C/o 40m GBT at Edamalakkudy

Amount

Earth work in excavation by manual or mechanical means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 Sam 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 :-

All kinds of soil

Ordinary rock including soft laterite.

Earth work in excavation by mechanical means or manual means in foundation trenches or drains not exceeding 1.5m in width as well as 10sqm on plan including dressing of sides and ramming of bottoms , lift up to 1.5m including getting out the soil and disposal of surplus soil as directed with in a lead of 50m.

All kinds of soil

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

All kinds of soil

Ordinary or hard rock.

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 upto 1.5 m.

All kinds of soil.

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

1:2:4 (1 Cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 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 : a) 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size).

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement :

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

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

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

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Columns, Pillars, Piers, Abutments, Posts and Struts

Walls

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.

Placing of anchor bolts in position with templates( departmentally supplied) including all labours and handling charges and checking with template in line level, plumb etc. as required by the Engineer in charge etc. complete.

Supplying M.S. Foundation bolts for 40mtr GBT (32mm dia, 1.5mtr long ) including threading top 150mm length, galvanised nuts (2 no.s), plain washer, spring washer etc. complete as per standard design.

Smooth finishing of the Exposed surfaces of RCC Work with 6mm thick cement mortar 1:3

1:3 ( 1 cement : 3 fine sand)

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Supplying at site Angle iron post & strut of required size including bottom to be split and bent at right angle in opposite direction for 10 cm length and drilling holes upto 10 mm dia. etc. complete.

Providing and fixing concertina coil fencing with punched tape concertina coil 600 mm dia 10 metre openable length ( total length 90 m), having 50 nos rounds per 6 metre length, upto 3 m height of wall with existing angle iron 'Y' shaped placed 2.4m or 3.00 m apart and with 9 horizontal R.B.T. reinforced barbed wire, stud tied with G.I. staples and G.I. clips to retain horizontal, including necessary bolts or G.I. barbed wire tied to angle iron, all complete as per direction of Engineer-in-charge, with reinforced barbed tape(R.B.T.) / Spring core (2.5mm thick) wire of high tensile strength of 165 kg/ sq.mm with tape (0.52 mm thick) and weight 43.478 gm/ metre (cost of M.S. angle, C.C. blocks shall be paid separately)

Transportation of 40.0 mtr Ground based tower materials by mechanical transport from Kaloor store, Ernakulam to Pettimudy Forest Checckpost, including sorting of tower material from available material at store, loading, unloading and stacking at tower site including all incidental charges.

Supply at site of MS hot dipped galvanised fabricated angles, bolts, nuts, spring/plain washers etc. .of different sizes as specified for tower works including transportation to siteall complete as direction of Engineer in Charge.

Erection of four legged light weight GB communication tower(NB) indicated in item No. 16 and 17 above, including all fixtures, fittings, platforms, any mounts for GSM, ladders, runway, etc all complete.

Providing and applying paint of approved specification over the four legged light weight communication tower ( NB ) One coat of Etch Primer (MRF, Asian paint or equivalent) should be applied first followed by one coats of zinc chromate primer .Over that two or more coats of enamel paint Orange/ White of approved brand and manufacture should be applied.) All works to be completed as per the directions of the Engineer in charge

a) 40m NB Tower .

Providing G I plate earth including excavation of pit of size 200x2000x3000mm depth in all kinds of soils and placing four numbers of G I plates of size 600x600x6 mm thick vertically at diagonally opposite ends in the excavated pit and inter connecting the plates with 4 Nos. of 50x3mm G I strips with 2 no.s of G I bolts and nuts of 10mm dia at each connection and covering the joints with bitumen, placing G I pipe of 50mm internal dia ( B Class) and 3000mm length at the center of the plate grid for watering and filling the pit with fine ash and / or finally sieved good quality soil including ramming in 20 cm layers etc. complete and cover the pit with 750x750x50mm thick precast reinforced cement concrete slab having 100mm dia hole at the centre to pass the GI pipe and construct a chamber of Internal size not less than 280x280x250mm with half brick wall including fixing CI manhole cover of size 300x300mm of weight not less than 7.20 Kg. (cover & frame) and plastering the chamber on all sides with cement mortar 1:4 of 12mm thick (1 cement : 4 fine sand) and including disposal of surplus excavated earth if any within a distance of 5 Km lead as directed by the Engineer-in-Charge.

Providing ring earth by excavating of trench of width 500 mm and depth 1200 mm depth and laying G I flats of size 50x3mm and jointing this flats with plate earth [vide item No.14] and jointing at corners with 2 Nos. of 10mm dia G I bolts and nuts with necessary spring washers including lead strip of 90 x 50 x 1 mm in between the joining members, and refilling the trenches with the excavated soil free from stones and disposal of surplus soil within 5 Km lead as per the direction of the Engineer-in-Charge. (All joints should be covered by Shalimar or equivalent water proof tape and made air tight)

Providing G I strips of size 50x3 mm one end connected to the tower leg with G I bolts and nuts [with lead sheath in between] including providing and connecting the legs at the bottom of tower and the other end shall be connected to the G I plate earth/ring earth with G I bolts and nuts [with lead sheath in between] including clamping the down lead flat to walls/stems without any sharp bends using necessary clamps and screws as directed by the Engineer-in-Charge. (All joints should be covered by Shalimar or equivalent water proof tape and made air tight)

Providing and fixing copper lightning conductor of 1500mm length, 25mm dia hollow tube of wall thickness not less than 1.6mm…including tinning the bottom portion of the spike for a length not less than 150 mm (lightning conductor to be fixed at the top of the tower) and connecting the GI bus bar to the lightning arrester using 2 Nos. 10 mm dia brass bolts and nuts all complete as directed by the Engineer-in-charge. (All joints should be covered by Shalimar or equivalent water proof tape and made air tight]

Providing GI bus bar of 50 x 3 mm connected to the tinned bottom portion of lightning conductor and to the ring earth/plate earth with 2 no.s of 10 mm dia GI nuts & bolts [with lead sheath in between] at each connection. The bus bar shall be drawn through heat shrink sleeve and shall be shrunk properly. The bus bar shall be clamped to the tower/ building walls at uniform interval of 1.5 Mt.. using proper GI clamps and ceramic insulators such that the bus bar shall be well insulated from the tower building walls all complete as directed by the Engineer-in-charge. (All joints should be covered by Shalimar or equivalent water proof tape and made air tight)

SURESH ASSOCIATES

Yoonus Saleem