| FLAC强度折减法在边坡稳定性分析中的应用 |
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| 引用本文： | 刘娉慧,房后国,黄志全,刘煊. FLAC强度折减法在边坡稳定性分析中的应用[J]. 华北水利水电学院学报, 2007, 28(5): 52-54,58 |
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| 作者姓名： | 刘娉慧 房后国 黄志全 刘煊 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450011;黄河勘测规划设计有限公司,河南,郑州,450003 |
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| 基金项目： | 华北水利水电学院校科研和教改项目 , 河南省高校杰出科研创新人才工程项目 , 河南省科技攻关项目 |
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| 摘 要： | 将FLAC强大的数值计算能力与强度折减技术相结合,以广义剪应变发展与数值计算的不收敛性作为边坡失稳的评价依据,利用FLAC计算结果的动态显示技术,描绘出了边坡失稳形态,为准确判定边坡的真实受力状态提供可靠的依据.通过对三交坪边坡不同工况下的稳定性分析表明,强度折减所确定的边坡安全系数与传统极限平衡法所得的结果十分接近,滑面的形状及位置也极为相似,因此认为该方法是合理可行的.
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| 关 键 词： | 强度折减 数值计算 边坡稳定 破坏判断 FLAC |
| 文章编号： | 1002-5634（2007）05-0052-03 |
| 修稿时间： | 2007-04-302007-06-10 |
Application of Strength Reduction Method in FLAC to Analysis of Slope Stability |
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| LIU Ping-hui,FANG Hou-guo,HUANG Zhi-quan,LIU Xuan. Application of Strength Reduction Method in FLAC to Analysis of Slope Stability[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2007, 28(5): 52-54,58 |
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| Authors: | LIU Ping-hui FANG Hou-guo HUANG Zhi-quan LIU Xuan |
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| Affiliation: | 1. North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011 ,China; 2. Yellow River Engineering Consulting Co. Ltd. Zhengzhou 450003 ,China |
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| Abstract: | The strong numerical calculation ability of FLAC is combined with strength reduction technology to seek reliable analytical method of slope stability under complex geological conditions and considering ground water and interacting of support structure with rock mass or soil mass. Stability analysis of Sanjiaoping slope under diverse work condition indicates that the result of strength reduction method is approximate to classical limit equilibrium method. The shape and the position of sliding surface are similar. So, the suggested method is rational. |
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| Keywords: | strength reduction numerical calculation slope stability failure judgment FLAC |
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