土壤准静态压缩力学性能实验研究

为研究土壤准静态的压缩力学性能，利用电子万能试验机对土壤进行了准静态压缩实验，分析了其密度、质地、水的体积分数等参数对静态抗压强度的影响. 结果表明:土壤的密度、质地和水的体积分数等因素均会对其静态力学性能造成影响，影响着静载情况下的应力-应变关系. 在应变一定的情况下，一般应力随着土壤密度的增大而增大，对于黏性土壤其水的体积分数对内部应力影响很大，但对于砂土则影响不明显. 

Experimental Study on Quasi-Static Performances of Soil Material

In order to study the mechanical properties of the soil in quasi-static, a compression test with very low strain rates was carried out, using the electronic universal test machine. It was for soil with different parameters to get the stress-strain curves in overall process. According to the experimental results, dynamic response was analyzed in three aspects of density, texture of soil, moisture content. In the case of same strain, the stress increased with increasing density of soil sample, and the effect of the moisture content in clay soils is important, but it is not that evidence for sand soil.