岩土工程学报2012，Vol.34Issue(8)：1379-1386,8.
砂质边坡安全性与快速评估方法研究
Safety factor and rapid assessment method for sandy slopes
陈骏瑜 1李咸亨1
作者信息
- 1. 台湾科技大学营建工程系,台湾台北10672
- 折叠
摘要
Abstract
The variation of groundwater levels in a slope is usually used as the major parameter for the monitoring of slope stability. But its influence on the safety factor of a slope is seldom examined. Most indices used in commercial slope stability monitoring devices only show potential dangerous situations based upon experience without any corresponding displacement information. In this study, we use both numerical analysis method and limit equilibrium method to analyze the relationship among groundwater levels, stress, strain, and safety factor of sandy slopes. So, the influence of groundwater water levels on the sandy slope stabilities can be evaluated. It is found in different internal friction angles of sands that the safety factors of the slope will drop down rapidly when the critical water level is approached. This conclusion can be presented with two normalized parameters of Fs/tancp and HJH. Therefore two rapid assessment charts for evaluating the stability of sandy slopes are established. The method recommended in this study can also be used to evaluate the safety of real slopes which you don＇t have detailed influence factors.关键词
边坡监测指标/临界地下水位/安全系数/坡趾水平位移Key words
slope monitoring index/critical groundwater level/safety factor/horizontal displacement of slope toe分类
建筑与水利引用本文复制引用
陈骏瑜,李咸亨..砂质边坡安全性与快速评估方法研究[J].岩土工程学报,2012,34(8):1379-1386,8.
