| 降雨条件下膨胀土基坑边坡稳定性分析 |
| |
| 引用本文： | 刘洋,王国强,周健.降雨条件下膨胀土基坑边坡稳定性分析[J].地下空间与工程学报,2005,1(2):296-299. |
| |
| 作者姓名： | 刘洋 王国强 周健 |
| |
| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092
2. 合肥工业大学,资环学院,合肥,230009 |
| |
| 摘 要： | 应用非饱和土一维降雨入渗模型模拟膨胀土基坑边坡在降雨入渗条件下的水分运移规律。通过试验研究了合肥膨胀土抗剪强度随含水量变化的关系。在此基础上,研究了考虑降雨入渗影响的膨胀土基坑边坡稳定性问题。研究表明,随降雨历时的增加边坡的安全系数逐渐变小,边坡最危险滑动面有向浅层发展的趋势。对于膨胀土边坡的浅层滑动面,采用折线滑动面比圆弧滑动面更接近于实际情况。
|
| 关 键 词： | 膨胀土边坡 非饱和渗流 抗剪强度 安全系数 |
| 文章编号： | 1673-0836(2005)02-0296-04 |
| 修稿时间： | 2004年11月10 |
Stability Analysis of Expansive Soil Slope of Excavation Considering Rainfall Infiltration |
| |
| LIU Yang,WANG Guo-qiang,ZHOU Jian.Stability Analysis of Expansive Soil Slope of Excavation Considering Rainfall Infiltration[J].Chinese Journal of Underground Space and Engineering,2005,1(2):296-299. |
| |
| Authors: | LIU Yang WANG Guo-qiang ZHOU Jian |
| |
| Abstract: | A one-dimension model was proposed simulating the regularity of moisture flow under rainfall condition. The relationship between shear strength and water content of Hefei expansive soil was studied with two different experimental methods. The stability of expansive soil slope was studied considering the effect of rainfall. The result indicated that with the delay of rainfall the slope safety lowered accordingly and the unstable sliding plane was the shallow slide. Fold line plane was more suitable than the circular slip plane for the shallow slide. |
| |
| Keywords: | expansive soil slope unsaturated seepage shear strength safety coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
