AS PER BOQ

Amount

Construction of Deep Drilling and Development of 300 mm dia production Tube well (02 Nos 150 mtr each) by using percussion method at different locations of (i) WSS Chak Dina Dhatriyal (ii) WSS Chak Dali (Old) in District Jammu under JJM.

Setting up of drilling site by way of shifting of requisite machinery and allied material after making proper approaches as per requirement at site (for the locations of each Tube well of 02 nos.Tubewells mentioned above.)

Boring/drilling of gravel packed bore hole starting with 610 mm dia. for accommodating 300 mm dia casing/strainer pipe and completing with 410 mm dia. in order to construct 300 mm dia tube well by Percussion method including collecting samples from different strata, preparing and submitting strata chart/bore log, including hire and running charges of all equipment tools plants and machineries required for the job, all complete as per direction of Engineer-in-charge. i) From 0 to 50 mtr BGL

ii) From 51 mtr to 100 mtr BGL (50 mtr each for 02 Nos tubewells mentioned above)

iii) From 101 mtr to 150 mtr BGL (50 mtr each for 02 Nos tubewells mentioned above)

Supplying, welding/assembling, lowering and fixing in vertical position in bore hole ERW (Electric Resistance Welded) 300 mm dia X 8.0mm thickness liner assembly (BLIND) FE 410 beveled ended M.S. casing pipe, conforming to IS: 4270 (for tube wells) of reputed & approved make, including painted with inside & outside surface with two coats of anti-corrosive paint of approved brand including handling, loading, unloading & transportation of M.S. Casing pipe BLIND up to location of tube well, as per direction of Engineer-in-charge. The cost also includes 3rd party inspection of M.S. casing Pipe from Govt. approved/designated agency.

Supplying, welding, lowering and fixing in vertical position in bore hole ERW (Electric Resistance Welded) 300 mm dia X 8.01mm thickness liner assembly (SLOTTED) FE 410 bevelled ended M.S. casing pipe, conforming to IS: 4270 (for tube wells) of reputed & approved make, including painted with inside & outside surface with two coats of anti corrosive paint of approved brand including handling, loading, unloading & transportation of M.S. Casing pipe SLOTTED (30 Mtr. for each Tube well) for 02 nos.Tubewells mentioned above , as per direction of Engineer-in-charge. The cost also includes 3rd party inspection of M.S. casing Pipe from Govt. approved/designated agency. (30 mtr for each tubewells mentioned above)

Gravel packing in tube well construction in accordance with IS: 4097 of 1967 with latest amendments, including providing gravel fine/medium /coarse in required grading and sizes as per actual requirement, shrouding after lowering of liner assembly and during development of tube well all complete as per direction of Engineer-in-charge. (60 Cum each for 02 nos.Tubewells mentioned above )

Development and stabilization of tube well in accordance with IS: 2800 (part 1) and IS: 11189 to establish maximum rate of usable water yield without sand content (beyond permissible limit) with required capacity air compressor, running the compressor for required time till Well is fully developed measuring yield of well by “V” notch method or any other approved method, measuring static level & draw down etc. by step draw down method collecting water samples and getting tested in approved laboratory, including disinfection of tube well, all complete including required hire and labour charges of air compressor tools and accessories etc. Fabrication providing/fitting of steel supporting structure for clamping of tube well housing using two number parallel ISMB-250 of 5 mtr length each and M.S. angle 40 X 40 X 6 mm and M.S. plate 10 mm thick with 2 Nos. cement concrete blocks of size 1.00 mtr X 1.00 mtr 1 No. each of both ends. The job includes well capping after yield test in presence of the representative of the department. all, as per direction of Engineer-in-charge. (each for 02 nos.Tubewells mentioned above.)

SAI CONSTRUCTIONS