8518 REPAIRS AND CLEANING OF SEWAGE LINES AND SEPTIC TANKS AND MAN HOLES AND ITS CONNCECTED WORKS AND AT TECHNICAL AREA OF NSTL UNDER AGE (I) RnD NSTL, VISAKHAPATNAM

Amount

Excavating in trenches n. exc. 1.5m wide and n. exc. 1.5m in depth for foundation etc. or for shafts, wells, cesspits, manholes, pier holes etc. n. exc. 10sq.m. on plan and n. exc. 1.5m in depth and getting out in hard/ dense soil all as specified.

Excavating in trenches n. exc. 1.5m wide and depth exc. 1.5m but n.exc. 3.00m for foundation etc. or for shafts, wells, cesspits, manholes, pier holes etc. n. exc. 10sq.m. on plan and getting out in hard/ dense soil all as specified.

Removing excavated materials to a distance not exc. 50m and depositing where directed at a level n.exc 1.50m above the starting point all as specified.

Returning, filling in including spreading leveling watering and well ramming in layers not exc. 25cm in any type of soil all as specified.

Demolition of PCC of any description in any position

M&L for plain cement concrete 1:4:8 type D2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete all as specified and as directed.

M&L for plain cement concrete 1:2:4 type B1 (using 20mm graded stone aggregate) as in channel benching concrete etc. all as specified and as directed.

Demolition of brick work or stone masonry built in cement mortar including all quoins, arches, pillars, etc complete all as directed.

M&L for brick work with fly ash bricks straight or curved on plan exc. 6m mean radius using modular bricks built in cement mortar (1:6) all as specified.

Demolition of reinforced cement concrete (reinforcement cut as required to facilitate demolition) of any description and in any position not otherwise specifically provided for all as specified.

M&L Providing precast cement concrete 1:2:4 type B1 (using 20mm graded stone aggregate) in landings, cover slabs (for man holes etc.) chullah hoods, chajjas, water troughs, mangers, shelves and similar articles with plain faces set in cement mortar 1:4 complete all as specified and as directed. [Note: Reinforcement shall be measured and paid separately under relevant item of this BOQ]

S&F high strength deformed TMT steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia all as specified and as directed.

S&F high strength deformed TMT steel bars 6 to 8mm dia, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia all as specified and as directed.

Taking down cement plaster of any description on brick or stone walls of manholes

M&L PCC type C1, 1:3:6 (20mm graded aggregate) including formwork as in coping.

M&L for extra for forming fair finished drain or channel of any inner girth in cement concrete using extra cement including forms moulds mitred/stopped end etc.

M&L for rendering 15mm thick in CM 1:4 on fair faces of brick work or concrete surfaces finished even and smooth without using extra cement complete all as specified and as directed.

M&L for concrete bed to drain pipes of 150mm bore dia including packing under, and haunching against the sides of pipes after they are laid and tested; in cement concrete 1:3:6, type C2 all as specified.

S&F UPVC Soil, Waste pipes Type 'B' conforming to IS 13592-1992, 150mm internal dia single socketed in any length with rubber ring joints laid in trenches/ floors complete including taking up existing unserviceable drain pipes all as specified and as directed

Supply and lay Reinforced concrete pipes 450mm bore, class NP2, laid and jointed complete with collars including taking up/ down existing damaged pipes.

Removing carefully cover slab of manholes of any size, depth n.exc. 1.0m and removing the scum/ sludge including any organic or inorganic matter, washing down with water for smooth functioning of sewage line, removing the sludge obtained from cleaning to a distance not exceeding 50 mtr and buried in ground to a depth not less than 1 metre, and setting the man hole covers in position after inspection etc. all as directed

All as per Item No. 21 herein before but manhole of depth exc. 1.0m but n.exc. 2.0m

Taking out carefully precast RCC cover slabs of septic tank/ filter bed of any capacity, taking out scum/ sludge including liquid using mobile tanker equipped with sludge pump etc. and depositing off at places earmarked by GVMC authorities outside MD land, cleaning the tank with water, bleaching powder etc. clearing the bushes, vegetation etc. up to a distance of 2 mtr from outer edge all around the septic tank, including placing in position and setting the cover slabs with cement sand mortar (1:6) after inspection etc. complete all as directed.

Clearing out blockage from WC up to manhole with cleaning rod including removing all materials from P trap of WC and disposing off complete all as directed.

Clearing out blockage from Floor trap/ Nahani trap up to manhole with cleaning rod including removing all materials from the trap and disposing off complete including removing and refixing the grating all as directed.

Cleaning of blockage existing sewage lines of 100mm to 150mm dia by rodding from one manhole to next manhole and washing with fresh water including removing all sludge from the sewage lines and disposed off properly outside the MD land complete all as directed.

Cleaning of blockage existing sewage lines of 200mm to 300mm dia by rodding from one manhole to next manhole and washing with fresh water including removing all sludge from the sewage lines and disposed off properly outside the MD land complete all as directed.

S&F in repair Framed work as in doors or gates of angle or other sections with gusset plates, rails, braces etc complete drilled for fixing of steel sheeting or other coverings. Doors etc to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings(exclusive of steel sheetings or other coverings running rails and guiders) and hanging also fastening and fixing complete Fe-410-W(Gde-e-250) quality A

M/L Preparing new steel surfaces and appling two coats of synthetic enamel paint over a coat of red oxide primer

Dismantling of stone slab or tiles of any description in floors, aprons etc., laid bedded and pointed in any mortar all as specified and directed.

M&L chequered cement concrete tiles30 cmx30 cmx25mm thick with grey cement and pigments, set, jointed and pointed in neat cement slurry in floors over screed bed or bedding layer of mortar 15mm thick for laying floor finishes in CM 1:4 as specified and directed.

Demolition of cement concrete etc in any description/any location not exceeding 15 cm thickness.

M&L cement concrete type D2 1:4:8(using 40 mm graded aggregate) in foundations, filling and mass concrete.

G Srinivas Rao

ROHITH INFRA

B SRINIVAS

cevelworck

RAVI VARMA JAMPANA

E.BULLEBBAI CONSTRUCTIONS

SRI LAKSHMI NARASIMHA ENTERPRISES