| 水下岩质边坡稳定性计算模式的探讨 |
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| 引用本文： | 刘涛,沈明荣,陈建峰,宗军良.水下岩质边坡稳定性计算模式的探讨[J].水文地质工程地质,2006,33(4):5-8. |
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| 作者姓名： | 刘涛 沈明荣 陈建峰 宗军良 |
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| 作者单位： | 同济大学地下建筑与工程系,上海,200092 |
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| 摘 要： | 论文讨论了水下岩质边坡稳定性分析中平面型滑动及其边坡后缘出现拉张裂缝等两种计算模式，着重分析了水下岩质边坡的受力机理，推导了考虑动水的水流速度及不同的滑动面倾角等水下岩质边坡稳定性评价公式，得到了岩质边坡稳定系数与水流速度的关系曲线和岩质边坡稳定系数与滑动面夹角的关系曲线。通过实例计算，讨论了水下岩质边坡后缘出现拉张裂缝后稳定性评价的主要影响因素及其变化规律。当考虑水流速度对边坡的作用时，边坡的稳定性明显下降。
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| 关 键 词： | 水下岩质边坡 水流速度 边坡稳定 计算模式 |
| 文章编号： | 1000-3665（2006）04-0005-04 |
| 收稿时间： | 2005-10-19 |
| 修稿时间： | 2006-02-23 |
Calculating mode for the stability of underwater rock slope |
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| LIU Tao,SHEN Ming-rong,CHEN Jian-feng,ZONG Jun-liang.Calculating mode for the stability of underwater rock slope[J].Hydrogeology and Engineering Geology,2006,33(4):5-8. |
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| Authors: | LIU Tao SHEN Ming-rong CHEN Jian-feng ZONG Jun-liang |
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| Institution: | Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | This paper discusses on the two calculating modes about the stability of underwater rock slope including sliding-plane type and tensile crack type at rear of the rock slope, studies on the load mechanism of underwater rock slope and deduces two calculating formulas for the stability evaluation of the rock slope considering the moving water velocity and different sliding-plane angles. Relationship curve between the stability of underwater rock slope and water current velocity and relationship curve between the stability of underwater rock slope and sliding-plane angles are obtained. Through validation part of calculating mode by the analysis of the typical example, we found some main influence factors and changing pattern. The conclusion, which the stability of underwater rock slope is obviously decreasing when considering velocity, is obtained. |
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| Keywords: | underwater rock slope flow velocity slope stability calculating mode |
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