Rehabilitation of Pollachi canal Cascade channel in Aliyar Dam in Anaimalai Taluk of Coimbatore District

Amount

Clearing the Juliflora jungle with uprooting and destroying the same effectively etc., complete complying with standard specification and as directed by the departmental officers.

Dismantling, clearing away and carefully stacking of materials useful for reuse for any thickness of walls, brick/stone masonry in cement mortar walls under 3m height complete complying with standard specifications and as directed by the departmental officers.

Dismantling, clearing away and carefully stacking of materials useful for reuse for any thickness of plain cement concrete complete complying with standard specifications and as directed by the departmental officers.

Random Rubble masonry in cement mortar 1:4 (one cement and four M-sand) using old rubble stones and bond stones including simultaneous pointing the exposed surfaces with same mortar and all incidental charges such as bailing out of water, curing, finishing complete complying with standard specifications and as directed by the departmental officers

Earth work excavating and depositing on bank with an initial lead of 10m and initial lift of 2m in sand,silt or loose soil,wet sand or silt not under water,light black cotton soil,sandy loam and ordinary soil including excavated earth, Hard stiff clay, hard red earth, shales,murram, gravel, stoney earth and earth mixed with small size boulders, soft disintegrated rock,laterite,soft rock or kankar not requiring blasting including clearing,levelling the site etc., complying with standard specification and as directed by the departmental officers (Narrow excavation)

Supplying and filling in foundation, basement, etc with filling M.sand in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Providing and laying Plain Cement concrete of M10 grade (Design Mix) using 40mm HBGS jelly (well graded) confirming to IS specified grading (to produce concrete of the specified grading and characteristic strength of 10N/mm2 at 28 days) and mixing the ingredients by mixer machine including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, compacting and finishing the surface, watering, curing etc.,complete complying with standard specifications and as directed by the departmental officers for( FOUNDATION BASE COURSE)

Providing steel centering for cement concrete block,column,footing, pedestal, plinth beam, grade beam etc., which require nominal strutting etc., using MS sheets 10 gauge thick of size 90cm x 60cm stiffened with MS angle of size 25mm x 25mm x 3mm laid over silver oak joists of size 10cm x 6.5cm spaced at 90cm c/c duly supported and removing the strutting after specified period without damaging the concrete laid complete complying with standard specification and as directed by the departmental officers. Scaffolding and cantering charges for the structural components is including the cost and conveyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specifications and as directed by the departmental officers.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29m height for vertical / sloped surface as detailed below with all cross bracings using mild steel sheets of size 90cm x 60cm and 10BG Stiffened with welded mild steel angle of size (25x25x3)mm laid over silver oak joists of size 10x 6.5cm spaced at about 90cm c/c and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75cm c/c etc.,complte complying with standard specifications and as directed by departmental officers.Scaffolding and centering charges for the structural components is uncluding the cost and conveyance of all materials to the site including all labour charges and incidental charges etc., complete (For Above Ground level)

Providing and placing Plain Cement Concrete M15 grade Design mix using HBGS aggregate (Downgraded) of nominal maximum size 60% of 40mm and 40% of 20mm and down graded conforming to I.S specified grading (To achive the specified characteristic strengh of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strengh specified in the approved drawing and specifications, as per the direction of the engineer in charge of works and complying with technical specifications for RETAINING WALL FOOTING

Plain Cement concrete of grade M 20 with well graded aggregates and the maximum nominal size of coarse aggregate of 40mm and down grade of nominal maximum size 60% of 40mm and 40% of 20mm and down graded conforming to I.S specified gradingto IS specified grading and mixing by mixer machine (to produce concrete of the specified characteristic strength of 20N/mm2 at 28 days) including dewatering by bailing/ pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating compacting, and finishing the surface watering curing, for various depth and height below and above ground level so as to attain the profile and strength specified in the drawings as per the direction of the Engineer and complying with standard specification for RETAINING WALL

Plain Cement concrete of grade M 20 with well graded aggregates and the maximum nominal size of coarse aggregate of 20 mm IS specified grading and mixing by mixer machine (to produce concrete of the specified characteristic strength of 20 N/mm2 at 28 days) including dewatering by bailing/ pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating compacting, and finishing the surface watering curing, for various depth and height below and above ground level so as to attain the profile and strength specified in the drawings as per the direction of the Engineer and complying with standard specification for CANAL BED PORTION

Earth work in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 3km deploying earth moving machinery and tippers including benching, formation of bunds, breaking clods, sectioning etc., complete complying with standard specification and as directed by the Departmental Engineers.

Supply and fabricating of steel required for all RCC works involced in the schedule including cost of steel ,cost of fabrication,labour charges for cleaning the rods straightening, cutting, bending,tying grills including over lapping to the required length wheenever necessary and placing reinforcement in position as specified in the drawing including cost of binding wire provision for spacer bar cover blocks and all other incidental charges etc., directed by the departmental officers.

Supplying and fixing of bituminous filler pad 15mm thick pad for expansion joints in Plain Cement Concrete and Reinforced Cement Concrete walls and slabs etc., for required depth complete complying with standard specifications as directed by the departmental officers.

Supplying and fixing PVC Water Bar 150mm wide with singlel bulb in position including cost and covenyance of all materials to the work site complete complying with standard specifications and as directed by the departmental officers.

Supplying and fixing in position of seepage pipes having working pressure of 6 Kg/cm2 of 63mm dia PVC pipe of required lengths for retaining wall including cost and coveyance of all materials to the work site etc.and as complete complying with standard specifications and as directed by the departmental officers.

Providing Filter media arrangements to the weep holes in the rear side of retaining walll for a size of 45cmx45cmx60cm and filling with 20mm metal of 30cm thick in Ist layer and 40mm metal of 30cm in IInd Layer the rate is including cost of metals etc complete complying with standard specification and as directed by the Departmental officers.

Plastering with Cement mortar 1:4 (one cement and four M-sand) 20mm thick including finishing and curing etc., complete complying with standard specification and as directed by the Departmental officers.

GST at 18%

Thavam Construction (BID ID -1179251)