37.9. Residual Strength after Liquefaction

Try these first

1. 1.

   What is residual strength?

   Hint

   Think about what happens to soil during liquefaction.

2. 2.

   Name one factor that affects residual strength.

   Hint

   Consider how different soils behave after being stressed.

3. 3.

   What does residual strength refer to?

   • Original shear strength
   • Shear strength after liquefaction
   • Maximum shear strength

   Hint

   Consider what happens to soil following liquefaction.

4. 4.

   True or False: Uniform sands have higher residual strength compared to well-graded sands.

   • True
   • False

   Hint

   Reflect on how different soil types react to stress.

5. 5.

   For a hypothetical site, if a saturated sandy soil has a high void ratio and underwent significant static loading resulting in liquefaction, discuss the implications for its post-liquefaction residual strength.

   Hint

   Reflect on the how void ratios and strain interact.

6. 6.

   Evaluate the following scenario: A recently liquefied embankment shows signs of excessive lateral displacement but minimal vertical settlement. Discuss the factors affecting residual strength in this case.

   Hint

   Consider how different types of stress influence soil behavior.