Construction of 60000 litres OHT at Ward No.06 Thokkavadi in Chengam Town Panchayat CGF

Amount

Earth work excavation & depositing on bank with an initial lead of 10 metre & initial lift of 2 metre in Hard shift clay, stiff block cotton, hard red earth shales, murrum, gravel, stoney earth, and earth mixed with small size boulders and hard gravelly soil (SS 20B) for foundation including shoring, strutting, baling out water providing danger light wherever necessary depositing the surplus earth on bank and other incedential charges etc., complete and as directed by TWAD board Officers

First depth of 2m From 0 to 2 m below GL

In hard stiff clay, stiff black cotton soil, hard red earth, sales, murrams, gravel, stoney earth, earth mixed with small sized boulders and hard gravelly soil S.S.20B

For Column Footing

Base Slab for fixing MS ladder at GL

Total

Second depth of 1m

For foundation

Plain Cement Concrete 1:4:8 (one cement, four sand and eight hard granite broken stone of 40mm size ISS gauge) for foundation and footing including mixing, placing, ramming ,finishing curing etc. complete in accordance with standard specification and as directed by the TWAD Board Officers.

For footing

Reinforced Cement Concrete Mix M30 grade using 10mm & 20mm Hard blue granite Broken stone (machine crushed) excluding the cost of RTS rods for reinforcement and centering, strutting, shuttering but including cost of all materials mixing, laying, Vibrating the concrete with mechanical vibrators, ramming, consolidating, finishing and curing etc., Complete and as directed by the TWAD Board Officers.

For items 1.5m to 4.5m below GL

FOOTING

Rectangular Portion

Total

For items 0 to 1.50m below GL

For column upto G.L.

For GL brace

Base Slab for fixing MS ladder at GL

Total

For items 0m to 4.5m above GL &1.00 m Above G.L

Columns

Brace No 1 at 2.665 m

Base Slab for fixing MS ladder at GL

Total

For items 4.50m to 7.32m above GL

Columns

Brace no 2 @5.53 m

Base Slab for fixing MS ladder at GL

Total

For items 4.50m to 7.32m above GL

Columns

Brace no 2 @5.53 m

Base Slab for fixing MS ladder at GL

Total

For items 10.98m to 14.64m above GL

Columns

For beam at 11.40m above GL

For floor slab at 11.66m above GL

For haunches from 11.85m to 12.00m

Sidewall

Base Slab for fixing MS ladder at GL

Total

For items above 14.64m & up to 18.30m from GL

Sidewall

For Roof Slab @15.45 to 15.68 m from GL

Deduction for manhole cover

For PVC cowl

Total

Supply and erection of steel centering, shuttering for soffits and sides including necessary supports and strutting for all RCC works using MS sheets of suitable size of BG10 stiffened with MS angle of size 25 X 25 X 3 mm for boarding laid over I type MS Truss of size 25 X 25 X 3mm about 90cm c/c and supported by 40mm GI pipes (Medium) spaced at 75cm c/c etc complete and as directed by the TWAD Board Officers.

PLANE SURFACES

Below G.L.

For Footing Side

For GL Brace bottom

For GL Brace sides

Base Slab for MS ladder - Sides

Total

ABOVE G.L. to 3.30m

For Ist Brace bottom @2.665 m

For Ist Brace Brace sides

Base Slab for MS ladder - Bottom

Beam Sides Inner

Beam Sides Outer

Beam Sides Edges

Base Slab for MS ladder - Sides

Roof slab bottom

Deduct for Manhole

For sidewall junction with Roof bottom

ADD Sides of manhole

Total

For IInd Brace bottom @5.53 m(up to 0.325m)

For IInd Brace Brace sides

Base Slab for fixing MS ladder - bottom

Base Slab for fixing MS ladder at GL

Beam sides inner

Beam sides outer

Beam sides edges

Total

For IIIrd Brace bottom @8.395m

For IIIrd Brace Brace sides

Base Slab for fixing MS ladder - bottom

Base Slab for fixing MS ladder at GL

Beam sides inner

Beam sides outer

Beam sides edges

Total

Floor beam inside

Floor beam outside

Bottom of floor slab including working space

Deduct Column junction

Base Slab for fixing MS ladder - bottom

Beam sides sides

Beam sides inner

Beam sides outer

Beam sides

Total

Curved Surface

Total

Side wall outer

Side wall inner

Total

Side wall outer

Side wall inner

Total

Side wall outer

Side wall inner

Haunch (slanting)

Roof Slab sides above platform

Total

Square column

Square Column Below GL and upto 3.30m above GL

Column 0 to 3.3m ht. above G.L and below GL

Deduct brace junction

Deduct for Lader beam

Total

3.31m to 4.30m ht

Ground level to 3.30 m

Deduct brace @2.665

Total

Total

Deduct brace @5.53 m

Total

Total

Total

Deduct brace @8.395m

Deduct for Lader beam

Total

Total

Total

Total

Painting two coats with approved cement paint over one priming coat of white cement over cement plastered wall surface and ceiling including cleaning preparing the surface and curing etc., complete (using cement paint of colour as approved by the Departmental officer) and as directed by the TWAD Board officers.

For column

For Braces-3 Nos -(0.40+0.40+0.30+0.3=1.40m)

Deduct column&Brace junction 3Nos

Floor beam outer face

Inner face

Floor slab bottom

Floor slab sides

Floor slab top

Side wall outer

Roof slab sides

Roof slab sides offset

Add for Standing Plat Forms

Bottom Plat Forms

Side Beam Outer

Side Beam Inner

Total

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc.( The steel should conform to the relevant ISspecification and supplied with test certificate Fe. 415 grade as per IS specification No.1786/1985 and as amended from time to time) delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete.and as directed by the TWAD Board officers.

Supply delivery and fixing of staircase with M30 grade concrete for landings, MS ladder of 0.45m wide using 50x50x5mm MS angles for sides and steps at 0.30m c/c, with GI pipe handrails using 32mm GI pipes for railings and verical support at 0.45m C/c, MS flats (Size 40mm x 5mm ) for horizontal ties at 0.3m c/c and at bottom with Anchor fastener bolts of size 12mm x 75mm including cost of materials labour for fabrication of handrails fixing, painting etc., complete.

Providing and fixing of RCC inner access ladder in RCC 1:11/2 :3 (one cement,one and half sand and three aggregate) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centring,shuttering charges, mixing concrete,curing etc. to required height and clear width of 45 cm consisting of 2 nos. of vertical post of 10 cm x 15 cm and step slab of 25mm x 25mm etc.complete and as directed by TWAD Board Officers.

Providing 100mm AC vent cowl arrangements mosquito proof nylon net and as directed by TWAD Board officers

Pipe connection arrangements for inlet,outlet,scour and overflow etc. including cost of pipes,specials,valve,labour charges for lifting, aligning, cutting, threading ,fixing and painting of GI pipes with two coats of approved quality enamal paint etc. complete as detailed below.

65mm GI pipes for over flow & rain water harvesting pipe

80mm GI pipes for scour pipe

80mm GI pipe for delivery pipe

90mm PVC Threaded coupler

63mm PVC Threaded coupler

65mm dia GI Tee

65mm dia GI bend

65mm dia GI bend (short)

65mm GI coupler

65mm GI union

65mm GI Elbow

80mm GI union

80mm GI Elbow

65mm GI Tee

65x50mm GI reducer

75mmx63mm PVC reducer

65mm GM gate valve

80mm GM gate valve

63 mm PVC 4Ksc Pipe

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers As per item 1(a) + 1(b)

Less item 2,3 & 4A, 4B

Total

Labour charges for GI pipe connection to the OHT, for inlet, outlet, overflow and scour arrangements including cutting and threading, earth work excavation & refilling.

Providing Hand rails over the Roof slab by using 32 mm GI Pipe with 40mm x 6mm MS Flat and fixied with 12mm dia Fastner Bolt 75mm long and as directed by TWAD Bd officers

M. Ramajayam (BID ID -1243296)