Rehabilitation of existing Anicut across Pennaiyar River between Enatherimangalam Village in Panruti Taluk in Cuddalore District and Dalavanur Village in Vilupuram Taluk in Vilupuram District.

Amount

Clearing scrub jungle etc, complete complying with standard specifications and as directed by the departmental officers.

Dismantling plain cement concrete complete complying with standard specification and as directed by the departmental officer.

Dismantling, clearing away and carefully stacking materials useful for re-use for any thickness of walls of stone Masonry in cement mortar walls under 3m high etc.complete complying with standard specification and as directed by the departmental officer.

Dismantling Reinforced cement concrete complete complying with standard specification and as directed by the departmental officer.

Breaking, removing and stacking for pre-measurements of existing hard rock to the required depth by cutting, drilling, breaking by using suitable special type cutting equipments with heavy breaker / diamond saw cutting machines / wire type saw machine with diamond impregnated beads wire / rock disintegrating chemicals / rock splitter / mounded breaking, wedging, chiseling trimming to proper shape where blasting is prohibited and without any environmental hazard, any vibrations and disturbance to the nearby any existing structures. The rate includes mobilizing transferring from one place to another / re-installing from one place to another / re-installing with all accessories & operating all the required materials, tools & plants viz suitable crane & drilling holes on the existing rock strata connecting the diamond cutting rope to the machine and also lifting, loading, conveying tackles along with the required labourers, electricity / DG power or Generator, watering and excavating the rock portion and depositing the same at a distance from the excavated area away from the work without obstruction to the work as specified by the departmental officers with all leads & lifts and traffic, including all incidental charges, fuel charges to all machineries, hire charges, crew charges etc complete complying with standard specifications and as directed by the department officers.

Earth work excavation in all soils and sub soils to full depth directed by the departmental officers except hard rock or medium rock requiring blasting by deploying earth moving machinery including jungle clearance levelling etc. and conveying with a lead of 1 Km excavated soil to the low lying area or dumping yard including levelling etc. complete complying with satandard specifications and as directed by the departmental officers.

Earth Work Excavation for foundation in all soils and sub soils and to full depth as may be directed by the Departmental Officers except hard rock requiring blasting including shoring, strutting and baling out water wherever necessary and refilling the sides of foundation with excavated soil in layers not exceeding 15 cm thick, well rammed and consolidated and depositing including all initial leads and initial lifts, etc., complete complying with standard specifications and as directed by the departmental officers (Narrow Excavation).

Providing and placing in position of plain cement concrete M 10 grade using graded hard blue granite broken stone jelly of 40 mm size, using river sand, mixing with mixer machine including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers

For works upto 1.5 M depth below ground level and upto 1 M height above ground level.

For works above 1.5 to 4.5 M below ground level.

For works above 4.5 to 9 M height below ground level.

Providing and placing in position of plain cement concrete M 15 grade using graded hard blue granite broken stone jelly of 60% of 40 mm size and 40% of 20 mm size, using river sand, mixing with mixer machine and laying in layers including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by using vibrators, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers

For works upto 1.5 M depth below ground level and upto 1 M height above ground level.

For works above 1.5 to 4.5 M below ground level.

For works above 4.5 to 9 M height below ground level.

For works above 1.0 to 4.5 M height above ground level.

For works above 4.5 to 9 M height above ground level.

Providing and placing in position of plain cement concrete M 15 using hard blue granite broken stone jelly of size 20 mm, using river sand, mixing with mixer machine including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by using vibrators, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers

For works upto 1.5 M depth below ground level and upto 1 M height above ground level.

For works above 1.5 to 4.5 M below ground level.

Supplying and laying of Ready Mix Concrete for the grade of concrete M20 having characteristic strength not less than specified in the Is 456 - 2000 using Ordinary portland cement with minimum cement content of 240 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20mm down grated hard blue granite broken stone jelly and fine aggregate without fly ash as per IS 383 - 1970 (2007) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 (2004). The initial & final setting time confirming IS 12269 - 1987 (2004) with maximum temperature of concrete at the time of placing should not exceed 320C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing including the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in charge, laying, compacting, consolidation by using needle vibrators, finishing the surface, watering, curing, testing charges as per IS 456 - 2000, 4031 - (part 3 & 6) / 1988 (2005) & (part 2) / 1999 (2004) and 516 / 1959 (2004), 4926 - 1976 (1990), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering, shuttering and excluding cost of reinforcement grills placed in position etc, complete complying with standard specification and as directed by the departmental officers as follows(RCC).

Supplying and laying of Ready Mix Concrete for the grade of concrete M25 having characteristic strength not less than specified in the Is 456 - 2000 using Ordinary portland cement with minimum cement content of 300 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20mm down grated hard blue granite broken stone jelly and fine aggregate without fly ash as per IS 383 - 1970 (2007) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 (2004). The initial & final setting time confirming IS 12269 - 1987 (2004) with maximum temperature of concrete at the time of placing should not exceed 320C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing including the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in charge, laying, compacting, consolidation by using needle vibrators, finishing the surface, watering, curing, testing charges as per IS 456 - 2000, 4031 - (part 3 & 6) / 1988 (2005) & (part 2) / 1999 (2004) and 516 / 1959 (2004), 4926 - 1976 (1990), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering, shuttering and excluding cost of reinforcement grills placed in position etc, complete complying with standard specification and as directed by the departmental officers as follows(RCC).

Providing launching apron using new jeddy stone of size not less than 300 mm thick and weight not less than 40 Kg including the cost of new wedges for filling the gaps, finishing etc complete complying with standard specifications and as directed by the departmental officers

Supplying and laying with hard blue granite broken stone jelly of varying of size from 80 mm, 63 mm, 50 mm, 40 mm, 25 mm, 20 mm, 12 mm and 10 mm in equal propotions for formation of filter drains and filter bed as shown in drawing etc., complete complying with standard specifications and as directed by the departmental officers.

Supplying and filling with clean river sand in layers of not more than 15 cm thick for well watered, rammed and consolidated etc., complete complying with standard specifications and as directed by the departmental officers.

Gravel packing in gaps between cement concrete blocks including cost of gravel and filling charges to full depth and stacking for premeasurements etc complete complying with standard specifications and as directed by the departmental officers

Supplying and erecting centring for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC slab rectangular beam or L beam lintels and bed blocks, stairs and covering slabs landing beam canopy etc, with all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 10 cm x 6.5 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, etc., complete complying with standard specifications and as directed by the departmental officers

0 to 0.90 M height

0 to 1.80 M height

0 to 2.70 / 3 M height

3.00 to 4.00 m ht

4.00 to 5.00 m ht

5.00 to 6.00m ht

6.00 to 7.00 m ht

7.00 to 8.00 m ht

8.00 to 9.00m ht

9.00 to 10.00 m ht

10.00 to 11.00 m ht

11.00 to 12.00 m ht

Supplying and erecting centering for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC works etc, with all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 10 cm x 6.5 cm spaced @ about 90 cm C /C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, and removing the same without any damages etc., complete complying with standard specifications and as directed by the departmental officers. (Horizontal Centering).

Supply fabricating and placing in position Mild Steel or Ribbed Tor Steel of various dia for all RCC works as per design given including cost of steel, binding wire and labour charges for cutting, bending, laying in position and tying with binding wire, etc. complete complying with standard specification and as directed by the departmental officers.

Supplying and placing in position of plain cement concrete blocks of size 1.50x1.50x0.90m of M 15 grade concrete using hard blue granite broken stone jelly of size 20 mm, using river sand, mixing with mixer machine and laying in rows including dewatering wherever necessary, compacting, consolidation by using vibrators, finishing, watering, curing including the cost of erecting and centering including necessary support for plain surfaceses for concrete block of size 1.50 m X 1.50 m X 0.90 m using MS sheets of size 1.50 m X 0.90 m of 10 gauge stiffened with MS angle of size ISS 25 mm X 25 mm X 3 mm supported by MS flats of size 25 mm X 3 mm, conveyance to site with all labour charges etc. complete complying with standard specifications and as directed by the departmental officers

Providing and placing in position of weep holes for retaining wall using 110 mm Dia, PVC pipe heavy duty (PVC Finolex) 4 kg/cm2 including cost of all materials, labour charges complete complying with standard specifications and as directed by the departmental officers.

Supplying and Fixing PVC Water Bar 150mm wide with Singlel Bulb as directed by the departmental officers

Dewatering using upto 7.50 HP diesel engine pumpset including higher charges cost of disel, engine oil, Pump operator, Labour charges, conveyence of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, Supplying and erection of Screw gearing steel shutters of size 3.30m x 2.30m consist of skin plate made out of 12mm thick mild steel plate and horizontally stiffened with 200x100mm ISMB 150 at an interval not more than 0.50m and vertical stiffeners made out of 100x50mm mild steel channel at an interval not more than 0.60m and end vertical made up of 100x50mm mild steel channel 2 Nos on both sides, provided with 100mm dia steel Rollers 2 Nos on both sides with 100mm dia MS Rollers 2 Nos on both sides with 2" dia Gun metal bushes and 1" dia roller pin for smooth operation. The shutter lifted with 12mm thick mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Providing leakage arrest pipe arrangements made with 75mm dia B-Class G.I Pipe at both ends for required height hanged in chain from the top of the shutter. The bottom seal made up of 75x10mm rubber seal covered with 65x8mm steel flats fastened with required with rust free bolts and Nuts. Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent. Dismantling the eroded shutter and shuttering arrangements by using necessary gas cutting equipments. Erecting the new shutter and the shuttering arrangements in the vent in proper position by using necessary hoisting equipments. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red Oxide Primer. The rate including cost of materials consumables, labours power charges, conveyance charges for all equipments required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and warranty for 5 years etc., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, Supplying and erection of Screw gearing steel shutters of size above 2.60 mx1.00m width consist of skin plate made out of 10mm thick mild steel plate and horizontally stiffened with 150x75mm ISMB 150 at an interval not more than 0.50m and vertical stiffeners made out of 100x50mm mild steel channel ISMC at an interval not more than 0.60m and provided with 10mm thick mild steel gusset plateof required size on both sides fastened with rust free bolts and nuts etc.Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent. Dismantling the eroded shutter and shuttering arrangements by using necessary gas cutting equipments Erecting the new shutter and the shuttering arrangements in the vent in proper position by using necessary hoisting equipments. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red Oxide Primer. The rate including cost of materials consumables, labours power charges, conveyance charges for all equipments required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and warranty for 5 years etc..complete complying with standard specifications and as directed by the departmental officers.

Providing new 3T capacity worm gear box assembly consist of cast iron top and bottom plates, worm nut made up of pig iron, worm shaft made up of EN8 steel rod and two numbers of thrust bearings. The top and bottom plates machined to suit the worm nut and shaft. The worm nut threaded inside to suit the 80mm dia screw rod and the outer side formed with helical teeth cutting to suit the worm shaft. The worm shaft machined to the required shape and size and provided with helical teeth to suit with the worm nut.The assembly fixed with two numbers of thrust bearing one on top and another on bottom of the worm nut and fastened with required bolt and nuts. The operating key made with 80mm square rod shaping with wire cutting machine and welded with operating handle made up of 32mm dia steel rod for required length. The gear box is to be rest on the top of MS stand made up of 75x75x8mm MS angle and the top covered with 16mm thick MS plate and the stand fixed on the 150x75mm MS channel fixed over top of the beams in platform. The gear box align with the screw rod and fixed with required bolts nuts etc., complete and as directed by the departmental officers. Painting the hoisting arrangements with two coat of aluminium oxide paint over two coat of zinc rich primer The rate including cost of worm gear, cost of all materials required, labour charges, process charges like gas cutting, welding, machining, milling, labour charges for dismantling, loading, lifting, unloading, transport, erection, charges for equipment’s like derrick, chain pulley block, conveyance charges of to and fro of equipment’s and labours to the site including cost of trial operation of the Shutter, inclusive of all taxes, etc., complete and as directed by the departmental officers and warranty for 5years etc., complete complying with standard specifications and as directed by the departmental officers.

Supplying and fixing of Head Set Assembly Heavy duty with hexagonal nut (Approximate 120 Kg) made up of cast iron including moulding, machining and the hexagonal nut threaded to suit the Screw Rod provided with thrust bearings for smooth operation. Conveying and leading the head set assembly to the work site. Fixing the head set assembly to the top beam by using required rust free bolts and nuts in proper alignment including dismantling the existing damaged Head set assembly, conveying and stacking at section Store. The Head set assembly supplied with operating key and the both should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, labours, charges for wooden pattern, moulding and charges for labours and materials and warranty for 5 years etc, complete complying with standard specifications and as directed by the departmental officers.

Fabricating, supplying and fixing of 80mm dia Screw Rod made up of Mild Steel duly machined and fully threaded to suit the Head set Assembly and provided with required holes. Conveying and leading the screw rod to the worksite. Fixing the screw rod to the shutter gusset plate with required bolt and nut in proper alignment to the head set including dismantling the existing damaged screw rod, conveying and stacking at section store. The Screw rod should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, labours, charges for all fabricating and hoisting equipments, conveyance charges for labours and materials and warranty for 5 years etc., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, supplying and fixing of Shutter Groove Angle made up of 150x150x12mm Mild Steel angle for required height including welding hold fast of size 50x50x6mm Mild steel angle 3 Nos on both sides and conveying and leading the groove angle to the vents. Fixing the angle to the grooves in proper alignment including dismantling the existing damaged groove angles, conveying and stacking at section store. The groove angle should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, consumables, labours, charges for all fabricating and hoisting equipments, conveyance, petty civil works and warranty for 5 years etc., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, supplying and fixing of Shutter Groove Angle made up of 100x100x10mm Mild Steel angle for required height including welding hold fast of size 40x40x6mm Mild steel angle 3 Nos on both sides and conveying and leading the groove angle to the vents. Fixing the angle to the grooves in proper alignment including dismantling the existing damaged groove angles, conveying and stacking at section store. The groove angle should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, consumables, labours, charges for all fabricating and hoisting equipments, conveyance, petty civil works and warranty for 5 years etc., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, Supplying and fixing of Top Beam made up of 300x140mm (ISMB 300) duly drilled to suit the Head Set Assembly with required bed bolt made out of 25mm mild steel round rod duly threaded with suitable anchorage arrangements to a height of 0.90m with necessary Fish plate made out of 20mm mild steel plate of size 0.23x 0.30m 2 Nos to place the beam in position including petty civil works and painting with two coats of Anticorrosive black paint with one coat Red Oxide primer etc., including dismantling old beam conveying, loading and unloading and stacking to section store warranty for 5 years etc.., complete complying with standard specifications and as directed by the departmental officers.

Fabricating, Supplying and fixing of Top Beam made up of 200x100mm (ISMB 200) duly drilled to suit the Head Set Assembly with required bed bolt made out of 25mm mild steel round rod duly threaded with suitable anchorage arrangements to a height of 0.60m with necessary Fish plate made out of 16mm mild steel plate of size 0.20x 0.30m 2 Nos with required holes. Conveying and leading the top beam arrangements to the work site. Fixing the top beam arrangements at the top of the vent in correct position including dismantling the existing eroded top beam, conveying and stacking and the section stores. The top beam should be painted with two coats of AC black paint over one coat of Red Oxide primer. The Rate including cost of materials, labours, charges for all fabricating and hoisting equipments, cost of petty civil works conveyance charges for labours and materials and warranty for 5 years etc.., complete complying with standard specifications and as directed by the departmental officers.

Supplying and fixing of Bottom Flat Rubber seal with Mild Steel Flat plate throughout the length of Rubber seal and fitted with the existing structure by means of Mild Steel Washers, Nuts and Bolts including dismantling the old corroded bolts by cutting, removing old flats and hardened or damaged old rubber seals beam, then conveying, loading and unloading and stacking to section store, etc.., complete complying with standard specifications and as directed by the departmental officers.

Supplying and fixing of Side Music note rubber seal (Teflon claded) with Mild Steel Flat plate throughout the length of Rubber seal and fitted with the existing structure by means of Mild Steel Washers, Nuts and Bolts including dismantling the old corroded bolts by cutting, removing old flats and hardened or damaged old rubber seals beam, then conveying, loading and unloading and stacking to section store, etc.., complete complying with standard specifications and as directed by the departmental officers.

Construction of RCC cast-in-place guide wall 150 mm thick and 1200 mm deep with necessary steel reinforcements as required and specified by the Departmental Engineers with concrete of Grade M15 using 20 mm down graded HBGS metal) including cost of all materials lead, lift, labour, marking, earthwork excavation, shuttering etc., including dismantling guide wall, scrap value and disposing the dismantled guide wall after construction of Diaphragm wall as directed by the Departmental Engineer

Digging the diaphragm wall of 0.60 m thickness including trenching for diaphragm wall of 0.60 m thick in all kind of soil, rock, boulders, dewatering etc., upto the required depth using approved trenching method by mechanical grabs mixing supergrade Bentonite slurry and disposing the excavation materials beyond a lead of 1 Km, washing the trench upto required bottom level specified by adopting either successive panel or alternate method technique from a good continuous leak proof joints to the length and levels required by the Departmental Officers.

Construction of RCC cast-in-place diaphragm wall of 0.60 m thickness with M25 RMC concrete using Ordinar Portland cement 20 mm down graded HBGS metal) with minimum cement concrete of 300 Kg/m3 (including 10% excess cement for under water construction works as per IS 456-2000 and water cement ratio not exceeding 0.55, super plasterers as an admixture including cost of all materials, labour, lead, lift with placing the reinforcement cages including necessary duly approved welded reinforcemnt, with placing and removal of end pipe arrangement as designed and concreting using tremie pipe arrangement for Diaphragm panel upto required top level by adopting either successive panel or alternate method technique to from a good continuous leak proof joints to the length and levels required by the Departmental Officers including dismantling the overburden concrete over the subsurface dyke and conveying the same to the near by site and dumping the same in the low lying area as per schedule of rate S . No. 38 Moblilization & Demobilization of equipment (Excluding cost of reinforcement) and as directed by the Departmental Officers.

Construction of RCC cast-in-place diaphragm wall of 0.60 m thickness with M20 RMC concrete using Ordinary Portland cement 20 mm down graded HBGS metal) with minimum cement concrete of 240 Kg/m3 (including 10% excess cement for under water construction works as per IS 456-2000 and water cement ratio not exceeding 0.55, super plasticizers as an admixture including cost of all materials, labour, lead, lift with placing the reinforcement cages including necessary duly approved welded reinforcemnt, with placing and removal of end pipe arrangement as designed and concreting using tremie pipe arrangement for Diaphragm panel upto required top level by adopting either successive panel or alternate method technique to from a good continuous leak proof joints to the length and levels required by the Departmental Officers including dismantling the overburden concrete over the subsurface dyke and conveying the same to the near by site and dumping the same in the low lying area as per schedule of rate S . No. 38 Moblilization & Demobilization of equipment (Excluding cost of reinforcement) and as directed by the Departmental Officers.

Digging the diaphragm wall of 0.75 m thickness including trenching for diaphragm wall of 0.75 m thick in all kind of soil, rock, boulders, dewatering etc., upto the required depth using approved trenching method by mechanical grabs mixing supergrade Bentonite slurry and disposing the excavation materials beyond a lead of 1 Km, washing the trench upto required bottom level specified by adopting either successive panel or alternate method technique from a good continuous leak proof joints to the length and levels required by the Departmental Officers.

Construction of RCC cast-in-place diaphragm wall of 0.75 m thickness with M25 concrete using Ordinar Portland cement 20 mm down graded HBGS metal) with minimum cement concrete of 473 Kg/m3 (including 10% excess cement for under water construction works as per IS 456-2000 and water cement ratio not exceeding 0.55, super plasterers as an admixture including cost of all materials, labour, lead, lift with placing the reinforcement cages including necessary duly approved welded reinforcemnt, with placing and removal of end pipe arrangement as designed and concreting using tremie pipe arrangement for Diaphragm panel upto required top level by adopting either successive panel or alternate method technique to from a good continuous leak proof joints to the length and levels required by the Departmental Officers including dismantling the overburden concrete over the subsurface dyke and conveying the same to the near by site and dumping the same in the low lying area as per schedule of rate S . No. 38 Moblilization & Demobilization of equipment (Excluding cost of reinforcement) and as directed by the Departmental Officers.

Supplying and fixing Bitumen felt Pad of 15 mm thickness conforming to IS for joints including cost of all materials and labours etc complete complying with standard specifications and directed by the departmental officers

Removing and repacking old revetment and apron using old stones including cost of new wedges for filling the gaps etc., including the stacking the same with in 40m lead for premeasurements etc., complete complying with standard specifications and as directed by the departmental officers.

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 7.00 KM deploying earth moving machineries and tippers in layers of 15 cm thick including benching formation of bunds, breaking clods sectioning, extra watering, consolidation by power roller, hire charges and seigniorage charges etc., complete complying with standard specifications and as directed by the departmental officers.

Regrading the river bed deploying the heavy machinary like dozer on use hour basis including cost of hire charges fuel crew labour etc..complete complying with standard specifications and as directed by the departmental officers (D80 A12)

Vertical/inclined/invertical/horizontal drilling 25 mm dia, holes with diamond drill bit of EX size, using double tube core barrels in boulders, soft rock, hard rock, R.R. masonry, and R.C concrete, etc., to the required depth, including cost and transportation charges of all materials, pump, water lines, etc., to site, and erection of the frame with all leads and lifts including all labor charges and collection preserving core in gunny bags and as directed by the departmental offices and complying with standard specifications.

Washing and clearing the grout holes by means of sending water at different pressure until the return water turns out to be of the same character as the original water inserted without any foreign material complying with technical specification and as directed by the departmental officer.

Conducting field permeability test based on IS 5529 (Part 2) 2006 to evaluate the permeability of drilled borehole execution by pumping in various pressure method and preparation of report.

Grouting 25 mm dia grout holes of EX size using packer under required pressure including cost of cement and plasticized expanding grout admixture (chemicals). Grouting assembly higher charges and other charges of labor and machinery etc., complete complying with standard specification and as directed by departmental officers.

M/s. Ayyavoo Associates (BID ID -1454600)

SEA ROCK INFRASTRUCTURE (BID ID -1453934)