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### 有限元强度折减法在边坡稳定分析中的应用

1. 1. 山东大学土建与水利学院, 山东 济南 250061;2. 四川省遂宁市水务局, 四川 遂宁 629000
• 收稿日期:2015-11-26 出版日期:2016-08-20 发布日期:2015-11-26
• 通讯作者: 马秀媛(1965— ),女,山东蓬莱人,副教授,博士,主要研究方向为岩土工程渗流及稳定性.E-mail:maxiuyuan@sdu.edu.cn E-mail:ljaxd@foxmail.com
• 作者简介:刘金(1991— ),女,河北沧州人,硕士研究生,主要研究方向为岩土工程. E-mail:ljaxd@foxmail.com
• 基金资助:
国家科技支撑计划资助项目(2015BAB07B05)

### Application of strength reduction FEM method in slope stability analysis

LIU Jin1, LI Qinchang2, MA Xiuyuan1

1. 1. School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China;
2. Suining Water Authority of Sichuan Province, Suining 629000, Sichuan, China
• Received:2015-11-26 Online:2016-08-20 Published:2015-11-26

Abstract: To study the influence of Quhe embankment cross-river bridge pile foundation project on the embankment stability, the FEM was applied to analyze the reinforcement plan of the embankment slope and the construction process. By generalizing the embankment cross-section diagram of the Quhe bridge, a two-dimensional plane strain FEM calculation model was built. The strength reduction FEM method was employed to analyze the circumstances of the designed slope broadening and pile-hole construction. The calculation results showed that the minimum stability safety factor reached 1.179 and met the specification required value 1.150 when the slope gradient was adjusted to 1.00∶3.00. The slope stability safety factor were all larger than 1.150 during the pile hole excavation and the slope stability could be guaranteed, while the seepage deformation and plastic deformation safety problems of pile hole wall existed and protective measures should be taken.

• TU43
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