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q utilisation of buoyancy effectsubmerged part of the substructure will be subjected to buoyancy effect the uplift pressure from the ground water can
q preloading - control of settlementsthis method consists of loading the soil strata by a load intensity which will be equal to or higher than the
a group of 16 piles of 50 cm diameter is arranged with a centre to centre spacing of 10 m the piles are 9 m long and are embedded in soft clay with
a pile is driven in uniform clay of large depth the clay has unconfined compression strength of 90 knm2 the pile is 30 cm diameter and 6 m long
inspite of the problems of sample disturbance if 1 e or e vs log p curve is interpreted reasonably with some corrections for sample disturbance 2
the integration of strain over the depth is settlement the method of producing the settlement is non-recoverable when the intensity of stress is
a raft 8 m times 24 m is founded at a depth of 4 m in sand with a value of n 20 up to great depth illustrate the total load which the raft can
a raft 9 m times 27 m is founded at a depth of 3 m in sand with a value of n 25 up to great depthverify the total load which the raft can
two load tests were performed at a site-one with a 50 cm square plate and the other with a 75 cm square plate for a settlement of 15 mm the loads
a 18 m square column is founded at a depth of 18 m in sand for which the accurate n-value is 24 the water table is at a detph of 27 mverify the net
q computation of settlementthe settlement in any soil mass under an applied stress is given bys si sc sswheres total settlementsi
q settlement due to deteriorationthe deterioration of foundation concrete will result in the vicinity of sulphates chlorides and chemically
q settlement due to reduction in volume of soilthe weight of the structure causes reduction in volume of soil due to expulsion of pore water from the
q show the settlement due to vibrationthe foundation resting on cohesionless soil and subjected to vibrations will result in settlements of higher
q settlement due to lowering of water tablewater table is encountered with whenever any excavations are made for foundations the water is to be out
q show the settlement due to excavationif an excavation is made in a sandy soil the structure founded near the excavation will be affected
state the size of a square footing at the ground level to transmit a load of 900 kn in sand weighing 18 knm3 and having an angle of shearing
a circular footing rests on a pure clay with qu 270 knm2 at a depth of 18 mverify the diameter of the footing if it has to transmit a load of 720 kn
q settlement due to increasing load on surrounding soilwhen any portion of the ground surface has been loaded it causes the surface of
determine the ultimate bearing capacity of a square footing 1 m times 1 m resting on saturated clay of unconfined compression strength of 180 knm3
q what are the causes of settlementthe various causes of settlement are1 increasing load on the surrounding soil deposit2 excavation3 lowering of
q describe the consolidation settlementthe resulting settlements which are time-dependent and are termed consolidation settlements after the
q what is immediate settlementstrain in all coarse grained dry or partly saturated fine grained soils occur immediately after the application of
all soils subjected to stress undergo strain this will be taking place within the soil skeleton this strain is caused by rolling slipping sliding and
state the algebraic equations showing the variation of safe bearing capacity of soil for clay and sand to be given separately in shallow foundation