| 1 | Provide all material labour, T&P etc and construction of one over R.C.C. head Tank of 200 KL. capacity at 20 M staging based conctractor,s own design and drawing (bearing capacity of soil to be taken as 8 tones/ sqm at 2m depth ),complete with 1.0 M wide R.C.C. stair case from ground level to top standing railing and steel ladder from balconyto topof dome, 1 meter high G.I. railing over staircase, balcony and alround top dome made of three row,s of 20 mm dia G.I. pipe medium class, supported on R.C.C. posts 50x50x6 mm M.S. angle posts placed at suitable internal (1.25m c/c) as per direction of E/I Making & fixing of M.S. ladder from top dome to inside of tank, and from balcony to top dome 60 cm clear width, sides 50x50x6 angle iron, 20 mm dia M.S. bar at spacing of 25 cm centre to centre supply and fixing 600x600 mm M.S. manholescovers with 50x50x6 angle iron, frame, hinged with locking arrangerment as approved by E/I and fixed at the top of dome. Further to supply of all materials fixed aluminum lightening conductor with earthing arrangement as per specification laid down govt. electricity department as per latest I.S. 3043specification Further to provide mosquito proof ventilator of approved quality and fixing at the crown of top dome 50 x 50 x 6mm angle iron fitted with flanged jalias per direction of E/I further to provide water level indicator with all material and fix them desired place further to Erect and hoist all C.I. D/F pipe as perIS:1536 inlet pipe 2no.x 200 mm, outlet pipe 400 mm over flow pipe 300 mm dia and washout pipe 100 m dia with clamp M.S. 50 mm x5mm@ 1.5 m c/c, 16 mm dia bolt nuts of arrangement with CID/F pipe of dismension of given in the general specification providing all jointing materials such as rubber, packing white lead nut, bolt and fix them after embedding in the bottom dome of tank from the desired depth below G.L including fixing of ISI mark sluice valve duck foot bend etc.inlet outlet, wash out arrangement with all fitting or to be painting with black japan further to provideall materials for supply of M.S. gate as per drawing with locking arrangementand painting with approved weather proof paint further to proved all mat. and T/P paint complete structure with three coat of apex or similar quality exterior paint of appd. make (Berger, asian, nerolac) Further for supplying and construction sluice valve chamber as per drawing The rate should be also include the testing ofbearing capacity of soil and water tightness of tank. The bearing capacity of soil is tentatively taken 8 ton/ sqm and 2 m. depth and designfor seismic and wind load as per latest guide line latest revised specification if any IS codes/NBO. All complete UP Jal Nigam specification. Quote the rates for the following items.For decrease in bearing capacity of soil per 0.50 T/sqm in case the design is submitted on raft foundation Beyond 8.0 T/sqm.For increase in bearing capacity of soil per 0.50 T/sqm in case the design is submitted ofn raft foundation Beyond 8 T/sqm. For increase in depth of foundation per 0.50 mt beyond 2.00m depth as per soil investigation report. Excavation in foundation pile/raft laying of lean concrete, costing of foundation and columne up to GL Completion of miscelleneous items such as stair case, fixing of ventilators, water lavel indicator, lightening conductor, supply in fiting of inlet, outlet, over flow and wash out pipes with required specials, supply and fiting of SV in outlet, wash out pipe and Construction of chamber, laying of floor, Apron and making good the ground. |
