14/2025-26/BSNL/CD/RAIPUR DATE 22.05.2025

Amount

Earth work in excavation by mechanical means ( Hydraulic excavator ) / manual means in foundation trenches or drains ( not exceeding 1.5 m in width or 10 sqm on plan ) including dressing of sides and ramming of bottoms, lift up to 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m :

All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

Removing Fallen trees of the girth (measured at a height of 1 m above ground level), including cutting of trunks and branches, removing the roots and and disposal of the same beyond municiple limit.

Beyond 60 cm girth upto and including 120 cm girth

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 40 mm nominal size).

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for :

Foundations, footings, bases of columns, etc. for mass concrete

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Smoothr finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement: 3 Fine sand).

1:3 (1 Cement: 3 Fine sand).

Dismantling of damaged steel work of 40 meter light weight narrow based tower with all its necessary components viz. climbing ladder, platform with railing in angles, tees, flats and channels including all gusset plates, with bolts, nuts and plain/ spring washers, cutting rivets, welding etc wherever required complete in all respect including dismembering and stacking within 50metres lead as per direction of the Engineer-in-charge. (NOTE: Rate includes cost of all operations involved including hire and labour charges of tools, plants and machineries, insurance premium of labours etc and nothing will be paid extra.)

Labour for hoisting, fixing and erection of 40 metre high Tower as per Departmental drawing & design with all its necessary components viz. climbing ladder, platform with railing and fixing with bolts, nuts and spring washers, necessary welding etc wherever required complete in all respect as per direction of the Engineer-in-charge.(NOTE: Rate includes cost of all operations involved in hoisting and erection of tower including hire and labour charges of tools, plants and machineries, insurance premium of labours etc and nothing will be paid extra).

Providing, supplying and fixing of missing members, galvanised steel tower material with average mass of zinc coating of 610gm/sqm (approx. 85 micron) consisting of angles, flats, base plates, gusset plates, ladders, connecting plates, bolts & nuts, plain/spring washers including making holes of required size, all fabricated as per approved drawing & specification for erection of tower. The galvanising shall be as per IS:4759. The structural steel for tower shall confirm to IS:2062 & fabrication shall be as per IS:4757.The tower shall be mounted by galvanised fastners with washers.

Painting two or more coats with high gloss synthetic enamel paint of approved brand and colour (international white and international orange) over one coat of etching primer (BISON wash primer or equivalent) and second coat of BISON HB Zinc phosphate primer or equivalent of approved brand as per recommendation of International Civil Aviation rules in 40 metres Galvanised structural steel tower. (NOTE: Rate includes painting of tower, platform, antenna mount, ladder, vertical tray, horizontal tray, post etc)

SITC of 230 V AC LED based aviation obstruction light suitable for an input supply of 230 volts 50 Hrtz AC & complying to ICAO requirment ( Low intensity/ Type B ) on the top of the existing communication tower (40 M height) complete with necessary accessories / clamps i/c supplying & fixing suitable light controller unit having photo senser for automatic Dusk to Dawn operation etc as required as per detail specifications and as per direction of Engg - in Charge

Supplying & fixing with 2x1.5mm copper unarmoured cable & providing end term-ination complete as per the directions of Engineer-in-charge.

Fixing Lightening Conductor of suitable material as per details specification and standard drawing and and direction of Engineer in charge.

Carriage of the dismantled 40 m Light Weight Narrow Base Tower materials from Sambalpur (Dhamtari) Tower site to Chhuikhadan (Khairagarh) i/c loading, unloading, staking systematcally etc all operations complete as directed by the Engineer-In-Charge (upto 150 km).