernizat este situat ntr- o zon de ses,apartinnd Sarmatianului alctuite din argile, nisipuri avnd un grad redus deconsolidare. Traseul drumului se ncadreaz din punct de vedere al umidittii n

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tipul climatic I.b) Parametrii seismici si geo-climatici caracteristici amplasamentului:

Parametrii seismici Zona seismic 6-8 baluri

Parametrii climatici Amplasamentul este situat n zona climatica III cu te=18oC; Tipul climateric I, regim hidrologic 2b; Adncimea de nghet=-0,70m conform 218.046.01;

2. SOLUTII TEHNICE:

2.1. Generalitti:Dup analiza datelor expertizei tehnice a sistemului rutier existent, efectuat deUniversinj,n proiect au fost luate n examinare dou variante de calcul a reabilitriisistemului rutier.Varianta 1:(vezi calculul anexa 2)-decaparea stratului de mixturi asfaltice pe o adncime de 16 cm;-executarea stratului de baz din asfalt regenerat la rece cu adaos de piatraconcasata 400 - 10%, 3% emulsie si 2% ciment - 18cm;-strat de legtur din beton asfaltic MA- 6cm;-un strat de uzur din beton asfaltic - 4cm;Varianta 2: (vezi calculul anexa 3)Solutiile tehnice vor cuprinde lucrrile de executare a structurii rutiere noi si

refacerea trotuarelor.Lucrri executate:-decaparea stratului de mixturi asfaltice hmed=16 cu transportarea la depozit;-decaparea fundatiei din piatr spart hmed=21 Si a stratului drenant cu folosirea

mai trziu a materialului la executarea stratului drenant nou(amestec de nisip SipietriS)

- lucrri la executarea patului strzii pentru aducerea la cotele de proiect h=71 cm;- executarea stratului drenant din amestec de nisip Si pietriS h=25;- executarea fundaTie din amestec de piatr sparta C4 h=26;- borduri;-executarea stratului de baz din asfalt regenerat la rece h=10 cm;- ridicarea la cot a cminelor si a gurilor de scurgere.- strat de beton asfaltic MA- 6cm, strat de beton asfaltic - 4cm;- borduri;- mbrcminti trotuare;

Concluzii:n cazul variantei 1structura rutier se nlta deasupra cotelor suprafeteiexistente cu hmed=12cm ceea ce pe unele sectoare de strad nu asigura evacuareaapelor pluviale din partea de sus de lng constructii Si deasemenea la intersectiilecu unele strzi.n proiect a fost primit varianta 2.

Solutiile tehnice elaborate au fost stabilite pe baza urmtoarelor criterii:a)functionale;b)rezistent si stabilitate n exploatare;c)economice;

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d)conditii de amplasament.

a) Criteriile functionale avute n vedere la stabilirea solutiilor au fost:-asigurarea conditiilor si relatiilor de trafic pentru o perspectiv de 12 ani;-mbunttirea conditiilor pentru circulatia pietonal;-asigurarea scurgerii apelor pluviale.

b) Criteriile tehniceDocumentatia cuprinde solutii tehnice numai pentru lucrarile de reabilitare a

structurilor rutiere si pietonale.Criteriile tehnice care au stat la baza proiectrii obiectivului sunt cele

prevzute n expertizele tehnice, GOST-uri, normativele, standardele sispecifictiile tehnice specifice proiectrii drumurilor, strzilor.

c) Criteriile economiceAlegerea solutiei tehnice finale s-a materializat prin alegerea unor solutii usor de

realizat, cu tehnologii curente si materiale eficiente.

d) Conditii de amplasamentAlegerea caracteristicilor geometrice si a solutiilor tehnice ale obiectivului a

necesitat respectarea urmtoarelor conditii de amplasament:

-utilizarea zestrei existente (carosabil, trotuare);-asigurarea conditiilor de portant;-asigurarea racordrilor strzii cu strzile laterale.

2.2.1. Descrierea solutiilor tehnice propuse:Profil n lungProfilul n lung al sectorului stradal proiectat este n general, rezultatul refacerii

niveliticii ca urmare a reabilitrii sistemului rutier si adaptrii pantelorlongitudinale si transversale la elementele de constrngere existente peamplasament (accese laterale, intersectii strzi).

Pantele si rampele proiectate au valori ce se nscriu n limitele 1 si 33.

Profile transversale tipS-au propus 6 profile tip care cuprind solutiile de geometrie transversal a

ntregului tronson, cu adaptri generale, astfel: 20 parte carosabil, 15 trotuare,20-30 parcaje,10 spatii verzi.

Geometria traseului, aliniamente, curbeTraseul este format dintr-un singur aliniament cu lungimea de 2184,36m si nu

sunt necesare modificri ale acestuia.

2.2.2. Solutii de alctuire constructivSolutiile de alctuire constructiv cuprind urmtoarele categorii de lucrri:

a. Refacere mbrcminti carosabil;b. Refacere trotuare pietonale.

Parte carosabil

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Solutii de reabilitareDin nota de calcul ntocmit pentru dimensionarea sistemului rutier au rezultat:

-un strat de uzur din beton asfaltic - 4cm;-strat de legtur din beton asfaltic MA- 6cm;- strat de baza din asfalt recilat la rece cu adaos de piatra concasata 400 - 10%,3% emulsie si 2% ciment - 10cm;-strat de fundatie din amestec 4 conform GOST 25607-94(materiale din granit) -26cm;

-Strat drenant din amestec de piatra concasata-prundis de riu si nisip - 25cm;

Trotuarea) Trotuare ce se vor executa pe amplasamentul si pe suportul celor

existenteSistemul structural utilizat pentru realizarea trotuarelor va fi:

- strat suport existent cu adugarea n mediu a 7 cm de piatr spart marca300;- pavimente din pavele vibropresate de 6cm, pe substrat de nisip pilonat de 5 cm.b) Trotuare ce se vor executa pe amplasament si pe suport nou

Sistemul structural utilizat pentru realizarea trotuarelor va fi:- strat suport h= 15 cm de piatr spart marca 300;- pavimente din pavele vibropresate de 6cm, pe substrat de nisip pilonat de 5 cm.

ParcriSistemul structural utilizat pentru realizarea parcrilor va fi:

- strat drenant h=15 cm de nisip granulaTie medie;- strat suport h=15 cm de piatr spart marca 300;- pavimente din pavele vibropresate de 8cm, pe substrat de nisip pilonat de 5 cm.

MarcajeSe marcheaz benzile de circulatie si trecerile de pietoni.

IndicatoareSe amenajeaz strada cu indicatoare rutiere conform desenelor tehnice.

Borduri de ncadrare-se nlocuiesc toate bordurile degradate: pe lungimea strzii, sectorul aferentstrzii si intersectiile pna la sfrSitul razei de nscriere.

a) borduri mari (ncadrare carosabil): 100x30x18cm pe fundatie de 38x20cmdin beton simplu B15;b) borduri mici (ncadrarea spatiilor verzi): 100x20x8cm pe fundatie de 81x15cmdin beton beton simplu B15;- se vor monta borduri tesite la trecerile de pietoni si la accesele n ograzisau cartiere;

Sistemul stradal de colectare si evacuare a apelor pluviale- In proiect a fost propus pentru construcTie un sector nou de de canalizare

pluvial ntre strada Tighina Si strada Izmail n vederea asigurrii preluriiapelor care nu sunt colectate de reTeaua existent.

Guri de scurgere cmine

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-vor fi ridicate la cot toate cminele de pe zonele pe care nivelitica se modific;-vor fi nlocuite grtarele gurilor de scurgere. Spatii verzi- se pstreaz o mic parte din cele existente, n zonele n care se amenajeaztrotuarele vor fi reabilitate;- vor fi reabilitate spatiile verzi situate ntre bordura strzii si trotuare;- spatiul verde din zona lateral a strzii necesit interventii privind finisareasuprafetelor si orientarea pantelor spre strad.Spatiile verzi situate ntre trotuare si bordura strzii vor avea ltimi

conform profilelor transversale caracteristice.

Solutiile propuse se vor materializa pe baza planurilor de detaliu anexate laproiect.

Tehnologia de executieLucrrile de asternere a mbrcmintilor carosabile se vor executa mecanizat sitrebuie s ndeplineasc conditiile prevzute de 2.05.02-85 si 3.06.03-85.

a1. parte carosabil-se decapeaz straturile de beton asfaltic;-se decapeaz fundatia Si stratul drenant cu folosirea mai trziu a materialului

la executarea stratului drenant nou(amestec de nisip si pietris), se transportmaterialul decapat la distanta de pina la 1 km;- lucrri la executarea patului pentru aducerea la cotele de proiect;- executarea stratului drenant din amestec de nisip Si pietriS cu adaugarea depiatra spart provenit de la decaparea fundatiei -25cm;-executarea fundatie din amestec de piatr sparta(granit) C4 -26cm;-se realizeaz montarea bordurilor, aducerea la cot a cminelor;-se execut trotuarele ti parcrile;-se execut amorsare fundatiei;- se execut strat de baza din asfalt recilat la rece cu adaos de piatra concasata400 10%, 3% emulsie si 2% ciment - 10cm;-se execut operatiile de pregtire a suprafetelor pentru asternerea straturilor dinbeton asfaltic (curtire, amorsare);-se realizeaz asternerea covoarelor asfaltice pe carosabil 6cm si 4cm;

a2. trotuare-se amenajeaz stratul suport, aducerea la cota proiectat prin desfacerimbrcminti/fundatii, refacerea suportului (de piatr sparta 15cm, amestec denisip cu ciment de 5 cm,);-se monteaz bordurile perimetrale;-se realizeaz mbrcmintile din pavele vibropresate 6 cm.

VERIFICAREA LUCRRILORExecutia lucrrilor va fi verificat pe baza caietelor de sarcini si a

programelor de controlLucrrile executate vor fi supuse verificrilor directe att la terminarea fazelor delucrri ct si la receptia final.Aceste verificri sunt:-cota rosie a profilului n lung;

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-elemente geometrice ale sectiunilor transversale;-declivitti ale prtii carosabile si trotuarelor;-parametrii fizico-chimici ai materialelor puse n oper;-parametrii tehnici ai produselor prefabricate;-planeitatea suprafetei carosabile.

2.2.3. Ci de acces provizoriiPe timpul executiei lucrrilor circulatia auto va fi deviat pe o alt strad iar circulaTiapietonilor va fi deviat doar pe un singur trotuar sau vor fi amenajate treceritemporare, iluminate pe timp de noapte.

2.2.4. Surse de ap si energie electricn zon sunt asigurate conditiile de racordare la utilitti pe msura executiei.

2.2.5. Rezistenta si stabilitatea la sarcini statice si dinamiceSistemul rutier reabilitat asigur preluarea optim a sarcinilor statice si dinamiceluate n calcul. Terenul de amplasament are stabilitatea local si general asigurate.

2.2.6. Asigurarea colectrii si evacurii apelor pluvialeIn general se pstreaz sistemul actual de colectare si dirijare a apelormeteorice si se va reabilita sistemul conform compartimentului CPL.

2.2.7. Siguranta n exploatarePrin reabilitaraea sistemului rutier se sporesc implicit conditiile de trafic si confort,asigurndu-se o siguranta sporit n exploatare.

2.2.8. Izolatii hidrofugeSistemul rutier nou creat este practic impermeabil.Solutiile tehnice asigurprotectia structurii rutiere la infiltratiile din apa meteoric .

2.2.9. Protectia mpotriva zgomotuluimbrcmintile de tip asfaltic confer o atenuare buna a zgomotelor, ncontextul n care fronturile de cldiri sunt situate la distante corespunztoare.

2.2.10. Sntatea si protectia mediuluiStrada dat considerat se ncadreaz n exigentele minime din punct de vedereal impactului asupra snttii oamenilor si mediului ambient.

2.2.11. Durata de serviciu: strada 10ani.

2.2.12. Amenajri pentru protectia mediuluiRefacerea amplasamentului dup finalizarea lucrrilor prevzute n

obiectul principal necesit lucrri de terasamente si nsmntri.Aceste lucrri constau n nivelarea terenului, transportul, mprstierea pmntului

vegetal, nsmntarea cu iarb de gazon si udarea zonelor amenajate.

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3.2 Construction of Rain Water Sewage

Drainage of surface runoffs from Alexandru cel Bun Street is provided due tocarriageway longitudinal gradient and cross fall, and to existing Sewage as well.

On sector from Sfatul Tarii Street to . ibotari Street, the drainage is provideddue to existing 500mm Sewage pipe for rain waters with discharge into 1000mmpipe of the Sewage system in Sfatul Tarii Street.

The existing 1000mm sewage pipe for rain waters in itr. G. Banulescu-BodoniStreet conveys the water in the area of Alexandru cel Bun Street from A. Pann Streetand Diordita Street.

The 700mm pipe for rain waters in A. Pushkin Street conveys the water in thearea of Alexandru cel Bun Street from G. Cosbuc Street.

The 1200mm for rain waters in M. Eminescu Street conveys the water in thearea of Alexandru cel Bun Street from V. Alecsandri Street.

Below Tighina Street to Izmail Street, the design includes the construction of600mm sewage pipe for rain waters, which will take the rain waters from TighinaStreet and upper part of Alexandru cel Bun Street. The existing slots and manholesshould be raised to the design pavement levels.

The design quantity of rain waters was calculated according to SNiP 2.04.03-85(Sewage Pipelines and Structures)

In Alexandru cel Bun Street below Tighina Street there is a catchment area of12.5ha, which is located within rmeneasca Street, Stefan cel Mare Avenue, TighinaStreet and Columna Street.

According to calculations, the design debit for the catchment area (Attachment 1),once in a period when the design rainfall intensity is exceeded (=2years as per cl. 2.13of SNiP 2.04.0385), is equal to Gestim=614 l/sec

Gestim=614 l/sec is the capacity of 600mm pipes at 9 %0 (ppm).

The design includes 600mm R/C pipes for Rain Water Sewage according toGOST 6482.1-88 R/C Non-pressure Pipes. Technical Specifications, which will havethe proper capacity for the design debit.

The connecting pipes from slots to branches and between slots will be 300 and400 asbestos cement pipes as per GOST 1839-80 Asbestos Cement Pipes andFittings for Non-pressure Pipelines. Technical Specifications

The manholes and slots shall be as per Typical Design 902-09-46.88. SewageChambers and Wells For them there will be used round cast of iron hatches with lidsaccording to GOST 3634-79 Cast Iron Hatches for Chambers. TechnicalSpecifications. These will be of heavy types if installed on the carriageway part of theStreet.

A slot cast in situ with a R/C belt to support the frame and the grid is included inthe Design to take the water from Tighina Street, according to GOST 2600883.

The number of grids for the design slots is determined through calculations, takinginto account the debit of water per one grid at this or that slope of the carriageway,

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according to GOST 2600883 Cast of Iron Slots for Rain Waters. TechnicalSpecifications and Technical Instructions on Design and Construction of Sewage forRain Waters

The subgrade under the pipes will be as per Typical Standard Design 3.008.1-7/89R/C Non-pressure Pipes

To protect the R/C pipes against ground waters, their surface shall be twice coatedwith hot bitumen.

Backfill of trenches up to the bottom part of the pavement shall be performed ofsand

After the backfill, the pavement on the carriageway shall be reinstated, using thefollowing layers:

subbase of 600 crushed stone mixed with gravel and sand, C4 mixtureaccording to GOST 725607-94 h=30cm

base of macadam h=12cm

base course of hot dense Asphalt Mixture of coarse stone,

Type- -I, -I/2, 75(STB1033-2008) h=6cm

3.2 Constructia canalizrii pluviale

Scurgerea apelor de pe suprafata strzii Alexandru cel Bun e asigurat datoritdeclivitTii longitudinale Si transversale a carosabilului, la fel Si datorit canalizaTieipluviale existente.

Pe sectorul de la str. Sfatul Tarii pn la str. . ibotari scurgerea apelor easigurat de canalizatia pluvial existent de 500mm cu descrcarea n canalizaTiapluvial existent de 1000mm din str. Sfatul Tarii.

Canalizatia pluvial existent de 1000mm din str. itr. G. Banulescu-Bodoniasigur scurgerea apelor din zona strzii Alexandru cel Bun de la str.A. Pann Si str.DiordiTa.

Canalizatia pluvial de 700mm din str. A. Puskin asigur scurgerea apelor dinzona strzii Alexandru cel Bun de la str. G. Cosbuc.

Canalizatia pluvial de 1200mm din str. M. Eminescu asigur scurgerea apelordin zona strzii Alexandru cel Bun de la str. V. Alecsandri.

Mai jos de str. Tighina pn la str. Ismail, proiectul prevede constructia canalizatieipluviale de 600mm, care s asigure scurgerea apelor de pe str. Tighina si de pestrada Alexandru cel Bun de mai sus. Receptoarele existente Si cminele de vizitarevor trebui a fi concrescute pn la cotele proiectate ale mbrcmintei rutiere.

Debitul apelor pluviale a fost calculat conform SNiP-ului 2.04.03-85 (ReTele SifacilitTi de canalizaTie)

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Pe strada Alexandru cel Bun mai jos de str. Tighina se afl un bazin hidrografic cusuprafaTa de 12.5ha cuprins ntre str. rmeneasc, bd. Stefan cel Mare, str. Tighina,str. Columna.

Conform calculelor efectuate, debitul proiectat pentru bazinul hidrografic (Anexa1), n perioade de depSire de o singur dat a intensittii precipitaTiilor proiectate(=2 ani conform p. 2.13 SNiP 2.04.0385) constituie Gestim=614 l/sec

Gestim=614 l/sec este capacitatea de tranzitare a tuburilor de 600mm cu pantade 9 promile.

Proiectul include canalizatia pluvial din tuburi de beton armat de 600mmconform GOST-ului 6482.1-88 Tuburi din B/A de scurgere gravitational. SpecificatiiTehnice, care vor avea capacitatea de tranzitare a debitului proiectat.

n calitate de conducte de unire a receptoarelor cu bransamentele de directionareSi de unire a receptoarelor ntre ele vor fi folosite tuburi din asbest-ciment de 300 Si400, conform celor stipulate n GOST-ul 1839-80 Tuburi din asbest-ciment si tuburide racordare pentru retelele de scurgere gravitational. Specificatii Tehnice

Cminele de vizitare Si receptoarele vor fi executate conform Proiectului Tip 902-09-46.88. Cminele de Canalizatie si din capace rotunde din font conform GOST-ului 3634-79 Trape din Font pentru Cmine. Specificatii Tehnice. Acestea vor fi detip greu n cazul instalrii lor pe carosabil.

Pentru scurgerea apelor de pe str. Tighina, proiectul prevede 1 receptor monolit cuun bru de beton armat ca suport pentru peretii si gratiile acestor receptoare conformGOST-ului 2600883.

Numrul de gratii proiectate pentru receptoare este determinat conform calculului,tinnd cont de cantitatea de ap ce revine pentru o gril din gratii pe un anumit sector cuo anumit declivitate a carosabilului, conform GOST-ului 2600883 Receptoare dinfont. Specificatii tehnice si IndicaTiile tehnice privind proiectarea si constructiacanalizaTiei pluviale

FundaTia pentru tuburi va fi executat conform Proiectului Tip 3.008.1-7/89Tuburi din B/A de scurgere gravitational

n scop de protectie a tuburilor si constructiilor din B/A contra apelor freatice,suprafata lor va fi prelucrat cu 2 straturi de bitum.

Astuparea transeelor sub carosabil va fi efectuat, folosind nisip pn la cota dejos a mbrcmintei rutiere.

Dup astuparea lor, va fi restabilit mbrcmintea rutier, executndurmtoarele straturi:

stratul de fundatie din piatr concasat de marca 600 amestecat cu prundiS deru si nisip, amestec C4 conform GOST-ului 725607-94 h=30cm

stratul de baz din macadam h=12cm

mbrcminte rutier din amestec fierbinte dens din fractii

mari de piatr, Tip- -I, -I/2,75(STB1033-2008) h=6cm

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4.Reconstruction of Lighting street

The Design for Lighting Reconstruction in Alexandru cel Bun str. was developed inclose connection and together with the Design for Carriageway Reconstruction of thesteet (refer to 3070-D Drawing), based on task assignment from the Client, UrbanPlanning Certificate No.18/14 of 10.01.2014 and Technical Conditions, issued by.M.R.E.I. "Lumteh" No.40/12 of 25.05.2012 extending Nr.613 of 10. 10. 2013.

Lighting brightness for carriageway shall be equal, according to standardnormative NCM C 04. 02-2005, to 1,0 cd/m, for pavement 7,5lux.

As per calculations performed for carriageway lighting of the street, the designincludes LED luminaries. This type of luminaries allow to improve photometriccharacteristics, saving the energy consumption and being resistant to vibrations.

By protection degree of the insulating layer IP66, the luminaries are compliant withIEC 60529 international standar, by protection degree against electric shock-they are ofCategory II, nominal voltage 230V-50Hz.

The luminaries shall be mounted on one side of the street on design poles at aspacing of 30 m.

The Design documents include, in compliance with those approved by the Client,installation of steel poles Type with the standard admissible load to 40700 kN andthe height of free part of 9,0 m.

The poles shall be mounted along the kerbs, maximally keeping to the admissiblealignment and to the distance between the kerbs and the poles, and shall be of theproper type as shown on the Cross-sections.

The bases for the poles shall be s.24 - 28.All the existing OHE lines, power lines and communication lines should be

obligatorily removed from the poles and be reinstated, as necessary, according toindividual designs.

The design load for lighting installations in the avenue constitutes 10 kW.Category II, III by reliability.Power supply for lighting shall be from -252, -647, -639, PA-25, PA-11.The project is provided TelemanagementThe power supply and distribution lines shall be performed using cables, laid in

pipes.

The design works include:- installation of five power supply points PA-252, -647, -639, PA-25, PA-

11;- installation of one-arm brackets and luminaries 48LED (107W, 700 m) for

carriageway;- fuses 6770 Type mounted for protection of luminaries;

- power supply and distribution cable lines mounted for lighting and control cablelines mounted for lighting.

For protection of people against electric shock, it is provided for and shall beperformed automatic disconnection of power for the case of insulation breakdown(failure) inside luminary housing as per Chaper 1.7 of Electrical Installation Rules().

The Design docs also include the lighting of pedestrian crossings. Piedistriancrossing lighting

luminaires designed type 48LED 56W, 350mA. Luminaires will be fixed to mastsset type -6,0

or the closest pedestrian crossings outside lighting pillass will install additionaloutdoor lighting

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luminaires.Power supply for luminaries provided for pedestrian crossings shall be from power

supplypoints, with individual lighting control blocks with astronomical timer , through

cable lines-1 416mm.

Total length of cable lines - 8,54km.Number of luminaries for street - 83 eachesNumber of luminaries for pedestrian crossings - 21 eaches

4.Reconstructia iluminatului

Proiectul de reconstructie al iluminatului exterior pe str Alexandru cel Bun elaboratn complex cu proiectul reconstructiei a prtii carosabile strzii (vezi partea proiectului3070-D) , n baza temei de proiect, certificatului de urbanizm

Nr.18/14 din 10.01.2014 si conditiilor tehnice IMREI "Lumteh"40/12 de la25.05.2012 prelungite nr.613

de la 10.10. 2013.Norma de luminozitate mbrcmintei rutierei a prtii carosabile strzii conform

NCM C 04. 02-2005trebue s constitue 1,0 kd /m, pentru trotuar 7,5lux (Vezi pl. 6).

n conformitate cu calculul tehnic al iluminrii prtii carosabile a strzii suntproiectate corpuri de iluminare

diodice emitatoare de lumin (LED-ri). Utilizarea acestor corpuri de iluminatpermite mbunttirea parametrilor

fotometrice cu reducerea consumului de energie electrica.Gradul de protectie al stratului izolator ale corpurilor de iluminat este IP66 n

corespundere cu normativulinternational IEC 60529, gradul de protectie mpotriva electrocutrii-II, tensiunea

nominal 230V-50 Hz.Corpurile de iluminat vor fi instalate pe o parte strzii pe piloni proiectati la

distanta 30m.Documentatia de proiect prevede, n conformitate cu aprobarea beneficiarului,

piloni din metal de tip C cu sarcina normativ admisibil pn la 40 - 700 kN sinaltimea prtii libere 9,0m.

Piloni de montat de-a lungul pietrei de bordur, maximal pstrnd aliniamentuladmis , respectnd distanta

dintre piatra de bordur si marginea din fat a pilonului, indicat n profiletransversale.

Instalarea pilonilor de executat n corespundere cu planse 1015Fundatiile pilonilor sunt prevzute din monolit beton armat (pl.24 - pl.28).Toate liniile aeriene existente electrice si liniile de comunicatii, n mod obligatoriu

trebue s fie demontatede pe piloni si dup necesitate de restabilit conform proiectelor.

Sarcina calculat a instalatiilor de iluminare alctuieste 10 kW.Categorie de fabilitate -II,III.Alimentarea retelei de iluminare exterioar este prevzut de la punctele de

alimentare proiectate PA-252, PA-647, PA-639, PA-25, PA-11.n proiect este prevzut sistemul de telemanagement pentru monitorizare, control ,

msurare si dirijare al ilumina-tului exterior.

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Retele de alimentare si distributie sunt prevzute n cablu pozat n transee intuburi. Invelisul protector al cablurilor

a fost ales n corespundere cu cerintile de pozare a cablurilor. Sectiunea liniilor ncablu a fost admis n baza conditiilor

tehnice lund n considerare posibilitatea alimentrii retelei pe strazile adiacente.

Lucrrile de proiect includ:

- montarea a cinci puncte de alimentare PA-252, PA-647, PA-639, PA-25, PA-11;-montarea consolelor cu un singur brat cu corpuri de iluminat 48 LED (107W,

700mA ) pe partea corosabil;-montarea dispozitivilor de siguranta de tip B6770 pentru protectie corpurilor de

iluminare;-montarea liniilor n cablu a retelelor de alimentare , distributie al iluminatului

exterior si liniilor pentru dirijarea retelelor iluminatului exterior.Pentru protectie populatiei de la curent electric se privede si trebue s fie indeplinit

n conformitate cu cap. 1.7 deconectare automat a alimentrii cu energieelectric n momentul defectrii (strpunerii) izolatiei carcasei corpurilor de iluminat.

n documentatie de proiect este prevazut si iluminarea trecerilor de pietoni.Pentru iluminatul trecerilor de pietoni sunt proiectate corpurile de iluminat de tip48LED, 350mA, 56W.Corpurile de iluminat se vor fixa pe piloni din metal de tip -6,0sau pe piloni apropiati trecerilor pietonale- piloni iluminatului exterior pe care se vinstala suplimentar cte un corp de iluminat.

Alimentarea corpurilor de iluminat pentru trecerile de pietoni este prevzut de lapunctele de alimentare (blocuri de control cu regulator de timp astronomic), cu cabluri-1 416mm.

Lungimea total a liniilor n cablu -8,54kmNumrul corpurilor de iluminat - 83 buc.Numrul corpurilor de ilum. trec. pietonal - 21 buc

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Schedule with Timeframe for Performance of Works

Rehabilitation of Alexandru cel Bun Street, Chisinau town

Compartment: Construction Management

Calculations of Construction Period

1. Sewage for Rain WatersThe construction period for rain water sewage of R/C pipes of 600 mm diameter in

trenches with vertical slopes of 187 m length, as per cl. 2 page 228 of SNiP 1.04.03.85by interpolation method, will be as follows:

3,5 - 2/0,5 - 0,1 = 3,750,187 - 0,1 = 0,087

T = 2 + 3,75 x 0,087 = 2.5 months

2. LightingLength of sector - 8540 m.

The construction period, as per cl. 34 page 178 of SNiP 1.04.03.85, will be asfollows:

4 - 2/10 - 5 = 0,44 8,54 - 5 = 3,54

T = 0,44 x 3,54 + 2 = 3.5 months

1. Removal of concrete asphalt from walkwaysAs per estimate norms DJ109, operational time of equipment - 334 h-equip.

Work performance period in one and a half shift, will be as follows:334/ 30 x 8,2 x 1,5 = 1 month

2. Removal of concrete slabs from walkways and removal of stone kerbs S = 5370m2As per RpDB36 1m2 = 0,69 h-man 5370 x 0,69 = 3705 h

Work performance period in one and a half shift, will be as follows:6555/30 x 8,2 x 1,5 = 17 months

The works shall be performed by 2 teams of 5 people each17/2x5 = 2 months

3. Soil excavation, handling and haulage (in parking areas).As per estimate norms TsC59B, operational time of equipment - 817 h-equip.

Work performance period with 2 excavators, will be as follows:817/30 x 8,2 x 1,5 = 1 month

4. Installation of concrete kerbs. Length: 7670 m.As per DE10E 1m = 0,68 h-man. 7670 x 0,68 = 5216 h

Work performance period in one and a half shift, will be as follows:5216/30 x 8,2 x 1,5 = 14 months

The works shall be performed by 2 teams of 5 people each14/2x5 = 1,5 months

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5. Milling of worn out asphalt concrete.As per estimate norms D181B, operational time of equipment - 2417 h.

The works shall be performed using 2 milling machines2417/30 x 8,2 x 1,5 = 6,5 months 6,5/ 2 = 3 months

6. Surface levelling using a grader, cutting the bumps.As per estimate norms TsE05B, operational time of equipment - 205 h.

The works shall be performed using one equipment205/30 x 8,2 x 1,5 = 1 month

7. Mixing the aggregates from the quarry to be used for subbases, lower layer.As per estimate norms DZ03A, TsCO3G1, TsJ5OA, D1110, operational time ofequipment- 1938 h-ut.

The works shall be performed using one equipments1938/30 x 8,2 x 1,5 = 5/2 = 2.5months

8. Levelling layer of ballast h=27 cm.As per estimate norms DJ110, operational time of equipment - 229 h-equip.

The works shall be performed using one equipment229/30 x 8,2 x 1,5 = 1 month

9. Laying of upper layer of Cold Recycled Asphalt, h=10 cm. S= 22700 m2 and tackcoat of bitumen.As per estimate norms DB16Hnp, operational time of equipment - 430 h-equip

The operational time of one equipment is as follows:430/30 x 8,2 x 1,5 = 1 month

10. Laying of base course h = 6mm of hot fine mixture with tack coat of bitumen. S =16300 m2.As per estimate norms DB16H, operational time of equipment - 430 h

The works shall be performed using one equipment430/30 x 8,2 x 1,5 = 1.5 months

11. Laying of wearing course of crushed stone mixed with mastic h = 4 cm,S = 18050 m2As per estimate norms DB16H, operational time of equipment - 191 h-equip.

The works shall be performed using one equipment191/30 x 8,2 x 1,5 = 0.5 months

12. Sand layer at acceses to neighborhoods, parking areas, entrances to propertyyards, h=15 cm.As per estimate norms DA06B2, operational time of equipment - 172 h-equip.

The works shall be performed using one equipment172/30 x 8,2 x 1,5 = 0.5 months

13. Subbase layers by mechanised method h = 12 cm of crushed stone at theentrancies to property yards and parking areas. S = 5750 m2.As per estimate norms DJ111, operational time of equipment - 83 h - equip.

The works shall be performed using one equipment83/30 x 8,2 = 0.5 months

14. Subbase layers by mechanised method h = 12 cm for walkways. S = 17200 m2Operational time of equipment, as per DJ111, shall constitute - 251 h-equip.

The works shall be performed using one equipment251/30 x 8,2 x 1,5 = 1 month

15. Pavement of precast concrete tile blocks at the entrances to property yards andparking areas. S = 22950 m2As per estimate norms DE18A, work performance time shall be as follows:

22950 x (0,58 + 0,015)= 13655/30 x 8,2 x1,5 x 2 x10 = 2 monthsThe works shall be performed by 2 teams of 10 people each.

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Grafic calendaristic pentru indeplinirea lucrrilor

Reabilitarea strzii Alexandru cel Bun, or. ChiSinu

Compartiment: organizarea construcTiei

Calcul a termenului de construcTie

1. Canalizare pluvialTermenul de construcTie a canalizrii pluviale din Tevi de beton armat cu diametrul

600 mm n tranSeie cu pereTi verticali cu lungimea de 187 m, conform p.2 la pag. 228SNiP 1.04.03.85 prin metoda interpolrii va fi:

3,5 - 2/0,5 - 0,1 = 3,750,187 - 0,1 = 0,087

T = 2 + 3,75 x 0,087 = 2,5 luni

2. Iluminarea exterioar.Lungimea traseului - 8540 m.

Termenul de constructie, conform p.34 la pag. 178 SNiP 1.04.03.85 va fi:

4 - 2/10 - 5 = 0,44 8,54 - 5 = 3,54

T = 0,44 x 3,54 + 2 = 3,5 luni

1. Decaparea betonului asfaltic de pe trotuare.Conform normelor de deviz DJ109, timpul de lucru a mecanismelor - 334 h-ut.

Termenul de ndeplinire a lucrrilor ntr-un schimb Si jumtate va fi:334/ 30 x 8,2 x 1,5 = 1 lun

2. Desfacerea trotuarelor din dale de beton Si borduri din piatr S = 5370 m2Conform RpDB36 1m2 = 0,69 h-om 5370 x 0,69 = 3705 h

Termenul de ndeplinire a lucrrilor ntr-un schimb Si jumtate va fi:6555/30 x 8,2 x 1,5 = 17 luni

Lucrrile vor ndeplini dou echipe cte 5 oameni17/2x5 = 2 lunI

3. Excavarea, ncrcarea Si transportarea solului (n zona de parcare).Conform normelor de deviz TsC59B, timpul de lucru a mecanismelor - 817 h-ut.

Termenul de ndeplinire a lucrrilor a 2 excavatoare va fi:817/30 x 8,2 x 1,5 = 1 lun

4. Montarea bordurilor din beton. Lungimea 7670 m.Conform DE10E 1m = 0,68 h-om. 7670 x 0,68 = 5216 h

Termenul de ndeplinire a lucrrilor ntr-un schimb Si jumtate va fi:5216/30 x 8,2 x 1,5 = 14 luni

Lucrrile vor ndeplini 2 echipe cte 5 oameni14/2x5 = 1,5 luni

5. Tierea cu freza a stratului de beton asfaltic uzat.Conform normelor de deviz D181B, timpul de lucru a mecanismelor - 2417 h.

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Lucrrile vor fi ndeplinite de 2 freze2417/30 x 8,2 x 1,5 = 6,5 luni 6,5/ 2 = 3 luni

6. Nivelarea cu autogreiderul a suprafeTei terenului prin tierea damburilor.Conform normelor de deviz TsE05B, timpul de lucru a mecanismelor - 205 h.

Lucrrile vor fi ndeplinite de un mecanism205/30 x 8,2 x 1,5 = 1 lun

7. Prepararea amestecului din agregate de carier pentru fundaTii de drumuri, stratulde jos.Conform normelor de deviz DZ03A, TsCO3G1, TsJ5OA, D1110, timpul de lucru amecanismelor - 1938 h-ut.

Lucrrile vor fi ndeplinite de 2 mecanisme1938/30 x 8,2 x 1,5 = 5/2 = 2,5 luni

8.Amenajarea stratului de egalizare din balast h=27 cm.Conform normelor de deviz DJ110 timpul de lucru a mecanismelor va fi - 229 h-ut

Lucrrile vor fi ndeplinite de un mecanism229/30 x 8,2 x 1,5 = 1 lun

9. ASternerea stratului de sus din din beton asfaltic reciclat cu h=10 cm. S= 22700 m2Si amorsarea cu bitum.Conform normelor de deviz DB16Hnp timpul de lucru a mecanismelor - 430 h-ut

Timpul de lucru a unui mecanism va fi430/30 x 8,2 x 1,5 = 1 lun

10. ASternerea stratului de baz al mbrcmintei rutiere h = 6 cm din amestecfierbinte microgranular Si amorsarea cu bitum. S = 16300 m2.Conform normelor de deviz DB16H timpul de lucru a mecanismelor - 430 h

Lucrrile vor fi ndeplinite de un mecanism430/30 x 8,2 x 1,5 = 1,5 lun

11. ASternerea stratului de uzur din amestec de pieatr concasat Si mastic h = 4 cm,S = 18050 m2Conform normelor de deviz DB16H timpul de lucru a mecanismelor - 191 h-ut

Lucrrile vor fi ndeplinite de un mecanism191/30 x 8,2 x 1,5 = 0,5 luni

12. Amenajarea stratului de nisip la ntrrile n cartier,n parcri, n curTi h= 15 cm.Conform normelor de deviz DA06B2, timpul de lucru a mecanismelor - 172 h-ut

Lucrrile vor fi ndeplinite de un mecanism172/30 x 8,2 x 1,5 = 0,5 luni

13. Executarea mecanizat a straturilor de fundaTie h = 12 cm din ppiatr spart lantrrile n curTi la parcri. S = 5750 m2.Conform normelor de deviz DJ111, timpul de lucru a mecanismelor - 83 h - ut.

Lucrrile vor fi ndeplinite de un mecanism83/30 x 8,2 = 0,5 luni

14. Executarea mecanizat a straturilor de fundaTie h = 12 cm la trotuare. S = 17200m2 Timpul de lucru a mecanismelor conform DJ111 va fi - 251 h-ut

Lucrrile vor fi ndeplinite de un mecanism251/30 x 8,2 x 1,5 = 1 lun

15. Pavaje executate din plci de trotuare din beton prefabricat. S = 22950 m2Confarm normei de deviz DE18A timpul ndeplinirii lucrrilor va fi:

22950 x (0,58 + 0,015)= 13655/30 x 8,2 x1,5 x 2 x10 = 2 luniLucrrile vor fi ndeplinite de 2 echipe cte 10 oameni.

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