The results show that the cohesion of unsaturated soil changes greatly, and the friction angle changes a little with soil moisture content It is also shown that the deeper of soil layer, the smaller of the extent of shearing strength improved.
The results show that the cohesion of unsaturated soil changes greatly, and the friction angle changes a little with soil moisture content It is also shown that the deeper of soil layer, the smaller of the extent of shearing strength improved.
结果表明，植被具有提高非饱和土抗剪强度的作用，黏聚力增加较大，内摩擦角增加相对较小；土层越深，土壤抗剪强度提高的程度越小。