| 水位变化对库区某岩质边坡的稳定性影响分析 |
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| 引用本文： | 左良栋,周世良,吴飞桥,王全.水位变化对库区某岩质边坡的稳定性影响分析[J].地下空间与工程学报,2010,6(2). |
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| 作者姓名： | 左良栋 周世良 吴飞桥 王全 |
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| 作者单位： | 重庆交通大学河海学院,重庆,40007 |
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| 基金项目： | 重庆市自然科学基金，省部共建水利水运工程教育部重点实验室开放基金 |
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| 摘 要： | 三峡水库岩质边坡的结构十分复杂、所处的地质环境多样,极易发生失稳破坏。传统的极限平衡理论的分析方法在对岩质边坡的稳定性分析上存在一定的局限性,分析结果存在一定偏差。文章采用有限元强度折减法,分析了库水位变化及岸坡结构面宽度改变与边坡稳定性影响的关系。研究表明,库水位变动速度的增加和结构面宽度的增大都会使得岸坡稳定性降低,两者变化均存在一个临界值,当变化超过这一临界值时,滑动面由浅层向深层发展,安全系数骤降。
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| 关 键 词： | 三峡水库 岩质边坡 稳定性 影响因素 有限元强度折减 |
Research on the Stability of a Rock Slop in the Three Gorges Reservoir Influenced by Reservoir Flow |
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| Zuo Liangdong,Zhou Shiliang,Wu Feiqiao,Wang Quan.Research on the Stability of a Rock Slop in the Three Gorges Reservoir Influenced by Reservoir Flow[J].Chinese Journal of Underground Space and Engineering,2010,6(2). |
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| Authors: | Zuo Liangdong Zhou Shiliang Wu Feiqiao Wang Quan |
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| Affiliation: | Zuo Liangdong,Zhou Shiliang,Wu Feiqiao,Wang Quan(School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074) |
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| Abstract: | The rock slop in the Three Gorges Reservoiris collapsed easily,because its configuration is very complex and geological entourage is multiplex.There are partial limits in the application of the traditional landslide stability analysis on rock slop stability.The relation of reservoir flow,flag breath and stability of slop were analyzed in the test by strength reduction FEM.Some conclusions can be obtained as follows: the stability of slop decreases when the speed of reservoir level fluctuation increases and ... |
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| Keywords: | Three Gorges Reservoir rock slop stability influence factor strength reduction FEM |
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