膨胀土的研究现状与展望

Research status and prospect of expansive soil

通过阅读大量的文献资料,从变形、强度和稳定性三个方面对膨胀土研究所取得的进展进行了论述,指出非饱和膨胀土剪切力与位移关系为"软化"型,认为考虑雨水入渗影响的膨胀土边坡稳定性分析必须考虑裂隙的影响,并解释了降雨诱发膨胀土滑坡的滑动面一般较浅的原因。

Through reading a large amount of literature,the paper discusses the research progress of expansive soil from three aspects of deformation,strength and stability,and points out that the relationship between unsaturated soil shearing force and displace take on ＂soften＂ style,the cracking impact must be taken in consideration in the stability analysis of the slope with expansive soil influenced by rainwater penetration,the causes of shallow slope surface with expansive soil results from the rainfall.