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Cohesion (geology)
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Cohesion (geology) : ウィキペディア英語版
Cohesion (geology)
Cohesion is the component of shear strength of a rock or soil that is independent of interparticle friction.
In soils, true cohesion is caused by following:
# Electrostatic forces in stiff overconsolidated clays (which may be lost through weathering)
# Cementing by Fe2O3, CaCO3, NaCl, etc.
There can also be apparent cohesion. This is caused by:
# Negative capillary pressure (which is lost upon wetting)
# Pore pressure response during undrained loading (which is lost through time)
# Root cohesion (which may be lost through logging or fire of the contributing plants, or through solution)
==References==

*(Collins internet-linked dictionary of Geology )

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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