预压缩对非饱和土强度的影响试验研究

Experimental study on the effect of precompression on the strength of unsaturated soil

通过三轴剪切试验和直接剪切试验,分析了预压缩和排气状态对非饱和土强度的影响规律,试验结果表明:对试样预先进行压缩和排气不排水的试验条件,均能提高土体的抗剪强度,且排气状态对粘土强度的影响较粉土的明显。

Through the triaxial shear test and direct shear test,to research the precompression and exhaust condition the influence of the strength of unsaturated soil. Experimental results show that the sample in advance for the experiment of compression and exhaust undrained condition,all can improve the shear strength of soil mass,and exhaust condition effect on the strength of clay is more obviously.