CONSTRUCTION OFR.C.C BRIDGE AT SANTRABAZAR, MOUZA- DAKSHIN GOPAL NAGAR, GP.- GOPAL NAGAR, IN P.S. & BLOCK-PATHARPRATIMA, UNDER CED-II, SUNDARBAN DEVELOPMENT BOARD.3RDCALL; 1 Laying and Jointing PVC Pipe. Heading 2 A.Dismantling of existing wooen bridgeDismantling Wood Work Wrought and Planed Fixed in Frames of Trusses upto a height of 5 m above Plinth Level as per Technical Specifications Clause 202 for Rural Roads of MORD. 3 B. Cost for Bridge Proper , Approach viaduct & Retaining wall(I)Earthwork in foundation & Service roadEarth work in excavation of foundation of structures as per drawing and technical specification, including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches, leveling, dressing and ramming the bottom, complete as per direction of the Engineer-in-Charge.By Mechanical means. I. In all sorts of soil excluding marshy soil & rocks(soft or hard) by manual means.a) upto 3 m depth(ii) With pumping out water excluding shoring 4 Sand filling in foundation trenches and at the back of abutments, wing-walls etc. with medium sand of approved quality free from earth in layers not exceeding 15 cm. including inundating each layer by profuse water and poking and ramming layer by layer complete including supply of sand. Quality of sand is to be approved by the Engineer-in-charge. 5 Providing and laying of Filter media with granular materials/stone crushed aggregates/brick aggregates /river bed materials satisfying the requirements laid down in clause 2504.2.2 of MoRT&H Specifications to a thickness of not less than 600 mm with smaller size towards the soil and bigger size towards the wall and provided over the entire surface behind abutment, wing wall and return wall to the full height compacted to a firm condition complete as per drawing and technical specification. 6 Providing and constructing Temporary Service Road of width not less than 3.75 m over river for movement of men, equipment and construction machineries from one pier / abutment location to another pier / abutment location considering necessary stability and safety aspects by providing and driving suitable piles, providing fitting, fixing suitable R.S. Joist, Channels, angles and wooden sleeper as per design requirement including dismantling and taking out the entire service road after construction. ii) With R. S. Joist Pileb)Height of deck above bed level above3.25 m & upto 4.25 m. 7 Cost of boring using drilling mud to stabilized the bore and flushing the bore of excess mud with fresh drilling fluid for the portion of the pile above cutoff level and up to the level of island for providing RCC cast in situ bored pile in position including the cost of mobilization and hire charges of all equipment necessary for boring. Using tripod, winch. 1200mm dia pile 8 Construction of Temporary Island by construction of outer annular layer with two rows of bullahs, suitable spaced, of dia. not less than 150 mm, driven at least half of the total length, properly tied, braced and supported and filling the annular space with sand / soil filled bags, protected by drum sheet walling on both side and filling the core portion with locally available materials including the dismantling, removing and cleaning the site of the construction of main component of the structure. Area of Island between 120 sqm.- 140 sq.m a) Height above bed level upto 4.25 m. 9 Making of cofferdamby driving of steel casing pipe of 500 dia and 6mm thk into the river bed upto required depth incl. cost & carriage of all material , fabrication, handling etc. complete as per direction of Engineer-in-Charge.[ For construction of Temporary platform where depth of water more than 4.25m ] 10 Supplying and providing Silver sand inside the MS casing pipe of 500 dia upto required depth incl. cost & carriage of all material , labour etc. complete as per direction of Engineer-in-Charge. 11 Hire charges for making steel gangway (including cutting to size,forging, drilling holes, welding, riveting, bolting to make built up steel girder or plate girder including stiffener, bracing ties etc. all complete, including the cost of steel members or plates and the cost of bolts, nuts, rivets, welds etc.), transporting to site, hoisting and placing in position all complete.[ For construction of Gangway platform where depth of water more than 4.25m ] 12 II.Foundation ( Pile & pile Cap )Providing and laying Design Mix concrete for plain / reinforced concrete work in any part of bridge (excluding bottom plugging) with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement, as necessary, including labour, cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete but excluding cost of labour and materials for formwork & reinforcement works. M 15Concrete 13 Hire and labour charges for Shuttering with or without staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steel sheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, crossdrain etc. The rate is inclusive of fitting, fixing and striking out after completion of work as per specification and direction.(b) Where staging is not required. 14 Cement Concrete for Reinforced Concrete in Pile Cap complete as per drawing and Technical Specification. Using Batching Plant, Transit Mixer and Concrete Pump. M 30 grade 15 Providing Bored Cast-in-situ R.C.C. pile in position as per specifications in all kinds of soil including cost of boring using drilling mud to stabilize the bore and flushing the bore of excess mud with freshly repared drilling fluid by using pumps prior to placing concrete by tremie pipe in one continuous operation and including the cost of all materials and labour for placing of concrete and also including the cost of mobilization and hire charges of all equipment necessary for boring, welding of reinforcement cage as necessary and lowering of reinforcement cage, preparation and placing of concrete, including the cost of concrete but excluding the cost of reinforcement and labour for bending binding etc. complete as per Drawing and Technical Specifications and removal of excavated earth with all lifts and lead upto 1000 m. Work to be executed as per IS: 2911 (Part II Sec 2). 1200mm dia pile, Conc. Grade M35. 16 Providing MS casing pipe around RCC cast-in-situ bored piles of different diameters in position including cost of all materials, fabrication, handling etc. complete as per direction of Engineer-in-Charge.) 17 Supplying, fitting and placing uncoated HYSD bar reinforcement of grade Fe 500/Fe 500D in Bridge Foundation including initial straightening, straightening of coils bars, removal of loose rust (if any), cutting to requisite length bending, binding with annealed wire not less than 1 mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. including cost of black annealed wire and cost of loading, unloading, carriage of all steel materials complete as per drawing and technical specifications and direction of Engineer-in-charge. Steel used shall meet the requirement of section 1000 of MORTH specification.Pile & pile cap 18 Mobilisation Charges of all tools & Plants along with accessories, material, labour, supervision etc. at site of work required in connection with boring and testing work,ncluding setting up boring rigs and shifting to different Bore-hole points etc. and also including withdrawal of same from the site after completion of work, complete as per direction of Engineer-in-Charge.(b) Detailed Investigation 19 Carriage of all Disturbed & Undisturbed Samples from site of work to the Divisional office or elsewhere includingading and unloading as per direction of Engineer-in-Charge. Detailed Investigation. 20 Labour for making Bore-Holes of 150mm to 250mm dia. by any standard method to any depth below ground level / bed level in all kinds of soil like clay, silt, sand, stiff clay, mixed soils etc. except rocks (for the purpose of collecting Disturbed & Un disturbed soil samples, conducting Standard Penetration Test at suitable intervals etc.) including preparation and submission of bore-log as per IRC : 75 and 78 and Clause 2400 of Specifications for Road & Bridge Works (5th Revision), Published by IRC, and also including hire charges of tools and plants completeas per the direction of Engineer-in-Charge.a) When Casing pipe is used to prevent collapse of bore hole (casing pipe to be finally withdrawn)i) Depth 0m to 10m 21 b) When drilling mud “Bentonite of suitable consistency” is used to prevent collapse of bore hole :Depth greater than 10 m and upto 20 m 22 iii) Depth greater than 20 m and upto 30 m 23 iv) Depth greater than 30 m and upto 40 m 24 c) Extra for boring in water (1.2m and higher depths). 25 Field Investigationiii) Collection of Samples from the bore hole made as per B-a(a) Undisturbed 26 (b) Disturbed 27 Standard Penetration Tests (S.P.T.) by Split Spoon Sampler in the bore hole as per IS 2131.i) 0.0m-10.0m 28 ii) 10.0m-20.0m 29 iii)20.0m-30.m 30 Laboratory Investigation:i) Liquid Limit as per IS 2720 (Part – V). 31 ii) Plastic Limit as per IS 2720 (Part – V) 32 iii)Grain size analysis by Sieving as per IS 2720(Part – IV). 33 iv)Grain size analysis by Hydrometer Method as per IS 2720 (Part – IV). 34 v)Determination of Water Content as per IS2720 (Part – II). 35 vi)Determination of Specific Gravity as per IS2720 (Part – III). 36 vii)Direct Shear Test as per IS 2720 (Part – XIII). 37 xiv)Determination of Unconfined CompressionStrength as per IS 2720 (Part – X). a) Undisturbed 38 Tri-Axial Shear Test.Determination of Shear strength Parameters of a specimen tested in Unconsolidated Undrained Tri-axial compression without measurement of pore water pressure as per IS 2720 (Part –XI). 39 Laboratory Determination of Permeability asper IS 2720 (Part– XVII). 40 Preparation and submission of report in 6 (Six) copies, giving all relevant information data like site plan, Bore log and water table, test results, calculations, discussions, suggestions and recommendations in respect of suitable foundation etc. includinDetailed Investigation : 41 Performing Pile Integrity Test on randomly selected piles (1000 mm dia) as per IRC/IS specification and direction of Engineer-in-charge. 42 Performing Vertical load test on single Pile in accordance with IS:2911(Part-IV) by hydraulic jacks on pile/piles with 1.5 times the design load including preparation of the head of piles with concrete of required strength for receiving the jacks with all ancillary arrangements for setting up gauges, construction of suitable platforms, keeping the loads and dismantling and removing all arrangement etc. complete as per IS specification and direction of Engineer-in-chargeTesting load 150T to 200 T. 43 Performing Initialon single Pile in accordance with IS:2911(Part-IV) by hydraulic jacks on pile/piles with 2 to 2.5 times the design load including preparation of the head of piles with concrete of required strength for receiving the jacks with all ancillary arrangements for setting up gauges, construction of suitable platforms, keeping the loads and dismantling and removing all arrangement etc. complete as per IS specification and direction of Engineer-in-charge.Testing load between 250 T and 300 T. 44 Performing High Strain Dynamic Pile Load testing by using Pile Driving analyzer as per IRC: 78.2014 standard procedure with a hammer of suitable weight (1·2% of the test load or 5·7% of the dead load on the pile or suitable energy as decided by Engineer-in charge). The rate is inclusive of construction of suitable platform, fixing of strain sensor & accelerometer, charges for hammer holstinq arrangement & removing etc. The rate is also inclusive of cost & carriage of all materials, completion of field test, CAPWAP analysis & submission of test results along with reports as per direction of Engineer.in.charge.b)For Test load 101 to 300 MT ii)From 60-150 Km of Rajbhaban 45 Performing Lateral load test on two piles or two groups of piles by introducing a hydraulic jack with gauge between two piles or pile groups under test by applying horizontal loads in increments of about 20% of the estimated safe load at each stage and applying the next increment after the rate of displacement is nearer to 0.1 mm. per 30 minutes till the total displacement becomes, 12 mm at the cutoff level luding the cost of arranging the entire set-up, hire charges of all implements including at least two dial gauges,reparing the pile head if necessary, and removal of all arrangement after completion etc. complete in all respect including cost of carriage of all materials and as per ISspecification and direction of Engineer-in-charge. 46 III.SUB-STRUCTUREPlain / Reinforced Cement Concrete in Substructure with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality, cement and water reducing admixtures, as necessary, including labour, cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete as per drawing and technical specification including the cost of necessary form work and staging complete as per drawing and technical specifications.)M 30 concrete With Batching Plant, Transit Mixer and Concrete Pump (ii)5m to 10m Height 47 Supplying, fitting and placing uncoated HYSD bar reinforcement of grade Fe 500/Fe 500D in Substructure including initial straightening, straightening of coils bars, removal of loose rust (if any), cutting to requisite length bending, binding with annealed wire not less than 1 mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. including cost of black annealed wire and cost of loading, unloading, carriage of all steel materials complete as per drawing and technical specifications and direction of Engineer-in-charge. Steel used shall meet the requirement of section 1000 of MORTH specification. 48 Providing weep holes in Brick masonry / Plain / Reinforced concrete abutment, wing wall / return wall with 100 mm dia AC pipe, extending through the full width of the structure with slope of 1V:20H towards drawing face. Complete as per drawing and Technical specifications. 49 Supplying, fitting and fixing in position true to line and level Elastomeric bearing conforming to IRC: 83 (Part-II) Section IX and Clause 2005 of MoRT&H specifications complete including all accessories as per drawing and Technical Specifications. 50 IV.SUPER-STRUCTUREFurnishing and Placing Reinforced /Prestressed Cement concrete in Super-Structure with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement and admixtures, as necessary, including labour, cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete as per drawing and technical specification including the cost of necessary form work and staging/casting truss complete. as per drawing and technical specifications. M 30 grade, I) Using concrete Mixer, (i) For solid slab super-structure,(ii)5m to 10m Height 51 Furnishing and Placing Reinforced /Prestressed Cement concrete in Super-Structure with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement and admixtures, as necessary, including labour, cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete as per drawing and technical specification including the cost of necessary form work and staging/casting truss complete. as per drawing and technical specifications. M 30 grade, I) Using concrete Mixer, (i) For solid slab super-structure,(i) Upto 5.0m. 52 Supplying, fitting and placing uncoated HYSD bar reinforcement of grade FE 500/Fe 500D in Bridge Super-structure including initial straightening, straightening of coils bars, removal of loose rust (if any), cutting to requisite length bending, binding with annealed wire not less than 1 mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. including cost of black annealed wire and cost of loading, unloading, carriage of all steel materials complete as per drawing and technical specifications. Steel used shall meet the requirement of section 1000 of MORTH specification. 53 Providing and laying Cement concrete Wearing coat M-30 grade with graded stone chips 19mm down including screening and cleaning approved stone chips and sand as necessary laying, finishing complete to camber and grade, curing with water, including cost and carriage of all materials and hire charges for form work including reinforcement complete as per drawing and Technical Specifications vide clause no. 2702 of MoRT&H’s Specification for Road & Bridge Works. 54 Construction of precast RCC railing of M30 Grade, aggregate size not exceeding 12 rnm. true to line andgrade, tolerance of vertical RCC post not to exceed 1 in 500,centre to centre spacing between vertical post not toexceed 2000 rnrn. leaving adequate space between vertical post for expansion, complete as per MoRT&Hstandard drawing no 50/202 and technical specifications 55 Drainage Spouts in Superstructure including providing drip mouldings and also including supplying, fitting and fixing approved type of materials complete as per drawing and Technical specification vide clause no. 2705 of MoRT&H’s Specification for Road & Bridge Works. 56 Strip Seal Expansion Joint Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 70mm, complete as per approved drawings and standard specifications to be installed by the manufacturer/ supplier or their authorised representative ensuring compliance to the manufacturers instructions for installation. 57 Painting the vertical end faces of posts, wheel guardsor railing or parapet with alternate bands of differentcolours as directed by the Engineer-in-charge withapproved synthetic enamel paint. b) Two Coats 58 Cement concrete M 15 grade levelling course below approach slabs complete as per drawing and Technical Specifications. ( Item no. 32 (a) / page 222 of WB SOR for Road works bridge & culvert works ) 59 Hire and labour charges for Shuttering with or without staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steel sheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, crossdrain etc. The rate is inclusive of fitting, fixing and striking out after completion of work as per specification and direction.(b) Where staging is not required. 60 C.FOR APPROACH ROAD I. EARTH WORKSClearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specifications Clause 201 for Rural Roads of MORD. 61 Construction of Embankment with Material Obtained from Borrow Pits Construction of embankment with approved material obtainedfrom borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 4000 m as per Technical specification Clause 301.5 for Rural Roads of MORD. 62 Construction of Embankment with Material Obtained from Borrow Pits Construction of embankment with approved material obtainedfrom borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical specification Clause 301.5 for Rural Roads of MORD. 63 Loosening, Leveling and Compacting original ground supporting embankment to facilitate placement of first layer of embankment, scarified to a depth of 150 mm, mixed with water at OMC and then compacted by rolling so as to achieve minimum dry density as given in Tables 300.1 and 300.2 for embankment construction as per Clause 305.3.4 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). 64 Construction of Subgrade and Earthen Shoulders Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1 for Rural Roads of MORD. 500mm thick 65 II.SUB-BASES, BASES ( NON- BITUMINOUS) AND SHOULDERSBy Mix in Place Method :Construction of granular sub-base by providing graded material, mixing by mix in place method with Rotavator at OMC, spreading in uniform layers with Motor grader on prepared surface in proper grade and camber, compacting with vibratory roller to achieve the desired density, including lighting, guarding, barricading, including cost of all materials, machinery, tools and plants including cost of quality control complete as per Clause 401 of Specifications for Road & Bridge Works of MoRT&H (5th. Revision).(iii) Grading – V 66 Wet Mix Macadam Base CourseProviding, laying, spreading and compacting graded stone aggregate to Wet Mix Macadam specification including screening of aggregates and granular materials, premixing the material with water at OMC in Wet Mix Plant, carriage of mixed material by tipper to site, laying in uniform layers with Paver in Sub- base / Base course on well prepared surface and compacting with Vibratory Roller to achieve the desired density, including supply of all materials, machinery, fuel and lubricants, including incidental costs for lighting, guarding, barricading, making earthen bundh to protect the edges including cost of quality control complete as per Clause 406 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). 67 III.Pavement works100 mm thick interlocking designer concrete paver block M-50 grade for hightraffic zone, bus terminus, industrial complex, mandi houses etc. as per IS: 15658- 2006 (over 20-40 mm medium sand bed on 250mm thk WBM/ WMM base course & 250 mm thk bound gnaular/ granular sub-base course & filling the interstices of blocks with fine sand by brooming & subsequent watering including cost of sand for sand bed but excluding cost of base, sub-base course & subgrade preparation.) complete as per direction of Engineer-in-Charge. [Note: Subgrade CBR shouldnot be less than 5] Colour Decorative 68 IV. MISCELLANEOUS WORKSProviding and erecting direction and place identification retro-reflectorised sign as per IRC:67 made of high intensity grade sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick with area not exceeding 0.9 sqm supported on a mild steel single angle iron post 75 x 75 x 6 mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45 x 45 x 60 cm, 60 cm below ground level as per approved drawing and Clause 801 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).. 69 V. Lighting on BridgesStand Alone Solar PV Street Lighting System (18 W LED Light)a) 6 meter G.I. Poleb) 1 X 100 Wp Si PV Module. C) 1 X 42Ah 12.8V LITHIUM FERRO PHOSPHATE ( LiFePO4 ) Battery d) 1 X 18 W LED LuminariesCost including Supply, Transpotation, Installation, Commissioning and 05(five) years overall warranty of the system.Onsite Comprehensive Maintenance during the warranty period shall be applicable for all places of West Bengal. 70 D. PROTECTIVE WORKSProviding and laying Filter material underneath pitching in slopes complete as per drawing and Technical specification. 71 Providing and laying Pitching on slopes with Cement Concrete Blocks of size 0.3x0.3x0.3m cast in M15 grade concrete laid over prepared filter media including boulder apron laid dry in front of toe embankment complete as per drawing and technical specification. 72 Turfing with Sods Furnishing and laying of the live sods of perennial turf forming grass on embankment slope, verges or other locations shown on the drawing or as directed by the Engineer including preparation of ground, fetching of sods and watering as per Clause 307 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). 73 Supplying fitting and fixing R.C. guard post 1.37m long with C.C. 1:2:4 with graded stone chips of 13.2mm down casting , curing complete including cost of providing 4nos.of 12mm dia. rod of length 1.54m as main reinforcement and 6 nos. of round shaped 8mm dia rods used as binders; the placing of the first binder should be at 75mm below the top finished surface and the other 5 nos of binders should be placed at 245mm c/c ; the guard post is of octagonal section with inscribed circle of dia 24cm at the base tapering to corresponding dimensions of 16cm at the top including two coats of painting with best quality synthetic enamel paint of approved make and grade to form 6 nos. horizontal alternate bands in white/tannery yellow and black to 90 cm length standing up above ground after mendinggood damages if any during striking off shuttering,making hole in ground of 47cm depth and 30cm. minimum dia, fixing the guard posts in the same holes and repacking the earth properly so as to keep the guard posts standing properly erect in correct position true to line and length including carriage of R. C. Guard Post with due care to the site including loading into the truck and unloading at site complete in all respect.
