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    题名 作者 年代 出处 被引量
1压剪型危岩破坏弹冲动力参数研究显示文摘危岩崩塌具有突发性,属于能量快速释放的动力学过程。针对压剪型危岩,提出了压剪型危岩破坏力学模型,建立主控结构面锁固段切向抗力和剪切位移本构方程;发现危岩动力失稳瞬间系统的临滑聚能将释放并转换为危岩崩落动能,推导建立了危岩主控结构面锁固段断裂扩展所需耗能的计算公式,得到危岩临滑聚能和临滑释放能量随剪切位移增大的演化曲线,据此提出危岩突发性破坏后崩塌体弹冲速度和弹冲加速度计算公式。研究成果为进一步分析危岩崩落机制及致灾效应具有一定参考借鉴作用。陈洪凯 张瑞刚 唐红梅 赵先涛 2012振动与冲击2012,31,24:17
2The Séchilienne (France) Landslide:a Non-typical Progressive Failure Implying Major Risks显示文摘The National Road RN 91 has been threatened for about twenty-five years by a huge landslide, located 25 km south-east to the town of Grenoble (France). If several million cubic meters of rock fall down, the debris will dam the valley. Then the failure of the dam by overtopping and rapid erosion might result in a catastrophic flood and dramatic consequences for human life, environment and economy throughout the valley. The paper presents the hazard assessment based on geological and hydrological surveys, including small scale hydraulic tests, as well as the risk evaluation that has been performed. The risk management relies first upon a high level monitoring and an emergency plan; various mitigation strategies have been considered.Jean-Louis DURVILLE Christophe BONNARD Pierre POTHERAT 2011Journal of Mountain Science2011,8,2:0
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