Construction of Recharge shaft with filter pit at different locations of Khandela Block of Sikar District

Construction of Recharge shaft with filter pit (17 Nos ) at different locations of Khandela Block

Construction of 250 mm NB recharge shaft up to 100m depth and above to accommodate G.I. Pipe assembly of 80 mm Size and Gravel Packing in all types of alluvium strata by percussion drilling method with "code of practice for construction and testing of tube wells (IS:2800 (Part-II) :1991 and IS:2800 (Part-II) :1979 both amended up to date). The work will not include cost of G.I. pipe and gravel.

Earth work in excavation/ by mechanical means (Hydraulic Excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5m in width as well as 10 sqm on plan) including disposal of excavated earth, lead upto 50 m and lift upto 1.5 m , disposed earth to be levelled and neatly dressed:: Hard rock(blasting prohibited) useful material 30%

Providing and laying in position cement concrete including curing, compaction etc. complete in specified grade excluding the cost of centering and shuttering - All work up to plinth level. M10 grade Nominal Mix 1: 3: 6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size).

Providing and fixing of 150 mm thick RCC precast panel made of M35 grade concrete with required steel, rebar chair, wire mesh, connection bolt, fastener and beveled washer with erection ready complete in all respect with all lead.

Plaster on new surface on wall in cement sand mortar 1:3 including racking of joints etc. complete fine finish : 12mm thick

Supply & laying of clean, clear sharp river sand of size 1 to 2mm coarse, without deduction of voids.

Supply & laying River-gravels of following sizes in recharge shaft, filter pit after screening & washing from kachha shift without deduction of voids Size 3 to 5 mm

Supply & laying of charcoal

Supply & lying River-gravels of following sizes in recharge shaft, filter pit after screening & washing from kachha shift without deduction of voids Size 9 to 12 mm

Cement Concrete Jali 50 mm thick

Galvanized wire mesh of average width of aperature 1.4 mm and nominal dia of wire 0.63mm

Providing and fixing steel gate, grating , and grills made of angles, tees, square bars, flats,or black pipe with holdfast and fittings complete as per design and drawing including cutting welding and fabrication with priming coat of red oxide

Supply & lowering air line of 80mm dia, G.I. pipe 'B' class having perforation 3 to 5mm size all arrow of G.I. pipe in Zig- Zag fashion & making air vent at top including the cost of Tee- Nipples, Elbow, Socket etc.

Providing and fixing of 150 mm thick RCC precast panel made of M35 grade concrete with required steel, rebar chair, wire mesh, connection bolt, fastener and beveled washer with erection ready complete in all respect with all lead.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work

Hydraulic Excavator (3D) with driver and fuel for site clearance and levelling

Supply & fixing Pre-cast RCC Rinngs at the mouth of recharge shaft of M20 mix with 40 mm thickness Diameter 750 mm

Supply of direction and place identification sign boards made out of 2mm thick MS sheet framed to angle iron 35 x 35 x 5mm and 2 vertical posts of angle iron 35 x 35 x 5 mm, 1800 mm long withhold fasts, stove enameled paint and reflective letters, numerals, symbols etc. complete of size 900 mm x 600 mm.

Lettering with black Japan paint of approved brand and manufacture (letter height 10cm)

Lettering with black Japan paint of approved brand and manufacture (letter height 7cm)

Lettering with black Japan paint of approved brand and manufacture (letter height 5cm)