DISILTING / MAINT OF RADIAL WELL, SUMP WELL AND OTHER CONNECTED SERVICES UNDER GE (WEST) MATHURA

Taking out and lifting old cast iron sluice valve from a radial well of size upto 300 mm dia complete all as specified and directed. Note : (a) Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account. . (b) All the T&P required including oxygen cylinder, under water gas gutter and water pump for bailing out water and restriction of water supply during work will be arranged by contractor and rates for the same included in the quoted rates.

Supply & fixing and testing Cast iron Rising spindle sluice valve with iron wheel flanged ends including nut and bolts as per IS 14846 Body Cover-CI IS:210, Gr FG260 Door CI IS:210, Gr. FG260 Body ring-Bronze IS:318 Gr. LTB2 Door Face Natural Rubber Hinge Pin-SS ASTM A276 Type 410 Fastners-CS IS:1367, CL-4.6/4.0 Gasket Natural Rubber Flange Drilling - IS:1538 PN 1.6 of size 300 mm complete all as specified and directed by Engineer-in-charge. Note : Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account.

M&L MS work in support over bridge base guarder by fabricated structural steel chequered plate 6mm thick conforming to IS - 3502 and mild steel Fe 410-W(Gde-E- 250) sections & fabrication for support for roller bearing made up of upto 10mm thick MS plate as per site requirement including welding, bending cold or hot drilling holes including nut, bolts any shape and size as directed or indicated including two coats of enameled paint after one coat of zinc chromate primer all as specified and directed.

Labour and T&P for desilting of Radial well manually and removing silt/sand from not more than 50 mtr depth from the bottom slab and removed/disposed off to a distance of exc 250mtr but n. exc 500mtr , turning ON/OFF water without damage of existing plant and machinery as per time requirement and as directed by Engineer-in-Charge. Note: (i) Contractor will arrange Desilting pump and all T&P as required on site to complete the work. at his own cost. (i) Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account.

M&L for cleaning the Radial pipe of 300 mm dia max length upto 50 metre diagonally by Running Diesel Engine driven Air compressor of not less than 20 PSI Pressure Jet for compressed air development and cleaning the existing radial pipe without damaging the same pipe, size of air line should be minimum 65mm complete all as specified and directed. Note: (i) Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account. . (ii) Disilting meterial obtain under cleaning of radial pipes will be measured and paid under BOQ item No. 04.00 above. (iii) Proper register/logsheet shall be maintain for running of compresor duly signed by contractor and Eng-in-charge every day.

M&L for bailing out muddy water from radial well by running sludge / disilting pump of 100 HP capacity required during of radial well complete all as specified. Note : (i) Extra water during cleaning of radial well will be pumped by same disilting / sludge pump. (ii) Contractor will make arrangement to install pump and make connection for pipeline and electric cable for the running of pump electrically will be provided on chageable basis. (iii) Only 04 Hours will be provided to work in a day time. (iv) Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account. (v) Proper register/logsheet shall be maintain for running of sludge /disilting pump duly signed by contractor and Eng-in-charge every day.

M&L for dismantling of MS channel, MS round / square bars, MS framed structure with or without plates completely alongwith nuts and bolts from radial well by cutting with the help of gas cutter without disturbing the pipes and concrete structure complete all as specified.

M&L framed work MS channels with or without plates, square bars/round bar 10mm, grills, gratings etc with ends of bars shouldered and / or riveted into spikes, framed guard bars, barred iron doors, ladders, framed balusters walk ways railing frame work of ceiling etc and similar work confirming to Fe-290 Gde E-165 complete all as specified and directed.

S&F in replacement GI pipe 40 mm dia in heavy class over a sluice valve spindle of size 300 mm to work like a spindle for opening and closing of a sluice valve from top portion of radial well including connecting items required for fixing GI pipe with sluice valve spindle complete all as specified and directed. Note : (i) Depth of Radial well is approx 40 mtr. Contractor shall take all safety precausion as required during execution of work and cost of same shall be deemed included in his quoted rate. Nothing extra shall be payble on this account.

Supply only water disingectant chemical having minimum 64 to 72% effective chlorine, moisture less than 10% complete all as spcified and directed.