Rehabilitation of Watrap Big Tank at Watrap Village of Watrap Taluk in Virudhunagar District.

Amount

Clearing the light jungle and disposing of the same as directed by the Engineer in charge of the Works and as per technical specification

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 0 to 100 metre deploying earth moving machineries and tippers including benching, formation of bunds, breaking clods, sectioning etc. complete including extra watering and compaction of earth fill layers to specified density of 95% of proctor density through deployment of appropriate compaction equipment (standard 8-10 ton power roller; short width drum vibratory power roller; vibratory power roller, complete complying with standard specification and as directed by the Departmental Officers.

Earth work deploying earth moving machineries for desilting channel and forming bund on either side depositing the earth on banks including jungle clearence etc., complete complying with standard specification and as directed by the Departmental Officers.( more than 10m)

Dismantling, clearing away and carefully stacking material useful for reuse for any thickness of brick or stone masonry in Cement Mortar walls under 3 (Three) metres high complying with standard specification and as directed by the Engineer.

Dismantling, clearing away and carefully stacking material useful for reuse for any thickness Plain Cement concrete complying with standard specification and as directed by the Engineer

Dismantling, clearing away and carefully stacking material and without disturbing nearby structure useful for reuse for any thickness R.C.C etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Chipping of concrete & roughening the surface

Earth work excavating and depositing on bank with a initial lead of 10 m & initial lift of 2 m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size of boulders hard gravelly soil including refilling the excavated earth as directed by the Engineer in charge and watering and consolidation of earth fill layers throw appropriate compaction equipment complying with standard specification and as directed by the departmental officers. (cut open bund) SS 20B

Refilling the excavated earth in layers not exceeding 23cm thickness and watering to OMC (Optimum Moisture content) and compaction of each layer to 95% of proctor Density through deployment of appropriate compaction equipment (8-10T power roller) vibratory power roller of short width ( 0.90m width drum) power roller or vibratory power roller/fuel operated or electrically operated, vibratory plate compactors, ensuring compaction of designed bund section including side slopes etc., complete complying with standard specification and as directed by the Departmental Officers.

Earth work excavation for foundation in all kinds of soils and sub soils except hard rock requiring blasting full depth as may be directed and depositing the surplus earth in places shown by the Engineer in - charge of work and leveling the same with all leads and lifts including shoring, strutting, shuttering, baling out water wherever necessary and refilling the sides of foundation with excavated earth in layers of 15cm thick well rammed and consolidated etc. complete, complying with technical specifications and drawings as directed by the Engineer in - charge of work. (Specification No.4.2.2.)

Supplying and filling with CS sand of each layer not more than 15 cm thick including consolidation etc complete and as per the technical specifications directed by the Engineer in charge of the works For sluices, weirs sand retainig wall etc., complete complying with standard specification and as directed by the Departmental Officers.

Providing and placing in position of plain Cement concrete of grade M15 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 40mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/mm2 at 28days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary; laying the concrete in layers of not exceeding 15 cm thick and in bays; compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength specified in the approved drawing & specifications etc., complete complying with standard specification and as directed by the Departmental Officers.

1.50m depth BGL & 1.00m height AGL

1.50m depth to 4.50m below BGL

Providing Steel centring for RCC Slabs, beams or plain surfaces including strutting upto 3.29 m high using MS sheets, 10 guage thick of size 90cm x 60cm, Stiffened with Ms angles of size 25mm x 25mm x 3mm laid over silver oak joists of size 10 cm x 6.5 cm spaced at 90 cm c/c and supported by casurina props of 10 cm to 13cm dia spaced at 75 cm c/c and removing the centring and shuttering after specified period without damaging the concrete laid, etc., complete complying with standard specification and as directed by the Departmental Officers.

Centering without strutting

Centering upto 3.29m height

Centering above3.29m to 4.29m height

Centering above4.29m to 5.29m height

Circular Centering upto 3.29m height

Circular Centering 3.29m to 4.29m height

Circular Centering 4.29m to 5.29m height

Providing Steel centring for RCC Slabs, beams or plain surfaces including strutting upto 1.00 m high using MS sheets, 10 guage thick of size 90cm x 60cm, Stiffened with Ms angles of size 25mm x 25mm x 3mm laid over silver oak joists of size 10 cm x 6.5 cm spaced at 90 cm c/c and supported by casurina props of 10 cm to 13cm dia spaced at 75 cm c/c and removing the centring and shuttering after specified period without damaging the concrete laid, etc., complete complying with standard specification and as directed by the Departmental Officers. (For Retaining walls and Sluices) With strutting for field bothies

Providing and placing in Position of Plain cement concrete of grade M15 using hard broken stone aggregate of maximum nominal size of 20mm 40% and 40mm 60% to IS specified grading mixing by mixer machine including dewatering the placement site,laying the concrete in layers and in bays vibrating,compacting and finishing the surface with all leads and lifts watering curing to attain the profile and strength as specified in the drawing for various depth and height below and above ground level etc complete as directed by the Engineer in charge of work complying with the standard specification (with vibration).

1.50m BGL & upto 1.00m AGL ht

1.00m to 4.50m AGL ht

Above ground level 4.50m ht

Providing and placing Plain Cement Concrete M15 grade using crusher broken hard coarse aggregate (well graded) of nominal maximum size of 20mm and downgraded to I.S specified grading (To achieve the specified characteristic strength 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 concrete in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete complying with standard specification and as directed by the Departmental Officers.(Field Channel Wearing coat) (with out vibration)

Providing and laying in position of Standardised Concrete Mix M25 in accordance with IS 456-2000 using 20 mm down graded hard broken granite stone jelly for all RCC items of works with minimum cement concrete of 350 kg/m3 and maximum water cement ratio of 0.55 with about (5 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.30 cum) 5156 kg of 10 - 12 mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 25N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating, compacting and finishing the surface water curing so as to attain the profile and strength specified in the approved drawing and specification and excluding the cost component of providing rigid and smooth centering and shuttering wherever necessary for various depths below ground level and various heights above ground level as per the direction of the Engineer complete in all respect but excluding the cost and placing of reinforced grill in position complying with standard specification

Providing and placing in position of plain Cement concrete of grade M20 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 20mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20 N/mm2 at 28days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary; laying the concrete in layers of not exceeding 15 cm thick and in bays; compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength specified in the approved drawing & specifications etc., complete complying with standard specification and as directed by the Departmental Officers. without vibration Wearing coat Sluice & Weir) (with out vibration)

Plastering with Cement Mortar 1:4 (One cement and Four sand), 20mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers.

Pointing with cement mortar 1:3 (One cement and three sand) for flush pointing in Random Rubble masonry complying with standard specification.

Supplying, fabricating & placing in position of mild steel or ribbed for steel grills for Reinforcement of RCC works including cost of steel and binding wire and labour charges for decoiling, cutting, bending and tying the grills complete complying

Providing and laying in position of Standardised Concrete Mix M20 in accordance with IS 456-2000 using 20 mm down graded hard broken granite stone jelly for all RCC items of works with minimum cement concrete of 325 kg/m3 and maximum water cement ratio of 0.55 with about (5 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.30 cum) 5156 kg of 10 - 12 mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating, compacting and finishing the surface water curing so as to attain the profile and strength specified in the approved drawing and specification and excluding the cost component of providing rigid and smooth centering and shuttering wherever necessary for various depths below ground level and various heights above ground level as per the direction of the Engineer complete in all respect but excluding the cost and placing of reinforced grill in position complying with standard specification

1.50m BGL & upto 1.00m AGL ht

1.00m to 4.50m AGL ht

Supplying and fixing cutstone of roughly dressed with cement mortar 1:3 including labour charges for fixing etc.. Complete.

Fabricating, supplying and erection of Screw Gearing steel shutters of size 0.85 m x 1.05 m with consists of skin plate made out of 8 mm thick mild steel plate and horizontally stiffened with 100 mm x 50 mm x 6 mm steel channel (ISMC) at an interval of not more than 0.5 m and vertical stiffeners made out of same section at an interval not more than 0.6 m and provided with 8 mm thick mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Groove Channels of ISMC 100mmx100mmx10mm mild steel angle for required height up to 2.50 m including welding hold fast of size 40 mm x 40 mmx 6 mm mild steel angle 3 numbers on both sides. Providing Sill Beam of 150mm x 80mm x 6mm, 0.85 m length and providing of 63 mm screw rod made of mild steel duly machined and fully threated to suite the Head set assembly with required height up to 4.80 and required holes. Fixing the screw rod to the shutter gusset plate with required bolts and nuts in proper alignment to the Head Set. Providing of Top Beam made up of 200 mm x 100 mm x 6 mm (ISMB 200) for the length of 1.80 m duly drilled to suite the Head Set assembly with required bed bolts made out of 25 mm mild steel round rod duly threated with suitable anchorage arrangements to the height of 0.6 m with necessary fish plate made out of 16 mm mild steel plate of size 0.2 m x 0.3 m 2 numbers with require bolts. Providing Head set assembly medium duty with Hexagonal nut (approximate 70 kg) made up of cast iron including moulding, machining and Hexagonal nut threaded to suit screw rod provided with thrust bearings for smooth operation. The whole shutter assembly should be painted with two coats of anti-corrosive black paint over one coat of red oxide primer paint.Erecting Shutter assembly by Durky post and Chain block. The rate is inclusive of all materials, labour charges including Lathing, Drilling, Welding, Gas cutting, Hydraulic bend removing of M.S. rod, hire charges of Crane and also inclusive of cost of covering plate, Foundation bolts, all bolt and nuts, conveyance to this site, Loading and unloading charges, Grease packing, Lubricating oil, Operating key, Locking arrangement and checking the Shutter operation etc., complete as directed by the Departmental Officers. The rate is Excluding GST.

For sluice size of shutter 0.85m x 1.05m

Providing and fixing weep holes of 110mm dia pvc pipes of working pressure 4kg/m2 to a required length for protection wall, abutment and wing wall including cost of conveyance of all materials to work site including cost of labour charges for 90cm spherical back fill arrangements with 110mm dia and 20mm size hard granite broken stone charges at the peripery, the labour charges for fixing and to drain the back fill etc., complete complying with the standard specifications and as directed by the departmental officers.

Random rubble masonry in cement mortar 1:4 (one cement and four sand) mixed using mixer machine using new hard rough stone and bond stones for various depth and height below and above ground level with all leads and lifts including simultaneous flush pointing the exposed surface with same mortor and with all incidental charges such as scaffolding and dewatering by baling pumping and diverting water wherever required finishing curing complete so as to attain the profile and strength in the drawing and specification including providing shrinkage ,construction joint for closing the days work at intervals specified whereever required and as directed by the Engineer complete complying with specification

using Old stone 60%

using New stone 40%

Gravel packing 15cm thick for cement concrete block revetment or apron including stacking watering and consolidation etc., complete complying with standard specification and as directed by the Departmental Officers

Rough stone dry packing for revetment and apron using hard granite stones obtained from approved sources including the cost of new wedges for filling the gaps etc., complete complying with standard specification and as directed by the Departmental Officers.

using Old stone 60%

using New stone 40%

Drilling holes 50mm dia in existing wall for placing anchor rods etc. complete

Grouting the holes of 50mm dia with w/c ratio of 0.33 in the existing anicut body wall provided at a spacing of 80 cm c/c in a staggered manner in the vertical surface for fixing anchor rod of 16 mm dia RTS of 1m length in a such position that 60 cm length embeded into the masonry wall at a downward inclinations of 5 degree to horizontal and 40 cm length projected and bend out side the wall including cleaning the drilled hole fixing the rod and other incidential charges etc.

Supplying and fixing of Head Set Assembly Light duty with hexagonal nut (Approximate 70 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 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.

A RAJADURAI (BID ID -1363726)