12 Questions
What is the upper limit of particle size for material described as EARTH?
2mm
What distinguishes a debris flow from other types of flow?
Moving material must be loose and capable of 'flow'
What is the defining characteristic of a mudflow?
Material is wet enough to flow
In which type of movement does the material descend largely by falling, bouncing, or rolling?
Topple
What is the primary factor that defines a spread?
Extension of cohesive soil or rock mass
What differentiates a debris avalanche from a debris flow?
'Flowing' capability not required for debris avalanche
What is the main reason for a landslide to occur?
Too much loading on the slope
How can extreme rainfall contribute to triggering a landslide?
By saturating the slope with water
What is a key role of lateral confining forces in preventing landslides?
Stabilizing and preventing movement of the slope
According to Justine Esquivel Varnes’ classification system, what do the two terms used in classifying landslides refer to?
Material type and type of movement
How does the strength of materials play a role in landslide occurrence?
By increasing the resisting force
What impact does excessive loading on a slope have in relation to landslides?
It adds to the driving force
Learn about the causes of landslides, including the balance between driving forces and resisting forces. Find out how factors like gravity, seepage, and earthquakes can contribute to the occurrence of landslides.
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