摘要
从土工格室植被护坡在膨胀土边坡防护中的应用出发,提出了土工格室护坡中土工格室的预加应力概念,从定性角度对土工格室植被护坡防膨胀土边坡开裂机理进行了阐述。通过非饱和土线弹性模型对膨胀土初始开裂机理进行了深入研究,给出了预加应力、临界基质吸力、土的抗拉强度等因素与初始开裂深度的关系,为土工格室植被护坡防膨胀土边坡开裂机理研究提供了参考。
According to the application of geo-cells flexible retaining wall in expansive soil slope protection,the concept of prestressing for the geo-cells flexible retaining wall is put forward.The mechanism of expansive soil slope cracking for geo-cells flexible retaining wall is elaborated with by qualitative analysis.After further studying the cracking mechanism of expansive soil through unsaturated soil elastic model,the initial crack depth relationship with prestressing,critical matrix suction,the tensile strength is given.This paper provides some suggestions for the study of the cracking mechanism for expansive soil slope with geo-cells flexible retaining wall.
出处
《公路》
北大核心
2016年第4期23-28,共6页
Highway
基金
国家自然科学基金面上项目资助
项目编号41272285
关键词
土工格室植被护坡
膨胀土
开裂机理
geo-cells flexible retaining wall
expansive soil
cracking mechanism
