摘要
含软弱土层的地基容易造成边坡的失稳,对人类财产生命带来严重威胁。结合工程实例,利用Geo-Slope软件中的刚体极限平衡计算模块Slope/w分析研究软弱土层与边坡稳定之间的关系,得出了在Bishop法,且考虑地下水情况下的最小安全系数与软弱土层中心埋深、厚度及土体参数的变化规律。分析结果表明边坡稳定的最小安全系数随着软弱土层中心埋深的增加而增加,随着软弱土层厚度的增加而减小;但同时也受软弱土层土体参数即黏聚力c及内摩擦角φ不同程度的影响。
The instability of slope is easy to be caused by the soft soil foundation and bring serious threat to hu- man property. Combining with practical engineering example, the rigid body limit equilibrium computation module Slope/w of Geo-Slope software is used to analyze the relationship between soft soil and the stability of slope. The model is calculated by means of Bishop method under the conditions with underground water to find the variation law in the minimum safety factor and the embedded depth and thickness of the soft foundation soil included its pa- rameters. The results indicate that the minimum safety factor of slope is increasing with increasing the embedded depth of soft foundation soil, and decreasing with the increasing thickness of soft foundation soil. At the same time, it is also influenced by the parameters of cohesive force C and internal friction angle phi in certain degree.
出处
《科学技术与工程》
北大核心
2014年第17期277-280,共4页
Science Technology and Engineering
关键词
边坡稳定
软弱土层
最小安全系数
毕肖普法
the stability of slope
soft foundation soil
the minimum safety factor
Bishop method
