Erection of 40mtr Ground Based Communication Tower including dismantling GBT at Pookkottukavu and construction of foundation painting and earthing at Chinakkathurkavu Ottappalam Palakkad BA

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 sq.m. on plan) including disposal of excavated earth, lead upto 50 m and lift upto 1.5m, disposed earth to be levelled and neatly dressed

All kinds of soil

Ordinary rock

Hard laterite / Narikkal ( blasting prohibited)

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains ( not exceeding 1.50 m in width or 10 Sq.M on plan ) including dressing of sides and ramming of bottoms, lift upto 1.50 m including getting out the excavated soil and disposal of surplus excavated soil as directed with in a lead of 50 m

All kinds of soil

Extra for every additional lift of 1.5 m beyond initial depth of 1.50 m

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 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 metre and lift up to 1.5 metre.

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

1:2:4 (1 cement : 2 M sand : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

1:4:8 (1 cement : 4 M sand : 8 graded stone aggregate 40mm nominal size)

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

1:1.5:3 (1 cement:1.5 M sand:3 graded stone aggregate 20mm nominal size)

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

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

Lintels, beams, plinth beams, girders, bressummers and cantilevers.

Columns, Pillars, Piers, Abutments, Posts and Struts

Reinforcement for reinforced cement concrete works including straightening, cutting, bending, binding and placing in position all complete.

Thermo Mechanically Treated Bars

Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3

1:3 ( 1 cement : 3 fine sand)

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement:6 coarse sand: 12 graded stone aggregate 20mm nominal size ) at plinth level with

Cement mortar 1:6 (1 cement : 6 coarse sand)

Finishing walls with water proofing cement paint of required shade:-

New work ( 2 or more coats applied @ 3.84 Kg/Sq.M)

Supply of MS hot dipped galvanized bolts, nuts, washers etc. .of different sizes as specified for tower works.

Placing of anchor bolts in sets including templates including all labours and handling charges and checking with template in line level, plumb etc. as per the direction of Engineer-in-charge.

Supplying Anchor bolts for fixing base plate etc. required at site as per specification.

Transportation of 40.0 mtr Ground based tower materials by mechanical transport from ALATHUR TE Building store yard to Navakkode site, including sorting, loading, unloading and stacking at tower site including all incidental charges. (Approximate 12 KM)

Erection of Four Legged Light Weight Ground Based Communication Tower .

Providing gantry with galvanized MS angles, flats, channels, tees, pipes including cutting, drilling, welding, riveting, bolting, hoisting and fixing in position including embedding in cement concrete 1:2:4 (1cement : 2coarse sand : 4graded stone aggregate, 20mm nominal size)

Providing and applying paint of approved specification over the Four Legged Communication Tower indicated above. Apply two or more coats of enamel paint orange/white of approved brand and manufacture as directed by Engineer-in-charge.

construct a chamber of internal size not less than 280x280x250mm with half brick wall including and fixing CI manhole cover of size 300x300mm of 7.20kg (cover & frame) and plastering the chamber on all sides with cement mortar 1:4 (1cement

construct a chamber of internal size not less than 280x280x250mm with half brick wall including and fixing CI manhole cover of size 300x300mm of 7.20kg (cover & frame) and plastering the chamber on all sides with cement mortar 1:4 (1cement : 4fine sand) and including disposal of surplus excavated earth if any within a distance of 5km lead as directed by the Engineer-in-charge.

Providing GI bus bar 50x3mm connected to the tinned bottom portion of lightning conductor and to the ring earth/ plate earth with 2Nos. of 10mm dia. GI nuts & bolts (with lead sheath in between) at each connection . The buss bar shall be clamped to the tower/building walls at uniform interval of 1.50m using proper GI clamps and ceramic insulators such that the buss 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)

Providing GI strip of size 50x3mm one end connected to the tower leg with GI bolts and nuts ( with lead sheath in between) including providing and connecting the legs at the bottom of tower and other end shall be connected to the GI plate earth /ring earth with GI bolts and nuts (with lead sheath in between ) including clamping the down lead flat to wall/stems with out any sharp bends using necessary clamps and screws as directed by the Engineer -in charge.

Providing ring earth by excavating of trench of width 500mm and depth 1200mm depth and laying GI flats of size 50x3mm and jointing this flats with plate earth [vide item No.17] and jointing at corners with 2Nos. of 10mm dia. GI bolts and nuts with necessary (lead sheath in between) including refilling etc. as directed (All joints should be covered by Shalimar or equivalent water proof tape and made water tight)

Providing and fixing copper lighting conductor of 1500mm length, 25mm dia. hollow tube of wall thickness not less 1.60mm including tinning the bottom portion of the spike for a length not less than 150mm (lightning conductor to be fixed the top of the tower) and connecting the GI buss bar to the lightning arrester using 2Nos. 100mm 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]

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge :

In cement mortar

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Dismantling of 40 Mtr tower and sorting/ stacking the members as required by the Engineer in charge

Credit for RR stones available after dismantling RR Masonry

RAJINISH CONSTRUCTIONS (BID ID -846149)

SU SQUARE PROJECTES & INFRASRUCTURE (P)LTD (BID ID -846141)