IOAGPL/PE/OPEN/2026-27/13

MDPE SECTION

MDPE pipeline laying

Route survey of allotted areas and Preparation /Submission of detailed route plan for approval by EIC in AutoCAD format. Receiving, handling, loading, transportation and unloading of owner supplied MDPE pipes & fittings and other free issue items from IOAGPL designated stock yards to Contractor's own stock-yards/ work-sites. Proper storing, stacking, identification, providing security and insurance cover for the materials. Proper storing, stacking, identification, providing security and insurance cover for the materials. Making trial pits to determine the underground utilities/ services etc., restoration of the abandoned excavation/ trial pits (excavated to depth of 1.00 m or more as per satisfaction to EIC) to original condition, barricading the work area as per the procedures & drawings provided in the tender and as per the directions of EIC / Site-in-charge; uncoiling / stringing of pipes, jointing of the pipe ends/ fittings / Transition fittings/ valves by qualified personnel, using approved electro fusion techniques as per specification.. Entire work shall be executed as per scope of work, specification, PNGRB T4S and/or any other specification as per requirement of statutory authorities.

Route survey of allotted areas and Preparation /Submission of detailed route plan for approval by EIC in AutoCAD format. Receiving, handling, loading, transportation and unloading of owner supplied MDPE pipes & fittings and other free issue items from IOAGPL designated stock yards to Contractor's own stock-yards/ work-sites. Proper storing, stacking, identification, providing security and insurance cover for the materials. Proper storing, stacking, identification, providing security and insurance cover for the materials. Making trial pits to determine the underground utilities/ services etc., restoration of the abandoned excavation/ trial pits (excavated to depth of 1.00 m or more as per satisfaction to EIC) to original condition, barricading the work area as per the procedures & drawings provided in the tender and as per the directions of EIC / Site-in-charge; uncoiling / stringing of pipes, jointing of the pipe ends/ fittings / Transition fittings/ valves by qualified personnel, using approved electro fusion techniques as per specification.. Entire work shall be executed as per scope of work, specification, PNGRB T4S and/or any other specification as per requirement of statutory authorities.

Laying in hard rock strata defined as follows: Hard rock/ large boulders encountered during excavation exceeding hard rock thickness of 300 MM and continuous length of minimum 1000 MM and removable only by chisel/ pneumatic chisel/ jack hammer as per the specification and direction of EIC. Additional depth to be maintained to accommodate sand/ soft soil bedding & padding. Decision of Hard rock breaking & excavation shall be taken if other options are not available. If the rock is encountered at a depth where minimum cover as per PNGRB can be maintained with approved less cover protection, rock excavation to be avoided. In above item, backfilling of pipeline trench by borrowed select soil duly approved by Owner/ EIC in included in this item. Supply of specified and approved quality fine sand free from any impurities like clay, mica and soft flaky pieces as per instruction of EIC, borrowed foreign soft graded soil/ sand in place of available excavated material and/ or other suitable soil as per applicable standards/ specifications, including backfilling of excavated trench for specified length after laying and padding of pipeline, including transportation of such special backfill material over all distances. No separate payment for rock excavation/ breaking/ sand bedding/ padding etc shall be made. Contractor to take due care while quoting for pipeline laying in rocky terrain.

Installation of Gl sleeves, 2.5" NB x 300 mm length pipe sleeve/ half round concrete sleeves for domestic connections, 3" NB x 300 mm length Gl sleeve for commercial and industrial installations, excavation, breaking through any obstructions, insertion of pipe, sealing the annulus, fixing of the sleeves/RCC Half Round Guard with concrete mix, preparation of pedestal & restoration of excavated pits within the size of pedestal & the same pit with the laying of 20/32 mm dia MDPE pipe as defined in scope of work, technical specification and instruction of ElC/ SIC.

Carrying out GIS Data Collection & Entry at every 12 meters, Pipe fittings / Cut Points /Joints/Crossings/Valves/SR etc. (Latitude / Longitude) With attributes as per satisfaction of Owner and / Or as directed by Engineer I/C. Submission of Data in the GIs format of. Shp,. Kml. Accuracy of the collection of assets / Cut points/ Joints to be in accuracy to be maintained 30cm -60cm. Using Hardware Components like - GNSS Receiver’s - Arrow 100 GNSS Receiver / Spectra Precision Sp20 Receiver / Trimble R2 / Trimble R1 Receiver having Capability to get submeter accuracy 30cm -50cm or better with Indian SBAS-GAGAN Satellite or RTK in Real-time along with Field replaceable Battery in the device. Software Components - Data collection via Mobile application: To digitize the collection of data during construction and provide real-time data in the field.

Flushing, cleaning, pneumatic testing, purging with nitrogen and commissioning as per scope of work, specification and approved procedures providing all tools and tackles, nitrogen, instruments, manpower and other related accessories and as per instructions of the EIC/ SIC. Maintaining the completed pipelines/ installation for any defect, failures during defect liability period.

Handing over the completed works to owner for their operation/ use, returning of all surplus material to owner stores, reconciliation of free issue material area wise and obtaining no objection certificate.

On completion of gas charging of pipelines, preparation and submission of as-built drawings, crossings details, termination, utility graphs and deviation statements. Submission of all documents required for contract closure in numbers as mentioned in contract.