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| 强降雨条件下浅层滑坡失稳的尖点突变机理 | |
| 引用本文： | 郑重,赵云胜,刘能铸,张卫中.强降雨条件下浅层滑坡失稳的尖点突变机理[J].湖南科技大学学报(自然科学版),2012,27(1):63-67. |
| 作者姓名： | 郑重 赵云胜 刘能铸 张卫中 |
| 作者单位： | 1. 中国地质大学工程学院,湖北武汉430023;中南财经政法大学信息与安全工程学院,湖北武汉430074 2. 中国地质大学工程学院,湖北武汉,430023 3. 云南明仁煤矿检测技术有限公司,云南昆明,650224 4. 中南财经政法大学信息与安全工程学院,湖北武汉,430074 |
| 基金项目： | 国家自然科学基金资助项目(51104176) |
| 摘 要： | 采用统计学的分析方法定量分析和归纳总结了浅层堆积物滑坡演化过程中坡体位移和降雨量之间的幂函数分布关系;结合向家坡滑坡工程实例,考虑浅层滑坡坡体位移与降雨量关系以及降雨对滑坡滑面介质的应变软化和水致弱化影响,采用非线性科学的有关理论,建立了强降雨条件下向家坡浅层滑坡失稳的尖点突变模型,并利用该模型分析了向家坡滑坡强降雨条件下浅层滑坡失稳的破坏机理. |
| 关 键 词： | 浅层滑坡 稳定性 尖点突变 强降雨 失稳 机理 |
Cusp- catastrophic instability mechanism about shallow landslide under intensive rainfall |
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| ZHENG Zhong , ZHAO Yun-sheng , LIU Neng-zhu , ZHANG Wei-zhong.Cusp- catastrophic instability mechanism about shallow landslide under intensive rainfall[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2012,27(1):63-67. | |
| Authors: | ZHENG Zhong ZHAO Yun-sheng LIU Neng-zhu ZHANG Wei-zhong |
| Institution: | 1.Faculty of Engineering,China University of Geosciences,Wuhan 430023,China; 2.School of Information and Safety Engineering,Zhongnan University of Economics and Law(ZUEL),Wuhan 430074,China; 3.Yunnan Mingren Coalmine Detection Technology Limited Company,Kunming 650224,China) |
| Abstract: | The power function distribution relationship between slope-mass slide displacement and rainfall of shallow loose deposits landslide was analyzed and concluded quantitatively by means of mathematic statistics;Based on the engineering example of xiangjiapo landslide,the relationship between displacement and rainfall and was considered and the effects of rainfall to strain softening and water weakening about slip surface medium were researched,the cusp-catastrophic model of shallow landslide was established by using of nonlinear science catastrophe theory,and be used to reveal the sudden instability and failure mechanism of xiangjiapo landslide due to intensive rainfall. |
| Keywords: | shallow landslide stability cusp-catastrophe intensive rainfall instability mechanism |
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