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首页> 外文期刊>Mathematical Problems in Engineering >Slip Line Theory Based Stability Analysis on the Influence of Deep Excavation on Adjacent Slope
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Slip Line Theory Based Stability Analysis on the Influence of Deep Excavation on Adjacent Slope

机译：基于滑移线理论的深基坑对邻近边坡影响的稳定性分析

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摘要

The impact of deep excavation to the stability of adjacent slope is evaluated based on the slip line theory. Stress field of slope under various excavation conditions is simulated by finite element method, while slip line field is determined by non-associated flow rule. Factor of safety is obtained by integrating the skid-resistance and the shear stress on each slip line, and the slip line with minimum factor of safety corresponds to the critical slip surface. Two typical displacement constraint boundaries are considered. The results indicate that the critical slip surface moves towards to the slope surface and develops downwards. The factor of safety decreases with the excavation process. For flexible displacement constraint boundary, large deformation of supporting pile causes obvious variation of critical slip surface and factor of safety. In terms of the stiff displacement constraint boundary with internal supports, deep excavation only has limited effect on the slope stability.
机译：基于滑移线理论，评价了深基坑开挖对邻近边坡稳定性的影响。用有限元方法模拟了不同开挖条件下边坡的应力场，而滑移线场则用非关联流法则确定。安全系数是通过在每个滑移线上对防滑和剪切应力求积分而获得的，安全系数最小的滑移线对应于临界滑移面。考虑了两个典型的位移约束边界。结果表明，临界滑动面朝倾斜面移动并向下发展。安全系数随开挖过程而降低。对于柔性位移约束边界，支撑桩的大变形会引起临界滑移面的明显变化和安全系数。就具有内部支撑的刚性位移约束边界而言，深基坑开挖对边坡稳定性的影响有限。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第7期|2041712.1-2041712.7|共7页
  • 作者

    Zhou Aizhao; Li Chengchao; Jiang Pengming; Yao Kai; Li Na; Wang Wei;

  • 作者单位

    Jiangsu Univ Sci & Technol, Dept Civil & Architecture Engn, Zhenjiang 212003, Jiangsu, Peoples R China;

    Jiangsu Univ Sci & Technol, Dept Civil & Architecture Engn, Zhenjiang 212003, Jiangsu, Peoples R China;

    Jiangsu Univ Sci & Technol, Dept Civil & Architecture Engn, Zhenjiang 212003, Jiangsu, Peoples R China;

    Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore;

    Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;

    Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;

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