Questions from Geotechnical Engineering

Q: During a subsoil exploration program, undisturbed normally consolidated silty clay samples

During a subsoil exploration program, undisturbed normally consolidated silty clay samples were collected in Shelby tubes from location A as shown in Figure 13.62. Following are the results of four...

Q: Refer to Figure 13.62. Shear strength parameters are needed

Refer to Figure 13.62. Shear strength parameters are needed for the design of a foundation placed at a depth of 2 m in the silty sand layer. Soils collected from this sand were compacted in the direct...

Q: The relationship between the relative density, Dr, and the angle

The relationship between the relative density, Dr, and the angle of friction, ’, of a sand can be given as ’ 5 28 1 0.18 Dr (Dr in %). A drained triaxial test was conducted on the same sand with a c...

Q: For a normally consolidated clay specimen, the results of a drained

For a normally consolidated clay specimen, the results of a drained triaxial test are as follows. Chamber-confining pressure = 125 kN/m2 Deviator stress at failure = 175 kN/m2 Determine the soil fri...

Q: In a consolidated-drained triaxial test on a clay, the

In a consolidated-drained triaxial test on a clay, the specimen failed at a deviator stress of 18 lb/in2 . If the effective stress friction angle is known to be 31°, what was the effective confining p...

Q: Consider the clay specimen in Problem 13.8. A consolidated

Consider the clay specimen in Problem 13.8. A consolidated-undrained triaxial test was conducted on the same clay with a chamber pressure of 15 lb/in2 . The pore pressure at failure is (ud)f = 4.8 lb...

Q: A retaining wall is shown in Figure 14.36. For

A retaining wall is shown in Figure 14.36. For each problem, determine the Rankine active force, Pa, per unit length of the wall and the location of the resultant.

Q: A retaining wall is shown in Figure 14.36. For

A retaining wall is shown in Figure 14.36. For each problem, determine the Rankine active force, Pa, per unit length of the wall and the location of the resultant.

Q: A retaining wall is shown in Figure 14.36. For

A retaining wall is shown in Figure 14.36. For each problem, determine the Rankine active force, Pa, per unit length of the wall and the location of the resultant.

Q: For a given sand, the maximum and minimum void ratios are

For a given sand, the maximum and minimum void ratios are 0.78 and 0.43, respectively. Given Gs = 2.67, determine the dry unit weight of the soil in kN/m3 when the relative density is 65%.