Difference between Quick sand and Quick soil

 

Quick Sand

Quick Soil

Quick sand is a hydraulic condition, not a type of soil

Quick soil is a type of soil

Definition

At critical condition, effective stress being zero, shear strength of cohesionless soil becomes zero hence, soil behaves like a boiling liquid.

Definition

A soil deposit that is reasonably stable if undisturbed, but suddenly becomes loose when disturbed. Or

When sensitivity of soil > 16

Observed in fine sand and silt

marine clay

Also known as

Quick condition, Boiling condition

Also known as

Highly sensitive, quick clay

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