| 大变形有限元确定边坡潜在滑面的位移判据 |
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| 引用本文： | 杨涛,周德培,罗阳明. 大变形有限元确定边坡潜在滑面的位移判据[J]. 四川建筑科学研究, 2006, 32(5): 98-101 |
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| 作者姓名： | 杨涛 周德培 罗阳明 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031;西南交通大学土木工程学院,四川,成都,610031;西南交通大学土木工程学院,四川,成都,610031 |
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| 摘 要： | 边坡潜在滑面的确定是边坡稳定性分析的主要任务之一，鉴于坡体位移可在现场监测中直接得到，本文提出边坡潜在滑面确定的位移判据，采用大变形有限元，首先计算出边坡的塑性区和位移场，然后在开挖面的不同高度作塑性区内的水平位移参考线，依次连接参考线上的位移突变点，即得到边坡失稳的潜在滑面位置。
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| 关 键 词： | 开挖边坡 潜在滑面 位移判据 数值计算 边坡稳定性分析 |
| 文章编号： | 1008-1933（2006）05-0098-04 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-04-29 |
Displacement criterion of determination of slope slip surface by FLAC3D |
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| YANG Tao,ZHOU Depei,LUO Yangming. Displacement criterion of determination of slope slip surface by FLAC3D[J]. Building Science Research of Sichuan, 2006, 32(5): 98-101 |
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| Authors: | YANG Tao ZHOU Depei LUO Yangming |
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| Affiliation: | Geotechnical Eng. Dep. of Southwest Jiaotong University,Chengdu 610031 ,China |
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| Abstract: | One of the tasks in the stability study of excavating slope is how to determinate the slip surface. Think of the displacement is easy to get in the engineering, we put forward using the displacement criterion to determinate the slope slip surface. Firstly, calculate the plastic zone and displacement field using FLAC30 ,secondly ,make some horizon displacement reference line on the working plane in the plastic zone, then, find out the accident point of displacement on the reference line. When those point is joined by a line progressively, the potential slip surface is found. |
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| Keywords: | excavation slope slip surface displacement criterion numerical calculation stability analysis of slope |
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