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Pore water pressure is to be observed during the construction of the embankment. Calculate the pore water pressure which must not be exceeded at any point in the clay layer 9 m below the surface of the embankment to ensure a shear strength of 100 kPa. The embankment material and the clay have a γ = 19.12 kN/m3
The allowable shearing stress is 15 ksi in the steel rod AB and 8 ksi in the brass rod BC. Knowing that the torque of magnitude T=10 kip * in. is applied at A, determine the required diameter of a) rod AB, b) rod BC.
the three forces of magnitude P can be replaced by a single, equivalent force R acting at point A. Determine the distance x and the magnitude and direction of R
The circular steel plate A is used to seal the opening on the water storage tank. Determine the magnitude of the resultant hydrostatic force that acts on it. Density of water = 1Mg/m^3
A bolt located 50 mm fm he center of an automobile wheel is tightened by applying the couple for 0.10 s. Assuming that the wheel is free to rotate and is initially at rest, determine the resulting angular velocity of the wheel.
if the settling velocity of a particle is 2.80 mm/s and the overflow rate of an up flow clarifier is 0.560 cm/s, what percent of the particles are retained in the clarifier. If the flow rate of this problem is doubled
We are analysing energy efficiency of four different cars, A (3.2 miles/kwh), B (42 mpg using Clean Diesel), C (22 mpg using corn based ethanol E85), and D (28 mpg using regular gasoline). Now accounting for all of the energy used, including extra..
Estimate the number of filters required and calculate the area of each filter (ft2), assuming that a length-to-width ratio (L:W) of 4:1 is employed in constructing the rapid sand filters and suing a filtration rate of 6 gpm/ft2.
The aquifer is inhomogeneous with K = 12+0.006x, where x =0 at point 1, and the piezometric heads at point 1 and 2 are 14.2 m and 18.8 m, respectively measured above the upper confining layer.
For a given load increment, the time for 50% consolidation was 5 min 20 sec. How long will it take for 50 % consolidation of a similar clay layer in the field that is 8.2 ft thick & drained on one side only
A 16-ft [4.88 m] span beam is fixed at one end and simply supported at the other end. A single concentrated load of 9600 lb [42.7 kN] is placed at the center of the span.
A PVC pipe with a diameter of 30 inches will carry a flow of 20 cfs. the bottom slope is 0.005 and the roughness coefficient is 0.015. determine the normal depth, critical depth, velocity and the froude number.
For a total floor load of 75 psf on 2x floor framing at 24 o.c., determine an appropriate plywood thickness and span rating assuming panels with edge support and panels oriented perpendicular to the framing. Specify the minimum fasterners and spac..
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