Quantitative Susceptibility Assessment of Breach of Moraine-Dammed Lakes

被引：0
|
作者：
Yu B. [1 ]
He Y. [2 ]
Liu Y. [3 ]
机构：
[1] State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu
[2] Sichuan Communication Surveying & Design Institute Co., Ltd., Chengdu
[3] Survey and Design Institute of Xiangtan City, Xiangtan
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2022年 / 47卷 / 06期
关键词：
breach; geotechnical engineering; hazard assessment; moraine-dammed lake; quantitative study;
D O I：
10.3799/dqkx.2021.161
中图分类号：
学科分类号：
摘要：
Glacial lake outburst floods (GLOFs) have caused tens of millions of dollars of damage to infrastructure and have killed thousands of people worldwide. Based on the formation mechanism of GLOF of moraine-dammed lakes without ice core, 21 GLOFs were selected for the analysis of triggering factors in the Himalayan region. A statistical method was used via the Variable-Controlling Approach (VCA). Six dimensionless impact factors can be used to reasonably assess the GLOFs susceptibility in the Himalayan mountains, southwestern part of Canadian Columbia and northwestern part of the United States, but the threshold values in the Himalayan mountains are larger than those in southwestern part of Canadian Columbia. The dangerous glacier slope factor, the dangerous glacier temperature factor, the glacier aspect factor, the dangerous glacier volume and lake volume factor, the dangerous glacier and lake kinetic factor, and the downstream slope of the moraine-dam factor are major factors for the breaching of moraine-dammed lake and GLOF. The assessment model with these factors may thus be used to assess the hazard of GLOFs occurrence in other areas. © 2022 China University of Geosciences. All rights reserved.
引用
收藏
页码：1999 / 2014
页数：15
相关论文
共 33 条
  • [1] Allen S.K., Zhang G.Q., Wang W.C., Et al., Potentially Dangerous Glacial Lakes across the Tibetan Plateau Revealed Using a Large-Scale Automated Assessment Approach, Chinese Science Bulletin, 64, 7, pp. 435-445, (2019)
  • [2] Chai B., Tao Y.Y., Du J., Et al., Hazard Assessment of Debris Flow Triggered by Outburst of Jialong Glacial Lake in Nyalam County, Tibet, Earth Science, 45, 12, pp. 4630-4639, (2020)
  • [3] Chen X. Q., Cui P., Yang Z., Et al., Debris Flows of Chongdui Gully in Nyalam County, 2002: Cause and Control, Journal of Glaciology and Geocryology, 28, 5, pp. 776-781, (2006)
  • [4] Cheng Z. L., Zhu P. Y., Gong Y. W., Typical Debris Flow Triggered by Ice-Lake Break, Journal of Mountain Science, 21, 6, pp. 716-720, (2003)
  • [5] Clague J.J., Evans S.G., Formation and Failure of Natural Dams in the Canadian Cordillera, Bulletin of the Geological Survey of Canada, 464, (1994)
  • [6] Ding Y.J., Liu J.S., Glacier Lake Outburst Flood Disasters in China, Annals of Glaciology, 16, pp. 180-184, (1992)
  • [7] Emmer A., Vilimek V., Review Article: Lake and Breach Hazard Assessment for Moraine-Dammed Lakes: An Example from the Cordillera Blanca (Peru), Natural Hazards and Earth System Sciences, 13, 6, pp. 1551-1565, (2013)
  • [8] Gharamti I.E., Dempsey J.P., Polojarvi A., Et al., Fracture of Warm S2 Columnar Freshwater Ice: Size and Rate Effects, Acta Materialia, 202, pp. 22-34, (2021)
  • [9] Gurung D.R., Khanal N.R., Bajracharya S.R., Et al., Lemthang Tsho Glacial Lake Outburst Flood (GLOF) in Bhutan: Cause and Impact, Geoenvironmental Disasters, 4, (2017)
  • [10] Huggel C., Haeberli W., Kaab A., Et al., An Assessment Procedure for Glacial Hazards in the Swiss Alps, Canadian Geotechnical Journal, 41, 6, pp. 1068-1083, (2004)
1234