| 基于非连续变形分析的水库岩体边坡稳定分析方法 |
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| 引用本文： | 沈振中,大西有三. 基于非连续变形分析的水库岩体边坡稳定分析方法[J]. 水利学报, 2004, 0(3): 117-122,128 |
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| 作者姓名： | 沈振中 大西有三 |
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| 作者单位： | 河海大学,水利水电工程学院,江苏,南京,210098;京都大学,土木工程系统系,日本,京都,606-8501 |
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| 基金项目： | 河海大学科技创新基金资助(2003401643) |
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| 摘 要： | 非连续变形分析(DiscontinuousDeformationAnalysis,DDA)是基于运动学理论的块体系统分析方法,它严格遵循经典力学规则,以位移为未知函数,可在没有块体相互嵌入的加载条件下获得块体系统的大变形结果。本文基于这一方法,分析了岩体边坡的变形规律,提出了岩体边坡破坏时极限摩擦角的确定方法。利用安全系数的概念,考虑库水位骤降时的地下水渗透压力的作用,对水库边坡进行稳定分析,得到了多种水位变化条件下,岩体边坡的稳定安全系数。
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| 关 键 词： | 岩体边坡 稳定 极限摩擦角 安全系数 DDA |
| 文章编号： | 0559-9350(2004)03-0117-07 |
Stability analysis method for reservoir rock slope based on discontinuous deformation analysis |
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| SHEN Zhen-zhong,Ohnishi Yuzo. Stability analysis method for reservoir rock slope based on discontinuous deformation analysis[J]. Journal of Hydraulic Engineering, 2004, 0(3): 117-122,128 |
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| Authors: | SHEN Zhen-zhong Ohnishi Yuzo |
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| Affiliation: | SHEN Zhen-zhong~1,Ohnishi Yuzo~2 |
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| Abstract: | The discontinuous deformation analysis (DDA) is applied to study the deformation law of the rock slope and the method for determining the ultimate friction angle during failure is proposed. Based on the concept of safety factor, the stability of the rock slope in a reservoir is analyzed in which the groundwater seepage pressure due to reservoir water level sudden drawdown is considered. |
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| Keywords: | rock slope stability ultimate friction angle safety factor discontinuous deformation analysis (DDA) |
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