ANNUAL RATE CONTRACT FOR MDPE PIPE NETWORK LAYING LMC INSTALLATION AND ASSOCIATED WORKS FOR BURDWAN CITY GAS DISTRIBUTION PROJECT

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.

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.

In case more than 1 MDPE pipelines are laid in a common trench, SOR rate of higher dia plus 1/3rd SOR rate of lower dia will be paid.

MDPE pipeline laying in normal soil with all type of surface by open trench methodology