Questions from Geotechnical Engineering

Q: The hydraulic conductivity of a sand at a void ratio of 0

The hydraulic conductivity of a sand at a void ratio of 0.5 is 0.022 cm/s. Estimate its hydraulic conductivity at a void ratio of 0.7. Use Eq. (7.31).

Q: The hydraulic conductivity of a sand at a void ratio of 0

The hydraulic conductivity of a sand at a void ratio of 0.5 is 0.022 cm/s. Estimate its hydraulic conductivity at a void ratio of 0.7. Use Eq. (7.31).

Q: For a sandy soil, the following are given: Maximum

For a sandy soil, the following are given: Maximum void ratio = 0.7 Minimum void ratio = 0.46 D10 = 0.2 mm

Q: Assume that the retaining wall shown in Figure 14.35 is

Assume that the retaining wall shown in Figure 14.35 is frictionless. For each problem, determine the Rankine passive force per unit length of the wall, the variation of passive earth pressure with de...

Q: The sieve analysis for a sand is given in the following table

The sieve analysis for a sand is given in the following table. Estimate the hydraulic conductivity of the sand at a void ratio of 0.5. Use Eq. (7.30) and SF =6.5

Q: For a normally consolidated clay, the following are given:

For a normally consolidated clay, the following are given: Estimate the hydraulic conductivity at a void ratio e = 0.9. Use Eq. (7.36).

Q: The in situ void ratio of a soft clay deposit is 2

The in situ void ratio of a soft clay deposit is 2.1, and the hydraulic conductivity of the clay at this void ratio is 0.91 ×10-6 cm/s. What is the hydraulic conductivity if the soil is compressed to...

Q: A layered soil is shown in Figure 7.32. Given

A layered soil is shown in Figure 7.32. Given: H1 = 1.5 m k1 = 10-5 cm/s H2 = 2.5 m k2 = 3.0 × 10-3 cm/s H3 = 3.0 m k3 = 3.5 × 10-5 cm/s Estimate the ratio of equ...

Q: A layered soil is shown in Figure 7.33. Estimate

A layered soil is shown in Figure 7.33. Estimate the ratio of equivalent hydraulic conductivity, kH(eq)/kV(eq).

Q: Consider the setup shown in Figure 7.34 in which three

Consider the setup shown in Figure 7.34 in which three different soil layers, each 200 mm in length, are located inside a cylindrical tube of diameter 150 mm. A constant-head difference of 470 mm is m...