Geotechnical Investigation, Designing and Providing Protection to hill slope and RCC Precast Paneled Works near the foothill on Central Avenue Road between Electric Pole No. CA 123 to CA 130, South Site, BARC , Trombay, Mumbai.

Geotechnical Investigation & Insitu Testing: Making bore holes of 100 -150mm dia below existing soil ground surface upto minimum 35.0m depth or as required by auger drilling as per IS 1892 – 1979 through all type of soils or refusal strata whichever occurs earlier ( Refusal strata shall mean when SPT field ‘N’ value reaches 100 for 30 cm or less penetration of SPT sampler) and recording SPT, Collection of all samples etc for testing as per IS specification etc complete.

Laboratory Test, Conducting laboratory test on UDS/DS sample as per relevant IS code.Liquid & plastic Limits

Grain Size analysis

Hydrometer analysis

Tri-axial shear test (UUT)

Direct shear test

Consolidation test on clayey soil

Bulk & dry density

Natural Moisture Content

Specific gravity

CBR Test

Submission of geotechnical investigation report ( 3 copies of draft and 5 copies of final ) with all field and laboratory test records, graphs, charts, recommendations complete as specified.

Design and Analysis of Protection System Preparing numerical analysis and design of slope retention system using input parameters viz. pull out tests values , various physical and shear parameters from geotecnical investigation report. including preparation of construction drawings, detalied specification, construction methodology, material specification etc.

Hill at Dargah Road at Electrical Pole No. CA 123 to CA 130 South Site as specified by Engineer Incharge

Vetting of Design report on Dargah Road at Electrical Pole No. CA 123 to CA 130 South Site hill slope protection to IITs/IIT Roorkee / VJTI

Precast Paneled Barricading Work and Protection System Scrubbing loose boulders on the surface, collecting the loose boulders at the bottom of slope including all lifts & machinery etc complete and disposing of material from hill slope within BARC area as directed by Engineer - in - charge.

Drilling and installation of 32 mm dia. SN (full form may be mentioned) / Self Drilling Anchor up to designed depth and spacings in all type of strata as per approved specification and also including cost of MS plate of approved size, hexagonal nut & washer, epoxy coat, threading of anchor bar at one end and including cost of non shrink grouting of anchor with labour and all required machinery as per technical specification and as directed by Engineer - In - charge. Note : Supply of drilling bolt R32N shall be paid in relavent Item.

Supply of Soil Nail of solid anchor bar of 32-millimeter diameter and yield strength >500Mpa, hexagonal nut, Washer Plate 150 ×150 ×8 millimetre including the drill bit, full-length grouting including all ancillary works and including all material, machinery, labour, etc. Complete and as directed by Engineer-in-charge.

Supply of Self-drilling bolts R32N, having Nominal OD of 32mm and Nominal ID of 20mm and nominal weight of min 2.7Kg/Meter of the specified length, Fy>= 230 KN as per approved specification and make. (Parameters specific to the type of anchor as per code to be provided, there are different R32N anchors available as per the code)

Supply and Installation of geocomposite Deck Drain to act as drainage media for water to seep down the slope comprising if HDPE core with geotextile filter thermally bonded to ine side , having minimum tensile strength >20 kN/m and elongation at peak of 30 %. In Plane flow of 0.95 , 0.75 , 0.60 / m-sec. under HG of 0.1 compriing to EN ISO 12957-1:2020 including all material, labour, tools and tackles as per directions of Engineer incharge.

Providing and spreading High Tensile Steel wire mesh / Geo-composite grade of machanical woven double twisted hexagonal shaped steel wire mesh interlaced during manufacturing with 8mm steel rope in longitudinal direction at 3.0m spacing (mesh wire dia 2.7mm/3.7 mm heavily Zn+PVC coated type 10x12) including top and bottom support rope, lacing wire or rope required to connect the nets and all accessories such as U-clamps, thimbles, including safety, all other ancillary works, material machinery, labour, etc. complete the easily accessible location including top and bottom with all lifts, etc. complete as per technical specifications or equivalent or of higher specifications and as directed by Engineer-in-charge.

Providing and fixing Rhomboidal shaped Hign Tensile steel wire mesh / Net / Panel of 10 millimeter diameter of steel wire rope of size 300 millimeter x 300 millimeter with suitable connection at each intermediate and end junctions having minimum tear resistance of 15kN meeting the minimum requirements. Punch Strength of Rhomboidal Cable Panel/Net : 370 KN with max displacement of 33 cm. Each Rhomboidal cable Panel/Net shall be made of one single Cable including top and bottom support rope, lacing wire or rope required to connect the nets and all accessories such as U-clamps, turn buckles, thimbles, including safety, all other ancillary works, material, machinery, labour etc. complete as directed by Engineer-incharge.

Supply of Ring Net as per ISO 17745:2016 (E ) it has the excellent elastic deformation and flexible system made of up high tensile wire( Zn+Al coated) having 3 mm diameter of steel wire rope interlaced with each other (7 times) R7 and connected through Frickel of size 300 x 300, having the bursting strength of 380 kN, top and tensile strength os 1770 Mpa bottom support rope, horizontal and vertical support rope, lacing wire or rope required to connect the nets and all accessories such as U-clamps, turn buckles, thimbles, including safety, all other ancillary works, material, machinery, labour, etc. complete as per technical -specifications and as directed by Engineer-in-charge.

Supply and fixing of three dimensional erosion control geomats manufactured by stitching together 3 layers of integral, rigid geogrids manufactured from polypropylene polymer to create a random open structure and one layer of woven polyester geogrid embedded in between the layers. The junctions between the longitudinal and the transversal ribs of the polypropylene shall be an integral part of the geogrid structure and shall under no circumstances be obtained by weaving, knitting or bonding single threads or other tensile elements. The external layers shall be planar, while the central layer shall be mechanically corrugated. The upper layer shall be capable of retaining the top soil material without soil washout. The product should have min thicknes of 18mm and aperture size of mesh as 12mm. The tesnile stregth of the geomat should be 35Kn/m as per IS 10319.

Providing and placing of dry shotcrete using fiber reinforcement with M30 grade of Ready mix concrete using 400 kg/m3 cement content and 10 mm down coarse aggregate. The average thickness of shotcrete is 100 mm and steel fibre reinforcement dosage is 56 kg / cum. Concrete is pumped through a hose and projected at high velocity onto the desired surface.

(Toe Support as per site or up to maximum height of 5 m ) Providing, installing, fixing permanent earth retaining structure using Soldier piles /H-beams with waler beams, pre-cast concrete panels of required thickness with as per requirement weep hole with filter media, MS clamps or other suitable arrangement etc, strutting, shoring or using anchors for all lead, lift and depth including boring holes for soldier piles/ strutting structural members up to required depths and filling holes, embedding soldier piles below the ground level and casted with M40 grade of concrete all as per approved structural design/ drawings, Particular specifications, IS :3764 (Excavation work - Code of Safety), and other BIS codes. Good well compacted earth shall be backfilled behind soldier piles (paid in relevant item) as per the drawing. Soldier Pile System a) Depth of pile may vary maximum upto 10 M below ground level. b) Spacing of Piles is 1.5m C/C c) 750 mm dia piles with NPB 400 up to full depth. d) Up to 5 M Height of Permanent Earth Retaining Structure. e) Size of Precast Pannel with M30 grade of concrete for Compound wall/ Soldier Piling of ( 600 mm width x 125 mm thickness x 1400 mm long) Reinforcement shall be single layer # 16 mm both ways @ c/c 100 mm. f) The Weight of Structural Steel ( Vertical members is NPB 400,10mm thick ms plate for splicing of vertical members on web and on flange ) made of steel confirming to IS 2062 required to be fabricated and fixed in Soldier Piles is approx. 60 MT for wall length of 25 m x 5 m (Height) The Cleat Angle 50mm x 50mm x 5mm for holding the precast Pannel along the face of vertical beams installed exposed height of 5 m is approx. 2.5 MT waler beams- Horizontal Members 2 nos NPB 250 at 3 m from Soldier pile top, MS Plate - 10 mm for Splicing on web and on flange of Waller Beam with capacity to take of 60 MT of Anchor, Anchor at spacing of 3 m c/c of 14 m length ( 8 m free length and 6 m fixed length to be confirmed as per vetted design report, amend accordingly used cement for Grouting of Anchors including anchor bearing plate 450x450x60/20 mm thick with Stiffener Plates on both side of Waller beam. All including weight approx. 20 MT made of steel confirming to IS 2062 . HT Strands for Anchor (12.7 mm Thickness, 0.778 Kg per Rmt ), Total fabrication length of anchor 16m ( 14 m embedded and 2 exposed for stressing purpose as per the design report. IMPORTANT NOTE: The Schedule of Quantities Referred below is only limited for the purpose of assessing the quantum of work involved by the tenderers. It is not meant for subsequent measurement and payment in the course of execution of the work. Before submitting of tenders, the tenderer shall have to satisfy themsel

Providing and Painting with Epoxy P U paint using 2 coats of (120Micron dry film thickness)Epoxy P U high build coating as finishing coat over a priming coat of epoxy-based primer with 65-70% volume solids, offering excellent corrosion resistance and adhesion to metals and concrete (ISO 3233). It provides a coverage of 6-8 m²/L at 75 microns DFT, with a touch dry time of 4-6 hours at 25°C (ISO 9117). The primer has a VOC content of <400 g/L (ISO 11890-2) and meets ISO 8501-1 standards for surface preparation. High Build primer of 50 micron thickness over steel surfaces at all locations prepared and applied as per manufacturer specifications including peparation of surface by cleaning with wire brush and rubbing,scraping,applying sand paper,making free of Rust,dust,dirtetc.filling the holes,joint,cracks if any using epoxy putty complete.all as per manufacturers technical data and as directed at site to achieveminimum over all dryFilm thickness of 170 micron (50Micron primer Coat + 120 micron finishing Coat). On STEEL surfaces.

Providing and installation of dynamic Rock fall barriers of 8600 kJ capacity corrosion protection barriers to make safe environment to work underneath the loosely placed boulders which include interception steel meshes - comprising of ring net/ cable wire rope ,threaded bolt anchor, ground plate with concrete foundation and reinforced with steel rods B450 C, HEA Steel post ( 7 m) with primary Net and secondary ring net R7 3mm, Upstream cable with energy dissipating device, up hill wire rope anchor including non shrink grouting.

ves that the quantities given in the tender documents for the various items and components of the work are correct. Deficiencies noticed, if any, should be immediately brought to the Notice of the Chief Engineer, BARC. The Contractor Shall execute the work as per drawings and specifications as given in Tender documents, and shall have no claim for any payment on account of deviations and variations in quantity of above item, unless they are authorized deviations from the parameters, drawings and specifications. Tenderer shall include all the Items as required even though the same is not mentioned above.

Removal of vegetation, bushes, shrubs in lower and upper section including stacking of useful material, disposing of material from hill slope within BARC area as directed by Engineer - in - charge.

Providing and installation of Debris flow barrier of pressure 176kpa, 6m high, 25m long, comprising of ring Nets and Double twisted hexagonal mesh including all accessories like U clamps, thimbles ,anchorages etc complete and as per technical specification and as directed by Enginneer -In charge.

Providing Structural steel work using angles, channels, joists and other sections, welded and / or bolted in built up sections for trusses , structural steel floors, frame works, monorails and other structures including supplying, cutting, welding, fabricating, hoisting, fixing in position, applying a priming coat of approved steel primer etc. complete all as per specifications, drawings and as directed by the Engineer in charge. Up to and including 300 mm Joists, 350 mm channels, and below sections Using materials of approved equivalent quality/ product meeting technical parameters, confirming to IS 2062. All test reports to be provided along with the supply of the materials. Note: 1) Structural steel required for the work shall not be supplied by the Department and the contractor has to procure the same. 2) Welding weights, connections, bolts and nuts shall not be measured for payment, but the cost of which shall be deemed to have been included in the rate. 3) All holes will be made by drilling only. Gas cutting of holes will not be permitted. 4) Welding Electrodes

Dismantling roofing including ridges, valleys and gutter etc and stacking the material within 50 m lead. G.S Sheet / FRP Sheet / AC Sheet

Providing and fixing precoated Galvalume Roofing profile sheets of approved size, shape and pitch up to and including single length of 12.00 met. The sheet shall be fixed using self drilling / self tapping screws of size (5.5 X 55 mm) with EPDM seal or with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers filled with white lead complete upto any pitch in horizontal / vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required as directed by the Engineer-in-charge. Galvalume sheet roofing 0.50 mm Thickness in Single sheet

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismantling and stacking within 100 m lead

Providing and fixing at all levels, precast members using cement concrete 1:2:4 (1 cement, 2 crushed sand, 4 graded stone aggregate of max. size 20 mm) in, copings and / or bed blocks, plain window sills, shelves, louvers, steps, staircases, trench covers, drain covers etc. including hoisting and setting in position with C.M 1:3 (using crushed sand) cost of required centering, shuttering and finishing smooth with 6 mm thick cement plaster 1:3 (using Crushed sand) on exposed surfaces complete as per specifications at all levels

Providing and fixing Rough Shahbad Stone of minimum 50 mm average thickness of size 600 X 600 mm (Approximate) over 150 mm thick (consolidated thickness) stone dust backing including setting in position in footpath to the required level and line Pointing with C.M 1:4 (using crushed sand). Joint shall be 20 to 25 mm wide including filling of joints with cement mortar and making grooves etc. complete as per the direction of Engineer-in-charge

Providing and painting old walls (TWO coats) over existing cement paint surface on plain / sand face plaster & concrete surfaces with premium acrylic smooth exterior paint of approved make, required shade, including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge.

Providing and laying in position cement concrete of 1:3:6 (1 cement, 3 crushed sand, 6 graded stone aggregate of maximum size 20 mm) including consolidation, finishing, curing etc. complete as per specificationsand drawings but excluding the cost of Form work shuttering, centering Complete at all levels