PROVISION OF RETAINING WALL AND SLOPE PROTECTION AT RANGAPAHAR MILITARY STATION UNDER GE 868 EWS

Amount

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 over area exc 1.5 m deep and n.exc 3 m deep and getting out in soft/loose soil complete all as specified and as directed.

Excavation over area exc 3.00 m deep and n.exc 4.50 m deep 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.

Excavation in trenches not exceeding 1.5 m wide for foundation or for shafts, wells, cesspits, manholes, pier holes etc. not exc 10 sqm on plan and exceeding 1.5 m in depth but not exc 3.0 m and getting out soft/loose soil complete all as specified and as directed

Excavation in trenches not exceeding 1.5 m wide for foundation or for shafts, wells, cesspits, manholes, pier holes etc. not exc 10 sqm on plan and exceeding 3.0 in depth but not exc 4.5 m and getting out soft/loose soil complete all as specified and as directed

Returning, filling in, including spreading, levelling, watering and well ramming in layers n.exc. 25cm thick complete all as specified and as 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 Hand packing (any thickness) at back of walls over arches etc with broken bolders 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 B-1 (using 20 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 PCC 1:3:6, type C1 (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.

Extra for forming fair finished drain or channel 30 cm 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 RCC M-30 (design mix) (using 20mm graded crushed stone aggregate) as in foundation including rafts, footings, foundation beams, plinth beams, bases for columns complete all as specified and as directed.

M&L for RCC M-30 (design mix) (using 20mm graded crushed stone aggregate) as in walls, retaining walls, basement walls, ballast walls and the like; any thickness; above top of footings; including attached pilasters and buttresses complete all as specified and as directed.

Use and waste Formwork to sides of concrete foundations, footings, bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter rough finished flat surfaces of concrete complete all as specified and as directed.

Use and waste formwork to faces of wall, retaining walls, parapets, railing and similar work including attached pilasters, buttresses etc vertical or to batter for fair finished surfaces of concrete flat or curved complete all as specified and as directed.

M & L for mild steel TMT bars(Fe-500D), 10 mm dia and over cut to length, bent to shape as required including cranking, bending spirally for hooping for columns,hooking ends and binding with mild steel wire(annealed) not less than 0.9mm dia as in reinforcement bar complete all as specified and as directed.

M & L for brick work with sub class ‘B’ bricks old size (locally available best quality) straight or curved on plan exceeding 6 m mean radius built in cement mortar (1:4) complete all as specified and as directed.

M&L for 10mm thick rendering in cement mortar (1:4), on fair faces of brick or concrete surfaces, finished the surface even and smooth without using extra cement complete all as specified and as directed.

Providing and installation of Cruciform shaped horizontal consolidation units of size 3.1 m (height) X 3.6 m (width) made out of HE 120B/E275 grade as defined in IS 2062 steel beams (min.) connected to single anchor by universal ball joint having the min. breaking load of 300 KN and having 8 No's of steel wire ropes connected to front beams and tubular tie and having front facing rhomboidal steel wire rope panel made out of 8 mm diameter mesh of size 300 mm x 300 mm with steel wire knot connection at joint Zn+Al5% class A coated of min. wire rope grade 1770 MPa and nominal punching resistance not less than 250 KN when tested in accordance with ISO 17746 and mechanically woven double twisted hexagonal shaped Zn+Al5% class A coated wire mesh panel with mesh wire tensile strength 380-550 Mpa when tested with IS 16014:2018 attached to the cruciform frame as per technical specification complete all as directed.

Supply and installation of Non-woven needle punched Geotextile filter media behind Gabion/Reinforced soil wall, behind Retaining wall as per MoRTH 700 Type-I geotextile made of poly propylene 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 4.5 m, at easily accessible location including top and bottom, with all leads and lifts, manpower and machinery, materials, labour etc, complete all as specified and as directed.

Supply and Installation of a three dimensional erosion control mat made of polymeric reinforcement with a polymeric protective coating having a longitudinal tensile strength of min 20 KN/Sqm and a nominal thickness of more than 13 mm including fixing of U pins of 8 mm diameter of depth 500 mm at 1 m c/c spacing, top support rope, bottom support rope, thimbles, U-clamps, etc at the easily accessible location including top and bottom, with all leads and lifts, manpower and machinery, materials, labour complete all as directed.

Providing and fixing self-drilling anchors of min. 32 mm diameter on cut slope with yield load > 280 KN with attached sacrificial drill bit, nut, washer plate, coupler for connecting bars with suitable corrosion protection coating for bar and accessories and full length grouting including all ancillary works for soil nailing/surface anchoring including all ancillary material, machinery, Labour as per detailed technical specifications complete all as directed.

Providing and installing of subsurface drainage pipes (horizontal / inclined) in the slope with perforated PVC pipe (lined with Non -woven Geotextile) of 50 mm internal diameter by drilling and inserting the perforated PVC pipe as per the drawings complete all as directed.

Earthwork in excavation for foundation of structures as per drawing and technical specification including setting out, removing, spreading or stacking of spoils within a lead of 500 m as directed and trimming the sides of the trenches, levelling, dressing and ramming the bottom in all sorts of soil excluding marshy soil & rocks (soft or hard) by mechanical means complete (Reference MoRT&H's specification clause 304) complete all as directed.

Removal of vegetation, bushes, shrubs in lower and upper section including stacking of useful material, disposing off material from hill slope within lead of 50 meter complete all as directed.

Supply only PVC pipe, 110 mm bore ISI marked for weep hole of Retaining wall complete all as specified and as directed.

S&F 3 mm dia galvanized steel wire netting with 50 mm aperture fixed with tinned tacks of wire staples complete all as specified and as directed.

Preparation & submission of soil investigation report in sixupulate by conducting soil investigation after making bore holes 150 mm dia in any type of soil up to max 15m depth or upto the depth of refusal, collecting, disturbed and undisturbed samples, conducting standard penetration test (SPT) at interval of 1.5m thereafter or on change of strata and laboratory test like CBR test, Direct/Triaxial shear test, Grain distribution curves & pattern in bore holes, Type of soil, C value, Bulk density, Natural moisture content, Dry density, Water table, Specific gravity, Atterberg limit, Hydrometer analysis, Liquid & Plastic limit, Swelling Index, Evaluation of liquifaction potential IS-1893 Part I -2016. Note : (i) Each bore hole will be measured upto depth of refusal or 15.00 m whichever is earlier. (ii) Rate includes mobilsation of T&P as per requirement and direction of the Engr-in-Charge.

Conducting Plate Load Test (Trial pit size 1.2m x 1.2m x 1.5m) to evaluate safe bearing capacity of soil and modulus of sub grade reaction as per IS specification incl completion of field work and lab test result and submission of report in Sixupulate.

Compilation of Field and Laboratory test results, Preparation of reports, Recommendation for depth of embedment, water table, submission of all report booklets 06 (Six) copies with CD 01 (One) copy including photographs & videography duly indicating the following :- (a) (i) Evaluation of safe bearing capacity of the soil with respect to shear failure test and permissible settlement (Total and Differential) alongwith recommendation about type of foundation and minimum depth of foundation to be adopted for subject work. (ii) Specific suggestions if any for Soil Treatment if required below foundation /ground floor / roads and type of treatment to be carried out. (iii) Bore log diagram duly showing the different layers of strata met alongwith their depths. (iv) Following point to included in SSI report (Not comprehensive, appropriate date information) may be added as per requirement. (b) Following points to be included in SSI report (not comprehensive, appropriate data/information) may be added as per requirement:- (i) Introduction. (ii) Objection of the geotechnical investigations. (iii) Details of the proposed structures & locations of BH & Plate load test. (iv) Site conditions in brief. (v) Field investigations & result thereof. (vi) Laboratory test results. (vii) Soil profile. (viii) Allowable bearing capacity based on ‘N’ value’ c Ø value and permissible settlement with sample calculations complete. (ix) Liquefaction analysis with calculations. (x) Foundation alternatives duly tabulated building wise (xi) Clear recommendations duly vetted by any IITs/NITs institute. A table showing building name. BH No depth & coordinate of the BH corrected SPT ‘N’ values and the recommended SBC and clear recommendations for depth and type foundation including any required soil improvement matching with the site plan should form part of the recommendation. (xii) Annexure including bore logs, C- Ø and indicated for BHs, likelihood of water-logging at site must also be checked. (xiii) If the soil/water has high (more than permissible) contents of sulphate, chlorides or any other deleterious material, the same should be brought out the appropriate recommendation be offered. The required chemical analysis needs to be undertaken for the same. (xiv) All relevant IS code on the subject should be followed and mentioned at appropriate places.

Vetting of geotechnical investigation report from any NIT(National Institute of Technology)/IITs(Indian Institute of Technology) and submitted in Six numbers/sets and soft copy before construction of wall to GE 868 EWS for approval of accepting officer.

Designing of architectural and structural drawings of entire slope protection scheme from reputed consultant / agency and all relevant arch and structural drawings as in proper scale showing each and every details /measurements/ dimensions etc and submit the same in six numbers/sets. Scheme and structural drawings should be vetted from any NIT(National Institute of Technology)/IITs(Indian Institute of Technology) and submitted in six numbers/sets in hard as well as soft copy before start the construction of wall to Accepting Officer for approval .However, similar nature of drawings are uploaded for reference only. Note:- contractor shall consult with So1(Design) /Dir (Design) of this HQ on drawings before going ahead for vetting to avoid any correction at the time of final submission.

JYOTI ENTERPRISES (BID ID -3283760)

Phoenix Infra (BID ID -3287525)