[1]胡凯衡,崔鹏,马超,等.宁南县矮子沟“6.28”特大灾害性泥石流成因和特征[J].山地学报,2012,(06):696.
　HU Kaiheng,CUI Peng,MA Chao,et al.Causes and Characteristics of 28 June Disastrous Debris Flow Event in Ningnan County of Sichuan，China[J].Mountain Research,2012,(06):696.
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宁南县矮子沟“6.28”特大灾害性泥石流成因和特征()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年06期
页码:
696
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Causes and Characteristics of 28 June Disastrous Debris Flow Event in Ningnan County of Sichuan，China
作者:
胡凯衡;崔鹏;马超;周公旦;田密;杨东旭;刘维明;
1.中国科学院山地灾害与地表过程重点实验室，四川 成都610041；
2. 中国科学院水利部成都山地灾害与环境研究所，四川 成都610041；
3. 中国科学院大学，北京100049
Author(s):
HU Kaiheng; CUI Peng; MA Chao; ZHOU Gongdan; TIAN Mi; YANG Dongxu; LIU Weiming
1. Key Laboratory of Mountain Hazards and Earth Surface Processes，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
关键词:
泥石流; 矮子沟; 暴雨灾害
Keywords:
debris flow; Aizi ravine; rainstorm
分类号:
P642. 23
文献标志码:
A
摘要:
2012-06-28T5:00,四川省凉山彝族自治州宁南县矮子沟突降强暴雨,引发了特大灾害性泥石流,造成严重的人员伤亡和财产损失。此次泥石流是在长时间的前期降雨和短历时的强降雨共同作用下,从上游支沟坡面和两侧冲沟短时间内形成的,具有发展和运动历时短,规模中等而峰值流量大,泥石流和洪水交替作用等特点。严重的沟道堵塞和中下游松散物质的补充,使得泥石流的峰值流量是清水流量的3～4倍。
Abstract:
A disastrous debrisflow event occurred at Aizi Ravine in Ningnan County，Sichuan Province between 5：00 and 6：00 am on June 28，2012. As of July 4，7 people were killed and 33 missing. The debris flows were triggered by a local intensive rainfall of 38mm/h after one month antecedent rainfall. The formation area was the subcatchment belonging to the upstream right tributary. Massive material from hill slopes and small gullies was concentrated in a short duration of approximate 30 minutes. The peak discharge was amplified by 3 to 4 times because meandering channels and narrow passes of the main stream accumulated the flows，and a great deal of debris from colluviums，diluvium，and sediment deposit in the downstream channel were eroded. The event is characterized with short duration of formation and propagation，moderate scale but high peak discharge，and interoccurrence of flood and debris flow. A lesson from the disaster is lowfrequency debrisflow ravines such as Aizi should be paid special attention in the hydropower engineering area.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2012-07-24；改回日期(Accepted) : 2012-08-12。
基金项目（Foundation item）：中国科学院重点部署项目（KZZD-EW-05-01）、国家重点基础研究发展计划资助（2011CB409902）和中国科学院成都山地灾害与环境研究所青年百人团队项目。\[This research is supported by the Key Research Program of the Chinese Academy of Sciences (Grant No. KZZD-EW-05-01), the National Program on Key Basic Research Project (973 Program) (Grant No. 2011CB409902)，and the Hundred Young Talents Program of Institute of Mountain Hazards and Environment.\]
作者简介（Biography）：胡凯衡(1975-)，男，江西瑞金人，研究员，硕士生导师，主要从事泥石流研究。 \[Hu Kaiheng (1975-)，male，born in Ruijin County of Jiangxi Province, major in debris flows.\] E-mail: khhu@imde.ac.cn
更新日期/Last Update: 1900-01-01