CONSTRUCTION OF RCC SUMP IN MALIYA PARA AT JIVAPAR VILLAGE UNDER REJUVINATION PROGRAMME

TALUKA - JAMNAGAR SCHEDULE B GWSSB SOR 2022-23

Qty. Unit Item Rate Per Amount

Preparing structural design of RCC Under Ground / Partially under ground / above high ground level Reservoir of

required capacity as per relevant |.S. standards and constructing the same, including excavation in all types of soil strata

(including rock) including shoring strutting if required, for loose soil / to protect from collapse, casting 100 mm thick

P.C.C. levelling course in M15, Refilling the pit with proper soil and disposing of the surplus stuff at all lead. Including

cement plaster in CM 7:2 with approved water proofing compound to all over inside container (i.e. walls, base, top

slab/dome bottom etc. all). Including all types of labour and material charges of lowering, laying, erecting / hosting and

jointing of pipe assembly to inlet. outlet overflow, washout and bye pass arrangement as per hydraulic design. Providing

and fixing accessories, Ci Manhole frame and cover, water level indicator, adequate cowl type ventilators or lantern type

ventilator with stainless steel jail. RCC chambers for valves. Providing and applying three coats of cement paint /

snowcem to the out side face of structure. It also includes satisfactory water tightness test as per relevant I.S. code and

painting name of scheme and capacity on the tank as per direction of engineer in charge. List of Indian Standards for

Design of GSR / SUMP:- The structural design of GSR shall be in accordance with provisions relevant |.S standards (1)

1.S. 3370 part | & I! 2009 or Its latest revision (1.1) ILS. 3370 part Ill & IV 1965 or Its latest revision (2) 1.S. 456 —

or Its latest revision. (3) _1.S. 1893 — 2000 — 1984 or Its latest revision. (4) _1.S. 875, Part— 1 to 3, 1987 General

Specifications:- (1) Water depth in container shall be adopted as per data of tender. Capacity shall be calculated

excluding free board of the reservoir. If water depth is not specified, the suitable water depth / acceptable to field

engineer in accordance with hydraulic (2) Shape of container (in plan) specified by in data shall be adopted in absence

circular shape shall be adopted. (3) Size shall be fixed as per availability of space (land area) at site / acceptable

engineer in charge. (4) Effect of overlapping of pressure bulbs on soil due near by structure and proposed sump should

be considered. (5) Care shall be taken that no damage should occur to nearby existing structure. Compensation shall be

paid for the same by agency. (6) The minimum concrete grade for RCC shall be M-30.

(7) HYSD Fe 415 / 500 grade reinforcing bars confirming to !.S. 1786 / 1139 shall be considered in design. CRS / TMT

bars, shall be provided. In saline atmosphere corrosion resistance stainless steel / HCR rebar shall be provided. Any

other steel can be used with approval of C.E/ in situation of non availability in market without extra cost. (8) Mini size (or

thick ) of various nts shall be provi as per tender criteria / specifications in absence as per 1.S/ Std. practice of

G.W.S.S.B. Minimum dimensions specified for various components in tender data / specifications shall be provided

without fail. (9) The safe bearing capacity (SBC) shall be referred from SBC test report. In absence of report it shall be

referred from data sheet. If poor soil is found / water table is met with during excavation SBC shall be scientifically

ascertained and design shall be revise, No extra shall be paid for increase in quantity. (10) DI pipes and special shall

only be used if type is not specified in tender. (11) The rate shall include cost of dewatering during excavation making all

arrangement when water table meets within depth. (12) The structure shall be designed properly to resist uplift due to

ground water table specified in data or actual ground water table meets with during excavation. If GWT / Uplift is

mentioned in tender and during excavation it dose not meet 7.5% rate shall be reduced. (13) SS pipes railing shall be

provided over sump perifery when sump height is 2 1.5 meter above ground ievel. (14.a) RCC staircase/RCC Steps

should be provided from GL to sump top slab based on the height of the GSR above/below the ground. (14.6) RCC stair

case with SS railing to be provided inside reservoir container. BB Masonry stair cabin with MS safety door having locking

arrangement to be provided for GSR, Sump and HGLR of capacity more than 7.5 lakhs liter with top slab. If dome is

constructed as top slab then provide minimum opening of 900 mm x 2000 mm with curbing and SS railing around. (15)

Appearance of structure should be aesthetically good looking acceptable te authority. (16) Any change in size, shape,

depth below GL, height above GL, water depth, F.B., size of member etc can be permitted in exceptional case due to site

condition or hydraulic design requirement by C.E. No extra shall be paid for change. (17) Any change in data,

dimensions, shape, water depth, reduction in size if permitted by competent authority and if it reduces, quantity then

payment shall be reduced prorate. (18) When capacity of GSR / Sump is > 20 lakh litres two or suitable compartments

acceptable to executive engineer shall be designed and provided. (19) Agency shall engage qualified (at least graduate)

consulting engineer for designing the structure and he / she shall visit the site for guidance of work. (20) 75% part rate

shall be payable for concrete, reinforcement and plastering items of container until satisfactory hydraulic testing for water

tightness is performed as per tender condition. Till the work shall be treated as incomplete Above conditions / general

specifications Sr. No. 1 to 20 are part and parcei of tender (contact) and prevail over other provisions in tender.

As above Sump without water table (Sub soil water table below foundation) including connection with nearby water

pipeline & Exiting Sump.

Seismic Zone IV

1.00 Nos 50000 Lit. Capacity Jivapar Village 271855.80 Nos

1.00 Nos Providing Three Phase Sub Mono Pump Set SM.-2.2 15552.00 Nos

(360 LPM x 24 Mtr Head x 5.5 HP)

1.00 Nos Providing 5 H.P. DOL Panel Bord. 6924.00 Nos

PVC insulated flat submersible cable as per detailed

30.00 Rmt technical specifications of R/C of GWSSB conforming to IS 38.00 Rmt

I/We am/are willing to carry out the work

ESTIMATED AMOUNT PUT TO TENDER ESTIMATED AMOUNT PUT TO TENDER

Deduct Rs. ______________ % Below Rs. ____________________ % above

Deputy Executive Engineer EXECUTIVE ENGINEER

P H S Sub Division Sign of Contractor P. H. WORKS Dn. No

Jamnagar JAMNAGAR