Maintenance of the water distribution network of P.H. no.1 and P.H. no.2 at Valkini Rehabilitation site for the year 2025 26

Amount

Dismentaling existing RCC half round pipeline including breaking up joints, conveying stacking the servicable material and disposal of unservicable material within a lead of 50 m and lift upto 1.50mts. 300 mm dia HRP

350 mm dia HRP

400 mm dia HRP

Demolishing laterite stone masonry in cement mortar including stacking of serviceable material & disposal of unserviceable material within 50 mts. lead.

Earthwork in excavation by mechnical means ( hydraulic excavator )/manual means over areas (exceeding 30 cms in depth, 1.5m in width as well as 10 sqm on plan) including disposal of excavated earth lead uoto 50m and lift upto 1.5m disposed eatrth to be levelled and neatly dressed including providing barricading, danger lightining guarding as directed in:a) all kinds of soil.

Rubble packing with hard laterite stone under floors including watering raming and consolidating etc. in pipeline trenches and other foundations.

Providing and laying in position cement concrete1:2:4 ( 1 cement:2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 mm nominal size) excluding the cost of centering, shuttering and finishing in:a) All works upto plinth level

Conveying carefully from stack at site,250m from both sides rolling and lowering into trenches, laying ans jointing true to line and level, RCC spun pressure and non pressure pipes of various classes, specials including collar and perfect linking of joint with jack to correct position including cost of jointing material in cement mortar 1:2 necessary hydraulic testing, curing of cement mortar etc complete. FRP Nominal diameter in mm d) 300 mm.

Laterite masonary in neatly dressed stones of size as specified in cement mortar 1:4 (1 cement :4 coarse sand) in foundation and basement.

12mm cement plaster 1:4 (1 cement : 4 fine sand)

Providing and laying in position and jointing true to line and level R.C.C. half round pipes with cement mortor 1:2 ( 1 cement : 2 fined sand ) including clearing if any, curing etc. 300 mm dia HRP

350 mm dia HRP

400 mm dia HRP

Clearing and rectifying the old joints in HRP including jointing the pipes true to line and level with cement mortor 1:2 (1 cement : 2 fine sand)curing etc complete as per the directions of Engineer-in-charge. 300 mm dia RCC Half Round Pipeline

350 mm dia RCC Half Round Pipeline

400 mm dia RCC Half Round Pipeline

Earthwork in excavation in foundation pipeline trenches, drain in saturated soil upto a depth of 0.60mt. Lift upto 1.50mt including shoring, struting and pumping /bailing out water stacking the excavated soil not more than 5m clear from the edge the excavation. Extra for earthwork excavated in saturated soil for erery 0.30m depth or part thereof over 0.60m depth below water table incl. pumping and bailing out as directed by the departmental officer up to a depth of 1.80m. (for 300mm and 350mm dia)

Rectification to the old joints of full round RCC pipes including dismantling the existing joints, removing the RCC collars. Cleaning the pipe and rejoining the same with cement mortar 1:2 ( 1 cement:2 fine sand ) to true to line and level with jute soaked in cement paste including curing hydraulic testing etc complete as per the directions of Engineer-in- charge. 350 mm dia

300 mm dia

Refilling the pipeline / foundation trenches plinth sides, foundation etc. with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 50mand all lifts and disposal of surplus earth as directed by the departmenmtal officer

Clearing grass and removal of rubbish upto a distance of 50 m outside the periphery of the area

Felling trees of girth(measured at a height of 1. m. Above ground level) inluding cutting of trunks and branches removing the roots stacking the serviceable material and disposal of unserviceable material for all leads : Beyond 60 cm and upto 120 cm grith

Supplying of M.S gate of size 300x480x04 mm with handle of M.S. square bar of size 12x12mm and M.S frame of angle 25x25x04 with hold fast of required numbers including cutting, hoisting, applying priming coat of red lead paint and black oil paint etc complete and as directed by the Engineer In charge

Supplying, of HDPE pipes at store or site of work including loading, unloading, stacking, transit insurance etc. complete bearing ISI mark &conforming to IS: 4984-1995 & made from PE 100 resin Class IV (6 kg/cm2). Outer dia in mm 125

Supplying, of fabricated /moulded HDPE pipe fittings/specials as per required Pressure class of HDPE Pipes, conforming to IS:8360 (Part I & III) and IS:8008(Part I to IX).The HDPE pipe fittings/specials shall be manufactured from virgin resin PE100 .HDPE Pipe fittings/specials(fabricated/moulded) Fabricated Equal Tee of HDPE PE 100 for Butt jointing. a) 140

Fabricated 90 deg.bend of HDPE PE 100 for Butt jointing. A) 140

Moulded End Cap of HDPE PE 100 for Butt jointing. A) 140

Jointing of HDPE pipes by heating the two ends of the pipe with electrically heated mirror, to the required temperature, including the hire charges of heating mirror and the generator set for the electricity for the heating mirror, etc. complete as per the direction of the engineer in- charge 110 mm OD

LAXMAN S. NAIK (BID ID -55094)