WBPHED/EE/MAAD/NIeT _15 of 2026-2027. Sl. No. 03

Construction of drive pit of 10 m length, 2.50 m width and 2.50 m depth from top of existing GL with all necessary excavation trenching, necessary shoring with close plank walling framing, UC/Jham ballah piling, strutting etc., bailing out water from pit and construction of thrust bed and thrust wall with concrete M-20 and as per design with all precautions and safety measures to prevent any soil collapse and safety of railway track/road (this item also includes the cost of dismantling thrust wall after completion of the work and filling upto its original condition as per specification, disposing of excavated extra earth to a lead of 75m. from the pits.)

Placement of 600 mm dia MS pipe below the railway track/road in proper line, alignment and depth as per direction of E.I.C by hydraulic jack pushing method including lowering the pipe segment to the drive pit and jointing the pipe segment with welding (not less than 3 runs) with all necessary excavation from inside the pipe, fixing of intermediate jacking station at an interval of 10 mtr. if necessary and retrieving the driving shield and cleaning of pipe etc. all complete with hiring of necessary materials, machinery and labour including lowering, insertion, placing & jointing of 600 mm dia MS pipe as per direction & satisfaction of EIC. (The rate includes disposing of excavated earth with a lead of 75M from the drive pit)(cost of gas cutting and welding is not included in this item will be paid separately. Cost of intermediate jacking station will be paid separately).

(a) Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.(out side of 600 mm dia casing).

Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary: On steel or other metal surface. With other than hi-gloss of approved quality. Two coats (with any shade except white).

Derusting, brushing, cleaning, smoothening the inner surface of spirally welded M.S. pipes and specials by sand blasting to SA-I Swedish specification and immediately applying protection coating or Drinking Aluminum primer 2 coats. D.F.T. (40-50) microns each coat and drinkon black 2 coats (25-30) microns each coat of Shalimar paints Ltd. or equivalent by spray painting inner surface of pipe as per manufacture specification all complete with requisite supply of materials, labours, consumables including stacking of coated pipes according to E.I.C. a) 200 mm dia (ID) MS pipe.

Making field joint to M.S. Pipes and specials of different dia laid in excavated trench by full penetration V-groove butt welding of joints with multiple run as per IS specifications with qualified welders using Electrodes of proper gauge made of Advani Oerlikon, D and HS or ESAB Conforming to IS 814 (Part I). The welding qualification test is to be conducted by the Contractor at his own cost only pieces of pipe will be issued free of cost for weld test, with ultrasonic testing of welding joints.

Gas cutting of different M.S Pipes and Specials to required length grinding and finishing (bevelling suitable for V-Groove butt welding) all complete including cost of hire and fuel charges of grinder, labour charges, consumables transportation as per specification and direction of EIC

Making flange Joints to CI/DI/MS specials and Valves etc. where necessary including supply of nuts and bolts (GKW or UNBARRAKO made), washer and rubber insertion of 3 mm thickness of ISI specification and approved make etc. all complete as per specification, direction and satisfaction of E.I.C. i) 200 mm inner dia MS Pipe

Brick work with 1st class brick work in cement mortar (6:1). a) In foundation and plinth.