Effect of Seepage on Soil Shearing Strength
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摘要: 土体的抗剪强度是土体的主要强度指标之一。当土体中存在渗流时,由于水流的力学、物理、化学等作用,会使土体的抗剪强度发生变化(主要趋势是使抗剪强度降低)。定量分析了各种情况下渗流作用对土体抗剪强度指标φ,c、有效应力及切向力的影响,得到了渗流作用下土体抗剪强度的定量表达式,并给出了应用算例以说明渗流对土体抗剪强度的明显影响。Abstract: 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.
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Key words:
- seepage through soil mass /
- shearing strength /
- effective stress /
- shearing force
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