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| 地震边坡稳定性的工程地质分析 | |
| 引用本文： | 祁生文,伍法权,刘春玲,丁彦慧.地震边坡稳定性的工程地质分析[J].岩石力学与工程学报,2004,23(16):2792-2797. |
| 作者姓名： | 祁生文 伍法权 刘春玲 丁彦慧 |
| 作者单位： | 1. 中国科学院地质与地球物理研究所工程地质力学重点实验室,北京,100029 2. 中国国土资源部航空物探遥感中心,北京,100083 3. 北京市地震局,北京,100080 |
| 基金项目： | 国家重点基础研究发展规划(973)项目(2002CB412701)，中国青年科学基金(40302032)联合资助课题 |
| 摘 要： | 归纳了地震作用下边坡稳定性的影响因素，把边坡分为2大类7亚类，分析了边坡在动力作用下的可能破坏形式，对地震边坡的失稳机制进行了探讨，认为地震边坡的失稳是由于地震惯性力的作用以及地震产生的超静孔隙水压力迅速增大和累积作用这两个方面原因造成的。对于不同的边坡类型，导致边坡动力失稳的主导因素也不同。塑性流动失稳破坏是由孔隙水压力的累积作用起主导作用；崩塌型、层体弯折型则是地震惯性力起决定作用；对于滑动型破坏一般是两种因素共同作用的结果。 |
| 关 键 词： | 工程地质 地震 边坡 稳定性 孔隙水压力 |
| 文章编号： | 1000-6915(2004)16-2792-06 |
| 收稿时间： | 2003-3-3 |
| 修稿时间： | 2003-5-29 |
ENGINEERING GEOLOGY ANALYSIS ON STABILITY OF SLOPE UNDER EARTHAUAKE |
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| Qi Shengwen,Wu Faquan,Liu Chunling,Ding Yanhui.ENGINEERING GEOLOGY ANALYSIS ON STABILITY OF SLOPE UNDER EARTHAUAKE[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(16):2792-2797. | |
| Authors: | Qi Shengwen Wu Faquan Liu Chunling Ding Yanhui |
| Affiliation: | Qi Shengwen1,Wu Faquan1,Liu Chunling2,Ding Yanhui 3 |
| Abstract: | The factors influencing stability of slope under earthquake are summarized according to characteristics of seismic force. The slopes are classified into two groups and seven subgroups,and their possible failure modes under dynamic force are analyzed. At the same time,the mechanism of earthquake-induced slope instability is discussed. It is concluded that seismic inertia force and building up of excess-static pore pressure are two reasons to induce instability of slope. For different slopes,the predominant factor inducing failure will be different. Plastic flow failure is mainly induced by building up of excess-static pore pressure. Rock fall and toppling failure are mainly caused by seismic inertia force. Slide failure is induced by building up of excess-static pore pressure combined with seismic inertia force in general. |
| Keywords: | engineering geology earthquake slope stability |
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