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| 1 | Stripping and grading the area including for foundation of dyke including excavations, removal of trees, vegetation, etc. with all labour, materials, equipment, lifting, hauling and stock piling of useful excavated material away from the heel and toe of the embankment and disposal of unsuitable materials upto a lead of500 m outside the embankment, cost of lowering ground water level to atleast 1.0 m below final excavation level by any approved method, as required, removal of slush and organic materials, if any, for all leads and lifts complete as per specifications, drawings and as directed by engineer incharge. |
| 2 | Preparation of foundation including compaction of foundation ash / soil to achieve dry density not less than 95% of maximum dry density (standard Proctor) with Vibratory roller and / or any other equivalent mechanical means as approved by engineer incharge including cost of labour, equipment and materials, completeetc. as per specifications, drawings and as directed by engineer incharge. |
| 3 | Formation of dykeFormation of dyke/ roads using approved materials including the preparation of borrow area, stripping, watering of borrow area, excavation of approved quality of material from borrow area, using poclains or any other mechanical means, loading, unloading, transporting by dumpers, trucks etc., surface watering / dewatering, lowering of water level to at least 0.5 m below the bottom of the working level, including construction of cofferdams wherever required, depositing the fill material on the dyke, spreading by dozers or grader in layers not exceeding 30 cm in compacted thickness for forming the embankment with all leads, lifts, breaking clods, watering, compaction with min. 10 tone capacity vibratory rollers or pneumatic tyred rollers to achieve a dry density not less than 95% of maximum dry density (Standard Proctor) forming extra width on edges, trimming of slopes and slope compaction with dozers or slope compactors to obtain the section as per construction drawings, with all incidental charges, cost of labour, equipment, materials etc. complete as per specifications, drawings and as directed by the Engineer. i) With ash available from inside ash dyke area |
| 4 | Formation of dykeFormation of dyke/ roads using approved materials including the preparation of borrow area, stripping, watering of borrow area, excavation of approved quality of material from borrow area, using poclains or any other mechanical means, loading, unloading, transporting by dumpers, trucks etc., surface watering / dewatering, lowering of water level to at least 0.5 m below the bottom of the working level, including construction of cofferdams wherever required, depositing the fill material on the dyke, spreading by dozers or grader in layers not exceeding 30 cm in compacted thickness for forming the embankment with all leads, lifts, breaking clods, watering, compaction with min. 10 tone capacity vibratory rollers or pneumatic tyred rollers to achieve a dry density not less than 95% of maximum dry density (Standard Proctor) forming extra width on edges, trimming of slopes and slope compaction with dozers or slope compactors to obtain the section as per construction drawings, with all incidental charges, cost of labour, equipment, materials etc. complete as per specifications, drawings and as directed by the Engineer. i) With earth available from inside ash dyke area/UPRVUNL land near ash dyke area. |
| 5 | ii) With earth to be arranged by the Contractor from outside ash dyke area. |
| 6 | Supplying clean, silt & foreign material free, graded coarse sand satisfying the filter criteria, as approved by Engineer -In-charge, for horizontal blanket & vertical sand chimney in the bund and filters around the rock toe, including cost and conveyance of materials from the approved source, laying it in position in layers as per instruction of Engineer-in-charge, watering, compaction with roller/ hand rammers, leveling, excavation of compacted ash (for placing sand chimney) including disposal of excavated ash with all labour, materials, royalty, equipment in all leads and lifts etc. as per specifications, drawing and as directed by the Engineer-in-charge.a) BlanketFilter Layerand chimney filter |
| 7 | Supplying, laying in position brick masonry forfor slope protection, drainsand other masonry works withbricks of class 75 designationas per drawings in mortar 1:6 (1 cement : 6 sand) at all lifts & leads, cost of labour, materials, royalty, equipments, mixing, laying, raking out joints, curing, excavation & backfilling, etc. complete as per specifications, drawings and as directed by engineer-in-charge using fly ash bricks as per IS : 13757 from ash brick making plant installed by contractor himself or from outside sources. |
| 8 | Providing and constructing 75mm thick flat bricklaid,for protection of sideslopesin mortar(1cement:4 Mortar) & pointing of joints including the costoflabour,materials, transportation allleadsand lifts, equipment, etc. complete asper drawings and as directed by the Engineer. |
| 9 | Excavation at locations of collecting wells, drains, slurry discharge aprons, pipes, manholes and any other auxiliary works in all types of ash / soil including shoring / strutting / dewatering, as required, cleaning of vegetation / jungle in all lifts, disposing unsuitable material within a lead of 500 m outside dyke, stock piling of useful portion of the excavated material for bund construction / backfilling within a lead of 50m, etc. complete, asshown on drawings, mentioned in specifications and as directed by Engineer-in-charge. Excavation in ash/Earth. |
| 10 | Back filling around the foundation pits for auxiliary works structures with excavated soil/ash including cost of labour, collection, placing in layers, watering, compaction including all leads and lifts complete as per specification and as directed by the Engineer-in-charge.Back filling with ash/Earth. |
| 11 | Providing Plain Cement Concrete using 40mm & downstone aggregates (crushing value / impact value as per IS:2386) as approved by engineer-in-charge,laying the concrete at all lead/ lift including labour, materials, equipments, handling, transporting, mixing, curing, testing, royalty, etc. excluding form work, all complete as per drawing, specification & direction of Engineer-in-charge.a)M-10 concrete (min. cement content 220 Kg/cum). |
| 12 | Providing and laying reinforced concrete work at all levels for all kinds of work including labour, materials, equipment, handling, transporting, batching, mixing, supplying & providing admixers, plasticizers (if required by engineer-in-charge) in quantities as per EIC’s direction, placing, leveling rendering, cleaning,curing including protecting finished RCC with plastic sheets etc. including dewatering if required, all leads and lifts royalty complete as per specifications, drawings and instructions of the engineer-in-charge but excluding staging, shuttering and reinforcement work. No separate payment shall be made for admixers, plasticizers.b) M-25 ( -aggregate 20 mm nominal size graded). Min. cement content 410 Kg/cum. |
| 13 | Same as above item but for M-25 precast concrete panels including handling and storage at place directed by Engineer-in-Charge. |
| 14 | Supply & transporting to site reinforcement steel (High Yield Strength Deformed bars as per IS:1786)/Thermo-Mechanically Treated bars in reinforced concrete work at all levels, for all kind of work, including placing, cleaning, straightening, cutting, bending, binding in position, with annealed wire and providing cement concrete cover blocks, pins, separators, chairs, supports for reinforcement with all materials, labours, equipments, handling, testing, preparation of bar bending schedule all complete as per drawings, specifications & instruction of Engineer-in-charge. |
| 15 | Providing and fixing formwork (steel / plywood) of approved quality for cast-in-situ, plain or reinforced concrete works of any type and section (including curved surfaces), including labour, materials, equipments, waste for forms, shoring, strutting, scaffolding, staging, tying, nailing, caulking, bolting, etc. all complete as per specifications, drawings and instructions of the Engineer-in-charge.Foundations, Footings, Bases of Columns, Pillars, Piers, Abutments, Posts, Struts and Curved surfaces for wells |
| 16 | Providing, fabrication, erection and alignment ofmiscellaneous steel structure conforming to IS:226 / IS:2062 at all elevations, including preparation and obtaining approval of fabrication drawings for approach bridges to decantation wells, decantation well structural frame, M.S. gates, ladders complete with stringers, treads and intermediate landings, etc. including all operations such as cutting, straightening, welding (weight not considered), bolts, nuts, washers, erection bolts (weight not considered), drilling, grinding, machining, stiffeners, gussets, base plates, cleats, etc., including providing a shop coat of red oxide zinc chromate primer, touchup, a second coat of primer after erection and 3 coats of synthetic enamel paint, all as directed by Engineer-incharge. |
| 17 | Fabrication, erection and alignment ofmiscellaneous steel structure conforming to IS:226 / IS:2062 at all elevations, including preparation and obtaining approval of fabrication drawings for approach bridges to decantation wells, decantation well structural frame, M.S. gates, ladders complete with stringers, treads and intermediate landings, etc. including all operations such as cutting, straightening, welding (weight not considered), bolts, nuts, washers, erection bolts (weight not considered), drilling, grinding, machining, stiffeners, gussets, base plates, cleats, etc., including providing a shop coat of red oxide zinc chromate primer, touchup, a second coat of primer after erection and 3 coats of synthetic enamel paint, all as directed by Engineer-incharge. ( Structural Steel sections to be supplied by department which is presently available at 2nd raising of Ash Dyke). |
| 18 | Supply, fabrication and erection of galvanised MS pipe handrails of flush welded construction made of 32 NB pipe conforming to IS:-1161 (medium class) with two horizontal rails, one 500mm and the other 1000mm above the base level with vertical pipes at a maximum spacing of 1000mm including provision of all accessories such as base plates, kick plates where specified and other fixtures all as per design and specifications including primer and finish painting, etc. all complete. |
| 19 | Supplying, fabricating and placing in position Stainless Steel ladder rungs conforming to IS:316 of the shape and size as indicated on drawings in collector wells / pits, all as directed by Engineer-incharge. |
| 20 | Road Work (a) Box cutting ( excavation in soil) of exisitng dyke top required for making roads as per the section on drawings. |
| 21 | Road work (b). Preparation of subgrade, grading, compaction ,dressing to camber , watering and consolidation with power road roller of 8 to 12 tonne capacity,making good the undulations etc. complete as per specification. |
| 22 | Road work (c) Providing, laying, spreading and compacting stone aggregate of specified sizes to WBM specifications in uniform thickness, hand picking, rolling with 3 wheeled road / vibratory roller 8-10 tonne capacity in stages to proper grade and camber, applying and brooming requisite type of screening / binding material to fill up interstices of coarse aggregate,watering and compacting to the required density .i) Two layers of 100 mm thick with stone aggregate 90 mm to 45 mm including stone screening 13.2 mm size for sub base course |
| 23 | Providing and laying of base course(water boundmacadam) in two layers of 75mmfin ishedthickness each with 63-40mm and50-20mm graded stone aggregate, true to camberand slopeincludingfull compensationfurnishing all materials to be incorporatedin the work including all leads andlifts, preparation of sub-base course,spreading,rolling, providing and applyingscreening, sprinklingandgrouting,applicationof binding material, setting, and drying,all labour,tools, equipments andincidentalsnecessarytocompletetheworkasperdrawings, specifications. |
| 24 | Supplying, laying at all levels and fixing in position reinforced cement concrete pipes of specified internal dia, conforming to IS:458 and IS:783 including cost of jointing with hemp yarn and cement mortar 1 : 2 ( 1 cement :2 sand ), materials, cost of lifts, dewatering, etc. complete as per drawing specifications and as directed by the engineer-in-charge (all materials including cement for pipe manufacturing shall be provided by contractor at his own cost.).a) 200 mm internal diameter of Class NP-3. |
| 25 | 12mm average thickness cement plaster of mix 1:6 ( 1 cement : 6 fine sand ) at all lifts / delifts on all type of surfaces ( vertical / horizontal/inclined) as per drawings, specifications and as directed by Engineer incharge. |
| 26 | Supplying and laying in position 150mmx150mmx600mm (300mm embedded in ground and 300mm projected) long precast RCC kerb pillars in plain concrete of grade M15 on top of the bund including excavation, backfilling, white washing the projected surfaces, etc. complete. |
| 27 | Providing and laying Biaxial Geogrid having ultimate tensile strength 60 KN per mtr. (MD & CMD), grid aperture 18mm, alongation maximum 15%, molecular weight not lessthen 25000 g/ molas per specifications including all the cost of material, T&P and labour, scaffolding etc. to complete the job as per drawing and direction of Einginner-in-Charge. |
| 28 | Providing and laying HDPE Geocellperforated with horizontal rows of maximum 10mm dia holes , cell perforation area less than 12% of cell surface areahaving 300mm cell depth, sheet valve thickness 1.52 mm as per specficationsincluding all the cost of material, T&P and labour, scaffolding etc. to complete the job as per drawing and direction of Einginner-in-Charge. |
| 29 | Providing and filling graded rounded stone aggregate 40mm down gauge in geocells including the cost of material, T&P and labour, scaffolding etc. to complete the job as per drawing and direction of Einginner-in-Charge. |
| 30 | Providing and laying Geo-grid 200 kn/m underneath the gabion wallsincluding the cost of all labour T&P etc. complete as per drawings, specifications and as directed by Engineer incharge. |
| 31 | Providing and laying non wovenGeo-textile Thermally bended -needle punched made of polytheylene or PP/PE/Similar fibres, having 22 kn/m tensile strength, elongation 32% +5% and CBRpuncture resistance 4300 N and 45 Ltr./m2 sec. permeability complete as per drawings, specifications and as directed by Engineer -in-charge. |
| 32 | Providing and placing in position mechnically woven double twisted hexagonal shaped, zinc plus alluminium alloy and PVC coated steel TMS units of mesh type 10x12 in accordance with International standard EN-10223, EN-10244 of following sizes having tensile strength of wire of mesh- mimum 350 N/mm2, elongation not less than 10%,diameter of mesh wire 2.7/3.7mm, selvedge wire-3.4/4.4mm, lacing wire 2.2/3.2mm including the cost of all labour, meterial, T&P, etc. complete as per drawings, specifications and as directed by Engineer incharge.i) 1mx1mx1m |
| 33 | Providing and placing in position mechnically woven double twisted hexagonal shaped, zinc plus alluminium alloy and PVC coated steel TMS units of mesh type 10x12 in accordance with International standard EN-10223, EN-10244 of following sizes having tensile strength of wire of mesh- mimum 350 N/mm2, elongation not less than 10%,diameter of mesh wire 2.7/3.7mm, selvedge wire-3.4/4.4mm, lacing wire 2.2/3.2mm including the cost of all labour, meterial, T&P, etc. complete as per drawings, specifications and as directed by Engineer incharge.ii) 1mx1mx0.5m |
| 34 | Providing & Filling of stones in TMS units including loading,transporation, unloading, handling, braking to the required size, packing, for all leads and lifts including the cost of all labour T&P etc. complete as per drawings, specifications and as directed by Engineer incharge. |
| 35 | Providing and laying Mac-Tex-N30.2 geotextile (Maccaferi make or equivalent ) inside the ash dyke as per drawing & direction of the Engineer-in-charge including the cost of material, all labour, T&P etc. complete |
| 36 | RCC Hume PipesProviding, laying and fixing in position cement concreteNP-4 Pipe -1000 dia, conforming to lS:458 and laying as per IS:783 (excluding cost of excavation / cutting trench, backfilling the trench with specified material & RCC encasement to be measured & paid separately), placing the pipe in position, jointing materials, cost of jointing pipes, transportation, labour, materials, equipments, all leads and Lifts, dewatering etc. complete as per specification, drawing and as directed by the Engineer. Providing and laying NP4 pipe- 1000 dia |
| 37 | Providing and fixing 150 dia perforated HDPE pipes duly wrapped with non woven geo textile completeas per drawings, specifications and as directed by Engineer-in-charge. |
| 38 | 500 micron HDPE lining including installation and all other associated works |
| 39 | Providing and installing in position the following instruments / settlement monitoring devicesas per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.i) Magnetic settlement gauges |
| 40 | Providing and installing in position the following instruments / settlement monitoring devices ofas per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.ii) Sensing probes for magnetic settlement gauges |
| 41 | Providing and installing in position the following instruments / settlement monitoring devices of as per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.iii) Casargrande piezometers |
| 42 | Providing and installing in position the following instruments / settlement monitoring devicesas per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.iv) Electronic water level indicator for the Casargrande piezometers |
| 43 | Providing and installing in position the following instruments / settlement monitoring devices as per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.v) Settlement markers |
| 44 | Providing and installing in position the following instruments / settlement monitoring devicesas per manufacturer\"s instructions at specified locations on drawings including boring holes and filling specified materials in the hole, making perforations in the pipes, cap for the pipe, jointing of the pipes, etc. including the cost of labour, equipment, materials, transportation to site, etc. complete as per specifications and as directed by the engineer-in-charge.vi) Permanent bench marks |
| 45 | Supplying and forming / filling in layers using approved quality of impervious clayey soil (permeability not more than 1X10-6 cm per second) naturally available or prepared by blending the soil, with minimum 4 percent bentonite (by volume) to achieve a permeability not more than 1X10-6 cm per second, using soil obtained from within the ash pond area or from borrow area arranged by the contractor, including all preparatory works in borrow area, excavation, loading, transporting, unloading, mixing with bentonite, laying in layers not exceeding 30 cm compacted thickness all leads & lifts breaking clods, watering, compaction to achieve a dry density of not less than 98 percent of maximumdrydensity (Standard Proctor) with specified rollers or any other approved mechanical means etc, with all incidental charges, cost of labour equipment, materials, etc. complete as per specification ,drawings and as directed by the Engineer-In-Charge: |
| 46 | Providing Plain Cement Concrete using 40mm & downstone aggregates (crushing value / impact value as per IS:2386) as approved by engineer-in-charge,laying the concrete at all lead/ lift including labour, materials, equipments, handling, transporting, mixing, curing, testing, royalty, etc. excluding form work, all complete as per drawing, specification & direction of Engineer-in-charge.a)M-15 concrete |
| 47 | providing and forming graded stone aggregate filters of size ranging from 10 mm to 75 mm, satisfying the filters ofcriteria with sand filter around the rock, toe including the cost of all labour, material, royalty, equipment in all leads and lifts etc. as per specification, drawing and as directed by the engineer -in -charge. |
| 48 | providing and forming rock toe , rip rap & pitchingwherever required the broken rock of specified quality and ranging in size from 100 mm to 300 mm thickincluding the cost of all labour, materials ,royalty, equipment in all leads and lifts etc.as per specification, drawing and as directed by the engineer -in -charge. |
| 49 | providing and laying grass sod turfing 50 mm thick on slope of embankment/dyke including watering and maintenance of same till the grass forms a thick lawn free from weedsand fit for mowing including suppling good earth and manure and all labour , T & P , safety, supervision etc. completeas per specification, drawing and as directed by the engineer -in -charge. |
| 50 | dismantling of PCC/RCC including the cost of all labour, T&P,scaffolding etc. completeas per specification, anddirection by the engineer -in -charge. |
| 51 | RRMsaonary providing and forming random rubble masonary in 1:6cement mortar ( 1 cement 6 coarse sand) or caping over rock toe & lining of discharge channel with broken rock of specified quality and ranging in size from 100 mm to 300 mm including cost and conveyance of materials, mixing, laying, hand packing it in position, raking joints, curing with all leads and lift, cost of labour, materials, equipments etc. completeas per specification, drawing and as directed by the engineer -in -charge. |
| 52 | providing and installation of 25 mm dia tor steel driven nails , threading on head , providing & fixing of GI chain link mesh 3 mm thick having 100mm x 100mm aperture with 8 mm dia GI hooks on the sloping surface, 200mm x 200mm x 25mm thick MS galvanized bearing plate nuts & bolts P&F of 3 m long drainage pipe 75 mm dia upper half slooted UPVC pipe confirming to IS 4985 wrapped with geptextile at every 20 sqm area including all labour, material supervision , T&P etc. completeas per specification, drawing and as directed by the engineer -in -charge. |
