[1]陈宁生,黄 娜.普格县荞窝镇8.8泥石流灾害应急调查研究[J].山地学报,2018,(03):482-487.[doi:10.16089/j.cnki.1008-2786.000344]
　CHEN Ningsheng,HUANG Na.Emergency Investigation on Debris Flow 8.8 Disaster in Qiaowo Town, Puge County, Sichuan, China[J].Mountain Research,2018,(03):482-487.[doi:10.16089/j.cnki.1008-2786.000344]
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普格县荞窝镇8.8泥石流灾害应急调查研究()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2018年03期
页码:
482-487
栏目:
研究简报
出版日期:
2018-05-30

文章信息/Info

Title:
Emergency Investigation on Debris Flow 8.8 Disaster in Qiaowo Town, Puge County, Sichuan, China
文章编号:
1008-2786-(2018)3-482-06
作者:
陈宁生; 黄 娜
中国科学院、水利部成都山地灾害与环境研究所 中国科学院山地灾害与地表过程重点实验室,成都 610041
Author(s):
CHEN Ningsheng;  HUANG Na
Institute of Mountain Hazards and Environment, Key Lab of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu 610041, China
关键词:
普格县;  桐子林沟;  灾害性泥石流;  运动特征;  灾害成因
Keywords:
Puge County;  Tongzilin gully;  catastrophic debris flow;  dynamic characteristics;  causes of disasters
分类号:
P642.21
DOI:
10.16089/j.cnki.1008-2786.000344
文献标志码:
C
摘要:
2017年8月8日凌晨4点至4点30分,普格县荞窝镇耿底村4组和5组发生泥石流灾害,导致25人死亡,71间房屋损毁,造成1.6亿元经济损失。采用现场调查、室内分析实验、参数模拟计算等方法对灾害的特征和成因进行了分析。研究结果显示8.8普格泥石流属于低频率中等规模的稀性泥石流。泥石流是由于流域内广泛发育的“凹槽土体”在旱后叠加暴雨的影响下激发的,其成灾过程是一系列致灾因素叠加的结果。首先,灾害与乡村道路堵塞行洪道关系密切; 此外区域灾害伏旱后由局地强降雨引发,流域自然条件复杂; 隐蔽性强低频率的老泥石流沟排查识别困难; 流域上游无雨量观测站点,难以准确预警; 洪流夜间发生,逃生难度大等因素的存在进一步促使灾害发生。
Abstract:
It was to investigate the genesis of a debris flow event occurred at 4 and 5 Gudong Village, Qiaowo Town, Puge County from 4 am to 4:30 am on August 8, 2017, which caused 25 deaths, 71 houses damaged and a large economic loss of 160 million yuan.The characteristics and causes of disasters were analyzed on the basis of field investigation, laboratory test and simulation.The results showed that 8.8 Puge debris flow was a low-frequency and medium-scale debris flow.It was triggered by the extensive development of hollow in the basin under the influence of superimposed rainstorm after drought, and the disaster process was a result of a series of superimposed disaster-triggering factors.First of all, the rural roads blocked the flood channel; In addition, regional natural disasters were triggered by heavy rainfalls after summer drought, which led to complex natural conditions; There was difficulty in identifying old debris flow gully with low-frequent and latent.Some factors like time, speed, difficulty of escape and so on, all of them contributed to the initiation of the disaster.

参考文献/References:

[1] CHEN N S, YANG C L, ZHOU W, et al.The critical rainfall characteristics for torrents and debris flow in the WenChuan earthquake stricken area[J].Journal of Mountain Science, 2009,6(4): 362-372
[2] CHEN N, CHEN M, LI J, et al.Effects of human activity on erosion, sedimentation and debris flow activity - A case study of the Qionghai Lake watershed, southeastern Tibetan Plateau, China[J].Holocene, 2015, 25(6):973-988
[3] CHEN N S, LU Y, ZHOU H B, et al.Combined impacts of antecedent earthquakes and droughts on hazardous debris flows[J].Journal of Mountain Science, 2014,11(6):1507-1520
[4] 周必凡, 李德基, 罗德富等.泥石流防治指南[M].北京:科学出版社.1991 [ZHOU Bifan, LI Defu, et al.Debris flow prevention guide[M].Beijing: Science Press]
[5] 陈宁生, 崔鹏, 刘中港, 等.基于黏土颗粒含量的泥石流容重计算[J].中国科学: E 辑, 2003, 33(B12): 164-174 [CHEN Ningsheng, CUI Peng, LIU Zhonggang, et al.Calculation of debris flow capacity based on clay particle content[J].Chinese Science: E Series, 2003, 33(B12): 164-174]
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备注/Memo

备注/Memo:
收稿日期(Received date):2017-11-08; 改回日期(Acceptance date): 2018-03-27
基金项目(Foundation item):国家自然科学基金国际(地区)合作与交流项目(41661134012)。 [Project of International Cooperation and Exchange of National Natural Science Foundation of China(41661134012)]
作者简介(Biography):陈宁生(1965-),男,福建建宁,博士,研究员,博士生导师,研究方向:山地灾害与工程研究。 [CHEN Ningsheng(1965-), male, born in Jianning of Fujian province, Ph.D, professor, engaged in mountain hazards and engineering research] E-mail: chennsh@imde.ac.cn
更新日期/Last Update: 2018-05-30