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Position: Home > Articles > Strength Reduction Analysis for Stability of Reinforced Embankment on Soft Soil Bulletin of Soil and Water Conservation 2009 (1) 74-77

软土地基上加筋土路堤稳定的强度折减法分析

作  者:
祝云琪;曾四平
单  位:
同济大学道路与交通工程教育部重点实验室;宝钢工程技术有限公司冶炼设计部
关键词:
软土;加筋土路堤;稳定;强度折减法
摘  要:
针对软土地基上加筋土路堤的工程特点,采用强度折减联合有限差分的方法,从安全系数和潜在滑动面两个方面入手,得出了软土地基上加筋土路堤不同时刻的稳定特性,并分析了加筋层数、填料内摩擦角及地基模量等参数对稳定的敏感性。研究结果表明,软土地基上加筋土路堤不同时刻的稳定特性不同,增大筋材层数、填料的内摩擦角及地基模量,软土地基上加筋土路堤的稳定性有所增加,但超过一定阶段后,其增加程度不再明显。研究成果对软土地基上加筋土路堤的实际工程应用有一定的参考作用。
译  名:
Strength Reduction Analysis for Stability of Reinforced Embankment on Soft Soil
作  者:
ZHU Yun-qi1,ZENG Si-ping2(1.Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China;2.Smelting Design Department,Bao Steel Engineering Technology Limited Corporation of Shanghai City,Shanghai 201900,China)
关键词:
soft soil;reinforced embankment;stability;strength reduction method
摘  要:
According to the engineering characteristics of reinforced embankment on soft soil,the characteristics of stability of reinforced embankment on soft soil at different times are determined and the sensitivity of stability to layers of reinforcement,inner friction angle of stiffing,and module of ground are analyzed from two aspects of safety and potential sliding surface by means of strength reduction method and finite difference method.It is found that the more layer of reinforcement,the greater inner friction angle and module of ground are,and the more stable reinforced embankment on soft soil is.However,when some stage exceeds,the effect is no longer apparent.Results presented in the text will have an important reference value to practical engineering of reinforced embankment on soft soil.

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