水文地质工程地质2013，Vol.40Issue(2)：74-78,5.
加筋土边坡安全评价的简化水平条分法
Simplified horizontal slice method of reinforced soil slopes safety analysis
乐超 1徐超2
作者信息
- 1. 同济大学岩土及地下工程教育部重点实验室,上海200092
- 2. 同济大学地下建筑与工程系,上海200092
- 折叠
摘要
Abstract
In the analysis of the factor of safety of reinforced soil fill slopes, the horizontal tension forces of reinforcing elements and seismic forces cannot be considered properly for common vertical slice methods and the result is a little conservative. The proposed horizontal slice method, which is based on the Morgenstern-Price Method, complies strictly with the limit equilibrium condition, but both of the factor of safety and the scaling factor must be computed iteratively, which makes the method too complex to be popularized in the engineering design. In this paper, the expression of the factor of safety of the simplified horizontal slice method is based on the assumption of inter-slice tangential force Xi made by Janbu, and the simplified calculation of inter-slice normal force Ei, which should be computed iteratively just for the factor of safety, makes the computational process simpler and clearer. Two cases of reinforced soil slopes are analyzed by using the Bishop vertical slice method. The simplified horizontal slice method is proposed in this paper and the computation results are compared. The result shows that the proposed method is rational and simple to use.关键词
加筋土边坡/极限平衡/简化水平条分法/地震荷载Key words
reinforced soil slopes/ limit equilibrium/ simplified horizontal slice method/ seismic load分类
天文与地球科学引用本文复制引用
乐超,徐超..加筋土边坡安全评价的简化水平条分法[J].水文地质工程地质,2013,40(2):74-78,5.
