RECONSTRUCTION OF DAMAGED SEWERLINE, MANHOLE AND HSC IN COLLECTION SYSTEM (PACKAGE-I) FOR UGSS IN ARIYALUR MUNICIPALITY.

Amount

Earthwork excavation and depositing on bank with initial lead of 10 m and lift of 2 m in narrow trenches having bed width 1.25m and below for laying of pipes for water supply and sewerage works in following type of soil strata excluding refilling, disposal of surplus earth, shoring and strutting beyond 2m depth but including hand bailing out water wherever necessary and all other incidental charges. etc. complete and as directed by the Engineer in charge.

Hard stiff clay, black cotton soil,hard red earth,shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil.-SS20B (TWAD SOR Pg.No-291)

0 - 1 m depth

1 - 2 m depth

2 - 3 m depth

Providing shoring & strutting with sheet piles /wooden piles &planks, with necessary support for excavation beyond depth of 2.00m, including cost of sheet pile/ wooden piles, plank & other materials, removing shoring and strutting after the pipes are laid etc complete as directed by the departmental officers . (TWAD SOR Pg.No-324)

Refilling the trenches with excavated earth (other then sand) complying with standard specification for filling the trenches including watering consolidation etc., complete as directed by the departmental Officers (TWAD SOR Pg.No-295)

Disposal of surplus earth including loading & unloading, conveyance within a distance of 5.00 km , spreading and levelling etc., at the sites shown by local body and as directed by departmental officers.(TWAD SOR Pg.No-322)

BEDDING

Supplying and filling in foundation and basement with Crushed Stone Sand (M- Sand) in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by departmental officers.(TWAD SOR Pg.No-323)

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

Providing Encasing concrete for encasing sewer pipes wherever required as directed by the Engineer in charge in Plain Cement Concrete 1:3:6 ( One sulphate resistant portland cement, three river sand : six blue granite metal) using 20mm and below ISS HBG, including shuttering, compacting, curing and watering etc.(0-1.5m below GL)

Laying and jointing of salt glazed stoneware pipes using sulphate resistant cement mortar 1:1.5(One Sulphate resistant portland cement 1.5 river sand ) and hempyarn (IS4127:1983) to the required alignment and slope as indicated in drawings/design and hydraulically testing of pipeline. The rate shall include cost of all necessary jointing materials (cement,sand,hempyarn etc). and testing to the required pressure including the cost and conveyance of water for filling during testing etc. complete and as directed by departmental officers.(TWAD SOR Pg.No-268)

0 - 2 m depth (150 mm dia)

2 - 2.5 m depth (150 mm dia)

2 - 2.5 m depth (200 mm dia)

2.5 - 3 m depth (200 mm dia)

Supply and Delivery of DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Double wall) (SN 8 Class) for non-pressure underground sewerage, drainage application generally as per IS-16098 (Part-2) type B.(TWAD SOR Pg.No-58)

150mm ID SN 8 pipe

200mm ID SN 8 pipe

Construction of RCC Manholes of different depths as per type design/drawing along sewer lines and provided with tight fitting FRC manhole frames and covers of 600 mm dia., of approved make and quality including supply and fixing of encapsulated PVC foot steps. The manhole shall be of RCC M 30 concrete and plastered with CM 1:3(One sulphate resistant portland cement and three sand ), 20mm thick inside and as per type design with foundation concrete 150mm thick in CM 1:4:5(One sulphate resistant portland cement four sand fice agreegate ) ,using 40mm HBG. Benching and channeling should be provided in the manhole and suitable diameter pipes for House service connection (Not exceeding 6 Nos. for each manhole) to be left in the Manholes as directed by the Engineer in-charge. The rate shall include earthwork, backfilling, and removal of surplus earth and depositing within 500m, barricading, provision of danger lights etc.

1 -1.50m depth

1.5 - 2.00 m depth

2 - 2.5 m depth

2.5 -3.0 m depth

3.0 - 3.5 m depth

Road cutting and Restoration charges

Labour charges for cutting open BT roads and WBM roads as directed by the departmental Officers(TWAD SOR Pg.No-299)

Provision of CI Pipes for culvert crossing

Lowering of CI pipes and specials in the trenches and laying to proper grade and alignment, etc as directed by departmental officers. (TWAD SOR Pg.No-258)

150 mm dia

200 mm dia

Jointing of CI pipes and specials with rubber insertion to the required specifications with M.S. bolts and nuts, complete. (including cost of jointing materials) as directed by departmental officers. (TWAD SOR Pg.No-262)

150 mm dia

200 mm dia

Cutting C.I Pipes true to axis and filing smoothly and finishing the ends complete as directed by the departmental officers (TWAD SOR Pg.No-271)

Dismantling of reinforced cement concrete, clearing away and carefully stacking materials useful for reuse for any thickness of walls.(TWAD SOR Pg.No-311)

Supply delivery of C.I S/S LA class pipes 5.50 m length as per IS 1536/2001 and as amended from time to time with ISI marking including cost, duties, freight, loading , unloading etc and as directed by departmental officers. (TWAD SOR Pg.No-37)

150 mm dia

200 mm dia

Dewatering using 5 HPdiesel engine pumpset including Hire charges, cost of Diesel,Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete.(TWAD SOR Pg.No-309)

Supply and delivery of 110 mm dia PVC 6ksc pipes as per IS:15328-2003, . (30 Nos X 6m=180m )(TWAD SOR Pg.No-25)

Earth work excavation house service connections from property limits to manholes on sewers(TWAD SOR Pg.No-291)

Lowering of UPVC Pipe house service connections from property limits to manholes on sewers

Road Cutting

B.T. Roads (or) Maccadam road for laying HSC pipes(TWAD SOR Pg.No-299)

Cutting open concrete roads for laying HSC pipes(TWAD SOR Pg.No-299)

Road Restoration

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and Eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

TCB CONSTRUCTION