Reconstruction restrengthening of retaining wall at certain places on road leading from Ganjulama Gate to Defence auditorium at New Mil Stn Gangtok

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.

Excavation over areas n.exc 1.5 deep in soft/disintegrated rock for foundation of retaining wall complete all as specified and as directed.

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

M&L for plum concrete consisting of PCC 1:3:6 type C2 (using 20mm graded stone aggregate) mixed with 25% of boulders all as specified (for measurement qty of boulders will be deducted from total volume of concrete and same will be paid separately in supply only) as in wall complete all as specified and as directed.

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

M&L for RCC M-25 design mix(using 20mm graded stone aggregate) as in beam over 1.5 meter span complete 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.

M&L mild steel TMT bars 10mm dia and over cut to length bend to shape required including cranking bending spirally for column, hooking ends & binding with and including mild steel wire (annealed) not less than 0.90 mm dia or securing with clip) complete all as specified and as directed.

M&L mild steel TMT bars 5mm dia and over upto and including 10mm dia in stirrups, spacers and binders and over cut to length bend to shape required including cranking bending spirally for column, hooking ends & binding with and including mild steel mild wire (annealed not less than 0.90 mm dia or securing with clip) complete all as specified and as directed.

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.

Labour for hand packing using broken stone or boulders (any thickness) at back of block masonry retaining wall and raising or lowering to the required level complete all as specified and as directed. (Except material obtained from item No. 2 & 3)

Supply & fix in repair 110 mm bore PVC (SWR) pipes single socketed, in any length with rubber ring joints fixed to wall with necessary clamps,bolts etc.or laid in trenches complete all as specified and as directed

Supply & fix in repair 110 mm bore PVC (SWR) bends any radius complete all as specified and directed by the Engr-in-Charge.

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

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25cm in soft/dis-integrated rock complete all as specified and as directed.

Removal of surplus excavated materials to a distance n.exc 50m and depositing where directed complete all as specified and as directed.

M&L for back filling of retaining walls using approved earth obtained from excavation exc 1.50KM and n.exc 5 KM complete all as specified and as directed.

Supply only boulders exceeding 15cm and upto 30cm dia complete all as specified and as directed.

M&L for plain cement concrete 100mm thick type B-2, 1:2:4 (using 40mm graded stone aggregate) as in hard standing/path etc including finish the surface even and fair without using extra cement etc complete all as specified and as directed.

M/S ANIL KUMAR THAKUR

RAAJ BANGAR

DHARMINDER SINGH

KARMA TSETEN BHUTIA

BIJAY MITTAL

M/S MANOJ VERMA

MAHENDRA KHAWAS

KARMA SHERPA