| 坠落式危岩剧动式崩落与激振效应 |
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| 引用本文： | 唐红梅,王智,鲜学福,陈洪凯.坠落式危岩剧动式崩落与激振效应[J].重庆大学学报(自然科学版),2011,34(10):39-45. |
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| 作者姓名： | 唐红梅 王智 鲜学福 陈洪凯 |
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| 作者单位： | 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044;重庆交通大学岩土工程研究所,重庆400074;重庆交通大学岩土工程研究所,重庆400074;重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044;重庆交通大学岩土工程研究所,重庆400074 |
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| 基金项目： | 国家自然科学基金资助项目(50678182) |
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| 摘 要： | 针对坠落式危岩，考虑自重和裂隙水压力影响因素作用下，建立危岩崩落激振效应物理模型。联合断裂力学和波动理论从能量角度量化危岩体之间的相互作用，获取崩塌体崩落瞬间的启程速度计算式，根据危岩崩落激振波在岩体内的传播机理,构建了激振波作用下岩体介质质点位移速度计算方法。通过实例分析，建立的坠落式危岩剧动式崩落与激振效应分析结论和实际情况基本一致，对进一步实施危岩破坏及演化机制研究提供了科学依据。
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| 关 键 词： | 岩石力学 激振波 应变能 危岩 主控结构面 |
Violent-slide rock avalanche and excitation effect of perilous rock |
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| TANG Hong mei,WANG Zhi,XIAN Xue fu and CHEN Hong kai.Violent-slide rock avalanche and excitation effect of perilous rock[J].Journal of Chongqing University(Natural Science Edition),2011,34(10):39-45. |
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| Authors: | TANG Hong mei WANG Zhi XIAN Xue fu and CHEN Hong kai |
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| Institution: | Key Laboratory For the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, Chongqing400044, P.R.China;Institute of Geotechnical Engineering, Chongqing Jiaotong University, C;Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing400074 , P.R.China;Key Laboratory For the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, Chongqing400044, P.R.China;Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing400074 , P.R.China |
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| Abstract: | The physical model of perilous rock avalanche excitation effect is deudofed based on the effect of the main factors, such as weight and fissure water pressure. It quantizes the interaction of perilous rock masses through the energy point of fracture mechanics and wave theory, and gains the departure rate formula of landslide body at momentary avalanche. The particle displacement rate calculation method of perilous rock medium under the action of excitation waves is developed based on the formation of perilous rock avalanche excitation waves and the spread mechanism in slope rock formation. The example shows that the analysis results established are coincident with actual situation. Some scientific basis is provided for the further research of perilous rock damage and evolutionary mechanisms. |
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| Keywords: | rock mechanics excitation wave strain energy perilous rock dominant fissure |
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