APSC 151 Geotechnical Engineering Questions And Answers

APSC 151 Geotechnical
Engineering Questions And
Answers

properties of clay


✓✓✓✓~ impermeable, causes foundations to be unpredicatable




properties of silt


✓✓✓✓~ sensitive to variations, causes weak foundations and sensitive to frost heaving




properties of sand


✓✓✓✓~ good foundation and drainage but sensitive to water content and density




properties of gravel


✓✓✓✓~ if angular it interlocks causing erosion proofing

if rounded good for energy absobing




soil slopes need to be

, ✓✓✓✓~ managed so that they do not fail




landfills are highly


✓✓✓✓~ engineered to prevent harm to the surrounding environment




foundations and footings


✓✓✓✓~ are placed deep into the ground to create building stability




retaining walls must


✓✓✓✓~ work with the properties of the soil in order to be useful




engineering in permafrost is difficult becuase


✓✓✓✓~ as the climate changes it has unpredictable behaviour




what are earth dams


✓✓✓✓~ dams that control water using critical properties of different earth materials




the components of an earth dam include


✓✓✓✓~ clay (impermeable core)

sand/silt (retains the core)