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the tunnel of the previous problem is sunk into a trench that has been dredged in the river bottom and then covered
q1sketch a flow net for the situation shown in figure 87 and calculate the total discharge compare the result with the
suppose that in a case as considered in the previous problem the soil consists of 1 m clay on top of a thick layer of
for a system of air conditioning water is extracted from a layer of 10 m thickness having a hydraulic conductivity of 1
a well in a circular area of radius 1000 m appears to lead to a lowering of the groundwater table a drawdown of 1 m at
draw a sketch of the solution 114 for values of rr from 0001 to 1 the value 0001 applies to the value r rw where rw is
a block of wood having a volume of 01 m3 is kept in equilibrium below water in a basin of water by a cord attached to
1 in a sample of sand c0 a stress state appears to be possible with sigmaxx 10 kpa sigmayy 20 kpa and sigmaxy 5 kpa
in a certain town it is required that in a period of 20 years after the sale of a terrain the deformation may not be
modify the computer program 162 so that only one term of the solution is calculated by omitting line 200 in the program
a terrain consists from top to bottom of 1 meter dry sand gamma 17 knm3 4 meter saturated sand gamma 20 knm3 2 meter
suppose that in the tests mentioned above the test results are that after one day a strain of 2 is observed and after
in a test on a clay sample of 2 cm thickness it has been measured that after 15 minutes the pore pressures are
in a laboratory test on a clay sample it has been forgotten to measure the deformation immediately after the
1 the computer programs in this chapter can not be used if t 0 because then the loop will continue forever the series
the consolidation process of a clay layer of 4 meter thickness is solved by a numerical procedure the consolidation
execute the calculations descibed above using program 172 or some other program for instance using excel and
a sand layer is located below a road construction of total weight 20 kpa the sand has been densified by vibration
in a soil sample the state of stress is such that the major principal stress is the vertical normal stress at a value
also determine the normal stress and the shear stress on a plane making an angle of 30 with the vertical direction and
on two soil samples having a diameter of 38 cm triaxial tests are performed at cell pressures of 10 kpa and 20 kpa
it is given that for a certain sand c 0 and phi 30deg a triaxial test is done on this sand using a cell pressure of
a completely saturated clay sample is loaded in a cell test by a vertical stress of 80 kpa due to this load the cell
of a certain soil it is known from previous studies that c 20 kpa and phi 30 an undrained analysis must be made for
as an example the problem of a load on an l-shaped region is considered see figure 294 on the short leg the load is 15