CONSTR OF RETAINING WALL NEAR BLDG NO NRES 45 UNDER PARA 35 WORK OF DEFENCE WORKS PROCEDURE

Amount

Rough excavation n.exc 1.5m deep and getting out in soft/loose soil for foundation of retaining wall complete all as specified and as directed.

Rough excavation exc 1.5 m & n.exc 3.0m deep and getting out in soft/disintegrated rock for excavation of slope hill to form made up GL complete all as specified as directed.

M&L PCC 1:3:6 type C2 (using 40mm graded stone aggregate) as in foundation, filling and mass concrete complete all as specified and as directed.

M&L for PCC 1:3:6 type C2 (40 mm graded aggregate) as in retaining wall etc all as spd and directed by the Engr-in-charge

M&L for plain cement concrete 1:2:4 type B1(20mm graded stone aggregate) as in coping , bed plates including weathering slightly rounded or chamfered angles and trotting complete all as specified and as directed.

M & L for RCC M25 design mix (20mm aggregate) in beam over 1.5 meter span all as specified and as directed

M&L for formwork to faces of walls, retaining wall, abutments, parapets and staircase railings and similar work including attached pillasters, buttresses etc vertical or to batter for rough finished surfaces complete all as specified and as directed.

S&F TMT bar 10mm dia and over, cut to length bent to shape required, including cranking, bending spirally for hopping of columns, hooking ends and biniding wire and including mild steeiw wire (annealed) not less than 0.90mm dia or securing with clips

Ditto as per item no - 8 but 5 mm and over upto and including 10 mm dia in stirrups, spacers and binders

S&F PVC (SWR) 75mm dia pipes single socketed, in any length as in weep holes complete all as specified and as directed.

M&L for hand packing using broken stone or boulders (any thickness) at back of retaining wall and raising or lowering to the required level complete all as specified and as directed.

S & F in repair 110 mm bore PVC (SWR) pipes single socketed, as in weep hole for R wall etc complete all as specified and as directed

S & F of geosynthetic material 75 mm dia as in weep holes cover all specified and as directed.

Returning filling in soil/back filling of retaining walls using approved earth obtained from excavtion including watering, well ramming in layers etc complete all as specified and as directed.

Removing excavated materials (soil) not exc 50 m complete all as specified and as directed.

Material & Labour for Hardcore of gauge n exc. 63mm deposited spread and levelled in layers n exc 15 cm thick watered and rammed to true surface complete all as specified and directed.

Material and labour for plain cement concrete 100mm thick type B-2 1:2:4(40mm graded aggregate) as in hard stand/ path etc including finish the surface even and fair without using extra cement

M&L for 75mm thicks 1:3:6 type C-2 (40mm graded aggregate) as in plinth protection finished the surfaces fair and even complete all as specified and directed

Taking down 25 mm dia steel tubing and connections, including cleaning and refixing or removal to store complete all as directed

M&L PCC 1:3:6 type C2 using 40mm graded stone aggregate as in surface channel/drain including necessary from work complete all as specified and directed.

Suply and fix galvanished steel water tubing 25mm bore, medium grade with all fittings and fixed complete to walls/ceiling or laid in floors complete all as directed by the Engr-in-Charge.

Re-fixing galvanished steel water tubing 25mm bore, medium grade with all fittngs and fixed complete to walls/ceiling or laid in floors complete all as directed by the Engr-in-Charge

Supply and fix Gun-metal globe or gate valves, 25mm bore with iron wheel head screwed both ends for iron pipe and fixed

Darjeeling Enterprises

M/S TSHERING BHUTIA

Janata Enterprises

BIMAL BHATTRAI

M/S MANOJ VERMA

NISHA CONSTRUCTIONS

Damdoo Bhutia