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a retaining wall 9 m high retains cohesion less soil with an angle of internal friction 33deg the surface is level with the top of the wall the unit
a smooth backed vertical wall is 63 m high and retains a soil with a bulk unit weight of 18 knm3 and phi 18deg the top of the soil is level with the
a retaining wall 6 m high retains dry sand with an angle of friction of 30deg and unit weight of 162 knm3 verify the earth pressure at rest if the
the wet weight of a sample is missing in a proctor test the oven-dry weight of this sample is 189 n the volume of the mould used is 1000 cm3if the
the maximum dry density and optimum moisture content of a soil from standard proctors test are 18 knm3 and 16 respectivelycompute the degree of
a what are the laws governing compaction ofi cohesion less soils like sand andii moderately cohesive soils like sandy clay b to what compaction
describe why soils are compacted in the field how is the degree of compaction ensured in the field ie control of field compaction distinguish among
sketch a curve showing the relation among dry density and moisture content for standard proctor test and indicate the salient features of the curve
state an expression for zero air-void line and illustrate the line for a specific gravity of 265what are the various factors that affect the
the soil in a borrow pit has a void ratio of 090 a fill-in-place volume of 20000 m3 is to be constructed with an in-place dry density of 1884 knm3if
a moist soil sample compacted into a mould of 1000 cm3 capacity and weight 35 n weighs 535 n with the mould a representative sample of soil taken
preliminary settlement analysis for a building indicated a settlement of 50 mm in 4 years and an ultimate settlement of 250 mm
a clay layer 25 metres thick has a saturated unit weight of 192 knm2 ground water level occurs at a depth of 5 metres it is proposed to construct a
what is contact pressure how does it depend on the type of structure and type of soilwhat is active zone in soil define it with reference to the
a building was to be constructed on a clay stratum preliminary analysis showed a settlement of 60 mm in 6 years and an ultimate settlement of 250 mm
the loading period for a building extended from feb 1957 to feb 1959 in feb 1962 the average measured settlement was found to be 117 mm the ultimate
a clay layer 24 metres thick has a saturated unit weight of 18 knm3 ground water level occurs at a depth of 4 metres it is proposed to construct a
a clay stratum of 18 metres thickness was found above a sand stratum when a boring was made the clay was consolidated under the present overburden
a footing foundation for a water tower carries a load of 9000 kn and is 36 metres square it rests on dense sand of 9 m thickness overlying a clay
a soft normally consolidated clay layer is 18 m thick the natural water content is 45 the saturated unit weight is 18 knm3 the grain specific
a rectangular area 4 m times 6 m carries a uniformly distributed load of 100 knm2 at the ground surface estimate the vertical pressure at a depth of
a strip load of considerable length and 15 m width transmits a pressure of 150 knm2 to the underlying soil verify the maximum principal stress at 075
what are the basic assumptions in boussinesqs theory of stress distribution in soils illustrate the vertical stress distribution on a horizontal
a rectangular foundation 2 m times 4 m transmits a uniform pressure of 450 knm2 to the underlying soil verify the vertical stress at a depth of 1
a raft of size 4 m-square carries a load of 200 knm2 verify the vertical stress increment at a point 4 m below the centre of the loaded area using