NIT No. 24 Item No. 4 (2023-24)

Hiring crane operator for operation of gantry crane for taking out and placement of stop log gates in position of different grooves of Under gate no9 and11 as per requirement with the help of divers to carry out various works under deep water on stop log gate at Yamuna barrage. The work includes cleaning the surface, removing the silt in upstream side of Under gate no9 and 11 of the bend grooves of both the ends where stop log gate is to be rest under deep water, which includes lowering/lifting of log gates by making proper arrangement of lifting boom, changing of hook of hunger of gantry crane under deep water with the help of other equipment that are required at the site and when the same is rest under the bend of the grooves the sealing/making leak proof of stop log gates is to be done under deep water with the help of the Under gate no 9 and11 divers with crane operating staff so that work of painting should be carried out in the under sluice barrage gates. The stop log etc should be removed after completion . The divers team should be equipped with diving equipment such as Diving air control panel, Diving suit, Compressor, Oxygen cylinder etc and other under water equipment required at site i/c Rope and Gunny Bag as per direction of Expert Gradute Engineer(exper in under water) encharge.

Dismantling of side and bottom rubber seals of Under sluice gate including cost of arrangement of holding gate at different levels out of way to dismantle old rubber seals including all cost of material, labour and T&P required for proper completion of the work. Cleaning , buffing seal base , replacing new seals in size with aligning, levelling &adjusting properly by providing proper clamping plates , nuts bolts , washer ,piercing holes of proper size in rubber seals , testing , jhoola arrangement ,including cost of material , labour and T&P required for proper completion of work .

Providing side and bottom rubber seal as per sample.

Providing High tensile MS nut bolt of different size of 16X75 As per sample.

Providing High tensile MS nut bolt of different size of 10X25. As per sample.

Providing High tensile MS nut bolt of different size of 18X75 As per sample.

Complete overhauling af all the moving and strategic part of the shaft and pinion of the gear box attested to it with the help of grease gun nipple labour as per required at site.

Manufacturing/supply and fixing of high capacity of steel wire rope both end socket for Balance box to shutter, at Wazirabad Barrage Delhi, including all cost of Material, Labor and T&P etc of Under Sluice Gate No 9 and 11 including socket. Socket should be Made by following minimum required material. 65%- led 5% zinc 12-20% tin 5-10% copper With load bearing capacity minimum12 tonnes .

Cleaning of exposed steel structure surface back and front plate of Under gate no9 and11 sticking material including loose and foreign material by sand blasting with coarse sand followed by and including cleaning with oil free air blast as per direction of Engineer in charge.

Priming coats with over the prepared surfaces one,coat of Inorganic zinc silicate (Preferably airless spray) should be applied giving a dry film thickness of 70 + 5 microns. Alternatively two coats of zinc rich primer (containing not less than 85% zinc on dry film) should be applied to give a total dry film thickness of 70 f 5 microns. For under sluice gate no -9 and 11 As per Painting of Barrage gates IS CODE IS 14177

Finishing coat should consist of two coats of solvent less coaltar epoxy paint. These should be applied at an interval of 24 hours. Each coat should give a minimum dry film thickness of 150 + 5 microns. The total dry film thickness of all the coats including primer coating should not be less than350 microns For under sluice gate no -9 and 11 As per Painting of Barrage gates IS CODE IS 14177.

Testing and commissioning the Under gate no9 and 11

Raghunath Rubber Industries