GEOL 106 - LEC 6

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Department
Geological Sciences and Geological Engineering
Course
GEOL 106
Professor
Prof.
Semester
Fall

Description
Slope Stability and Water • Water can infiltrate into the ground (ground water) . Can decrease stability of slopes by: o 1. Adding extra weight o 2. Creating pore pressure that causes uplift Water is absolutely critical P = pore pressure Sf = ca+n x tan Φ/ w x sin this is when its dry Sf = ca + (n-p) tan Φ / w x sin this is when its wet Linkages • Earthquakes and volcanic eruptions can cause landslides • Large landslides can trigger tsunami Human Impacts • 1. Urbanization in landslide prone regions • 2. Tree cutting -> removal of vegetation • 3. Global climate change effects • 4. Dam construction Mitigation Techniques • 1. Land use planning. Stay away from unstable areas • 2
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