Construction of 60000 Liters Capacity OHT at Muppathuvetti H/O Muppathuvetti Panchayat

Earthwork excavation and dwposition on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by Board officers.Hard stiff clay, block cotton, hard red earth, shales, murram, ordinary gravel, stoney earth and earth mixed with small size boulders for foundation SS 20B For Foundation

Second depth of 0.25m

Sand filling with clear river sand including watering, consolidation etc.,complete for Foundation as directed by Bdo officers Columns

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for fooundation including the cost of mixing concrete, ramming, curing etc., complete as directed by Board officers. Columns

RCC 1:11/2:3 using 20mm HBG Metal excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing Below 1.50m from GL

Upto GL

Above Gl and Upto 4.50m Height

Above 4.50m and upto 7.32m Ht from GL

Above 7.32m and upto 10.98m Ht from GL

Above 10.98m and upto 14.64m ht form GL

Above 14.64m and upto 18.30m ht form GL

Provinding steel centering using MS plates of size 90cmx60cm 13 grade to 10 grade thick welded with 25mmx25mmx3mm MS angles supported with country wood stantling of size 10cmx6.5cm at 90 cm C/C strutting with casurina props of 100m to 13cm dia as directed by Board Officers.SQARE Surface

Columns above 3.30m upto 4.30m ht from GL

Columns above 4.30m upto 5.30m ht from GL

Columns above 5.30m upto 6.30m ht from GLDeduction Braces @ 5.975m above GL

Columns above 6.30m upto 7.30m ht from GL

Columns above 7.30m upto 8.30m ht from GL

Columns above 8.30m upto 9.30m ht from GLDeduction Braces @ 9.075m above GL

Columns above 9.30m upto 10.30m ht from GL

Columns above 10.30m upto 11.30m ht from GL

Columns above 11.30m upto 11.40m ht from GL

Plane Surface

From 5.30m to 6.30m htabove GL

From 8.30m to 9.30m ht above GL

From 11.30m to 12.30m ht above GL

Curved Surface

From 3.30m to 4.30m Height (From Floor Slab)

Supplying, fabricating and placing in position of HSD steel rods for reinforcement including the cost of steel and binding wire etc., complete and as directed by Board officers.

Painting two coats using approved quality Cement Paint over one cost of priming coat exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by Board officers.

Supplying and Fixing in Position of Cut Stone set in Cm 1:3 using well dressed cut stone supporting inlet pipe inside the tank and as directed by the officers

Provision for pipe connection arrangements for inlet outlet, scour and overflow etc., includeing cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality enamel paint etc., complete as detailed below. For Inlet Arrangements 80mm GI Pipes

80mm GI Coupling

80mm GI Bend

80mm GI Flange Set

90mm PVC Threaded Coupler

For Outlet Arrangements 80mm GI Pipes

80mm GI Coupling

80mm GI Bend

80mm GI Flange Set

80mm GM Gate Valve

65mm GM Gate Valve

90mm PVC Threaded Coupler

90mm x 63mm PVC Reducer

For Source Arrangemets 80mm GI Pipes

80mm GI Coupling

80mm GI Bend

80mm GI Flange Set

90mm PVC Threaded Coupler

Rubber Sheet

For Over flow arrangements 80mm GI Pipes

80mm GI Coupling

80mm GI Bend

80mm GI Flange Set

90mm PVC Threaded Coupler

Rubber Sheet

Bolt and Nuts

Labour Charges 80mm GI Pipe - Cutting

80mm GI Pipe - Threading

Fabrication,supply, delivery and fixing of outside MS ladder of 45cm wide made out of 50x50x6m MS angle for sides and steps in 16mm MS plain rods fixed at 30cm centre to centre welded, jointed etc., providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint for providing access to roof top of 10,000 lit. capacity OHT of suitable inclined length, including bottom anchorage and 6transportation and as directed by Board officers.

Supply and delivery and fixing position of CI man hole cover and frame of Size 60x60cm on roof slab and as directed by the officers The manhole frame and cover should be of light duty and conforming to ISI 1726/1974

Supply and Delivery and Fixing in Position of 150mm dia AC Ventilators on the roof Slab and as directed by the officers

Refilling the Foundation for Service reservoir with excavated earth (other than sand) in layers of 15cm thick well rammed,watering and consoildating etc Complete complying with standard Specification as directed by the officers Deduction for Column Footings,Columns and Braces upto GL

Providing and fixing of RCC inner access ladder in RCC 1:1:5:3 (one cement, one and half sand and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc., to required height and clear width of 45cm consisting of two Nos. of vertical post of 10cm x 15cm and step slab of 25mm x25mm etc., complete and as directed by Board officers.

Laying and Jointion of Pipeline worksSupply of 90mm PVC pipes and Specials 90mm PVC 6Ksc Pipes

90mm PVC Threaded Coupler

Earth work excavation and depositing on bank with initial lead and lift in all soil for etc Complete

Refilling with exvacated soil (other than sand ) complying with the standard speicfication for filling in foundation and beasement

Laying and jointing of PVC pipe into trench for etc Complete

Plat form Earth work excavation for all soils including all labour charges etc complete

Cement concrete 1:4:8 mix using 40 mm metal including all Lbour charges etc complete

Supply and erecting Centering including all labour chages etc complete

Cement concrete 1:3:6 mix using 20 mm metal including all Lbour charges etc complete

Cement concrete 1:2:4 mix using 20 mm metal including all Lbour charges etc complete

Filling 40mm Metal Including Cost and conveyance of all labour charges etc., complete.

Filling 20mm Metal Including Cost and conveyance of all labour charges etc., complete.

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