Surging And Development Of Big Dia Tubewell By Carrying Out Surging And Back Blowing Of Existing Tube Well Including Installation Of Suitable Insurtion Pipes Of Adiquate Diameter Upto Required Depth Alongwith Suitable Airline Pipes For Injecting Compresse, Birbhum-West Bengal
TDR : 47278778
Tender Notice
Corrigendum Details
BOQ
Expired
Birbhum
West Bengal
Corrigendum : Surging And Development Of Big Dia Tubewell By Carrying Out Surging And Back Blowing Of Existing Tube Well Including Installation Of Suitable Insurtion Pipes Of Adiquate Diameter Upto Required Depth Alongwith Suitable Airline Pipes For Injecting Compresse
Name of Work:Surging and development of Big dia tubewell by Carrying out surging and back blowing of existing tube well including installation of suitable insurtion pipes of adiquate diameter upto required depth alongwith suitable airline pipes for injecting compressed air under perssure at the appropriates depth inside the tube well under Nalhati Sun- Division under Birbhum Division, PHE Dte. (Sl. No.10)
Sl. No.
Item Description
1
Carrying out surging and back blowing of existing tube well including installation of suitable education pipes of adequate diameter up to required depth along with suitable airline pipes for injecting compressed air under pressure at the appropriates depth inside the tube well. The work includes the cost of required manpower for installation of the necessary education and airline pipes, operation of compressure of 200-250 cfm capacity including consumables hire and maintenance charges hire charges of equipment including tools and special top fitting and valve for pressureising the aquifer-all inclusive.Hire charges of air compressureBASIC RATES: 0.1 HIRE CHARGES OF PLANTS & MACHINERY Code no 0040 of DSR 2021 page-4 The hire charges of plant machinery on per day basis are for single shift of eight working.hours.per day 12 hrs.x10 days=120 hr Total as shift= 120hr/8=15 days
2
1.2 Surging MechanicBasic rateRs.853.00 add @ 5% over head charges + 10% contractor profit Rs. 985.00, 1 no\"s mechanic per day, single shift of eight working hours. per day 12 hrs. x 10days=120 hr Total as shift=120hr/8=15 daysBASIC RATES: 0.2 LABOUR code no 0160 as Technician of DSR-2021 page-8
3
1.1 Rig crew and Helper (Technician)Basic rate Rs. 645.00 add @ 5% over head charges + 10% contractor profit Rs. 745.00 4 no\"s rig crew helper per day, single shift of eight working hours per day 12 hrs.x 10 days=120 hr Total as shift=120hr/8=15 days x 4 no\"s=60 daysBASIC RATES: 0.2 LABOUR code no 0161 As helper technician of DSR-2021 page-8
4
Mobilization of equipment and manpower at TW sites including hire charges of trucks breakdown van/crane, tractor as required, loading and unloading of all equipment and shifting of unit to next TW site including all labour charges.Loading unloading charges by local workers on truck by tripod chain pulley etc. 2 x 5 Mazdoor maleBasic rate Rs. 465 as per latest order no. 1090 F- (P2) dt 01.03.24 add @5% Overhead charge, add @10% contractor profit=Rs.537.005 no\"s of labour per day, 5 no\"sx2 days=10 days
5
Hire and running charges of crane 20 tonne capacity for towing from muddy work site (non approachable by truck) Hire and running charges of crane 20 tonne capacity BASIC RATES: 0.1HIRE CHARGES OF PLANTS & MACHINERY code no-0028 of DSR-2021 page-4 The hire charges of plant machinery on per day basis are for single shift of eight working hours,
6
Truck hire charges to carry the air compressor one site to other 9 tonneBASIC RATES: 0.1 HIRE CHARGES OF PLANTS & MACHINERY Code no 0084 of DSR2021 page-6
7
Chemical treatment of the tube wellHexa Metaphosphate
Cement sealing by Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement. If any, in ground floor as per relevant IS codes.
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