| 岩质顺层边坡的平面滑移破坏机制分析 |
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| 引用本文： | 路为,白冰,陈从新.岩质顺层边坡的平面滑移破坏机制分析[J].岩土力学,2011,32(Z2):204-207. |
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| 作者姓名： | 路为 白冰 陈从新 |
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| 作者单位： | 山东大学岩土工程与结构研究中心;交通运输部公路科学研究院;中交第二公路勘察设计研究院有限公司;中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室; |
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| 基金项目： | 国家自然科学基金(No.10872207); 中国科学院知识创新工程重要方向项目(No.KZCX2-YW-151) |
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| 摘 要： | 沿岩层层面的平面滑动破坏是顺层边坡发生最多、规模很大的一种破坏模式,根据其顺层滑移的力学机制将平面破坏分为滑移-拉裂型和水力驱动型两种类型。根据平面刚体模型,给出了滑移-拉裂型滑坡的失稳判据,即滑坡的条件为边坡高度要大于临界高度。地下水在顺层边坡后缘张裂隙和滑动面形成的渗流通道中运动时,对滑体将产生3个方面的力学作用:张裂隙静水压力、滑动面扬压力和拖曳力。根据水力-驱动型滑坡的计算分析表明,边坡后缘张裂隙充水高度直接决定了3种水压力的大小,当张裂隙充水高度达到临界值后,边坡在水压力作用下发生滑移破坏。
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| 关 键 词： | 岩体 顺层边坡 平面滑移破坏 |
| 收稿时间： | 2011-04-11 |
Analysis of mechanism of plane sliding failure for bedded rock slopes |
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| LU Wei,BAI Bing,CHEN Cong-xin.Analysis of mechanism of plane sliding failure for bedded rock slopes[J].Rock and Soil Mechanics,2011,32(Z2):204-207. |
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| Authors: | LU Wei BAI Bing CHEN Cong-xin |
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| Institution: | 1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China; 2. Research Institute of Highway, Ministry of Transport, Beijing 100088, China; 3. Second Highway Consultants Co., Ltd., China Communications Construction Company Limited, Wuhan 430056, China; 4. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | Plane sliding failures of bedded rock slopes along the rock level occur frequently and in large-scale.According to the mechanism of bedded sliding,the plane failure is divided into two types,i.e.sliding rupture and hydraulic driving.According to plane rigid model,a sliding rupture landslide instable criterion is set up.The analysis results show that the landslide occurs when slope height is greater than the critical height.Groundwater flow through the passage that consists of the slide face and the trailing... |
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| Keywords: | rock mass bedded slope plane sliding failure |
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