[1]胡凯衡,张晓鹏,罗 鸿,等.丹巴县梅龙沟“6.17”泥石流灾害链调查[J].山地学报,2020,(6):945-951.[doi:10.16089/j.cnki.1008-2786.000570]
 HU Kaiheng*,ZHANG Xiaopeng,LUO Hong,et al.Investigation of the “6.17” Debris Flow Chain at the Meilong Catchment of Danba County, China[J].Mountain Research,2020,(6):945-951.[doi:10.16089/j.cnki.1008-2786.000570]
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丹巴县梅龙沟“6.17”泥石流灾害链调查
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2020年第6期
页码:
945-951
栏目:
研究简报
出版日期:
2021-05-01

文章信息/Info

Title:
Investigation of the “6.17” Debris Flow Chain at the Meilong Catchment of Danba County, China
文章编号:
1008-2786-(2020)6-945-07
作者:
胡凯衡12张晓鹏123罗 鸿4刘斌涛1 陈华勇12
1.中国科学院山地灾害与地表过程重点实验室,成都 610041; 2.中国科学院、水利部成都山地灾害与环境研究所,成都 610041; 3.中国科学院大学,北京 100049; 4.四川省国土空间生态修复与地质灾害防治研究院,成都 610081
Author(s):
HU Kaiheng12* ZHANG Xiaopeng123 LUO Hong4 LIU Bintao12 CHEN Huayong12
1. Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences, Chengdu 610041, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences & Ministry of Water Conservancy, Chengdu 610041, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China; 4. Sichuan Institute of Land and Space Ecological Restoration and Geological Hazard Prevention, Chengdu 610081, China.
关键词:
泥石流 灾害链 堰塞湖 梅龙沟
分类号:
P642.23
DOI:
10.16089/j.cnki.1008-2786.000570
文献标志码:
A
摘要:
2020年6月17日,四川省甘孜州丹巴县半扇门乡梅龙沟暴发大规模泥石流灾害,形成暴雨-泥石流-滑坡-堰塞湖-洪涝灾害链。在前期短历时强降雨激发下,梅龙沟沟道径流沿途铲刮沟道松散堆积物,泥石流冲出量约2.4×105 m3,进入主河约1.3×105 m3,形成堰塞坝; 自然溃流后的泥石流坝残体挤压小金川河,迫使河水冲刷掏蚀对岸阿娘寨古滑坡坡脚,引发红梁木包包和烂水湾两处次级滑坡。古滑坡因之局部失稳复活,约6.6×106 m3坡体变形剧烈,坡体整体下挫,表面拉裂缝发育,强变形区边缘裂隙已经贯通,整体处于不稳定状态。分析表明,丹巴县梅龙沟灾害具有典型的灾害链生效应,严重危及上下游。现场监测表明,阿娘寨古滑坡整体滑动可能性大,如失稳后可能形成大规模堰塞湖,危险性极高,应提前防护应对。

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备注/Memo

备注/Memo:
收稿日期(Received date):2020-07-02; 改回日期(Accepted date): 2020-07-15
基金项目(Foundation item):中国国家铁路集团有限公司科技研究开发计划课题(K2019G006); 国家自然科学基金项目(41790434,91747207)。[Project of Science and Technology Research and Development Program of China National Railway Group(K2019G006); National Natural Science Foundation of China(41790434, 91747207)]
作者简介(Biography):胡凯衡(1975-),男,博士,研究员,主要研究方向:泥石流减灾理论与技术。[HU Kaiheng(1975-), male, professor, research on debris flow mechanism and mitigation] E-mail:khhu@imde.ac.cn
更新日期/Last Update: 2020-11-30