| 水位下降卸荷诱发库岸边坡快速失稳机理分析 |
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| 引用本文： | 包太,刘新荣,税月.水位下降卸荷诱发库岸边坡快速失稳机理分析[J].水文地质工程地质,2004,31(5):7-11. |
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| 作者姓名： | 包太 刘新荣 税月 |
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| 作者单位： | 1. 重庆大学土木工程学院,重庆,400045
2. 贵州工业大学土建学院,贵阳,550003 |
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| 基金项目： | 留学回国人员科研启动基金(教外司留[2002]247号) |
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| 摘 要： | 本文以某工程现场岩质边坡为例，采用与传统裂隙水压力分布不同的水压力分布方式和边坡裂隙中可能发生的水锤效应相耦合，分析研究了岩质边坡发生滑动的机理及稳定性。研究表明，本文所采用的水压力分布方式较为符合边坡中的水压力分布实际情况，可以给出一个较为合理的稳定系数。当考虑水锤效应时，岩质边坡的稳定系数大大降低，说明水锤效应加剧了边坡破坏失稳的过程。本文所采用的水压力分布方式与边坡裂隙中的水锤效应相耦合的计算方法，在边坡稳定性分析中具有参考意义。
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| 关 键 词： | 卸荷 裂隙 边坡 水压力 水锤效应 |
| 文章编号： | 1000-3665(2004)05-0007-05 |
On the rapid failure of slope induced by unloading during drawdown |
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| BAO Tai,LIU Xin-rong,SHUI Yue.On the rapid failure of slope induced by unloading during drawdown[J].Hydrogeology and Engineering Geology,2004,31(5):7-11. |
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| Authors: | BAO Tai LIU Xin-rong SHUI Yue |
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| Institution: | BAO Tai~1,LIU Xin-rong~1,SHUI Yue~2 |
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| Abstract: | The process of lowering the water lever often induced the rapid failure of slope. However, the mechanism still is not learnt. Based on site data of a rock slope, stability of the rock slope is analyzed successfully using hybrid special pattern of water pressure distribution and dynamic feedback in the crack slope. The study indicates that this water pressure distribution is in close agreement with the site that of the rock slope and a reasonable safety factor is obtained. When the dynamic feedback is considered, the safety factor will be reduced remarkably, which shows that the dynamic feedback will speed up breakdown of the slope. The developed hybrid model in this paper is of significance for reference in the stability analysis of slope. |
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| Keywords: | unload crack slope water pressure dynamic feedback |
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