30.11.1. Geotechnical Investigation

Try these first

1. 1.

   What is a geotechnical investigation?

   Hint

   Think about what characteristics are important for buildings.

2. 2.

   Name one dynamic soil property that is significant in seismic design.

   Hint

   Consider how soil interacts with waves.

3. 3.

   What is the main purpose of a geotechnical investigation?

   • To study air quality
   • To analyze soil behavior under seismic loads
   • To determine the cost of construction

   Hint

   Think about its role in earthquake safety.

4. 4.

   True or False: Soil amplification helps reduce seismic waves during an earthquake.

   • True
   • False

   Hint

   Consider what happens to waves in softer soils.

5. 5.

   A geotechnical report indicates a site with a soft clay layer overlying a rock formation. Describe how this configuration might affect the building's seismic response, and suggest mitigation measures.

   Hint

   Think about how softer layers can change wave characteristics.

6. 6.

   Given a site-specific response spectrum derived from a geotechnical investigation, explain how engineers might adjust their design approach based on the data.

   Hint

   Consider how designs change when specific data informs their choices.