Provision of Rain Water Harvesting at Surat International Airport

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-incharge. All kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All kind of Soil 1:3:6 (1 cement : 3 coarse sand (zone-lll) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Structural steel work in single section, fixed with or without connecting plate, including cutting,hoisting, fixing in position and applying a priming acoat of approved steel primer all complete.

Centering and shuttering including strutting, propping etc. and removal of form for Foundations, footings, bases of columns, etc. for mass concrete

Drilling 300 mm diameter borewell in all types of strata up to required depth including cost of bentonite power , carting ring, cutter, other required materials, labour charges etc. complete. The drilling shall be done by mud_ flushed rotary equipment and bore holes should withstand at least till completion of subsequent activities like assembly jointing, lowering of casing / strainer pipe, gravels packing, yield testing etc, complete up to required depth as show in dwawing and directed by engineer -in -charge.

Cleaning of existing unusable / non-working borewell by applying air compressor of capacity not less than 900 CFM/200 PSI for minimum one hours or ut to the availability of sand free discharge whichever is later including all labour charges and hire charges of copressor and othe equipment etc. complete as directed by engineer-in-charge.

Providing, Supplying, Fixing in bore hole 160 mm dia 6 Kg/cm2 P.V.C Pipe of approved Quality (Prince, Supreme,FinoIex) with ISI mark, in borewell / filter chamber, including 3.2 mm x 75 mm vertical perforations with spacing of 4 to 5 mm (or equivalent standard openings) in necessary lengths and necessary fittings and as per site situation and as directed by engineer —in- charge.

Supplying and filling clean best quality of well sorted - " SEVALIYA" or equivalent / aprproved by EIC sorted pea gravel having size 6 mm to 10 mm in layer of required thickness in filter chamber as per drawing and as directed by Engineer — in- charge.

Providing, fixing and binding SS-304 Hexagonal wire mesh_ surrounding the perforated casing pipe in filter chamber as directed by Engineer —in- charge.

Supplying and fixing of a cover made up of 150 mm thick RCC Chember Cover Mild Steel square frame as shown in drawings over filter chamber including all materials, fittings and labour charges etc, but excluding the cost of Steel frame and_ steel angle.The fixing of cover over walls should have arrangement of removing chamber and re-fixing again from time to time as shown in drawing and directed by engineer - in- charge.

Bore plug having 100 mm height made from UPVC of std. make suitable for 160 mm dia pipe.

Supplying and laying stone soling with stone boulders of size 150 mm to 225 mm in layers not exceeding 225 mm thick including hand packing with small stone chips and binding materials (gravel or moorum) including watering and copacting with road roller/ hand rammer as per direction of Engineer-in-charge. (Nothing extra to be paid for packing the voids and making surface levelled)

J K BUILDERS (BID ID -836922)

RAJKUMAR AGRWAL (BID ID -832151)

Raudra Technocrats Private Limited (BID ID -836926)

ABDUL AZIZ ABDUL KARIM (BID ID -837254)