Replacing of damaged pumping line

Amount

Replacing of damaged pumping line

Ultrasonic inspection of steel plate 12 mm thick at place of delivery / fabrication, prior to fabrication of plates including all expenses for testing arrangements, labour charges etc complete as per specifications, approved drawings and as directed by departmental officers

Supply , fabrication and delivery of MS pipe having an outer diameter of 62 cm or nearest size at erection site using 12 mm thick steel plates conforming to IS specifications ( IS 2062) including cost of steel, electrodes, welding flux and accessories, carrying out all tests other than those for which seperate items are included, shot / sand blasting and protective coating for inside two coats of Zinc rich primer and two coats of coal tar epoxy paint for outside one coat of zinc rich primer followed by cement wash having a composition of cement,water and pottassium dichromate in 20:8:1 ratio first coat at workshop, insurance charges, all labour charges, transportation charges etc complete as per specifications, approved drawings and as directed by departmental officers

Fabrication,supply,and erection of MS flange of 1.10 x1.10 m size using 16mm thick steel plate for anchoring the pipe to dam body conforming to IS specifications (IS2062) including cost of steel, electrodes and all accessories ,carrying out all tests other than those for which separate items are included . Painting with two coats of zinc rich primer & 2 coat of coal tar epoxy for outside and one coat of zinc rich primer followed by cement wash, leveling the dam body surface by plastering with non- shrink , high strength cementatious mortar conforming to EN 1504-3 after applying bonding agent ( both of approved make), providing nozzles for grouting on the MS flange and closing by welding after grouting, fixing the flange in the dam body by providing 16 Nos 10mm anchor bolts of approved make fixed by chemical anchoring, lowering the flange from dam top and fixing in position, welding to pipe including cost of all materials , hire charge, labour charge etc. complete.

Ultrasonic testing of weld joints carried out at fabrication site / factory as per specifications including all expenses for testing arrangements and labour charges etc complete as directed by departmental officers

Ultrasonic inspection of field weld as per specifications including all expenses for testing arrangements and labour charges etc complete as directed by departmental officers

Supply and installation of a load bearing hanging/ supported working platform of approx. Size 2.5m x 2.5m using steel work with tubular sections suitably supported from dam top or sides including providing suitable ties, bracings jointed with pressed coupler joints including hire charge of all materials, cutting, welding etc. including dismantling and removing all the material after work at the downstream side.

Supply and installation of a load bearing hanging/ supported working platform of approx. Size 2.5m x 2.5m using steel work with tubular sections suitably supported from dam top or sides including providing suitable ties, bracings jointed with pressed coupler joints including hire charge of all materials, cutting, welding etc. including dismantling and removing all the material after work at the upstream side.

Transporting the drilling machine including all accessories from the Contractor's yard to work site by suitable conveyance including cost of loading & unloading and taking back the same after completeing the work

Erecting drilling machine at the hole sites for drilling holes including drilling holes for fixing foundation bolts and anchoring the drilling machine and dismantling and shifting the machine, after completing the drilling, to the next hole including cost of all materials, labour charges etc complete as per specifications and as directed by the departmental officers at site

Drilling vertical holes of diameter not less than 38mm from dam top with diamond drills ('Nx' bit for grouting at locations pointed out by departmental officers including cost of all materials, labour charges, hire charges etc complete as per specifications and as directed by departmental officers at site.

Preparation for placing concrete including chiesel dressing wherever required at all elevations and cleaning the surface with compressed air and water etc.and depositing the un serviceable materials including all lead and lift etc. complete as per direction of the engineer in charge.

Erection and installation of pipes including conveyance to the haulage position and placing in position inside the existing pipe, assembling, welding followed by second coat of cement wash having a composition of cement,water and pottassium dichromate in 20:8:1 ratio etc complete as per specifications, approved drawings including all labour charges, transportation charge, equipments, final protective coating, insurance charges etc as directed by departmental officers

Drilling holes for providing anchor/dowel bars varying in depth and diameter in rock or concrete and cleaning the holes,grouting with specified cement grout after fixing dowel bars including cost of all materials, labour etc. complete as per specification,drawing and directions of the engineer in charge.

Providing anchor/ dowel bars of varying depth using 20mm dia Tor steel,bend,jumped etc. by drilling using jack hammer and grouting the holes with cement grout using specified size steel rod,including cost and conveyance of steel,labour charges. Etc. complete as per the specifictions and drawings as directed by the departmental officers.

Cement grouting as directed in the vertical/inclined drilled holes (after completing cleaning the holes with air and water loss testing) starting from the bottom of drill hole using packers with Cement grout as per specification under a maximum pressure of 3 to 5 kg/cm2 ( as per specification/ codes/direction of the Engineer in charge) and thickening the grout mix as required (as per specification/appropriate methods) by using non-shrink additive for increasing workability, including cost of all materials, hire charges of machinery, labour, platforms, scaffolding costs on conveyance between holes for any other items not covered in item no. 2) and any other incidental charges, etc. complete as directed by the Engineer-in Charge.

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. up tot floor five level excluding cost of centering, shuttering, finishing and reinforcement 5.2.2: 1:1.5:3( 1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size)

Centering and shuttering including strutting, etc. and removal of form for: 5.9.6: Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth level 5.22.6; Thermo - Mechanically Treated bars of grade Fe-500D or more

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and applying rendorec S2 or approved equivalent epoxy coating of average thickness 2 to 5 mm of approved brand to the mouth of pipe and surrounding area on upstream and downstream sides after cleaning the exposed reinforcement from rust including cost of all materials and labour charges etc. complete as per direction of deptl. officers at site.