Construction of 30 Nos. Rainwater Harvesting Recharge Pits in R-IV Division Area

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge. All kinds of soil

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, depth upto 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m : Pipes, cables etc. exceeding 80 mm dia. but not exceeding 300 mm dia

Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials.All kinds of soil

Filling available excavated earth (Excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and water. Lead up to 50 m and lift uoto 1.5 m.

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, upto 90 metre depth below ground level 300 mm dia. All Types of Soil

Boring /drilling borewell of required dia for casing/strainer pipe, by suitable method prescribed in IS: 2800 (Part-I) including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hiring and running charges of all equipments, tools, plants and machinaries required for the job, all complete as per direction of Engineer-in-charge Rocky Strata including boulders 300 mm dia

Supplying, assembling, lowering and fixing in vertical position in bore well, unplasticized PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer -in-charge. 150 mm nominal size dia.

Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS: 12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge.150mm nominal size dia.

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I). 150 mm dia

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of: 150mm dia

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work upto plinth level 1:5:10 (1 Cement: 5 coarse sand: 10 graded stone aggregate 40mm nominal size)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work upto plinth level 1:2:4 (1 Cement: 2 coarse sand: 4 graded stone aggregate 20mm nominal size)

Supplying, filling, spreading & levelling stone aggregate 20-40mm nominal size in recharge pit, in reduced thickness, for all lead & lifts, all complete as per the direction and entire satisfaction of engineer-in-charge.

Supply and filling in plinth with Jamuna sand under floors, including watering ramming consolidating and dressing complete as per the direction and entire satisfaction of engineer-in-charge.

Supply and filling in plinth with charcoal layer under floors, including watering ramming consolidating and dressing complete

Providing & installing in position recycled poly propylene modular structure having more than 95% -98% void volume ratio fixed in an overlapping arrangement to present monolithicor plate structure as per approved pattern/design to bear long term vertical/horizontal compressive stress of 25kn/sqm and short term vertical stress of 35-40kn/sqm suitable for traffic load (with adequate backfill) of minimum 25 tonne truck load complete as per direction of engineer-in-charge.

Providing and fixing of non woven geotextile having thickness of 400 gsm, having minimum tear strength length and width as per ASTM D4533 having puncture strength ASTM D 6241 elongation at break % of 57 plus as per ASTM D4595 in two layers, made out of long fibers to hold the modules and protect liner including cutting, sizing, head welding, and needle punched for high porosity and proper percolation complete as per entire satisfaction of Engineer-in-charge. Lap at joints and corners shall be 300mm payment shall be made for outer dimension of co-polymer based rain water harvesting structure.

Providing and fixing installing testing and commissioning of microfilter of FRP container having minimum 780mm dia. and thickness of 25mm with stainless steel 304 grades stainer, having steel bucket of 600 micron capable of eliminating finer particulate matter upto 90 microns filteration, with made of SS net with long fiber foam of i/c provision of inlet and outlet 300mm dia. for connection with drain and complete as per direction of Engineer-in-charge. Filter capacity 80kl per hour should be register under GRIHA.Total depth of filter shall be 2000mm including 1000mm filter extension.

Providing and fixing PVC pipe of working pressure 6kg per square cm confirming to IS:-4985 including jointing with sealing ring confiming to IS:5382 leaving 10mm gap for thermal expansion 300mm dia. PVC pipe.

Constructing brick masonry manhole ( silt chamber type) of size 120X90X120 cm deep with FPS bricks of class designation 7.5 in cement mortar 1:4( 1 Cement : 4 manufacturing sand upto 100%) 15 cm thick RCC top slab with 500mm dia opening with cement concrete 1:2:4 ( 1 Cement: 2 manufacturing sand upto 25%: 4 recycled aggregate 20mm nominal size upto 25%) reinforced with a 18.92 Kg/each TMT bars, 20 cm foundation cement concrete 1:4:8 ( 1 Cement: 4 Manufacturing sand upto 100% recycled aggregate 40mm nominal size upto 100%) inside plaster 12mm thick with cement mortar 1:3 ( 1 cement : 3 manufacturing sand upto 100% ) finished with a floating coat of neat cement and providing 75mm thick bed cement concrete of 1:2:4 ( 1 Cement: 2 manufacturing sand upto 25%: 4 recycled aggregate 20mm nominal size upto 25%) including neat cement punning inside the manhole complete as per standard design. (Depth shall be measured from invert level of pipe upto top of RCC slab). Difference of 30cm shall be kept between invert level of pipe and manhole bottom excluding the cost of SFRC manhole cover and frame 500mm dia which shall be paid separately. All complete as per direction of Engineer-in-charge.

Extra for depth for manholes :Size 120x90 cm With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing orange colour safety foot rest of minimum 6mm thick plastic encapsulated as per IS:10910, on 12mm dia steel bar conforming to IS: 1786, having minimum cross section as 23mm X 25mm and over all minimum length 263mm and width as 165mm with minimum 112 mm space between protruded legs having 2mm tread on top surface by ribbing or chequiring besides necessary and adequate anchoring projection on tail length on 138mm as per standard drawing and suitable to with stand the bend test and chemical resistance identification mark to be visible even after fixing,including fixing manhole with 30X20X15cm cement concrete block 1:3:6(1 cement: 3 Coarse sand: 6 graded stone aggregrate 20mm nominal size) complete as per design

Providing and fixing in position pre-cast RCC manhole covers and frame of required shape and approved quality H D - 20 Circular shape 560 mm internal diameter

Carriage of material by mechanical transport including loading unloading etc. complete for initial lead of 1 km. (a) Earth

Extra for every additional lead of 1 km or part thereof Beyond initial lead of 1 km. Upto 30km. (a) Earth

Yash Constructions

R.K. Jain and Sons Hospitality Services Pvt. Ltd.

Verma Global Infratech Private Limited