Mining, Minerals & Quarrying Tender Results

Construction of Tube Well from ground level and up to 100 mtr. depth to accommodate housing and assembly pipe 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 up to date) and technical specifications for removal of overburden. The work includes the cost of lowering of casing pipe, but excludes the cost of casing pipe. Nominal bore 250 mm dia.

Quarrying, Carrying, & Supplying stone Boulders / Shingles etc. from quarry site selected by the Engineer-in-charge to the site of work including cost of materials,loading unloading and carriage including all incidental charges like royalty complete as per direction of the engineer-in -charge (Quarry bed belongs to BL & LRO Deptt. Govt. of W.B) {N.B.The construction wing is to add royalty and other related fees at the presently prescribed rates for forest and non-forest area as stated below to arive at the total rate at quarry site till such rates are modified by the Forest Department and Department of Industry, Commerce & Enterprises, Government of West Bengal. (a) For Forest area Royalty including entry fee and TP fee : Rs. 178.30 per Cum (b) For Non-Forest area Royalty : Rs. 106.00 per Cum Royalty( including other charges wherever applicable) certificates in original from competent authority are to be submitted along with the bill, otherwise amount due towards Royalty( including other chargeswherever applicable, but excluding GST) will be deducted from the bills of works . } 20 kg and above

Labour charges for drilling a perfect vertical bore hole of specified depth below ground level in alluvial soil starta by mud rotary Rig drilling as required to suit the site conditions as per the direction of Engineer-in-charge including supply of Rig with its accessories, tools and plants and all consumables etc.for a finished bore of 450mm dia suitable for lowering of 200mm dia ASTM Schedule-80 PVC pipe for housing fittedwith socket with or without well screen as per the necessity for the soft,medium,hard & boulder formation(PVC casing pipes if required by the contractor to prevent collapse of overburden portion) inclunding lower & withdrawing of casing pipe after drilling 200mm to 450mm dia.in overburden portion. Bentonite powder & labour charges towards digging of mudpit, seting pit, fliude chanel, .V notch chanel & refilling the same ofter intallation of TW work. 0 Mtr to 90mtr

Construction of tube well 100 meter & above in all types of rock by DTH System & over burden to accommodate casing pipe of following sizes in all types of soils and overburden including lowering of casing pipes but excluding cost of casing pipe as per IS:2800 (Part – I & II ) 1979 specfications. The work would be completed after obtaining sand free water. The tube-well should have a through out bore as per nomial dia of casing pipe

Construction of tube well 100 meter & above in all types of rock by DTH System & over burden to accommodate casing pipe of following sizes in all types of soils and overburden including lowering of casing pipes but excluding cost of casing pipe as per IS:2800 (Part – I & II ) 1979 specfications. The work would be completed after obtaining sand free water. The tube-well should have a through out bore as per nomial dia of casing pipe