NIT NO. 20 (2021-2022) EE(SDW)VIII / Item No.2

Arrangement of all safety equipments for the protection of staff to work at height and to make the working area free from all toxic gases and free from accident during working at site as per NHRC guidelines.

Removing / Stacking of the floating material from the Screening Chamber (appox. 14 ft. deep chamber) using heavy labour with oxygen mask diving suit ladder, hydraulic Mobile Crane and all safety equipment (One by One) .

Dismantling and removing the worn out and damaged M.S. Structure and elements for the screen cutting and removing the supporting M.S. channels plates and Angles, from outside the Screening Chamber with the help of Gas-Cutter and heavy labour thereafter Cutting the M.S. Structure and Screen under hazardous and confine space with the gas cutting set, making arrangement for exhaust of generated toxic gases and deploying ventilation means. Taking out the cut-screen from 20 feet aprrox deep Screening chamber deploying heavy labour, hydraulic mobile crane and lowering lifting tools and tackles Stacking the material inside the premises .

Fabrication and fixing of MS platform for collecting the floating materialremoved from the sewage channel by bar screen. The size of platform is 1.5 mtr X 1 mtr. made out of frame by angle 100X100X6 mm Fixing with RCC foundation and thickness.Fixing with RCC foundation and tightening by MS stud grouted in the RCC foundation .

Under sewage water cutting /Grinding/Drilling /welding in wall including chipping of solid concrete deposited in joint of chamber. For fixing of MSU Channel deep under the sewer water from top to bottom on both the side and on the downstream of chamber the work include underwater drilling with underwater numetic drill machine and thereafter fixing of anchor bolt on the MSU Channel ,underwater grinding and cutting of MSU Channel wherever required, underwater grinding etc and other work required for fixing of MSU channel deep under the toxicated water. Work is to done under sewage water with the help of underwater divers

Providing/fixing fabricated column height 2.5 mtr. of size 200 X 100 (I- Section Beam)

Horizontal Beam for capacity 2 ton with length of 2.5 mtr dully fixed by M.S. plate of size 375 X 300 X 10mm on both side size 200 X 100. (I-Section Beam)

Making of RCC civil foundation with grouting of MS Stud for fixing of vertical I-suction beam also includes the cost of civil material with labour charges.

Providing of E.O.T. Crane of 2 ton capacity with 3 phase electric motor of 2 HP , flanged modulate TEFC type with its Chain . This crane will be work for lifting of bar screen up and down. Make: Indef/ Reva/ W.H. Brady/DJB approved makes.

Fixing of E.O.T. Crane on the fixed horizontal beam by clamping with nut bolt etc. as per site requirement

Fabrication and fixing of SS bar screen (Jali) of size 5 ft. long and 6 ft. width by fabricated of outer frame by SS Angle of size 75 X 75 X 6 mm and inner portion fabricated by SS. Flat iron of size 50 X 6 mm duly welded one by one at 25 mm gap in each flat and fixing in sewage channel by making of clamping system on upper side of bar screen for fixing of chain as per site requirement.

Fabrication and providing of MS Stud of size 300 X 20 mm for grouting in civil foundation fabricated by M.S.Rod includes the charges of cutting,grinding, machining and threading.

Providing of MS Nut bolts with washer of various size

Providing of fasteners with washer of size 150 X 16 mm made out of EN –8 material.

Fabrication and Fixing of railing for platform for safety purpose of staff.

Making electric connection fixing of panel box by man supply arrangement with suitable MCB box with cover & making safety arrangement from rain as per site requirement.

Painting and primer charges of newly making complete system by one coat of primer & minimum two coat of enamel paint of required shade & colour.

Hiring charges for long boom Hydra with operator and Fuel.

Hiring charges of undersewer air lift machine with 4inch delivery pipe for sucking of sludge with the suction line from the sump where the BarScreen Should be rest.

Hiring charges of air compressor BT-6 (running pressure 4 KG) set for operation of pneumatic air lift machine.

Testing & commissioning of complete system.

MK ENGG.CO.