非饱和黄土最大动弹性模量试验研究

在山西太原黄土动力试验的基础上,对非饱和黄土的最大动弹性模量进行了分析。结果表明,非饱和黄土的最大动弹性模量随周围压力的增大而增大,在相同的周围压力下,含水率越低对应的最大动弹性模量越大,在相同的含水率条件下,周围压力越大对应的最大动弹性模量也越大;含水率≥10%时,非饱和黄土最大动弹性模量关于周围压力随含水率的归一化效果较明显,而低含水率（5%）条件下归一化效果不明显。

Experimental Study on Maximum Dynamic Elastic Modulus of Unsaturated Loess

On the basis of dynamic test on Loess in Taiyuan,Shanxi Province,the maximum dynamic elastic modulus of unsaturated loess was analyzed.The results showed that the maximum dynamic elastic modulus of unsaturated loess was increased with the increase of confining pressure.Under the same confining pressure,the lower the moisture content was the bigger the maximum dynamic elastic modulus was.While under the same moisture content condition,the higher the confining pressure was the bigger the maximum dynamic elastic modulus was.When the moisture content ≥10%,the normalization effect of the maximum dynamic elastic modulus of unsaturated loess on confining pressure with moisture content was obvious,but the normalization effect was not obvious under low moisture content(5%)condition.