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lu 38 mass movement
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Subdecks (6)
factors influencing movement of materials
lu 38 mass movement
17 cards
movement of slopes due to water erosion
lu 38 mass movement
13 cards
falls
lu 38 mass movement
5 cards
slides
lu 38 mass movement
17 cards
flows
lu 38 mass movement
18 cards
heaves
lu 38 mass movement
16 cards
Cards (94)
what is mass movement?
geomorphic process by which materials, including
sand
, soil, weathered and rock move downslope, under the influence of
gravity
how are materials held?
materials held on the
slope
by
friction
in a state of dynamic equilibrium
when is a slope stable?
if the
shear strength
of the material is equal to or exceeds the
shear stress
acting on the slope
what is
shear stress
?
force exerted by the
weight
of the material under the influence of
gravity
acting in the downslope direction
what is shear strength?
measure of the
resistance
of earth materials to be removed
downhill
refers to
internal cohesiveness
of material on slope and how
susceptible
the material is to shearing
when does a slope become unstable?
shear stress>
shear strength
causing due to fall in
shear strength
or increase in shear stress -> mass movement
how does mass movement vary?
a result of
slope instability
,
varies
in scale, rate and type of movement
what are the types of mass movement?
heave
(creep)
flow
slide
fall
See all 94 cards
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