| 爆破冲击边坡稳定性非连续变形分析模拟研究 |
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| 引用本文： | 刘永茜,杨军,余德运.爆破冲击边坡稳定性非连续变形分析模拟研究[J].兵工学报,2010(Z1). |
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| 作者姓名： | 刘永茜 杨军 余德运 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室; |
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| 基金项目： | 爆炸科学与技术国家重点实验室基金项目(ZDKT08-03e) |
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| 摘 要： | 非连续变形分析(DDA)是针对块体系统大变形大位移求解最有效的数值计算方法之一。结合应力波理论分析爆破冲击作用对边坡岩体的损伤破坏作用,采用DDA方法模拟了台阶爆破过程中边坡岩体的破坏滑移,与工程实际有较好的吻合。阐述了台阶爆破应力波对边坡块体系统位移、速度和应力变化的控制,讨论了影响边坡块体系统稳定性的关键因素,建立新的数学模型,给出了DDA计算中评价边坡稳定性指标的建议。
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| 关 键 词： | 非连续变形分析 数值模拟 冲击 破坏 边坡稳定性 |
Study on Simulation of Discontinuous Deformation Analysis for Slope Stability Under Blast Impact |
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| LIU Yong-qian,YANG Jun,YU De-yun.Study on Simulation of Discontinuous Deformation Analysis for Slope Stability Under Blast Impact[J].Acta Armamentarii,2010(Z1). |
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| Authors: | LIU Yong-qian YANG Jun YU De-yun |
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| Affiliation: | LIU Yong-qian,YANG Jun,YU De-yun(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Discontinuous deformation analysis(DDA) is one of the most effective numerical algorithms for block deformation and large displacement.With the help of stress wave theory,the damage and failure process of rock slope subjected to the blast impact were analyzed,and the slipping characteristics of the rock in the slope were simulated by using DDA.The analysis results match with the engineering survey perfectly.The stress wave's control to the displacement,velocity and stress of the slope-block-system in a benc... |
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| Keywords: | discontinuous deformation analysis numerical simulation impact failure slope stability |
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