NIT No. 9 Item No. 01(2023-24)

Dismantling of RCC Chamber with help of Pneumatic hammer machine, Heavy labour, Chisel, long boom hydra crane etc by all safety measure etc at site and disposing the material at place within 500mtr as per direction of Engineer.

Arrangement of safety equipment as per NHRC guidelines and special arrangement of the same for underground deep water Works like portable Oxygen cylinders, Body Suits, Safety Belts, Oxygen masks, Body harness, Safety helmets etc.

Taking out of broken RCC malba from 25 ft deep Raw water chamber by Heavy labour in presence of certified professional Divers with oxygen masks, and all safety precautions.

Repairing and remodeling of Underground Raw water channel with required Civil and Mechanical works and making provision to install CI Sluice gate of size 500/600mm approx as per site feasibility and available space deep inside chamber. The work would be carried out in presence of certified deep water divers and certified expert staff for such specialized works.

Plugging and dewatering of Tidal water coming into chamber by installing Dewatering Pumps and Making Roka arrangement with Gunny bags at both ends of the chamber. Complete de silting of inlet chambers with Heavy certified professional labour and taking out all the silt, debris, floating material etc with all safety precautions.

Supply and installation CI Sluice gate of 500/600mm with spindle Extended spindle of length around 25 Ft with required Mechanical works at 25 ft deep inside Raw water chamber using all safety precautions. Make Jash/ IVC

Supply and installing Head stock assembly complete with Thrust Bearing, Heavy Duty Gear Box Mechanism, Hand wheel etc. at top of the chamber with required Civil and Mechanical works.

Making of RCC Chamber of size approx 9 ft x 9 ft of suitable height with provision to Mount Headstock assembly of Sluice gate at the top and Provision of Top Opening with suitable arrangement to go down inside the chamber through stairs.

Arrangement for installing new Head stock unit complete with Thrust Bearing, Heavy Duty Gear Box Mechanism, Hand wheel etc. at top of the chamber with required Civil amd Mechanical work with required civil/Mech works

Painting of entire structure with Primer and Enamel Paint of 3 Coats.

Complete alignment of spindle from CL level to PL level, balancing of Gate & operation of its proper movement manually.

Testing, Commissioning of complete Gate, Headstock unit and operating the same of its smooth operation and proper closure with Zero leakage at full flow.

P.K. Electricals