37.4. Liquefaction of Soils

Try these first

1. 1.

   What happens to soil during liquefaction?

   Hint

   Think about what happens when water accumulates rapidly.

2. 2.

   List one necessary condition for liquefaction.

   Hint

   This soil lacks cohesion.

3. 3.

   What is liquefaction?

   • Soil hardening
   • Soil behaving like a liquid
   • Soil drying out

   Hint

   Think about what happens when too much water pushes through soil.

4. 4.

   True or False: Liquefaction can occur in dry soil.

   • True
   • False

   Hint

   Consider the definition of saturation.

5. 5.

   Given a scenario of an earthquake affecting a city built on sandy, saturated ground, analyze how the liquefaction risk varies with depth of the water table and density of the soil.

   Hint

   Consider both depth and soil characteristics.

6. 6.

   Evaluate a construction site in an area prone to seismic activity. Suggest design strategies that could mitigate liquefaction risks based on the conditions discussed.

   Hint

   Remember the types of solutions we've talked about.