PROVISION OF LANDSLIDE PROTECTION WORK FOR OSQ HILL, OFFR ACCN AND G plus 2 BLDG AT JN LINE OF CIJW SCHOOL VAIRENGTE

Amount

Surface excavation n.exc 30 cm deep and averaging 15cm deep in soft/loose soil and getting out complete all as specified and as directed.

Rough excavation not exceeding 1.5 m deep and getting out soft / loose soil complete all as specified and as directed.

Excavation over area, n. exc 1.5m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Excavation in trenches not exc 1.50 m wide and not exc 1.50 m deep for foundation, laying of pipe or for shafts, wells cesspits, man holes, pier holes, laying of cable etc not exc 10 Sqm on plan and n exc 1.5m in depth and getting out in soft / loose soil complete all as specified and as directed.

Returning filling in, including spreading, levelling, watering and ramming in layers not exc 25 cm in soft/loose soil complete all as specified and directed.

Removing excavated soil to distance not exc. 50 m and depositing where directed at a level not exc. 1.5 m above the starting point etc complete all as specified and as directed.

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

M & L for PCC 1:2:4, type B1 (using 20 mm graded crushed stone aggregate) as in coping, cills, fixing of post, water trough etc. including necessary formwork (straight or curved) complete all as specified and as directed.

M & L for PCC 1:2:4, type B2 (using 40 mm graded crushed stone aggregate) as in surface channel or drain including necessary form work complete all as specified and as directed.

M&L for extra for forming fair finished drain or channel 30cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped ends etc. complete all as specified and as directed.

M&L for rendering 10 mm thick on fair face of brick wall or concrete surfaces in CM (1:4) and finised the surfaces even and smooth without using extra cement complete all as specified and directed.

M&L for Walling of random rubble, coursed in retaining walls, abutments and similar works regular coursed, well bonded, bedded and solidly hearted, built in cement mortar (1:6) with lime/sand stone and PCC (1:3:6) type C1 precast bond stone (in lieu of stone bond stone) set in cement mortar (1:4) Complete all as specified and directed Note :- (i) Precast PCC Bond stone shall be measured and paid separately against Item no 13 (ii) RR Masonry will be measured after deducting PCC Bond stone.

M & L for precast PCC bond stone of (1:3:6) Type C1 using 20 mm graded stone aggregates) for retaining wall ,abutment and similar works (set in cement mortar 1:4) including necessary formwork complete all as specified and as directed.

M&L for raised pointing to random rubble, coursed in CM (1:3) complete all as specified and as directed.

S & F 110mm dia PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors & for weep holes complete all as specified and as directed.

S & F 110 mm dia PVC (SWR) bends any radius complete all as specified & directed.

M&L for Hand packing of stone boulders (any thickness) at back of walls over arches etc. and raising (or lowering) to the required level complete all as specified & directed.

S & F rolled mild steel plates (plain or chequered) channels. square cut or notched (ordinary & counter sunk) forming holes, with riveted, bolted or welded attachment Fe-410- W(Gde- E-250) quality- B complete all as specified and as directed.

Supply and installation of Strong face Gabion units of 1 m height made of mechanically woven, double twisted, hexagonal shaped steel wire mesh as per IS 16014:2024, MORTH clause 2500 of required sizes, Mesh type 10cmx12cm with mesh opening tolerances -10% to +10%, Mesh wire dia. 2.7/3.7mm(ID/OD), (higher wire diameter for front panel), 90% Zn + 10% Al + High abrasion resistance coated, mechanically edged/selvedged ,with partition at 1 m interval and shall have minimum 10 numbers of mesh openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2/3.2 mm (ID/OD), Dark Brown rust (DBR) not more than 5 % after subjecting to 10000 hours of neutral salt spray as per ISO 9227 and polymer should be resistant to abrasion after 300 cycles and shall not expose metal wire in accordance with the procedure described in ASTM A 975 complete all as specified and as directed. Note :-Hand packing of stone boulder inside gabion will be measured and paid separately under respective item.

Supply and laying non woven Geotextile filter media behind reinforced concrete wall and wrapped around PVC Pipe, as per MoRTH 700 type – III, geotextile made of polypropylene or similar fibre manufactured through machine made process of heat bending or needle punching technique and tensile strength 7KN/m weight not less than 150gm/Sqm as per manufacturer specification, the width of Geotextile roll shall not be less than 4.5m complete all as specified and as directed.

Supply and Installation of Self Drilling Anchors of 32 mm diameter, yield load > 230 kN, drill hole of 76 mm, hexagonal nut, washer plate, coupler for connecting bars, drill bit (in case of self drilling anchors) and full length grouting with admixture including all ancillary items for foundation anchoring and as per technical specifications etc. complete as per detailed technical specifications and as directed by Engineer - In - Charge.

Supply and installation of three dimensional erosion control mat made of polypropylene polymer of minimum mass per unit area 400 gm / sqm extruded on to a mechanically woven double twisted hexagonal shaped steel wire mesh (as per EN 10223-3) made up of 2.7mm dia having a tensile strength of 80kN/m. Steel wire and mesh type 8 x 10 having Zn-Al 5% coating as per EN 10244-2 longitudinally weaved with steel cable of 8 mm diameter at a spacing of 1.0 m, including fixing of U pins of 8mm diameter of typical depth 500mm at 1m c/c spacing, including top/bottom support ropes, lacing required to connect the nets and all accessories such as Lap links, U-clamps, thimbles, including safety, all other ancillary works, material, machinery, labour, etc complete all as specified and as directed.

Supply and application of High Performance-Flexible Growth Medium (HP-FGM) which is100% biodegradable, composed of 100% recycled, thermally refined (within a pressurized vessel) virgin wood fibers, crimped interlocking biodegradable fibers, mineral activators, and wetting agents (including high-viscosity colloidal polysaccharides, crosslinked biopolymers and water absorbents) along with STANDARD prescriptive agronomic formulations such as fertilizer, extended-term dyes, soil pH modifiers, bio stimulant materials and seeds which is hydraulically-applied for Erosion control and faster growth of Vegetation including Supply and application of Biotic Soil Media (BSM) - a combination of recycled Thermally Refined bark and wood fibers with a proprietary blend of biopolymers, biochar, seaweed extract, humic acid, endomycorrhiza and other beneficial constituents. All components of the Biotic Soil Media blend shall be of naturally derived and renewable, and engineered to optimize moisture retention, growth and establishment of vegetation. BSM is applied hydraulically over soil substrate to add organic matter so as to enrich soil nutrients prior to application of HP-FGM or other hydraulic erosion control mulch layers. as per BSM specifications along with standard prescriptive agronomic formulations such as fertilizer, extended-term dyes, soil pH modifiers, bio stimulant materials, seeds etccomplete all as specified and as directed.

AECS Engineering and Geotechnical Services Pvt. Ltd. (BID ID -3303395)

R K ENGINEERING ASSEMBLE (BID ID -3300239)

KESHAV ENTERPRISES (BID ID -3305446)

Rajan Traders (BID ID -3300144)

JYOTI ENTERPRISES (BID ID -3300165)

Phoenix Infra (BID ID -3305603)

V M MATERE INFRASTRUCTURES INDIA PVT LTD (BID ID -3305526)

M/s JK Jangid and Company (BID ID -3305013)

ASSOCIATED BUILDCON LLP (BID ID -3298823)

HTE INFRA LLP (BID ID -3305172)