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Landslide. Hazards and solutions. Benjamin Polstra, Delia Kimmel, Quwana Johnson, Ameena Patterson. What are landslides?. What regions are most prone to landslides?. Mountains (Steep Land) Large amounts of rain Weak soil Active faults (Cause earthquakes). Forest Falls.
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Landslide Hazards and solutions Benjamin Polstra, Delia Kimmel, Quwana Johnson, Ameena Patterson
What regions are most prone to landslides? • Mountains (Steep Land) • Large amounts of rain • Weak soil • Active faults (Cause earthquakes)
Forest Falls • This place has DFS (Debris Flow Slugs), which is some kind of landslides contained mud sliding down the mountain during rainfalls. • DFS can reached 70 mph and lasted 1 to 2 minutes.
What can be done to reduce the hazard of landslides? Landslides Cannot be predicted, so we can only help prevent them by… • Regrading • Replace weak soil with stronger soil • Pier • Deep poles drilled below house to stabilize • Tree/ Plants • Roots stabilize ground & remove water
What can be done to reduce the hazard of landslide? • Add material to toes • To stop the movement • Drains • Removes surface water from rainfall (less muddy) • Wells • To draw water from underground • Building Codes (construction) • Geologists inform the government where unstable land is
Drains Surface pipelines Drains