Chapter $5\mathrm{.}9$ to $5\mathrm{.}11$

$11$ point

Las Vegas and Mexico City are experiencing substantial subsidence due to:

Earthquakes causing regional subsidence

Organic rich soils experiencing "creep" settlement

New buildings exerting compressive stresses on soil

Groundwater being pumped and lowering the groundwater level

$2$

$1$ point

Which statement about effective stress is false?

Effective stress is generally considered the most important concept in geotechnical engineering

Effective stress controls the compressibility of a soil

Effective stress will not come up again in this class

Effective stress controls the shearing resistance $($strength$)$ of a soil

$1$ point

$K_0$ the coefficient of lateral earth pressure at rest, is:

The ratio between horizontal and vertical effective stress

The ratio between horizontal and vertical total stress

Typically equal to $100-150$

Primarily dependent on clay mineralogy