RE ROUTING LAYING TESTING AND COMMISSIONING OF MDPE GAS PIPELINE NETWORK IN AGARTALA CITY

Amount

Pipeline

Supply, Laying & Commissioning of GAS Pipe Line In any unprepared surface (Katcha Surface /Built-up surface/ Hard surface as per Tender Spec

Receiving and taking over as defined in the specification, handling, loading, transportation unloading of supplied PE 100 SDR11 line pipes of all size to Contractor,s own staock yard (s)/ work-sheet(s) including preliminary activities, preparation of Drawings, wherever required for crossing etc., carryingout insppection of company supplied PE pipes at the time of takingover providing insurance cover, incluidng suply of accessorirs of all sies & thickness like bends, Couplers, Endcaps, Tee, PE reducer, CS to PE fittings, Saddle Tapping, Warning Mat etc., Handling, Stringning, Uncoiling, alinging of the PE line pipe on the pipeline Right-of-use/route, laying/installation of PE line pipe alongwith required accessories as mentioned above as per specification wherever required depending on site condition including excution of all works; additional lands required for contractor storage, fabrication, access for constructioj; procurement and supply of all materials (except owner supplied materials) consumables, equipments, labour and other inputs,

Carrying out all temporary, ancillary, auxillary works requirted to make the PE pipelines ready for commissioning as per drawings, specifications, scope of work indicated inPTS and other provisions of Contract Documents and instruction of Engineer-of-Charge, incluidng but not to carrying out the followings works.

Surveying of route and detours requirod at the time of excution including marking the same in topographical sheet, preparation of construction drawings showing survey details, and submit same to owner for review/ approval.

Preparation and getting approval of schedule, excution procudures, drawings/ sketchs/ wherever required, making trial pits to determine the underground utilities, service etc., restoration of the abandoned trial pits to orginal condition

Staking and installation of construction markers, clearing, fencing, grubbing, cuttiong of trees, full filling all the requirements of various statutory/ environment authorities to the entire satisfaction of concered authorities, grading of works area.

Grading of ROU, barricationg the work area as per local authorities norms & to the entire satisfaction of Owner/ Engineer-In-Charge., installation safety signs.

Trenching to all depths by excavation in all types of soils including soft/rocky strata amnd differenet type of pavement/ footpath, roads etc., including rock breaking, chiselling or otherwise cutting etc., as required and storing excavated sil, reuseable materials at designated area a dirrected by Engineer In Charge and to a width to accommodate the pipeline as per the relavent standard/ specification ets., [The minimum depth of the top of pipeline shall be 1.0 m measured from the top of pipeline coating to the top of undistrubed surface of the soil or as per the specification/OISD-226 & PNGRB latest guidelines whichever is higher]. dewater of the trenches if required as per site condition reparing of all damaged utilities if any, and payment iof any compensation (if claimed by owner/ other utility agencies)

Uncoiling/ Stringing & aligning of PE pipes, clamping, jointing of the pipe ends/fitting/valves by qualified personal; using approved electro-fusion techniques as per specification.

lnstallation and electro-fusion jointing of valves wherever required and as directed by Engineer-in-Charge.

Pneumatic testng, purging With nitrogen and commissioning as per specification and approved procedures providing all tools and tackles, nitrogen, instruments, manpower and other related accessories and as per the instruments of Engineer-in-Charge

Final clean up of right-of-use or area disturbed by construction activities during their construction activities for laying of pipeline works and disposal of debris and surplus material to designated disposal areas and backfilling of trench and compaction of the same as per satisfaction of Owner and / Or as directed by the Engineer-In-Charge.

Maintaining the completed pipelines/ installabon for any defect, failures during defect liability period as specified m tender documtnt

Handing over the comleteded works to ASCL for their operation/ use and obtainnig "no objection cerficate" from ASCL/TNGCL.

Preparation and submission a Daily progress report, Laying Graphs/ PE/ GI line cards on daily basis.

On completion of gas charging pipelines. Preparation and submission of As-built drawings, crossings details, termination, utility graphs and deviation statements.

Submission of all documents required for contract dosure In numbers as mentioned in contract.

Other associated job, if any (Not mentioned above), shall be requiring for satisfactory completion of the job in all respect shall also be covered under the scope of work and has to be executed by the Contractor within specified schedule at no extra cost to ASCL. All the work shall be executed in accordance with the provision of contract.

20 mm PE 100 pipe

32 mm PE 100 pipe

63 mm PE 100 pipe

90 m PE 100 pipe

125 mm PE 100 Pipe

180 mm PE 100 pipe

The length of the pipelines are tentative

For restoration of asphalt/ concrete roads, the item for construction of asphalt top/ concrete top/ red stone/ paver shall be paid separately as per the rates quoted under BoQ Item 1.29 - Restoration

Restoration

Restoration of the roads, pavements, channels, footpaths, tiles, stones etc., to orginal condition including supply of the approved quality materials required, as per local authorities norms, obtaining NOC from concerned local authorities/ land owners/ third party inspection agencies designated by ASCL and to the satisfaction of Engineer-In-Charge.

Asphalting

Cement Concrete

Tiles/paver/blocks/curb stones, red sand stone

Brick soling/ channels, etc.

Pipe Laying using moling technique (without casing) for PE pipe size of:

Laying of all PE pipe (PE 100 SDR11), including supply of couplers, End Caps as required to complete the job as defined in PTS

Survey of under ground utilities, excution for the work as per specification, approved procedure, including excavation of pits moling with the hole size not exceding 20% of the pipe dia, jointing and insertion of carrier pipe, testing & commissioning and restroration of the pits to orginal condition, submision of as-built graphs as per specification and the instructions of the Engineer-in-Charge.

20/32 mm PE 100 pipe

63 mm PE 100 pipe

90 mm PE 100 pipe

125 mm PE 100 pipe

180 mm PE 100 Pipe

Pipe Laying using Directional Drilling technique (with out casing pipe) for PE pipe size of:

Laying of all PE pipe (PE 100 SDR11), including supply of couplers, end caps etc., as defined in PTS

Survey of Underground utilities, Submission of profile for approval, excution of the work as per specification approved procudure, including excavation of pits and subsequent backfilling compaction, jointing and insertion of casing pipe and carrier pipe, testing & commisioning, restoration of the pits to orginal condition, submission of As-built graph as per specification and the instruction of Engineer-in-Charge.

90 mm PE 100 pipe

125 mm PE 100 pipe

180 mm PE 100 Pipe

Installation of Valve pit including Supply of Valves

All civil works including supply of all materials including isolation valves ( as per PTS) as given, excavation of pit, piping supports including all PCC and RCC works for valuvs pit, pedestals with insert plates as required, sealing of pipe at valve pits, providing cover etc., and finishing, clean up.

PE valve, 32 mm dia

PE valve, 63 mm dia

PE valve, 90 mm dia

PE valve, 125 mm dia

PE valve, 180 mm dia

Fabrication & Installation of Markers

Plate marker with foundation

Supply, fabrication and installation of plate markers as per the attached drawings, including all associated civil works such as excavation and construction in all types of soils, construction and padestals and grouting with concrete, cleaning, stencil.

laying of Brick layer/concrete/or impact resistant tapen

Providing single layer of brick /concrete/ or impact resistance tapeto entire width of trench above warning mat placed in ternch over the laid pipeline as per COSD 214, standered drawing, specification and instruction of owner,. (Rate to include cost of all labour, tools, tackles, equipments, hire charges & supply of all materials, etc.).

Concrete of width of PE pipeline ternch as per drawings (80 mm thick)

Impact resistant tape for width of PE pipeline ternch.