Renovation of Deep Bore well in the NRRI Campus at NRRI, Cuttack-6

Amount

Renovation of deep borewell in the Campus” at ICAR-NRRI, Cuttack-6

Labour for drilling and perfectly verticalbore hole or specified dia dor a specified depth below ground level in alluvival soil strata by Mug Reportary Rig drilling as required to suit the site condition as per the direction of engineer-in-charge including supply of Rig with its accessories tools and plants and all cosumables etc. for a finished bore suitable for lowering of 200mm dia M/s PVC pipes for housing fitted with sockets and with or without well screen as per the necessity for soft medium hard and boulder formation (M/S PVC casing pipes if required is to be provided by the contractor to prevent collapse of over burden portion) including, lowering and with drawing of casing of pipe after drilling 200mm to 400 mm dia in over burden portion (From 0 to 100 Mtr.)

Labour for lowering the following size of MS/PVC casing pipes with or without slotted pipes as per the necessity from ground level up to 300 mtr. Depth and fitting and fixing up in perfectly vetical position including cutting and threading of blank pipe ansd slotted pipe and laying and fixing of all jointing materials extra sockets and T&P etc. complete keeping the top of casing pipe threaded including plugging the tube well to prevent entry of foreign materials. a) 200 mm dia PVC casing pipe

Cleaning and developing the tube well by compressor supplies by the contractor continuously workered till closer and adequate dischare is obtained from the tubewell including supply and use of necessary equipment and labour as per the direction of Engineering- in-charge. a) Tube of 200 mm dia

Supplying of all materials, labour and T&P and providing sanitary sealings by cement concrete grouting of annular space around the MS/PVC casing pipe up to 5.00 mtr. Below ground level (including cost of cement) as per the direction of Engineering-in-charge. a) MS/PVC casing pipe up to 5.00 mtrs.

Applying all materials, labour and making gravel packing with specific size (P-6) of gravel around 200mm (8") dia pipe and strainer complete as per the direction of Engineeing-in-charge. 22/28x(0.4^2-0.2^2)x30 mtr.

Supplying all materials, labour & T&P for consturction of embedment around 200mm production will including earth work in all kind of soil, sand filing CC(1:4:8) brick work in CM (1:6) with CC (1:2:4) for covering the embedment of size 1.5x1.5x1.0 as per the direction of Engineering-in-charge

200 mm (80sch) ASTM PVC ND pipe

200mm dia well screen pipe

200mm dia bell plug

MS toping plug

Bishnu Charan Samantaray