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An investigation at a particular site reveald 10 m of clay overlying 2m of sand resting on bedrock.the water table was found to be at the ground surface and the piezometric level for the sand to be 2m above ground level. if the density of the clay is equal to 2.0 Mg/m3 ,calculate the total vertical stress ,pore water pressure and effective vertical stress at a depth of 5 meters below ground level.
A river is 6 m deep. The riverbed material has a saturated unit weight of 19.5kN/m3. What is the effective vertical stress 12 m below the water surface
a solid wooden cube (.5*.5*.5 m^3) is floating in water and 0.2 of the cube extends above the water surface. Determine the specific weight of the wood.
A falling-head permeability test was carried out on a clay soil of diameter 100 mm and length 150 mm. In 4 minutes the head in the standpipe of diameter 5mm dropped from 680 to 350 mm.
A pile group consist of four piles in cohesive soil. Each pile's diameter is 0.4 m, and center to center spacing is 1.2 m. The ultimate capacity of each pile is 300 kN. Estimate the design capacity of the pile group, using a factor of safety of 2
A vertical triangular orifice in the wall of a reservoir has a base 0.9m long,0.6m below its vertex and 1.2 m below the water surface. Determine the theoretical discharge?
In 1800 an undeveloped country had a population of 10 million with birth and death rates of 60 and 52 per thousand per year. The situation continued until 1900, when the death rate instantaneously was reduced to 10
the t-component of the force f is known to be 75n. determine the n-component and the magnitude of f.
A concentrated downward force of 2000 lb. is located 6' from the left support, and a uniformly distributed load of 200 lbs./lin. ft. begins 6' to the right end of the member. What force must be applied at each connection to maintain equilibrium?
a stream f gas flowing at 3000 cfm has a particulate loading of 50gr/ft what is the allowable exit loading if 95 % collection efficiency is required. what is the mass of the particles collected
Calculate the amount of each phase present in a 1-kg alumina refractory with composition 70 mol % Al2O3- 30 mol% SiO2 at 2,000 C , 1,900 C and 1,800 C
The stream from a gas well is a mixture containing 50 mol % methane, 10 mol % ethane, 20 mol % propane, and 20 mol % n-butane. This stream is fed into a partial conderser maintained at a pressure of 250 psia
Twenty years of annual maximum rainfall depths are given below. Determine the rainfall depths to be used for storm structure design for the following annual return periods: 2, 5, 10, 25, 50, & 100 year.
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