When the slope is steeper the shear stress ____ and the perpendicular component of
gravity decreases.
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increases
Friction and cohesion is affected by: (4)
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- type of soil/rock
- condition of geological material (how eroded they are)
- presence of weak surfaces ( joints/faults)
- pore water pressure with slope
,What is debris flow?
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the rapid and shallow flow of partially to fully saturated debris on a steep
slope
note: debris avalanches and flows are common in mountainous areas with
high rainfall.
____ refers to the downslope motion of soil/rock materials under the influence of
gravity
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Mass movemnt
Why is Western Canada landslide prone? (4)
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- mountainous terrain
- abundances of glacial sediments
- high precipitation
- frequent earthquakes
On a slope gravity (Gp) acts ____ to the slope holding the materials in place
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perpendicular
What is effective stress?
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the net sum of the two opposing effects of normal stress and pore water
pressure
What is a Topple?
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Topples require materials to fracture which then roll down the slope
no such things as a debris topple
Water increases the ____ of rocks.
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weathering
How are landslides classified?
gravity decreases.
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increases
Friction and cohesion is affected by: (4)
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- type of soil/rock
- condition of geological material (how eroded they are)
- presence of weak surfaces ( joints/faults)
- pore water pressure with slope
,What is debris flow?
Give this one a try later!
the rapid and shallow flow of partially to fully saturated debris on a steep
slope
note: debris avalanches and flows are common in mountainous areas with
high rainfall.
____ refers to the downslope motion of soil/rock materials under the influence of
gravity
Give this one a try later!
Mass movemnt
Why is Western Canada landslide prone? (4)
Give this one a try later!
- mountainous terrain
- abundances of glacial sediments
- high precipitation
- frequent earthquakes
On a slope gravity (Gp) acts ____ to the slope holding the materials in place
, Give this one a try later!
perpendicular
What is effective stress?
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the net sum of the two opposing effects of normal stress and pore water
pressure
What is a Topple?
Give this one a try later!
Topples require materials to fracture which then roll down the slope
no such things as a debris topple
Water increases the ____ of rocks.
Give this one a try later!
weathering
How are landslides classified?
