Questions from Geotechnical Engineering

Q: For the partially submerged backfill in Problem 14.13 (Figure

For the partially submerged backfill in Problem 14.13 (Figure 14.36), determine the Rankine passive force per unit length of the wall and the location of the resultant.

Q: Figure 14.12 shows a frictionless wall with a sloping granular

Figure 14.12 shows a frictionless wall with a sloping granular backfill. Given: H = 7 m,  = 12°, ’ = 288, and  = 18.6 kN/m3 . Determine the magnitude of active pressure, ’  , at the bottom of th...

Q: For the data given in Problem 14.17, determine the

For the data given in Problem 14.17, determine the Rankine passive force, Pp, per unit length of the wall, its location, and its direction.

Q: An 8.5 m high retaining wall with a vertical back

An 8.5 m high retaining wall with a vertical back face retains a homogeneous, saturated soft clay. The saturated unit weight of the clay is 19.6 kN/m3 . Laboratory tests showed that the undrained shea...

Q: Redo Problem 14.19, assuming that a surcharge pressure of

Redo Problem 14.19, assuming that a surcharge pressure of 20 kN/m2 is applied on top of the backfill.

Q: Refer to the frictionless retaining wall shown in Figure 14.10

Refer to the frictionless retaining wall shown in Figure 14.10. Given: H = 6 m,  = 10°, u = 6°, ’ = 308, and ’ = 17 kN/m3 . Determine the magnitude, direction, and location of the active force Pa...

Q: Consider the retaining wall shown in Figure 14.37. The

Consider the retaining wall shown in Figure 14.37. The height of the wall is 5 m, and the unit weight of the sand backfill is 18 kN/m3 . Using Coulomb’s equation, calculate the activ...

Q: Refer to Figure 14.24. Given: H = 7

Refer to Figure 14.24. Given: H = 7.5 m, u = 10°,  = 5°,  = 17.9 kN/m3 , ’ = 28o, ’ = 1/2 ’, kh = 0.3, and kv = 0. Determine the active force, Pae, per unit length of the retaining wall. Also fin...

Q: Figure 14.10 provides a generalized case for the Rankine active

Figure 14.10 provides a generalized case for the Rankine active pressure on a frictionless retaining wall with an inclined back and a sloping granular backfill. You are required to develop some compac...

Q: Refer to Section 14.13 and Figure 14.28.

Refer to Section 14.13 and Figure 14.28. Determine the seismic earth pressure from the soil backfill on the retaining wall, considering  = 105o,  = 8o, ’ = 30o, ’ = 2/3 ’ = 20o, c’ = 0 kN/m2 , c’...