| 抚顺西露天矿蠕动边坡变形特征及稳定性动态分析 |
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| 引用本文： | 杨天鸿,芮勇勤,唐春安,李连崇,申力.抚顺西露天矿蠕动边坡变形特征及稳定性动态分析[J].岩土力学,2004,25(1):153-156. |
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| 作者姓名： | 杨天鸿 芮勇勤 唐春安 李连崇 申力 |
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| 作者单位： | 1.东北大学138信箱 辽宁 沈阳 110006；2.长沙交通学院 湖南 长沙 410076；3. 煤科总院抚顺分院 辽宁 抚顺 113001 |
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| 摘 要： | 以抚顺西露天矿北帮边坡为例，分析了边坡变形规律和破坏机制。在弱层流变试验的基础上，建立了弱层流变力学模型。通过确定加速蠕变阶段来临的极限应变量和应变速率，建立了弱层长期强度的时间效应方程，对于不同的边坡工况进行了动态稳定性评价。分析结果表明,采取相应的治理工程之后，边坡稳定系数明显提高，为控制边坡的蠕动变形破坏发展提供了科学依据。
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| 关 键 词： | 蠕变试验 倾倒滑移体 动态稳定性 失稳预测 |
| 文章编号： | 1000-7598-(2004)01-0153-04 |
| 收稿时间： | 2002-09-17 |
| 修稿时间： | 2002年9月17日 |
Study on deformation features and dynamic stability of creeping slope of Fushun West Strip Mine |
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| YANG Tian-hong,RUI Yong-qin,TANG Chun-an,LI Lian-chong,SHEN Li.Study on deformation features and dynamic stability of creeping slope of Fushun West Strip Mine[J].Rock and Soil Mechanics,2004,25(1):153-156. |
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| Authors: | YANG Tian-hong RUI Yong-qin TANG Chun-an LI Lian-chong SHEN Li |
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| Institution: | 1. Northeastern University, Shenyang 110004, China; 2. University of Changsha Communications, Changsha 410076, China; 3. Fushun Branch of CCRI, Fushun 113001, China |
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| Abstract: | Taking Fushun Strip Coal Mine Slope for example, the failure mechanism and distortion rule of the slope are analyzed. Based on the creep test of soft layer, a mechanical model of creeping was proposed. Time effect equation of long term strength was established by measuring ultimate strain and strain velocity during the creeping of soft layer. According to the equation, dynamic stability of the slope was evaluated. The results show that the stability was heightened greatly after reinforcement and drain. The model provides a method for predicting and controlling the stability of creeping slope. |
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| Keywords: | creep test toppling-displaced mass dynamic stability instability prediction |
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