What is the degree of saturation in soil mechanics?
The degree of saturation is the ratio of the volume of water to the volume of voids. It is denoted by ‘S’. The degree of saturation generally expressed as a percentage. It is equal to zero when the soil is absolutely dry and 100% when the soil is fully saturated.
What is the value of degree of saturation?
“Degree of Saturation” (SR) is an engineering geology term and refers to the ratio of the volume of water to the total volume of void space. The Degree of Saturation or SR-value ranges from 0% to 100% (0% being completely dry, and 100% being fully saturated).
How do you determine the degree of soil saturation?
The degree of saturation is the ratio of the volume of water in a soil to the volume of voids. The degree of saturation is thus a ratio which can be between 0 and 1. It can also be expressed as a percent. It is the percentage of the void space which is filled with water.
Can degree of saturation be greater than 1?
Then, Degree of saturation = 0. Hence, the degree of saturation varies between 0 and 1. Void ratio (e): Porosity is defined as the ratio of the volume of voids to the total volume of the soil.
Under which condition is the degree of saturation 1?
Explanation: For a fully saturated soil sample, the volume of water is equal to the volume of voids and hence the degree of saturation is equal to one. Explanation: The percentage void ratio is defined as the ratio of the volume of air voids to the total volume of the soil mass. It is expressed as percentage.
How does degree of saturation affect soil permeability?
Permeability of the soil is directly proportional to the degree of saturation of the soil. In one way increase in the degree of saturation increases the area of flow and hence increases the permeability.
Why degree of saturation is important?
Importance of Controlling the Degree of Saturation in Soil Compaction Linked to Soil Structure Design. As a standard method, it is proposed to control the values of w and ρd in such that Sr becomes (Sr)opt while ρd becomes large enough to ensue soil properties required in design fully taking advantage of available CEL.
How do you solve porosity?
Porosity = ( ( Total Volume – Volume of the Solid ) / Total Volume ) x 100%.
What is saturated soil?
saturated soil. A condition in which all easily drained voids (pores) between soil particles are temporarily or permanently filled with water, significant saturation during the growing season is considered to be usually one week or more. Last updated on June 24th, 2021.
What is G in soil mechanics?
The specific gravity (GS) of a soil refers to the ratio of the solid particles’ unit weight to the unit weight of water. GS should not be confused with the soil density since it is a dimensionless unit and expresses the ratio of two particular densities.