Construction of solar powered MDTW scheme at village Katlitari under RIDF-XXVIII (NABARD) for the year 2022-23.

Amount

BORING, DEVELOPING AND INSTALLATION OF SOLAR PUMP AND ACCESSORIES

Movement of Drilling Rig, Tools & Plants, Accessories including Drill Pipes, Casing Pipes, etc. to drilling site and back.

Boring of DTW of bore hole up to 450 mm dia and up to a depth of 70 M or up to required depth by RC/DR Drilling Rig including supply and transportation of all required Tools & Plants, materials & Labour to site to perform the job in complete as directed in alluvium areas (means areas where the strata comprises of loose, unconsolidated materials like clays, silts, sands gravels, pebbles, cobbles and boulders) as per IS: 2800 (part-I) of 1991. ( Soil sample must be collected & keep properly at every 3.00 M interval of depth in boring. The job also include movement of Rig by making temporary approach road etc. to the field up to distance of 1000 M.)

Supply, Lowering & Installation in tube-well 200 mm PVC housing pipe/ Blind pipe of wall thickness of 10 mm to 11.2 mm for casing assembly including supply of well cap, Bail Plug, sockets , reducer, MS housing clamps etc. as required as per IS : 12818-1997 of length 3.00 M of repute brand like Oriplast/ Jindal/ Prince, etc. and as directed. (Litholog Assembly diagram must be approved by Engineer-in-Charge of the work prior to installation)

Supply, Lowering & Installation in tube-well 200 mm PVC Ribbed Screen Filter pipe of wall thickness of 10 mm to 11.2 mm for casing assembly including supply of sockets , reducer, etc. as required as per IS : 12818-1997 of length 3.00 M/ 2.00 M of repute brand like Oriplast/ Jindal/ Prince, etc. and as directed. (Litholog Assembly diagram must be approved by Engineer-in-Charge of the work prior to installation).

Shrouding of the DTW assembly by river pea gravel of size 4 mm to 8 mm , free from sand/ dust and any other foreign materials after screening/ stacking at site including supply, transportation, labour, etc. in complete as directed. (Work to be carried out as per IS: 4097 : 2008).

Developing the tube well assembly by Air-Compressor of capacity 8 – 12 kg/cm2 and CFM = 450 M3/Min so as to get sand free discharge of water with supply of all required materials at site complete as directed including furnishing of litho log / draw down data, etc. as per IS:11185 of 1999. (For new DTW minimum 72 hours development is compulsory. Additional pea gravel required if any, during development would be extra as per [4.1]. The following data should be reflected in the report of development : 1. Static water level. 2. Drawdown at various discharge and 3. Available average discharge.

Supply & Installation of Solar Pumping System: (a) Solar Submersible Standalone Pump set with 7.5 HP AC Induction motor and Solar Power Controller Unit ( Conform IEC 6168311:1999) with overload, over-under voltage, short circuit protection, suitable for 200 mm bore well and discharge capacity approx 1400 LPM at 10 M head (Dynamic Head Range 10-20 Mtr and Shut off head 30 M) working at 8000 Wattp of solar power along with Cables, Inverter external box, surge suppressor, DC MCB & all necessary accessories like, 2(two) pairs of Assembly support clamps, 10(ten) nos. of Cable clamp / clip, 1 (one) no. of Delivery bend, 20(twenty) mtr. column pipe, 1(one) no. of Short pipe of 1.5 Mtr. length of required diameter, 40(forty) mtr.(approx.) Flat flexible cable (motor to controller) as per latest MNRE norms and as per IS. (b) Supply, fitting-fixing and testing & commissioning of Solar PV modules conforming to IEC 61215 specification or equivalent National or International standards consisting of solar panels framed in anodized aluminium frame of 8000 Wp (approx.) considering 7.15 kWh/ M2/ Day of solar insolation under standard test condition on horizontal surface with tolerance (+/-) 15% and hot dipped galvanized(minm 80 micron thickness) mounting mild steel structure of rectangular hollow sections, angles, heavy duty pipes of dia 150 mm (all materials duly IS marked ) for providing sufficient strength with dual axis manual tracking arrangement which can withstand load of modules and high wind velocities upto 150 Km/hr including RCC foundation designed against all possible loads (Dead, Live and imposed load), Controller conform to IEC 61683–1999 & IEC 60068-1-2, IEC 60068 – 2- (2, 14, 30, 78) ( The series and parallel combination of Solar Modules to be done in such a way that Jalverter/ Controller input voltage requirement is met i.e. System Vmp> 587 V & System Voc< 800 V) and necessary connection cables, pipes to the water trough and other accessories, etc. complete in all respect as directed (Controller to be installed with suitable arrangement on the body of the pole of mounting structure with rain proof provision. SPV panel should be of reputed make like TATA/Bikram/ Waaree etc. and carry at least 20 years warrenty & comprehensive maintenance for 1 year and should installed preferably above HFL) (c) Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. Below the ground level as below: (a) By ISI-Medium GI pipe including excavation of soil for installation of Earth Electrode and filling & ramming and connecting to individual structure to earth electrode including S&F 20 mm x 3 mm galvanized (Hot Dip) MS flat on wall/floor with GI saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc. (d) Lightning protection (Arrestor)(pole mounted)(: Lightning protection with 3" X 1.5" G.I pipe of 4 mts height with base flange in proper RCC foundation and S & F Lightning Conductor Air Terminal made of 20 mm dia 1000 mm long GI pipe (ISI Medium) having five discharge prongs of 4 SWG GI (Hot Dip) wire at top duly soldered with 7/16 stranded GI (Hot Dip) wire and 85 mm dia 6 mm thick GI base plate at bottom incl. necessary holes etc including supply & fixing GI (Hot Dip) strips 20 mm x 3 mm thick for horizontal run on the /Roof with GI Saddles 1100 mm apart. NB :- 1. Solar Pump set should be of reputed make and carry 5 years warranty/ guarantee 2. Flow Range : 90 L per Wp of PV array from TDH of 10 M 3. Controller DC Input Voltage: (i) System Vmp> 587 V & (ii) System Voc< 800 V 4. Controller Conforming to : IEC 61683–1999 & IEC 60068-1-2,IEC 60068–2-(2,14,30,78) (Rate As per MNRE Circular No. 32/24/2020-SPV Division, dt-26/10/2021 including cost of remote monitoring & USPC) This benchmark cost are for the systems installed as per MNRE specifications inclusive of the total cost of system and its installation, commissioning, transportation, insurance, warranty/guarantee, monitoring & maintenance for five years.

Supply, Fitting-fixing of Heavy duty CIDF sluice valve inside screw, non raising, vertical spindle type with hand wheel operation, need for water purpose. The rotation of closing should be counter clock wise. The holes of the flange should be drilled as per BSS No. 10, part-I, Table-D. All materials construction and components should strictly conform to IS: 14846 – 2000 and having marked with manufacturers name and trade mark in the delivery pipe layout as directed/ as per drawing along with HD GI flange, pipe jointing materials and painting in complete as directed. (i) 100 mm Dia

Supply, Fitting-fixing of Heavy duty CIDF Reflex valve, swing check type, with by pass arrangement, horizontal operating. The holes of the flange to be as per BSS No. 10, Part-I, Table- D and the material, construction and all components should strictly conform to IS : 5312 (Part-I) – 2004 and having marked with manufacturers name and trade mark in the delivery pipe layout as directed/ as per drawing along with HD GI flange, pipe jointing set and painting in complete as directed. (i) 100 mm dia

Supply, fitting-fixing of delivery pipes of 80/100 mm dia GI / fabricated GI pipes ( HD of repute brand with ISI marked) with flange at both end / wherever required with pipe jointing sets, including painting in complete as per drawing / specification including temporary pipe support as required and as directed.

Fitting-fixing of MS / GI bend of 80/100 mm dia x 45° / 90° / 120° with GI / fabricated GI pipes with flange at both end and pipe jointing sets, including painting as per drawing / specification as directed.

Supply of GI equal Tee of 80/100 mm dia complete as directed.

Fitting, fixing of GI equal Tee of 80/100 mm dia complete as directed.

Supply, fitting-fixing of Surge Tank of size 900 mm dia x 1250 mm long made of 4 mm MS plate with Raiser assembly of size 75 mm dia x 6.0 M long and S-bend of size 200 mm x 1600 mmL made of 4 mm MS plate including painting the above with one coat of synthetic enamel primer followed by 2 (two) coats of successive synthetic enamel/ bituminous black paint and made provision for mounting the surge tank on a specified CC foundation by nuts & bolts of suitable size as per drawing & specification as directed.

Construction of Approach Road

Earthwork in filling in all soils in plinth, canal embankment and bed filling as per design section and grade by truck carriage for a minimum distance of 4 KM including paying compensation of earth obtained from private land if any loading, unloading, spreading the same including light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the embankment, breaking clods not more than 10 mm cube, ramming, profiling etc. with all lift, complete as directed. (Payment will be made after deduction of 12.50 % shrinkage allowance from the gross quantity).

Collection of sand gravel (40% sand and 60% gravel of size 25 mm to 60 mm) free from dust and dirt including stacking in measurable stacks at quarry site and making payment of forest royalty etc. as directed complete.

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site, complete as directed.With Contractor's Profit & GST. i) For 1st KM of quarry road.

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site, complete as directed.With Contractor's Profit & GST. ii) For subsequent KM after the quarry road.

Labour charge for spreading of hard river gravel or broken stone of size 13 mm to 38 mm to the required thickness including dressing and ramming the seat before laying the materials as directed with a lead upto 30 M and lift upto 1.5 M, complete as directed.

Construction of Rest Room

Earthwork in excavation trenches of walls, retaining walls, footing of columns, steps and septic tank including refilling (return filling) the quantity as necessary after completion of works, breaking clods in return filling, dressing, ramming, watering etc. and removal of surplus earth with all lead and lift upto 2 metre as directed and specified in following classification of soils, including bailing out of water where necessary upto depth below the existing ground level as mention in the approved drawing and as directed and specified.

Soling in foundation at all levels including filling intersides, ramming etc complete as directed and of specified thickness with 9 cm brick on flat including sand packing.

C.C work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc.with hard broken stone agg. of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc.where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

1st class brick work in cement mortar in abutment and wing wall, parapet wall etc.including racking out joints and curing etc. complete. (a) In proportion 1:3

:River sand filling in plinth, canal bed, canal slopes, bases of structure, etc in layers not more than 150 mm thick including necessary carriage, watering etc, complete as directed as specified.

62 mm thick cement concrete flooring with concrete hardener topping, under layer 50 mm thick cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size) and top layer 12mm thick cement hardener consisting of mix 1:2 (1 cement hardener mix : 2 graded stone aggregate, 6mm nominal size) by volume, hardening compound mixed @ 2 litre per 50 kg of cement or as per manufacture’s specifications. This includes cost of cement slurry, but excluding the cost of nosing of steps etc. complete.

Supplying fitting fixing and laying reinforcement (TATA) in position in RCC work including cutting, bending, cranking with two piles 0.91 M (20 BWG) annealed wire hooking tying complete as directed.

Centering and shuttering including propping etc where necessary and removal of forms after completion of CC and RCC works as directed complete. (Measurement to be taken on the face area timbered). i) Shuttering work for Column.

Centering and shuttering including propping etc where necessary and removal of forms after completion of CC and RCC works as directed complete. (Measurement to be taken on the face area timbered). ii) Shuttering for beams without props.

R.C.C work in slab, abutment cap and above abutment, pier cap, pedestal, dirt wall etc. in proportion 1:2:4 (M15) with hard river shingles of size 6mm to 20mm with proper reinforcement as per design including necessary curing etc. complete as directed with necessary timber shuttering, scaffolding etc. where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

12 mm cement plastering including clearing surface and curing complete as directed. In prop.1:3

Steel work in built up tubular (Round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished welded type tubes. a) Using TATA make RHS/SHS of Grade 310 conforming to relevant I.S. code 4923 : 1997.

Providing corrugated G.S. sheet roofing including vertical / curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to 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. 0.80 mm thick with zinc coating not less than 275 gm/m².

Providing and fixing 1mm thick M.S. sheet door with frame of 40mm x 40mm x 6 mm angle iron and 3 mm M.S. gusset plates at the junctions and corners, all necessary fittings complete, including applying a priming coat of approved steel prime. Using flats 30x6mm for diagonal braces and central cross piece

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gms/litre, of approved manufacturer, of required shade and colour complete, as per manufacturer's specification. Two or more coats on new work.

Finishing walls with Acrylic Smooth exterior paint of required shade. New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat, preparation of surface, etc. complete. On steel work.

Under ground PVC Pipe Distribution System

Earthwork in excavation trenches of walls, retaining walls, footing of columns, steps and septic tank including refilling (return filling) the quantity as necessary after completion of works, breaking clods in return filling, dressing, ramming, watering etc. and removal of surplus earth with all lead and lift upto 2 metre as directed and specified in following classification of soils, including bailing out of water where necessary upto depth below the existing ground level as mention in the approved drawing and as directed and specified.

Supplying, fitting, fixing PVC Pipes (IS 12818, 6 kg/cm2), joining pipes with relevant cement, levelling, testing leakages etc. complete as directed. (Cost of E/W foundation trenches will be paid separately). A) 110mm dia.

Supplying, fitting, fixing PVC equal tee joining with pipes with solvent cement, testing leakages etc. complete as directed. Size 110 mm x 110 mm x 110 mm.

Supplying, fitting, fixing, joining of PVC end cap fitting with solvent cement as per specification including local carriage, testing leakage etc. complete as directed. Size : 110 mm dia .

Supplying, fitting, fixing 110 mm dia NTP valve at the top of PVC rising pipe of spout chamber as per specification including local carriage, complete as directed. Size : 110 mm dia .

Construction of Spout Chamber ( 7 Nos.)

Earthwork in excavation trenches of walls, retaining walls, footing of columns, steps and septic tank including refilling (return filling) the quantity as necessary after completion of works, breaking clods in return filling, dressing, ramming, watering etc. and removal of surplus earth with all lead and lift upto 2 metre as directed and specified in following classification of soils, including bailing out of water where necessary upto depth below the existing ground level as mention in the approved drawing and as directed and specified.

C.C work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc.with hard broken stone agg. of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc.where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

1st class brick work in cement mortar in abutment and wing wall, parapet wall etc.including racking out joints and curing etc. complete. (a) In proportion 1:3

12 mm cement plastering including clearing surface and curing complete as directed. In prop.1:3

Supplying, fitting, fixing 110 mm dia PVC Rising pipe from the toe of main line including local carriage, testing leakage etc. complete as directed.

Supplying, fitting, fixing PVC bend pipe size joining with pipes with solvent cement, testing leakages etc. complete as directed. 110 mm / 90 degree

Supplying, fitting, fixing PVC Pipes (IS 12818, 6 kg/cm2), joining pipes with relevant cement, levelling, testing leakages etc. complete as directed. (Cost of E/W foundation trenches will be paid separately). A) 110mm dia.

Construction of Boundary Wall and Sign board

Earthwork in excavation trenches of walls, retaining walls, footing of columns, steps and septic tank including refilling (return filling) the quantity as necessary after completion of works, breaking clods in return filling, dressing, ramming, watering etc. and removal of surplus earth with all lead and lift upto 2 metre as directed and specified in following classification of soils, including bailing out of water where necessary upto depth below the existing ground level as mention in the approved drawing and as directed and specified.

Soling in foundation at all levels including filling intersides, ramming etc complete as directed and of specified thickness with 9 cm brick on flat including sand packing.

C.C work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc.with hard broken stone agg. of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc.where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

R.C.C work in slab, abutment cap and above abutment, pier cap, pedestal, dirt wall etc. in proportion 1:2:4 (M15) with hard river shingles of size 6mm to 20mm with proper reinforcement as per design including necessary curing etc. complete as directed with necessary timber shuttering, scaffolding etc. where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

Centering and shuttering including propping etc where necessary and removal of forms after completion of CC and RCC works as directed complete. (Measurement to be taken on the face area timbered). i) Shuttering work for Column.

Centering and shuttering including propping etc where necessary and removal of forms after completion of CC and RCC works as directed complete. (Measurement to be taken on the face area timbered). ii) Shuttering for beams without props.

1st class brick work in cement mortar in abutment and wing wall, parapet wall etc.including racking out joints and curing etc. complete. (a) In proportion 1:3

12 mm cement plastering including clearing surface and curing complete as directed. In prop.1:3

Supplying fitting fixing and laying reinforcement (TATA) in position in RCC work including cutting, bending, cranking with two piles 0.91 M (20 BWG) annealed wire hooking tying complete as directed.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. i) In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Supply of sign board made of 1.60 mm thick MS iron sheet fitted with steel frame of size 1.05 m x 0.75 m fixed with 2 Nos. of 50 mm dia GI (Medium) pipes 2.10 m above nad 0.60 m below groaund fitted with C.C work in proportions 1:3:6 and size 0.45 m x 0.45 m x 0.60 m below ground including painting with approved paint including writing letters complete as directed.

Development of land area within the proposed boundary wall

Earthwork in filling in all soils in plinth, canal embankment and bed filling as per design section and grade by truck carriage for a minimum distance of 4 KM including paying compensation of earth obtained from private land if any loading, unloading, spreading the same including light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the embankment, breaking clods not more than 10 mm cube, ramming, profiling etc. with all lift, complete as directed. (Payment will be made after deduction of 12.50 % shrinkage allowance from the gross quantity).

ROHIS UDDIN MOLLAH