Annual Rate Contract for construction and commissioning of Single Phase tube Wells By various Rig Machine under Sub Division Chohtan, Dhanau and Fagaliya

PHED BSR-2023-24 Exclusive of GST

Construction of tube well from ground level & up to 100 mtr depth to accommodate housing and assembly pipe of following sizes in all type of alluvium strata unconsolidated formation such as pebbles, boulders etc. by percussion/rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications, with gravel as per IS:4097-1967 and it's packing as per IS: 2800 (Part I & II) 1979 as amended up to date (the work includes the cost of gravel & it's primary packing and packing during development, lowering of housing & strainer assembly pipes with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles and development work, but excluding the cost of housing and strainer pipe assembly). The work would be completed after obtaining sand free water. Nominal bore 150 mm dia. Rates are exclusive of GST.

Add 15% extra on above item (Item no 2.1.1 to 2.1.3) for drilling depth beyond 100 mtr and upto 200 mtr, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr. Nominal bore 150 mm dia.

Add 40% extra on above item (Item No 2.2.1 to 2.2.2) for drilling depth beyond 200 mtr, rate shall be applicable for only extra depth beyond 200 mtr . Nominal bore 150 mm dia..

Construction of tube well after completion of drilling by rotary /percussion method & up to 100 mtr. depth in all type of rocks by DTH system as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work shall be deemed completed only after obtaining sand free water. The bore well should have a throughout nominal size bore beyond casing pipe. Nominal bore 150 mm dia. Rates are exclusive of GST.

Add 15% extra on above item (Item No 2.3.1 to 2.3.3) for drilling depth beyond 100 mtr, rate shall be applicable for only extra depth beyond 100 mtr . Nominal bore 150 mm dia.

Add 30% extra on above item (Item No 2.3.1 to 2.3.3) for drilling depth beyond 100 mtr, rate shall be applicable for only extra depth beyond 100 mtr . Nominal bore 150 mm dia.

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a through out bore as per nominal dia of casing pipe.Nominal bore 150 mm dia. Rates are exclusive of GST.

Add 15% extra on above item (Item No 2.4.1 to 2.4.2) for drilling depth beyond 100 mtr and up to 200 mtr from ground level, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.Nominal bore 150 mm dia.

Add 30% extra on above item (Item No 2.4.1 to 2.4.2) for drilling depth beyond 200 mtr and from ground level, rate shall be applicable for only extra depth beyond 200 mtr .Nominal bore 150 mm dia.