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An oedometer test on a saturated clay soil gave the following results: Cc = 0.2, Cr = 0.04, OCR = 4.5. The existing vertical effective stress in the field is 130 kPa. A building foundation will increase the vertical stress at the center of the clay by 50 kPa.
The thickness of the clay layer is 2 m and its water content is 28%.
(a) Calculate the primary consolidation settlement.
(b) What would be the difference in settlement if OCR were 1.5 instead of 4.5?
A construction company invested $60,000 in a new bulldozer. If the income from temporary leasing of the bulldozer is expected to be $15,000 per year, the length of time required to recover the investment at an interest rate of 15% per year is closest..
Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 42.1* and 48.9*, respectively, with the tensile axis. If the critical resolved shear stress is 18.2 MPa (3000 psi)
A sewage treatment works (STW) with 4 single-stage trickling filters has become organically overloaded due to the discharge of a biodegradable industrial effluent to the STW. This is causing effluent to pond on the surface of the filters.
Determine the magnitude of the couple force so that the resultant couple moment on the crank is zero.
The backfill soil's unit weight and angle of internal friction are 17.2 kN/cubic meter and 31 degrees respectively and the angle of wall friction friction between backfill and wall is 20 degrees. Find the total active earth pressure against the wa..
an engineer uses a standard technique for measuring the thickness of a clay landfill liner that has a typical standard deviation of 0.7 in. The project specifications require the liner thickness to be 36 inches or more, at least 95 percent of the ..
Find the magnitude and depth of the point of application of the force on the circular gate shown (circular gate at an angle of 60 deg.) if h(distance from top of gate to top of water)=5ft. and D(length of the gate)=4 ft.
A stainless steel tube with an outside diameter of 65 mm and a wall thickness of 5 mm is used as a compression member. If the axial normal stress in the member must be limited to 180 MPa, determine the maximum load P that the member can support.
If an additional 11ft lane is added (each direction) and all other factors stay the same, what will be the new level of service?
A 5-m wide rectangular channel is carrying a flow of 5 cubic meter per second. If the Manning n=0.013 and the bottom slope, So=0.0001, determine the normal depth using a converging iteration.
A cylindrical soil, 75mm in diameter and 150 mm long, is radially compressed. The length increases to 153 mm and the radius decreases to 37.2 mm. Calculate: a) The axial and radial strains b) The volumetric strains
Calculate the Euler buckling load for a mild steel rod of length 5m and diameter 25mm when pinned at each end and axially loaded. If this rod is to be used again with an initially straight axis, determine the maximum permissible
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