| 可变网格的有限单元分析在边坡稳定计算中的应用 |
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| 引用本文： | 刘钧,张炜.可变网格的有限单元分析在边坡稳定计算中的应用[J].工程地质学报(英文版),1995,3(2):54-59. |
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| 作者姓名： | 刘钧 张炜 |
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| 作者单位： | 1.中国科学院地质研究所,北京100029; |
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| 基金项目： | 中国科学院工程地质力学开放研究实验室资助 |
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| 摘 要： | 本文在非线性有限单元法的基础上，引进八节点的狭长单元来描述边坡中的滑动面，同时对于有限元单元网格可调节点坐标进行变更形成新的网格，于是利用原有基本网格架，通过多次有限元分析求出边坡中可能滑动面的稳定系数曲线Ｋ＝ｆ（），并进而确定最危险的滑动面，在此基础上开展一系列稳定分析工作。
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| 关 键 词： | 狭长单元 固定节点 浮动节点 可调节点 |
| 收稿时间： | 1994-09-23 |
APPLICATION OF FINITE ELEMENT ANALYSIS OF VARIABLE GRIDES TO CALCULATION OF SLOPES STABILITY |
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| Lui Jun.APPLICATION OF FINITE ELEMENT ANALYSIS OF VARIABLE GRIDES TO CALCULATION OF SLOPES STABILITY[J].Journal of Engineering Geology,1995,3(2):54-59. |
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| Authors: | Lui Jun |
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| Institution: | 1.Insititute of Geoiogy, Academia Sinica,Beijing 1000029;2.Jinchun Company of Non-ferrous Metals, Jinchuan 730073 |
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| Abstract: | The sliding surface in a slope is described by using enlongated elements with eight nodes on the basis of non-linear finite element analysis in this paper. The coordinate system for adjustable nodes in finite element gride is modified to from a new gride. Thus, using existing basic gride framework, a stability curve for possible sliding surface in slope , K=f () ,is found by multiple finite element analysis and the most dangerous sliding surface is determined. On this basis a series of stability analysis is made. |
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| Keywords: | Elongated element Fixed node Fluctuating node Adjustable node Slope stability |
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