| 思林水电站通航建筑物高边坡稳定分析和评价 |
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| 引用本文： | 徐力群,沈振中,俞凯加,吕军.思林水电站通航建筑物高边坡稳定分析和评价[J].岩土力学,2008,29(Z1):42-46. |
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| 作者姓名： | 徐力群 沈振中 俞凯加 吕军 |
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| 作者单位： | 贵阳勘测设计研究院,贵阳,550002 |
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| 摘 要： | 应用ANSYS结构分析软件,模拟了思林水电站通航建筑物高边坡的地形、地质条件以及开挖的过程,建立边坡开挖的有限元计算分析模型,分析边坡在自然状态、分级开挖以及锚杆支护加固等工况下的应力、变形及其整体稳定性.定义单元的局部安全系数,得到了边坡开挖加固后稳定安全系数的分布.根据计算成果,指出现设计加固措施可以保证边坡稳定,无需增加其他工程措施.
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| 关 键 词： | 岩体边坡 分级开挖 有限元 局部安全系数 稳定 |
| 收稿时间： | 2008-07-24 |
Stability analysis and estimation of slope excavation of Silin Hydropower Station's navigation lock |
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| XU Li-qun,SHEN Zhen-zhong,YU Kai-jia,L Jun.Stability analysis and estimation of slope excavation of Silin Hydropower Station's navigation lock[J].Rock and Soil Mechanics,2008,29(Z1):42-46. |
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| Authors: | XU Li-qun SHEN Zhen-zhong YU Kai-jia L Jun |
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| Institution: | 1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. Guiyang Hydropower Investigation Design and Research Institute, Guiyang 550002, China |
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| Abstract: | By use of the ANSYS, the software of finite element structure analysis, a finite element analysis model is set up for slope excavation, and the landform and geological condition and excavation process of Silin Hydropower Station’s navigation lock are simulated in detail. The stress, displacement and factor of safety of slope stability are analyzed under different conditions such as the natural condition, excavation step by step and reinforcement by anchor rod etc. Based on the definition of local factor of safety of element, the distribution of factor of safety of slope stability is obtained for before and after reinforcement during excavation. According to the calculation result, it is shown that the slope is stable under the designed engineering measure and without other reinforcement measure. |
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| Keywords: | rock slope stage excavation finite elements local factor of safety stability |
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