050811 Large-scale Debris Flow in Hailuo Valley and Prevement Countermeasures

CHEN Xiaoqing; CUI Peng; CHEN Binru; QI Yunlong

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050811 Large-scale Debris Flow in Hailuo Valley and Prevement Countermeasures

- 050811 Large-scale Debris Flow in Hailuo Valley and Prevement Countermeasures
- Bulletin of Soiland Water Conservation Vol. 25, Issue 3, Pages: 122-126(2006)
- 作者机构：
  
  中国科学院成都山地灾害与环境研究所,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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CHEN Xiaoqing, CUI Peng, CHEN Binru, et al. 050811 Large-scale Debris Flow in Hailuo Valley and Prevement Countermeasures[J]. Bulletin of Soiland Water Conservation, 2006, 25(3): 122-126.
DOI：

CHEN Xiaoqing, CUI Peng, CHEN Binru, et al. 050811 Large-scale Debris Flow in Hailuo Valley and Prevement Countermeasures[J]. Bulletin of Soiland Water Conservation, 2006, 25(3): 122-126. DOI：

摘要

四川省泸定县海螺沟2005年8月11日发生了超过100a一遇的特大泥石流灾害。这次灾害点多、面广

几乎同时暴发。通过对这次灾害的实地考察

分析了灾害发生的地质、气象、地貌等方面原因。灾害主要原因是特大暴雨激发所致。结合该流域历史的泥石流活动情况

进行了简要的发展趋势分析。针对当地的社会条件和自然条件

提出了防灾、减灾对策

具体分为应急处理措施和后期防治建议。

Abstract

On August 11

2005

an extremely wide debris flow disaster with return period of more than 100 years took place in the Hailuo Valley

Luding County

the east of the Gongga Mountain.After investigation of the disaster

the causes of the disaster occurrence

including geology

relief

climate and human activities

were analyzed.The main cause to the occurrence was the heavy rainstorm.The amount of daily rainfall was over 88 mm on August 12.The trend of debris flow activities was analyzed by referring to historical debris flow.Controlling countermeasures such as emergency measures and upper mitigation measures are presented through comparing the 050811 hazard with other hazards like the debris flow in Xinping County.

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