debris flow distribution and occurrence trend | |
Chen, NS; He, N | |
2012 | |
会议名称 | International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2012) |
会议日期 | 2012-8-10~12 |
会议地点 | Zhangjiajie, PEOPLES R CHINA |
关键词 | Debris Flow Wen-chuan Earthquake Disaster Prevention and Reduction Economic loss |
页码 | 3345-3350 |
通讯作者 | He, N |
英文摘要 | Debris flow disaster occurred frequently, at the same time it covered a wide area in China. Through statistics analyzing debris flow disaster data from 1914 to 1999, obtain that debris flow hazards mainly distributed in the east longitude 100-110, 25-300 north latitude and 30-35 north latitude in China. This region is mainly affected by subtropical climate and central Asia humid tropical monsoon climate, such climate have little rainfall in winter but intense rainfall in summer, due to the complex topography and different monsoon circulation, the frequency of debris flow occurrence in this area is much higher than other areas. After the earthquake in May 12, 2008, the slope material structure are destroyed which in turn provide adequate loose clastic-sediment for debris flow to initiate, several years later the loose clastic-sediment may reconsolidate again and reach new balance. Compare the frequency and scale of debris flow before and after the earthquake, know that after earthquake the frequency and scale of debris flow are much serious than the events occurred before earthquake, then gradually tend to stable. Based on these phenomena could predict the scale and trend in the future, at the same time it could provide reference for debris flow prevention and reduction, and then reduce the loss that caused by debris flow hazards. |
会议主办者 | Changsha Univ Sci & Technol; Hunan Univ; Xiangtan Univ; Nanhua Univ; Hunan Univ Sci & Technol; Hunan City Univ |
会议录 | PROGRESS IN INDUSTRIAL AND CIVIL ENGINEERING, PTS. 1-5 |
会议录出版者 | TRANS TECH PUBLICATIONS LTD |
会议录出版地 | , LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/7229] |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
推荐引用方式 GB/T 7714 | Chen, NS,He, N. debris flow distribution and occurrence trend[C]. 见:International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2012). Zhangjiajie, PEOPLES R CHINA. 2012-8-10~12. |
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