CONSTRUCTION OF PLANT BUILDINGS AND ALLIED CIVIL WORKS AT IOCL s PROPOSED DEPOT AT SEKERKOTE, AGARTALA, TRIPURA

a) The prices for all excavations are to include for removing and clearing away all shrubs, bushes, roots, removal of RCC posts/marker etc. The RCC posts must be removed properly and good condition RCC posts may be stacked at designated place inside the premises as directed by the site-in-charge. b) The prices are also to include for all leveling and ramming foundation beds, trimming of sides and bottom grading to proper level as required. c) Removal and carrying shall include for all loading, unloading and handling as may be necessary and also all necessary means of transport (Mechanical or manual as required). d) The prices are also to include removal of water accumulated due to subsoil seepage, rains or from any kind of sources, either by pumping or by bailing or by any suitable method like well point dewatering etc. if reqd. No extra payment shall be made for dewatering. This also includes for draining out the pumped water to nearby available drainage system. e) Normally payment of earth work shall be made according to the sizes of PCC for trenches/ pits as contemplated in the working drawings. Extra due to widening or deepening of trenches / pits shall not be paid for except for the cases where water / acid proofing would be accepted as per working drawings in such case the mode of measurement shall be as per IS : 1200.

f) Nothing extra shall be paid for sorting /screening of excavated materials to obtain good earth for filling. g) Nothing extra shall be paid on account of any lift for disposal of excavated materials. h) Where excavation are made in excess of the depth required, the contractor shall at his own expense fill up to the desired level with lean concrete of mix 1:5:10 (1 Cement: 5 Coarse sand: 10 Graded stone aggregate 40 mm nominal size. i) Rate shall include Royalty, Taxes, etc., levied by the local authorities, all transportation, loading and unloading, etc., and nothing extra will be paid on this account. j) Soft / loose soil also includes filled up earth / murrum. k) The filling for earth / murrum or sand shall be done in layers not exceeding 20 cm in thickness (consolidated) with Suitable means to achieve 95% dry density at Optimum Moisture Content corresponding to standard Proctor test compaction with vibroroller(8 to 10MT capacity) & vibro compactor in confined spaces. l) For other conditions please refer document.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means including disposal of excavated earth within and outside site to unobjectionable place, disposed earth to be levelled and neatly dressed including all lead and lifts/depth. All kinds of Soil such as ordinary/hard soil, kankar, murrum, gravel, pebbles, bajri, removal of shrubs, uprooting the tree roots etc. and all types of material encountered in excavation including excavation of saturated soils, mud, sludge etc.

Filling with earth available within premises (excluding rock) under floors or filling in sides of foundations etc. in layers not exceeding 20cm in depth, consolidation each deposited layer by ramming and watering for all Lift and Lead as per direction of Site in charge. The filling for earth / murrum or sand shall be done in layers not exceeding 20 cm in thickness (consolidated) with Suitable means to achieve 95% dry density at Optimum Moisture Content corresponding to standard Proctor test compaction with vibroroller(8 to 10MT capacity) & vibro compactor in confined spaces.

Clearing jungle from plot (excluding areas under excavation) including uprooting of rank vegetation, grass, brush wood, trees & saplings of girth upto 30cm measured at a height of 1m above ground level and removal of rubbish outside the site and to an unobjectionable place as per direction of Site in charge

Supplying and filling local sand from grading zone IV of fine aggregates as per applicable IS Code in plinth, under floors, foundations,etc. in layers not exceeding 20cm in depth, each deposited layer to be compacted by ramming watering and dressing complete as per technical specifications/ drawings.

Providing and laying dry stone hard rubble/boulder soling of required thickness under floor, ramps, walls, foundation, trenches, etc. & for similar situations at plinth level/ below plinth level including laying in regular lines , levels, interstices, filled with smaller stones /chips of appropriate size and sand consolidated with copious watering as specified & finished to the required level etc as instructed by site engineer. The soling shall be laid and hand packed true to grade and section and these shall be often checked by borning rods,temple boards,fish line,etc..The grades sections etc.of soling shall correspond to those of the surfacing coming thereon.The soling thus laid shall be finished by knocking out projecting stones and filling depressions by chips to reach up to the grade & camber.

Dry stone pitching 22.5 cm thick including supply of stones and preparing surface complete