particular specifications (road works) - CIDCO Maharashtra Ltd.

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CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 464 execution of the work in the vicinity of such building. If the Engineer shall require the adoption of any special or extra measures or precautions, the contractors shall forthwith adopt and supply the same, but this provision is not to be read or understood as in any degree of relieving the contractors from responsibility or from liability under Clause 54 of General Conditions of Contract, in respect of claims made against the Corporation by for loss or damage which may be caused to any such building by the execution of any of the works or otherwise. After the work is completed near buildings, the contractor shall remove any shoring and make good any cutting out or other damage that may have been done. 17.0 VENTILATION The contractor shall provide adequate ventilation and efficient apparatus to keep all excavation, trenches tunnels and headings structures, sewers and manholes free from all gases whether generated in strata arising from the use of explosive for blasting sewage gases or otherwise and he shall take precautions to ascertain that they are in a safe condition before allowing workman to proceed. 18.0 PUMPING OUT WATER The contractors shall provide and work at their own cost all pumps engines and machinery requisite to keep the trenches for the sewers, drains or foundations and all other excavations clear of water, whether sub-soil water, storm water, leakage from tanks, wells drains, sewers, water mains, tide water etc. so that there may be no accumulations of such water and that no setting out may be done, no masonry may be laid, no concrete deposited, no joints made and
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 465 no measurements taken in water. The pumping shall be continued so long after execution of any portion of work and repeated so after as the Engineer may consider as necessary. The pumps and power applied must be such as the Engineer may determine to be sufficient at any particular time, so he may himself supply pumps and power at contractor's expenses, so he may stop the work together until he is satisfied and also impose a fine upon the contractors. The rate excavation includes pumping out any quantities of water as mentioned above by using any number of pumps and for any length and time singly or in combination. Nothing extra, whatsoever, will be paid on this account during the execution of the whole work. 19.0 KEEP EXCAVATION CLEAR OF WATER a) Where ground water is encountered or anticipated, the contractor shall provide sufficient pumps to handle the ingress of water and must provide and maintain in working order stand by pumping units to be available and employed in the event of mechanical failure. The contractor must also arrange for night and day manning and operating of the pumps wherever necessary to ensure that at all times and weather the work may proceed. b) The contractors shall not allow any accumulation of water either from the discharge of their dewatering pumps or their water connection on the site of their work. If an accumulation is unavoidable, it shall be treated with insecticides to the satisfaction of the Engineer. In case of failures to do this on the part of the contractors, such accumulation shall be treated by CIDCO at the cost of contractors.
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