| 基于FLAC数值模拟的边坡稳定性分析 |
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| 引用本文： | 张俊阳,舒继森,郭兵兵,包建民.基于FLAC数值模拟的边坡稳定性分析[J].露天采矿技术,2008(5). |
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| 作者姓名： | 张俊阳 舒继森 郭兵兵 包建民 |
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| 作者单位： | 1. 中国矿业大学矿业工程学院,江苏,徐州,221008;煤炭资源与安全开采国家重点实验室,江苏,徐州,221008
2. 神华北电胜利能源有限公司露天矿,内蒙古,锡林浩特,026000 |
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| 摘 要： | 利用有限差分法,使用FLAC数值模拟软件来分析边坡稳定性。通过强度折减,当折减系数达到某一数值时,系统达到不稳定状态,边坡内一定幅值的总等效剪应变自坡底向坡顶贯通,认为边坡破坏。结合露天矿边坡实例,FLAC程序通过不断降低土体抗剪强度参数,使边坡达到破坏状态得到破坏滑动面,从而表明FLAC强度折减法适用于露天矿开挖边坡的稳定性分析。
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| 关 键 词： | 边坡稳定性分析 强度折减法 FLAC 数值模拟 |
Slope stability analysis based on FLAC numerical simulation |
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| ZHANG Jun-yang,SHU Ji-sen,GUO Bing-bing,BAO Jian-min.Slope stability analysis based on FLAC numerical simulation[J].Opencast Mining Technology,2008(5). |
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| Authors: | ZHANG Jun-yang SHU Ji-sen GUO Bing-bing BAO Jian-min |
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| Affiliation: | ZHANG Jun-yang1,2,SHU Ji-sen1,GUO Bing-bing1,BAO Jian-min3(1.School of Mining Engineering,China University of Mining , Technology,Xuzhou 221008,China,2.State Key Laboratory of Coal Resources , Mine Safety,3.Shengli Open-pit Mine,Shenhua Beidian Energy Co.,ltd,Xinlinhaote 026000,China) |
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| Abstract: | With the finite difference method,an analysis on slope stability by FLAC numerical simulation is presented.When the reduction factor achieves some value,the system reaches instability,the equivalent shearing penetrates from the base to the top of slope,a well defined failure shear stain zone is formed in the slope.According to the example of the open-pit,reducing the soil shearing strength parameter continuously,the destruction sliding surface is obtained by FLAC,it is believed that the FLAC shear reduction... |
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| Keywords: | FLAC |
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