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gate ssc je ssc ies soil mechanics soil foundation engineering unit weight water content torsional balance method radiation method oven drying method sand bath method alcohol method core cutter method pycnometer water displacement method sand replacement method submerged mass density method is 456:2000 concrete calcium carbide method machenlink ese phase -v (write a report) phase -iv (laboratory testing) phase -iii (detailed soil exploration) phase -ii (preliminary reconnaissance) depth exploration depth of exploration isolated raft footing phase -i (desk study) phases of soil investigation civil engineering civil balance is456 modulus of elasticity rcc cone angle resistance ³¦´Ç³ó±ð²õ¾±Ã³²Ô specific gravity pycnometer method core cutter me wash boring boring methods percussion boring auger and shell boring hollow stem boring rotary boring samplers soil sampling area ratio inside clearance outside clearance design of reinforced concrete structure spread footing pile foundations dams basement walls fills limit state design limit state method lsm wsm working stress method working stress design grade of concrete design of concrete spt standard penetration test recovery ratio