LAYING AND ASSOCIATED WORKS FOR GAIL-VIJAIPUR TO NFL-VIJAIPUR PIPELINE

SECTION-A

PART-A -24" PIPELINE LAYING BY OPENCUT/ HDD/ RAILWAY CROSSING

PIPELINE LAYING /INSTALLATION BY OPEN CUT METHOD

Laying/ installation of CARRIER coated line pipe, associated fittings and accessories, etc. as per specifications, drawings, other provisions of Contract and instructions of Engineer-in-Charge, including but not limited to carrying out the following: "Receiving and taking over" of "free issue" Line pipes from Trailers received from Supplier's / Dump Yard location in Vijaipur; Carrying out inspection of Line pipes at the time of receiving and taking-over, recording of pipe & coating defects at the time of taking over in the presence of Owner's representative, handling, hauling and transportation from designated place of issue to Contractor's storage and/or Worksite (s); including arranging all equipments, trailers, trucks & manpower; fabrication, consumables, equipment, labour, etc.; Stacking and installation of construction markers, Carrying out repairs of pipe and coating defects not attributable to Owner; thorough internal cleaning of all pipes by suitable methods to remove debris, shots, grits etc.; Clearning of the ROU, cutting the shrubs, grading, removal of unwanted material from ROU, trial pits for locating the existing pipeline/utilities/cablings, Stringing of line pipes along ROU including providing straw bags, soft padding/sand padding; Aligning, fabrication and installation cold field bending, cutting and beveling (as required) of pipes for welding and field adjustments, NDT & NDT of re-beveled area, welding, carrying out destructive & non- destructive testing of welds required as per approved NDT specifications (including PAUT + TOFD), 100% radiography of weld joint and providing all requisite equipment, labour, supervision, materials, consumables etc.; carrying out repairs of weld joints as required, carrying out Re- PAUT+TOFD and other non-destructive tests on repaired joints, etc. At the descretion of Owner/EPCM,in place of (PAUT + TOFD), RT may also be opted as per need or actual site condition/requirement without any extra cost implication to Owner. Contractor has to maintain the record of DGPS coordinates of each weld joints (including tie-in joints),Bends and including the same in field inspection reports in the section in a prescribed format and will submit the same to EPCM/Owner for review/approval. Also the GPS coordinate of all the crossing, HDD, Railways, Water body, reference locations and any other point as directed by EIC to be recorded and included in the format and report. Carrying out air cleaning, pigging, flushing, cleaning and hydrostatic testing of complete pipeline including pre-testing of designated sections complete as per specification and approved by Owner/ EPCM to specified pressures indicated elsewhere and duration after stabilization as per specification, providing all equipment, pumps, fittings, instruments, dead weight tester, pressure recorder, thermocouples etc., and services, supervision, labour, consumables, water including supply of corrosion inhibitor, air, etc. as required, locating of leaks and rectification of defects, re-testing after rectification, dewatering, swabbing, drying after successful completion of hydrotesting of entire section and as approved by Owner/ Owner’s Representative.

Installation of carrier pipe including concrete coated pipes (wherever required), (Concrete Coating on pipes will be paid separately) at all crossings including roads/ canals/ nala/ water crossings etc. including pre-testing as required; Carrying out installation of carrier pipe in the casing pipe at cased crossings (wherever required); Supply and application of Field Joint Coating at all weld Joints, long radius bends (fabrication of 6D bends by induction heating covered separately), buried fittings etc.; Supply & Installation of warning tape. Lowering the pipelines in trench, Trench Preperation , providing required padding over and around the pipeline with sand/graded material (in rocky strata), backfilling with available approved excavated material and/or other suitable soil ( supply and providing of soft soil for pre & post padding in Rocky area as directed by Owner/EPCM); Supply and installation of slope breaker as per specifications and drawings in steep slope areas, wherever required; Carrying out hydrostatic testing including air cleaning, flushing, filling, gauging, pressurization of complete pipeline in various test sections as approved by Engineer-In-Charge to the specified test pressure, providing all equipment, pumps, fittings, instruments, dead weight tester, all types of pigs etc., and services, supervision, labour, consumables, arranging water required for hydrostatic testing including supply of foam pigs, air, etc. as required, locating of leaks and rectification of defects attributable to Contractor, re-testing after rectification, successful completion of hydro-testing of pipeline,De-watering, Swabbing & Drying (as per approved method of drying i.e. whether vacuum or dry air); including all tie-in(s) with the pipeline/ piping installed by others including cutting of test header, re- beveling as required; Carrying out all temporary, ancillary, auxiliary works and all incidental works required to make the pipeline ready for pre- commissioning;

Repair of defects recorded during EGP/gauge plate run or otherwise including cutting, beveling, welding, NDT, field joint coating etc.; as applicable, Final clean-up and restoration of right of use including obtaining NOC from respective statutory authorities as required and disposal of debris and returning all surplus material to designated disposal areas/storage yard, as directed by Engineer-In-Charge; Restoration of land, facilities and boundary wall etc. at associated facilities dismantled/damaged by the Contractor during construction; Obtaining work permits/ NOC from various statutory authorities having jurisdiction and complying with all stipulation/conditions/recommendation of the said authorities; Preparation of as-built drawings, pipe-book and other records. SOR shall be read in conjunction with Project drawings, scope of work, specifications, standards and other provisions of contract document.

The work includes the Survey data & site preparation, Stringing/Chainges in direction, Beveling of pipe element, Welding Procedure Qualification & Welders Qualification, Welding of pipe element, Inspection & testing of production welds, Field joint coating, controlled blasting, chiseling, etc., Material hand over & material handling, Lowering-in & ballasting, Hydrotesting, Swabbing, Drying. All crossings execution HDD or cased crossing as mentioned in Crossing List (including installation of carrier pipe inside the Casing at cased crossing, if required) , Backfilling (for all depths in all types of soil, soft /hard rock) , including trench padding with sand, graded earth in rocky areas & rock shield( if required as per specs) reinstatement (restoration) and preparation of As-built Alignment & Crossing drawings. All above works shall be executed in accordance with scope of work, GTS, PTS, Drawings and other provisions of contract document and instructions of Owner/Owner's representative, including but not limited to carrying out the above works. Note: 1. Supply and Installation of OFC and HDPE Ducts along the entire pipeline route, adjacent to the new pipeline, along with all required accessories, fittings and associated items, is covered separately elsewhere in the SOR. 2. Contractor is advised to visit the site prior to quote for the Tender. Wherever, due to space constraints and insufficient soil cover for the existing pipe, heavy vehicle movement is not allowed in existing pipeline corridor. Hence, lifting and movement of pipes and all necessary equipment (Welding Machine, Testing Equipmets etc.) shall be done by manual leading with help of trolley, chain pulley at those specific of locations in the ROU. Contractor is advised to visit the site accordingly prior to quote the Bid.

Installation of mainline with 1.2 Meter top cover , field joints coating, bends etc. , associated fittings and accessories, etc. as per Scope of Work, specifications, drawings, pipeline alignment sheets etc. and provisions of Contract and as per instructions of Engineer In-charge.

Obtaining work permits/ NOC from various statutory authorities having jurisdiction, before execution of the work, and complying with all stipulations/ conditions/ recommendations of the authorities; clearing & grading of ROU; Counting the number and type of trees before cutting in presence of concerned authorities and keeping record thereof, Cutting/ uprooting of trees within ROU Locating existing pipelines in pipeline corridor using pipeline locator, trial pits, GPR etc.; Verifying number and inter-spacing of various pipelines, verification of complete pipeline alignment, turning points, bend angles etc given in IFC alignment sheets before start of pipeline laying works, updation of alignment sheets, as required, Providing additional soil cover for adjacent running pipelines by earth filling, wherever necessary for movement of equipment; Safeguarding existing pipelines during construction activities; Providing MS plates of suitable size & thickness/ wooden sleepers for safe movement of construction equipment on existing running pipelines, as required; Manual Trenching to all depths including excavation in all types of soils including chiseling, as required for laying the new pipeline; de-watering of prepared trench in high water table areas; shoring and shuttering/ sheet-piling of trench to prevent collapse; temporary supporting of adjacent exposed pipelines (if any); loading, handling, hauling, transportation and unloading of coated linepipes from Contractor's workshop/ yard etc to worksite(s) including arranging all equipment, trailers, trucks & manpower; Arrangement of all additional land required for Contractor's storage, fabrication, access for construction; supply of all materials (except Company supplied materials), consumables, equipment, labour, etc; arranging temporary additional land to carry out construction activities; Stringing, Aligning, bending, cutting and beveling (as required), NDT(Ultrasonic Test) of rebevelled area, welding, PAUT+TOFD Testing and providing all requisite equipment, manpower, materials; carrying out repairs of defective weld joints & re-radiography and other NDT

Contractor has to restore any damage of road, drain, pavement, footpath or any other structure related to municipality or any other authority to its complete satisfaction. Contractor has to liaison with the authority beforehand the start of the work and inform the methodology and schedule of the work to authority so that any descrepancy at later stage may be avoided. After completion of work contractor has to submit NOC from respective authority. Also, Contractor has to plan the Pipeline work in such a way that the public or any other utility inconveniency should be minimized. During laying of Pipe under bitumen road/paver block road, alternate temporary motorable road has to be constructed by contractor. Cost of Restoration of road is included in the quoted rate.