Erection, commissioning and testing including dismantling, assembly, painting for repair maintenance of tunnel intake service and emergency gate at Mahulpatna, UIHEP.

Amount

Deployment of tyre mounted crane of 75 T capacity including mobilisation, demobilisation & hire charges for dismantling, removal, shifting, assembling, painting, erection, commissioning & testing of intake service & emergency gates with their hoisting arrangements.

Repair of guide, sill beam, top seal etc. of 2nd. Stage embedded parts of intake service & emergency gates by conducting underwater (Pre & post) videography including supply of CDs.

Checking conditions of gate passage(Intake service & emergency gates) by dummy gate.

Provision for underwater divers for checking of intake service & emergency gates movement.

Dismantling, shifting after removal of intake service & emergency gates including cost of all charges for labour ,consumables, machnery, T&P etc.

Assembly,erection,commissioning & testing of intake service & emergency gates inclusive cost of all charges for ,consumables, machinery, T&P etc.

Prior to new painting, old painted surface should be cleaned by sand blasting.The average surface roughness after sand blasting should not exceed 40 microns. Blast cleaning should be performed with sand/grit/shot as per requirements given in IS:1477(Part-1):1971. After blast cleaning, the surface should be cleaned from loose dust and debris preferably by air blast with help of blower.Over the prepared surfaces two coats of zinc rich primer should be applied to give a total dry film thickness of 70 ± 5 microns followed by two coats of solvent less coal tar epoxy paint 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 less than 350 microns as per IS: 14177:1994 & direction of Engineer-in-Charge.

Fabrication & dismantling of bed & support during dismantling and erection of intake service & emergency gates.

Dismantling, shifting after removal of rope drum hoisting arrangements of intake service & emergency gates including cost of all charges for labour, consumables, machnery, T&P etc.

Assembly,erection,commissioning & testing of rope drum hoisting arrangements of intake service & emergency gates including cost of all charges for labour ,consumables, machnery, T&P etc.

Prior to new painting, old painted surface should be cleaned by sand blasting. The average surface roughness after sand blasting should not exceed 40 microns. Blast cleaning should be performed with sand/grit/shot as per requirements given in IS:1477(Part-1):1971. After blast cleaning, the surface should be cleaned from loose dust and debris preferably by air blast with help of blower.Over the prepared surface two coats of zinc phosphate primer giving minimum dry film thickness of 40 ± 5 microns per coat followed by one coat of micaceous iron oxide paints giving minimum dry film thickness of 65 ± 5 microns and two coats synthetic enamel / Aluminium paints conforming to IS: 2932 giving minimum dry film thickness of 25 ± 5 microns per coat are to be applied with an interval of 24 hours between each coat of dry film thickness of all coats including primer coats not less than 175 microns as per IS : 14177:1994 & direction of Engineer-in-Charge.

Overhauling of position indicator assembly & handdrive assembly of rope drum hoisting arrangements of intake service & emergency gates by replacement of damaged parts inclusive cost of materials,labours ,consumables, T& P etc.

ANANTA CONSTRUCTIONS

KAMAKSHI ENGINEERING WORKS