Sunday, April 19, 2015
Some Dafination about soil Mechanics
Total unit weight: Cumulative
weight of the solid particles, water and air in the material per unit volume.
Note that the air phase is often assumed to be weightless.
Ratio of the volume of voids
(containing air, water, or other fluids) in a soil to the total volume of the
soil.
is the ratio of the volume of voids
to the volume of solid particles in a soil. Void ratio is mathematically
related to the porosity.
A measure of the ability of water
to flow through the soil, expressed in units of velocity.
The rate of change of volume with
effective stress. If the pores are filled with water, then the water must be
squeezed out of the pores to allow volumetric compression of the soil; this
process is called consolidation.
The shear
stress that will cause shear failure.
Liquid
limit, plastic limit, and shrinkage limit. These indices are
used for estimation of other engineering properties and for soil classification.
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