| 超载下桩锚支护基坑安全系数的计算分析 |
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| 引用本文： | 朱建明,李金,刘英华.超载下桩锚支护基坑安全系数的计算分析[J].力学与实践,2007,29(2):40-42. |
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| 作者姓名： | 朱建明 李金 刘英华 |
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| 作者单位： | 北京航空航天大学土木工程系 北京航空航天大学土木工程系 清华大学 |
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| 摘 要： | 假设桩锚支护下基坑土体塑性变形破坏机构以及满足边界条件的合理机
动场，而不是传统方法中那样将土体离散为许多相对运动的刚性块. 运用土塑性力学中
极限分析法的上限定理从能量功率角度探讨了超载下桩锚支护基坑竖直边坡安全系数的计算
方法. 并以一工程为例，用FLAC数值分析软件的模拟结果对该方法进行了验证.
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| 关 键 词： | 上限定理 超载 桩锚支护 安全系数 |
| 收稿时间： | 2006-7-20 |
| 修稿时间： | 2006-07-202006-11-16 |
CALCULATION OF SAFETY FACTOR OF PILE ANCHORAGE SYSTEM IN FOUNDATION UNDER ATTACHED LOAD |
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| ZHU Jianming,LI Jin,LIU Yinghua.CALCULATION OF SAFETY FACTOR OF PILE ANCHORAGE SYSTEM IN FOUNDATION UNDER ATTACHED LOAD[J].Mechanics and Engineering,2007,29(2):40-42. |
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| Authors: | ZHU Jianming LI Jin LIU Yinghua |
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| Institution: | 1.Department of Civil Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;2.Department of Mechanics, Tsinghua University, Beijing 100084, China |
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| Abstract: | The plastic failure pattern of soil and the reasonable kinematic pattern satisfying the boundary conditions are assumed for the pile anchorage system in the foundation pit in this paper,unlike the conventional method,where soil is divided into several rigid pieces.The safety factor for the vertical slope of the pile anchorage system in the foundation pit under attached load is calculated based on the upper bound method of limit analysis of soil plasticity.An engineering example is given to validate the method with software FLAC. |
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| Keywords: | FLAC |
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