GAIL (India) Limited

814.1.4 EXCAVATION TO BE TAKEN TO PROPER DEPTHThe trenches shall be excavated to such a depth that the sewer shall rest on concrete as described in theseveral clauses relating there to and so that the inverts may be at the levels given in the sections In badground, the Consultant/Engineer-in-charge may order the contractor to excavate to a greater depth thanthat shown on the drawings and to fill up excavation to the level of the sewers with the concrete, brokenstone gravel or other materials4.1.5 REFILLINGAfter the sewer or other works has been laid and proved to be water tight, the trench or other excavationshall be refilled Utmost care shall be taken in doing this, so that no damage shall be caused to the sewerand other permanent work. The filling in the haunches and up to 75 cms. above the crown of the sewershall consist of the finest selected materials placed carefully in 15 cms. Layers and consolidated. Afterthis has been laid, the trench and other excavation shall be refilled in 15 cms. Layers with materials taken-from the excavation, each layer being watered to assist in the consolidation, unless the Consultant /Engineer-in-charge shall otherwise direct.4.1.6 CONTRACTOR TO RESTORE SETTLEMENT AND DAMAGESThe contractor shall at his own costs and charges make good promptly during the whole period for theworks in hand any settlement that any occur in the surfaces of roads, berms, footpaths, open spaces etc.whether public or private caused by his trenches or by his other excavations and he shall be liable for anyaccident caused thereby. He shall also, at his own expense and charges, repair and make good any damagedone to building and other property. If in the opinion of the Consultant/Engineer-in-charge, he fails tomake good such works with all practicable despatch, the Consultant/Engineer-in-charge shall be at hisliberty to get the work done by other means and the expenses thereof shall be paid by the contractor ordeducted from any money that may be or become due to him or recovered from in any other manneraccording to the law of land4.1.7 DISPOSAL OF SURPLUS SOILThe contractor shall at his own cost shall provide places inclusive of transportation for disposal of allsurplus materials not required to be used in the works. As each trench is refilled the surplus soil shall beimmediately removed and the surface properly restored the roadways and sides shall be left clear.4.1.8 TIMBERING OF SEWERS AND TRENCHESa) The contractor shall at all times support efficiently and effectively the sides of the sewer trenches andother excavations by suitable timbering, piling and sheeting and they shall be closed, timbered in loose orsandy strata and below the surface of the sub soil water levelb) All timbering sheeting and piling with their wallings and supports shall be of adequate dimension andstrength and fully braced and strutted so that no risk of collapse of subsidence of the wall of the trenchshall take placec) The contractor shall he held responsible and will be accountable for the insufficiency of all timberingsheeting and pilling used as also for all damage to persons and property resulting form improper quality,strength, maintaining or removing of the same4.1.9 SHORING OF BUILDINGSThe contractor shall shore up all buildings, walls and other structures, the stability of which is liable to beendangered by the work and shall be fully responsible for all damages to persons or property resultingfrom any accidents4.1.10 REMOVAL OF WATER FROM SEWERS AND TRENCHES