Effect of Seepage on Soil Shearing Strength

Shearing strength is one of the main indexes of soil.The existence of seepage through soil mass makes the shearing strength change (mainly become smaller) because of the mechanical,physical and chemical reaction of water flow.The quantitative effect of seepage on soil shearing strength is analyzed under several cases,in which the indexes of shearing strength φ and c,the effective stress and the shearing force are discussed.A calculation example is also given to show the obvious effect.