Questions from Geotechnical Engineering

Q: Refer to Figure 9.5a. If H1 = 0.

Refer to Figure 9.5a. If H1 = 0.6 m, H2 = 1 m, h 5 0.4 m, sat = 18.6 kN/m3 , hydraulic conductivity of sand (k) = 0.12 cm/s, and area of tank = 0.45 m2 , what is the rate of upward seepage of the wat...

Q: Refer to Figure 9.5a. Given: H1 = 1

Refer to Figure 9.5a. Given: H1 = 1 m, H2 = 2 m, h = 1.2 m, void ratio of sand (e) = 0.55, specific gravity of soil solids (Gs) = 2.68, area of the tank = 0.5 m2 , and hydraulic conductivity of sand =...

Q: A soil has e = 0.75, w = 21

A soil has e = 0.75, w = 21.5%, and Gs = 2.71. Determine: Moist unit weight (lb/ft3) Dry unit weight (lb/ft3) Degree of saturation (%)

Q: A soil element is shown in Figure 10.43. Determine

A soil element is shown in Figure 10.43. Determine the following. Maximum and minimum principal stresses Normal and shear stresses on the plane AB Use Eqs. (10.3), (10.4), (10.6), and (10.7).

Q: Refer to Figure 10.50. Given: q1 =

Refer to Figure 10.50. Given: q1 = 10.9 kN/m x1 = 2.45 m x2 = 1.22 m z = 0.9 m If the vertical stress at point A due to the loading is 1.7 kN/m2, determine the magnitude of q2.

Q: Refer to Figure 10.51. Due to the application of

Refer to Figure 10.51. Due to the application of line loads q1 and q2, the vertical stress increase, z, at A is 30 kN/m2. Determine the magnitude of q2.

Q: Refer to Figure 10.17. Given: B =

Refer to Figure 10.17. Given: B = 3.7 m q = 16.8 kN/m2 x = 2.7 m z = 1.5 m. Determine the vertical stress increase, z, at Point A.

Q: Repeat Problem 10.12 for B = 3 m, q

Repeat Problem 10.12 for B = 3 m, q = 60 kN/m2, x = 1.5 m, and z = 3 m.

Q: An earth embankment diagram is shown in Figure 10.52.

An earth embankment diagram is shown in Figure 10.52. Determine the stress increase at point A due to the embankment load.

Q: Figure 10.53 shows an embankment load for a silty clay

Figure 10.53 shows an embankment load for a silty clay soil layer. Determine the vertical stress increase at points A, B, and C.