TCMC-Providing Deep Borewell and Construction of Mini Over Head Tank at Ward No.16 Zone-2 at TCMC

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Supplying and filling in foundation and basement with filling sand in layers of not more than 15cm.thick well rammed watered and compacted -1m3 etc., complete complying with standard specification.

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying water carrying with all leads of good water compacting and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Suppling and fabricating and placing in position MS (or) R.T.S. bar for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors.

Charges for conducting Geophysical survey etc direction by the Departmental officers

Drilling of 150mm dia bore wells in over burden soil including labour charges for insertion of casing pipes

Supply of 150 mm (Casing Shollow depth) 1.2 PVC Casing pipe with exces duty as per IS 12818/1992 (TWAD Rate 2021-22 Page No19)

Drilling of 150mm dia borewells in hard rock areas anywhere in Tamil Nadu including trasportion to the worksite in hard rock areas and developing the borewells

Labour charges for inserting casing pipes assembly (With slot or without slot) in the drilled hole including welding the joint etc., complete and supplying and packing the annular space with pebbles of size and quality as approved by the Executive Engineer (TWAD Rate 2021-22 Page No227)

Centering for soffits of RCC slabs of plane surface like lintels, beams ,etc.,including strutting 3m high using mild steel sheets of size 90cm X 60cm X and B.G 10 stiffened with M.S angles of size 25mm X 25mm X 3mm laid over silver Oak (C.W) joists of size 10cm X 6.5cm (spaced at about 90cm c/c )and supported dy casurina props of 10cm to 13cm dia (spaced of 75cm C/C) complying with standard specification and directed - 10 m 2 (P & D)Data 38

Column

Plinth Beam

Slab Bottom

Reinforced Cement concrete 1:1.5 :3 (one cement,one and half sand & three course aggregate) using 20mm ,gauge hand broken/ and broken granite stone for all RCC items of works excluding centering shuttering and cost of reinforcement but including curing etc.,complete and also including fixing fan clamps and fixtures in rcc works wherever necessary as directed by departmental officer etc., complete.

Brick work in CM 1:5 (one cement & five sand) using II nd class ground moulded bricks of size 9"X43/8"X 2 3/4" including finishing, curing,etc., complete complying with standard specification

Plain Cement Concrete 1:1.5:3 (one cement, one and half fine aggregates and three coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying water carrying with all leads of good water compacting and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Plastering with cement mortar 1:3,10 mm ,thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications (S.I.306)

Supply and delivery 15 x 125 of clear water vertical wet type submersible pump conforming to IS 8034/2002 and as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continues rated two pole suitable wet type vertical squirrel cage induction motor suitable for operation in AC single phase 230 V+/- 10 %,50 HZ +/-5 %

Supply and delivery of 2 HP capacity of single phase submersible pump set panel board with two level gourd with auto start duty 20lpmx125 Mt head, including cost and conveyance of material etc., complete as standard specification as per TWAD Schedule of rate 2015-16 Page No.112

Supply and fixing of following PVC, GI and Electrical Accessories including all necessary materials and labour charges etc complete

HDPE pipe 50mm/ 38mm

32mm SS Nipple

32mm GI X Nipple

32mm GI Bend

32mm MS Clamp

32mm PVC Pipe

20mm PVC Pipe

32x20mm PVC Reduser

20mm GI Pipe

20mm GI Tee

PVC Tap

2000 Ltr. Capcity HDPE Water Tank

16mm Nylon Rope

32Amps MCB

32 Amps Fuse Unit

2 of 4 Sqmm wire SD 45

2.5 Sqmm Flat Cable

Labour charges for erection of Submersible pumpet in bore well/ Open well including fixing submersible cable with proper clamps upto to the starter to required depth and also fixing of riser pipes to the required depth calves erection clamps , pusher gauge upto the exterior wall of pump room and erection of panel Board consisting of TPIC switches, voltmeter, Ammeter, Capacitor single preventer and laying and jointing the cable and twin earthling as per IE rules including providing bed block etc., and operating the pumps and trial run 10 days including singing of completion of reports as required by EB authorities TWAD Board Schedule Item No.17C , Page no.230 2015-16

Painting 2 coats with approved cement paint over cement plastered wall surface, ceiling and other new surface and including cleaning, preparing the surface and curing etc., complete.

Construction of inspection chamber of size 60 cm x 60 cm x 60 cm with 75mm thick RCC loose slabs covering in C.M. 1:2:4 mix including necessary reinforcement and earth work excavation for foundation wth 23 cm thick concrete bed using 40mm B.J. concrete in CC 1:4:10 for foundation brick work in CM 1:6 for chamber as directed during theexecution including plastering with CM 1:3, 12mm thick, benching and channelly etc. complete for 1 No.