| FLAC应用于岩质高边坡的稳定性分析 |
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| 引用本文： | 孙宗军,迟延智,李乃元,刘晓彬.FLAC应用于岩质高边坡的稳定性分析[J].岩土力学,2006,27(Z1):737-740. |
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| 作者姓名： | 孙宗军 迟延智 李乃元 刘晓彬 |
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| 作者单位： | 1. 山东科技大学，泰安 271019；2. 胶南市建筑工程质量监督站，胶南 266400；3. 胶南市市政公用事业管理处，胶南 266400 |
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| 基金项目： | 山东科技大学青年发展基金资助（065400506） |
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| 摘 要： | 针对岩质高边坡的稳定性采用差分方法进行分析，通过对原始边坡和开挖后边坡的比较，岩质高边坡的破坏方式为旋转剪切滑动，滑动面为圆弧形的，应用圆弧法计算边坡稳定性。位移场分析得出，边坡的水平位移和竖直位移均比较大，位移区分层明显。应力场分析结果表明，原始边坡最大主应力和最小主应力方向主要为垂直向下，在坡角处，最大主应力和最小主应力发生了明显的偏转；开挖后，最小主应力在坡脚处出现应力集中，最大主应力不明显，坡顶和坡面一定厚度的岩体处于应力区，坡面一定厚度的岩体向着临空面滑移。
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| 关 键 词： | 拉格朗日差分法 岩质高边坡 稳定性 |
| 收稿时间： | 2006-07-15 |
Stability analysis of high rock slope with FLAC |
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| SUN Zong-jun,CHI Yan-zhi,LI Nai-yuan,LIU Xiao-bin.Stability analysis of high rock slope with FLAC[J].Rock and Soil Mechanics,2006,27(Z1):737-740. |
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| Authors: | SUN Zong-jun CHI Yan-zhi LI Nai-yuan LIU Xiao-bin |
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| Affiliation: | 1. Shandong University of Science and Technology, Taian 271019, China；2. Jiaonan Administering Department of Quality of Civil Engineering,
Jiaonan 266400, China；3. Jiaonan Civil Engineering Administering Department, Jiaonan 266400, China |
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| Abstract: | The stability of high rock slope is analyzed with finite difference method. Comparing the difference between original and excavated slope some conclusions are acquired. The destroy mode is round and cut slippage. The slide face is an arc.So arc method is used to calculate the slope stability. The level and vertical displacement is relatively big. The delamination is evident. The maximum and minor principal stress is vertical. And their direction is inclined at the corner of the slope. The minor principal stress of the excavated slope is concentrated. The maximum one is not evident. Some rock area of at the tip and surface of the slope is tension- stress. And some rock slides towards the empty face. |
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| Keywords: | fast Lagrangian analysis for continuum rock high slope stability analysis |
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