Bharat Sanchar Nigam Limited-BSNL has published Tender For Erection Of 40M Gbt At Nallalam. Submission Date for this Tender is 09-05-2024. Electrification Work Tenders in Kozhikode Kerala. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | PART A:- ERECTION:- 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-in-charge. |
| 2 | All kinds of soil |
| 3 | Ordinary rock |
| 4 | Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials. |
| 5 | All kinds of soil |
| 6 | Ordinary or hard rock |
| 7 | 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 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. |
| 8 | All kinds of soil. |
| 9 | 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. |
| 10 | Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work up to plinth level : |
| 11 | 1:2:4 (1 cement : 2 M sand : 4 graded stone aggregate 20 mm nominal size derived from natural sources) |
| 12 | 1:4:8 (1 cement : 4 M sand : 8 graded stone aggregate 40mm nominal size) |
| 13 | 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 : |
| 14 | 1:1.5:3 (1 cement:1.5 M sand:3 graded stone aggregate 20mm nominal size) |
| 15 | Centring and shuttering including strutting, propping etc. and removal of form for: |
| 16 | Foundation, footings, bases of columns etc. for mass concrete |
| 17 | Lintels, beams, plinth beams, girders, bressummers and cantilevers. |
| 18 | Columns, Pillars, Piers, Abutments, Posts and Struts |
| 19 | Reinforcement for reinforced cement concrete works including straightening, cutting, bending, binding and placing in position all complete. |
| 20 | Thermo Mechanically Treated Bars |
| 21 | Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 M sand) |
| 22 | Brick work withF.P.S.bricks of class designation 5.0 in foundation and plinth in |
| 23 | Cement mortar 1:6 (1 cement : 6 M sand) |
| 24 | Half brick masonry with common burnt clay F.P.S. (non modular) bricks of class designation 50 in foundations and plinth in : |
| 25 | Cement mortar 1:4 (1 cement : 4 M sand) |
| 26 | 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) upto plinth level with : |
| 27 | Cement mortar 1:6 (1 cement : 6 coarse sand). |
| 28 | 12 mm cement plaster of mix : |
| 29 | 1:4 (1 cement: 4 M sand) |
| 30 | 1:6 (1 cement: 6 M sand) |
| 31 | Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : |
| 32 | Two or more coats on new work |
| 33 | Providing and fixing G.I. chain link fabric fencing of required width in mesh size 25x25 mm made of G.I. wire of dia 3 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge. |
| 34 | 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. |
| 35 | Providing and laying factory made Precast concrete solid blocks of 200 mm thickness of grade M10 made of C&D waste from approved manufacturer in foundation and plinth in: |
| 36 | Cement mortar 1:6 (1 cement : 6 coarse sand) |
| 37 | Providing and fixing precoated galvanized iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm ( + 0.05 %), total coated thickness with zinc coating 120 gm per sqm as per IS:277 in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. |
| 38 | Providing and fixing precoated galvanized steel sheet roofing accessories 0.50 mm (+ 0.05 %) total coated thickness, Zinc coating 120 gm per sqm as per IS: 277 in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete : |
| 39 | Ridges plain (500 - 600mm). |
| 40 | Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. |
| 41 | Hot finished welded type tubes |
| 42 | Fixing Foundation bolts / anchor bolts to templates etc. for tower, in systems of tower foundation including accurate alignment, levelling etc. complete as per the direction of Engineer-in-charge (Anchor bolts along with templates will be supplied free of cost and the rate in this item is only for fixingup to 12 no.s of bolts in one stem/column) in position in the columns before putting concrete as per the requirement. |
| 43 | Supplying new Galvanized iron bolts, nuts and washers for fastening the 40 M narrow based tower (for missing bolts, nuts etc.) |
| 44 | Erection of four legged ground based (light weight) 40 m high communication tower after segregation/sorting of the tower materialsas per erection drawingsTower materials will be supplied free of cost at specified place. |
| 45 | Re-Paintingthe 40 metre ground based tower, including ladder, cable tray, working platforms,etc. ,after scrapping the old paint surface by sand papering,with Luxol or equivalent high gloss synthetic enamel paintin two or more coats ofrequired colour of deep orange and white in alternate bands to give an even shade over One coat of Etch primer and Zinc chromate yellowprimer as per aviation standards for tower as directed by Engineer-in-charge. |
| 46 | Providing and fixing in position structural steel work with galvanized steel sections - tees, angles, flats, channels including bolts, nuts of specified grade etc. welded in built up sections/frames etc. including cutting, making holes, hoisting, fixing in position etc. all complete. |
| 47 | Providing G I strips of size 50x3 mm one end connected to the tower leg with G Ibolts 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 Iplate earth/ring earth with G Ibolts 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) |
| 48 | Providing GI plate earth including excavation of pit of size 1500x1500x 3000mm depth in all kinds of soil and placing four numbers of GI plates of size 600x600x6 mm thickverticallyat diagonally opposite ends in the excavated pit and inter connect the plates with 50x3 mm GI strips with 2 no.s of GI bolts and nuts of 10mm dia at each connection and placing galvanized iron pipe of 50mm dia and 3000mm length at the centre of the GI plate grid and interconnect the pipe at minimum two sides with connecting flat of the GI plates with GI flat of size 50x3mm with GI bolts and nuts and fill the pit up to a depth of 650mmwith charcoal of 20mm nominal size and the remainingportion of pitshall be filled with loose soil free from stones and wet the entire soil with water and providing precast RCC rings 300mm dia 450mm height and 50mm thick with reinforcements and cover slab of 300mm dia 50mm thick for earth chamber etc. and levelling the surplus excavated earth as directed by the Engineer in Charge. |
| 49 | Providing and fixing copper lightning conductor of 1500mm length, 25mm dia hollow tube of wall thickness not less than 1.6mmincluding tinning the bottom portion of the spike for a length not less than 150mm(lightning conductor to be fixed at the top of the tower) and connecting the copper bus bar to the lightening arrester using 2 Nos.10mm dia brass bolts and nuts all complete as directed by the Engineer-in-charge. |
| 50 | Providing GI bus bar of 50 x 3 mm connected to thetinned bottom portion oflightning 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 atuniform interval of 1.5 Mt.. using properGI clamps and ceramic insulatorssuch 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) |
| 51 | Supplying and fixing LED aviation obstruction lamp of Saraj, Binoy, aviades, Litten or equivalent with Light DependentResistant sensor (day and night automatic timer) with necessary MCB switches, armoured cables(2x1.5 mm square copper cables) having total length of 60 meter. clamps etc.,complete as per the direction of Engineer-in-charge. |
| 52 | Supplying and Fixing Mild Steel Anchor Bolts of Required Diameter and Length ( Diameter Varying from 16mm to 32mm ) for Tower Foundation including Making Steel Templates with Necessary Holesto suitthe Diameter of the Anchor Bolts including Mechanical threading to the top 15 centimetre length of Bolts , welding with necessary MS Plates at the bottom of independent anchor bolts ,etc. complete .The Anchor Bolts and Template shall be fixed to line andLevel keeping the Centre to Centre Distance in tact,inside the Centring and shutteringof the Tower BeamsBefore doing concreting of Tower Foundation .( The Rate includes the cost of all Labour involved in the above process of operation inclusive Materials ,Transportation and Fixing Charges and Nothing Extra shall be Paid) |
| 53 | Providing ring earth by excavating trench of width 500 mm and depth 1200 mmand usingGI flats of size 50x3 mm and joining this with plate earth at the corners with 2 nos. of 10 mm dia GI bolts and nuts with necessary spring, washers including 1 to 3 mm thick lead in between the joining members, refilling the trenches with excavated soil free from stones and disposal of surplus soil within 5 km lead etc. all complete as directed by the Engineer -in -charge |
| 54 | Steel work for making template of tower base for future installation with MS plate and angle sections including making necessary holes providing with nuts and bolts etc. complete as per the direction of Engineer in charge. |
| 55 | PART B:- DISMANTLING:- Dismantling the existingNarrow based 40 metre Ground Tower. The rate includes for dismembering tower members by removing bolts and nuts withoutany damage to tower members such as main legs, bracings, torsion members, ladders, wave guide racks, aviation lamp, electrical wires, earthing strips, antenna fixtures Lightening arresters etc. complete . |
| 56 | Transportation of dismantledtower materials by mechanical transport to Nallalam Staff Quarters for lead upto 50 km including loading unloading handling and stocking the tower materials insite of work including preparing list of various membersas per the direction of Engineer in charge. |
| 57 | DemolishingR.C.C. stem, Tie beam and Tower legs etc., bymechanicalmeans such as power driller/Jack hammer /manually including gas cutting the Foundation bolts and steel reinforcement stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge. |
| 58 | Demolishing of RR 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 : |
| 59 | In cement mortar |
| 60 | Disposal of debris/building rubbish etc.through mechanical Transportto the corporation approved dumping yardincluding levelling the site etc. complete. |
| 61 | Credit for unserviceable scrap steel reinforcement, angles,GI flats ,M.S. pipes etc. recovered from the dismantling etc. complete |
| 62 | Credit for the recovered usable RR stones ( assuming 60 % of total volume can be reused) |
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