LAYING, TESTING AND COMMISSIONING OF 4 INCH NBx 10.5 Km UNDERGROUND STEEL PIPELINE ALONG WITH ASSOCIATED WORKS FOR GAJAPATI GA OF GGL

CARBON STEEL PIPES

PIPELINE LAYING / INSTALLATION

"Receiving and taking over" as defined in the specifications, handling, loading, transportation and unloading of Owner supplied 3-Layer PE coated and bare linepipes from Owner's designated stack-yard to Contractor's stock yard/workshop/work-site including preliminary activities, preparation of drawings, wherever required for crossing etc. including handling, stacking, stringing on the pipeline Right-of-Use/ pipeline route alignment, carrying out inspection of company supplied materials including linepipes at the time of taking over, laying/ installation of coated linepipes as per specification wherever required depending on site condition including execution of all works, "taking over", handling , including loading and unloading, transportation of Owner supplied materials other than linepipe from Owner's designated place (s) of issue to work site, arrangement of all additional lands required for Contractor's storage, fabrication, access for construction, procurement and supply of all materials (except Owner supplied materials), consumables, equipment, labour and other inputs, carrying out all temporary, ancillary, auxiliary works, ready for commissioning of pipeline as per drawings, specifications, other provisions of Contract document and instructions of Engineer-in-charge, including but not limited to carrying out the following works:

Pre-construction survey, necessary cover required over the carrier pipeline, based on site visit, collection of data (if required) from concerned Authority including design and detail engineering and making of drawings for getting their approval from concerned Authority/Engineer-in-charge, getting work permit/NOC for utlities crossings (if any) encounterd prior to start the execution of work.

Staking and installation of construction markers, clearing, fencing, grubbing, full filling all the requirements of various statutory/ environment authorities to the entire satisfaction of concerned authorities, grading / cleaning of work area. Shifting of all obstruction within the ROU/ pipeline corridor as per Pipeline route alignment underground utilities viz. electrical lines/ poles, telephone line / poles, foreign pipeline, etc. co-ordination with concerned authorities and obtain permissions from these authorities.

Barricading the pipeline construction area prior to execution of the works as per drawings enclosed with tender document and to the entire satisfaction of Owner / Engineer-in-charge.

Trenching to all depths and to a width to accomodate the carrier pipeline and/or optical fiber cable/cable conduit during lowering by excavation in all types of soils, pebbels, cobbles, boulders, structures and all type of rockey strata including raking up of built-up surface / Hard surface of any type including metal road/ surface , concrete road/ surface, bituminous road/ surface, asphalt road/ surface etc. which is breakable in pieces shall be carried out either by breaking, chiselling or otherwise cutting etc manually or using pneumatic machine. Further, built-up surface of any type including tiled surface, paver block, brick lined etc.which is breakable/removable in pieces manually shall be carried out without using pneumatic machine. All tiles/ slabs/ paver block/ curb stones etc.removed during excavation shall be placed properly and storing excavated soil, reusable materials at designated area as directed by Engineer in charge and to a width to accommodate the pipeline as per the relevant standard/ specification etc. [The cover of pipeline shall be in between 1.0 meter to 1.5 meters depending upon site conditions and shall be measured from top of pipeline coating to the top of undisturbed surface of the soil or as per SCC/ relevant code, whichever is higher]. Dewatering of trenches if required as per site condition. Padding & Backfilling of the trench after lowering the pipeline. However,Raking up of built-up surface / Hard surface of any type including metal road/ surface , concrete road/ surface, bituminous road/ surface, asphalt road/ surface etc. which is breakable in pieces shall be carried out either by manually or using pneumatic machine and tiled surface, paver block, brick lined etc.which is breakable/removable in pieces manually shall be carried out without using pneumatic machine and proper placement of all tiles/ slabs/ paver block/ curb stones etc. removed during excavation shall be paid as separate items mentioned else where in the SOR.

Carrying out repairs of pipe defects/ replacement in case of irreparable defects and repairs of defects of pipe coating not attributable to Owner including defects/ damages occurring during transportation / handling.

Stringing of line pipes along pipeline trench / ROU provided on sand/soft soil bags including all supplies, manpower & machinary etc.

Checking, cleaning, aligning, bending, cutting and bevelling (as required) of pipes for welding and field adjustments including pipe fittings, welding, carrying out non-destructive testing of welds as required including 100% radiography by X-ray either by internal source or external source based on site conditions/front availability and in this regard decision of EIC shall be final and binding to the contractor (In case placement/installation of X-ray equipment is not feasible, in that case Gamma ray may be permitted as per decision of Engineer In-Charge(EIC) based on site conditions) and providing all requisite equipment, labour, supervision, materials, films, consumables, all facilities and personnel to process, develop, examine and interpret radiographs and other tests as required, carrying out repairs of weld joints found defective by Engineer-in-Charge, carrying out re-radiography and other tests as required on repaired joints.