Determine the factor of safety with respect to shear failure

Assignment Help Civil Engineering

Reference no: EM13557110

A footing 3m X 3m carries a pressure of 500 kN/ m2 at a depth of 1m in a sand substrate. The saturated unit weight of the sand is 20 kN/ m3 and the unit weight above the water table is 18 kN/ m3. The design shear strength parameters are c’ = 0 and ?’ = 40°. Determine the factor of safety with respect to shear failure for the following cases:

(a) the water table is 5m below ground level,

(b) the water table is 1m below ground level,

Reference no: EM13557110

Questions Cloud

What is the firms cost of capital before taxes : A firm's stockholders expect a 15% rate of return, and there is a $12M in common stock and retained earnings. The firm has $5M in loans at an average rate of 7%. The firm has raised $8M by selling bonds at an average rate of 6%. What is the firm's co..

Calculate work done : Tank A has a volume of 100 liters and contains saturated vapor r-134 at 30C. With the valve open slightly flow enters cylinder B. a pressure of 200kpa is required to lift piston in b. the process ends when the pressue at A drops to 200kPa.

What is the elongation of a rectangular bar : What is the elongation of a rectangular bar (cross section 2 inch * 2 inch length 4 ft) When it is subjected to an axial load of 80,000 lbs. Assume the material of the bar has the following properties G = 7,700 KSI, V =0.30

Calculate the active and passive pressures at the lower end : A line of sheet piling is driven 4m into a firm clay and retains, on one side, a 3m depth of fill on top of the clay. Water table level is at the surface of the clay. The unit weight of the fill is 18kN/m3 and the saturated unit weight of the clay is..

Determine the factor of safety with respect to shear failure : A footing 3m X 3m carries a pressure of 500 kN/ m2 at a depth of 1m in a sand substrate. The saturated unit weight of the sand is 20 kN/ m3 and the unit weight above the water table is 18 kN/ m3

What is the allowable slope angle if a factor of safety : A cutting 9 m deep is to be excavated in saturated clay of unit weight 19 kN/m3. The design shear strength parameters are cu = 30 kN/ m2 and u = 0. A hard stratum underlies the clay at a depth of 11 m below ground level.

What is the maximum torque so that the allowable shear : A hollow circular cylinder made of steel (E =200 GPa, G=77 GPa)is subject to a torque T at one end and is fixed at the other end outer diameter of the rod is 50mm and inner diameter is 44mm.

What distance will the shoreline recede if the lake shore : Lake Pleasant, AZ, has a surface area of approximately 2,000 ha. The inflow for the month of August is zero. The lake is dammed so that no water leaves the impoundment downstream of the dam

What is the maximum steady speed : A vehicle of mass 2000 kg coasts along a horizontal track against a drag force Fd (in N) on the automobile given by the following Fd=kV^2 where k= 1.25 kg/m and V is the speed in m/s

User Account

All Pages