Arresting seepage in spillway Block No 1 to 7 By Hydraulic feed Diamond core Drilling And Col Grouting work at Hiran-2 Irrigation Scheme.

BILL OF QUANTITIES

(A) Percentage Rate Tender (Up to INR 50 Cr. )

Item Description of Item (with brief Quantity Unit Rate In Amount

No specification and reference to figures

book of specifications)

Mobilization & demobilization of

Hydraulic feed diamond core drilling

rigs, Grouting system, casing

pipes,Skilled man power,Cranes ,etc

Ground penetration radar survey on

Top bridge & on Ogee surface to

mapped Reinforcement for finalize

Drilling location.

Concrete core drilling in top slab of

90mm dia to lower M.S casing pipe

up to Ogee top surface including

fixing to facilitate a75 mm dia core

drilling & grouting below Ogee up to

specified depth

Drilling Nx size hole with heavy duty

non-vibrating hydraulic feed

Diamond core drilling in hard rock

UCR Masonry of Spillway dam Ogee

from Top of dam with all tools, plants,

machinery etc as per site condition

Cement grouting with additives at

nominal pressure upto 1 kg/sq.cm as

required in stages of maximum 3 mts

or as per site condition including cost

of all labour, plant, consumables.

5-A Providing and supplying ordinary 630.00 MT 5480.71

portland cement (53 Grade) as per IS

12269 (latest revision) including cost

of carting,Transporting, labour

charges etc. complete.

Ultrafine processed fly ash having

specific surface area of minimum

SM/kg to prepare higly cohesive

grout mix as per direction of

Engineer-in-charge.

Micro-silica having composed of

silicon dioxide (SiO2), collected from

silicon metal and ferrosilicon to

increase strength and durability of

grout mix as directed by engineer-in-

Plasticised expanding grout

admixture for cementitious grouts to

reduces water/cement ratio and

positive expansion of grout as

directed by engineer-in-charge.

Providing and Supplying Sand for

grout mix to pour dilled bore holes by

proper mixing in agitator as per

direction of Engineer-in-charge

Providing and Supplying Plasticizer

for grout mix to pour dilled bore holes

by proper mixing in agitator as per

direction of Engineer-in-charge

Providing and Supplying quick

setting Admixture for grout mix to

pour dilled bore holes by proper

mixing in agitator as per direction of

Engineer-in-charge

Labour Charges per MT of total

material used as per Item No. 5 (A, B,

Redrilling grouted holes from set/

partial set grout for drilling

subsequent stage.

Carrying out packer permeability test

in Pre-drilled holes and calculating

the lugeon value.

(A) Single Packer

Providing and supplying corebox of

GI made suitable for storage of cores

having dia. of 54 mm, four nos. of

compartment and total length of core

box should be 1.00 mt, for easy

handeling as directed by engineer-

incharge including labour charges for

carting to hiran-2 dam.

Carrying out refilling of drilling with

mm size aggegates from bottom to

top and grouting hole with microfine

cement having Particle hole with

microfine cement having particle size

distribution d95≤15 microns.

Fineness by Blane should not be

more than 8000 cm2/gm. Marsh cone

viscosity of material shall be 35 to

seconds (at W/C = 0.5). Marsh cone

test shall be conducted without

addition of dispersing agenct at site

and as per IS 14343. Bleeding of

material shall be less than 3% at

hours. Mode of measurement shall

be for grout consumed. Grouting

shall be carry out with help of 25 mm

PVC perforated pipe with pressure of

5 Bars, rates are including

scaffolding, labour, machine,

material etc as per direction of

engineer-in-charge.

Preparation and Submission of report

of grouting work including graphical

presentation of Borelogs showing

core recovery, lugeon values

showing Pre and Post grouting, stage

wise grout consumption, efficacy of

grouting etc. complete as per

direction of Engineer-in-charge

including submission in 5 hard copies

and soft copy as well.

I/We am/are willing to carry out the work at ..................... % above/below

be written in figures and words) of the estimated rate mentioned above.

Amount of my /our tender works out as under.

Estimated amount put totender Estimated amount put totender

Deduct………% below Add.........% Above

In words In words

(B) For Item Rate Tender (For above INR 50 Cr.):

Item Description of Item Quantity Unit Rate Amount

No (with brief specification

and reference to book of In In

specifications) figures Words

(A) Total Tendered Amount

(B) Rebate on above tendered amount (if any) % (in figure) ……

(C) Net Tendered Amount (A-B) (in figure) ………………………………

1 The Contractor shall exhibit a board with brief details of work as directed by the

Engineer-In-Charge for which no extra payment shall be made.

2 The labour cess will be deducted as per prevailing rules i.e. 1% of the work done.

3 GST and Income tax TDS will be deducted at a source while making payments of bills

4 In all R.C.C. Items in Rate Analysis Standard Cement Consumption has been taken as per

Govt. G.R. NO.: MIS102010/17/K1 Dated:30/07/2018 as stated in S.O.R. therefore in

R.C.C. items where there is a change as per actual mix design the cost of difference of

cement consumption have been deducted from the rate of original item at the rate of

input rate mentioned in all the tender.

Signature of Executive Engineer

Contractor Gir Somnath Irrigation Division