| 节理岩体边坡模糊稳定性分析方法研究 |
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| 引用本文： | 徐卫亚,谈小龙,蒋中明. 节理岩体边坡模糊稳定性分析方法研究[J]. 岩石力学与工程学报, 2007, 26(6): 1232-1236 |
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| 作者姓名： | 徐卫亚 谈小龙 蒋中明 |
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| 作者单位： | 1. 河海大学,岩土工程研究所,江苏,南京,210098
2. 长沙理工大学,岩土工程研究所,湖南,长沙,410076 |
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| 基金项目： | 国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合研究基金 |
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| 摘 要： | 节理岩体边坡失稳破坏同时受控于节理与岩体抗剪强度。在对具有两组平行节理的岩体边坡失稳破坏机制研究基础上，探讨节理岩体边坡几何物理参数为模糊数情况下边坡稳定性评价的分析方法，给出节理岩体边坡模糊安全系数的计算公式，编制基于潜在滑动面自动搜索边坡模糊稳定性研究程序。算例研究成果表明，采用模糊分析方法可以对节理岩体边坡稳定性有更全面客观的了解，能为潜在不稳定边坡的稳定性评价和锚杆设计等提供重要的参考依据，避免发生由于计算参数不确定性引起的加固节理岩体边坡破坏情况。
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| 关 键 词： | 边坡工程 节理岩体边坡 失稳机制 模糊分析方法 模糊安全系数 |
| 文章编号： | 1000-6915（2007）06-1232-05 |
| 收稿时间： | 2006-08-11 |
| 修稿时间： | 2006-12-25 |
RESEARCH ON FUZZY ANALYTIC APPROACH FOR STABILITY ANALYSIS OF JOINTED ROCK SLOPE |
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| XU Weiya,TAN Xiaolong,JIANG Zhongming. RESEARCH ON FUZZY ANALYTIC APPROACH FOR STABILITY ANALYSIS OF JOINTED ROCK SLOPE[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6): 1232-1236 |
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| Authors: | XU Weiya TAN Xiaolong JIANG Zhongming |
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| Abstract: | The stability of jointed rock slope is controlled by the shear strength of joints and rock block simultaneously. Based on the research of failure mode of jointed rock slope with two sets of joints, the fuzzy characteristics of mechanical parameters in jointed rock slope are taken into account during stability analysis by fuzzy method. Formulae are proposed for the calculation of fuzzy safety factors of jointed rock slope. A program that can automatically search the potential sliding surface of jointed rock slope is also presented. The case study results indicate that the fuzzy analytic approach for stability analysis of jointed rock slope can offer more objective knowledge for slope stability and reference to bolt design when the jointed rock slope is unstable; therefore the failure situation because of the uncertainty of parameters can be avoided effectively. |
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| Keywords: | slope engineering jointed rock slope failure mechanism fuzzy analytic approach fuzzy safety factor |
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