[1]苏鹏程,韦方强,冯汉中,等.“8.13”四川清平群发性泥石流灾害成因及其影响[J].山地学报,2011,(03):337.
　SU Pengcheng,,et al.Causes and Effects of Groupoccurring Debris Flow Disasters in Qingping Town, Mianyuan River Upstream, Sichuan[J].Mountain Research,2011,(03):337.
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“8.13”四川清平群发性泥石流灾害成因及其影响()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年03期
页码:
337
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Causes and Effects of Groupoccurring Debris Flow Disasters in Qingping Town, Mianyuan River Upstream, Sichuan
作者:
苏鹏程;韦方强;冯汉中;游勇;程尊兰;徐爱松;
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，成都 610041；
3.中国科学院研究生院，北京 100039；
4.四川省气象局，四川 成都610072
Author(s):
SU Pengcheng;  WEI Fangqian; FENG Hanzhong; YOU Yong; CHENG Zunlan; XU Aisong
1. Key Laboratory of Mountain Hazards and 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. Graduate School of Chinese Academy of Science, Beijing 100039, China;
4. Meteorological Bureau of Sichuan Province, Chengdu 610072,China
关键词:
绵远河; 泥石流; 群发性; 成因; 汶川地震
Keywords:
Mianyuan river; Wenchuan earthquake; groupoccurring debris flow; causes
分类号:
P642.23
文献标志码:
A
摘要:
汶川地震触发的大量崩塌滑坡改变了泥石流流域的物源条件,地震灾区震后泥石流活动呈现出愈加明显的高频率、群发性、大规模的特征。地处四川省绵竹市西北部的绵远河上游震后已多次暴发了泥石流。2010-08-13和08-18,在局地暴雨诱发作用下,绵远河上游的清平乡和天池乡境内的24条沟谷同时暴发了泥石流,冲出的固体物质高达1.08×107m3,其中仅清平乡附近,泥石流堆积扇规模就达到7.62×106m3,泥石流淤满河道形成了1.5 km2的堰塞体,致使14人死亡和失踪,清平乡境内大量震后重建的民房遭淤埋,泥石流多次中断九环线的重要支线——绵(竹)茂(县)公路汉旺-清平段,直接经济损失高达4.3亿元。此次...
Abstract:
Debris flow in the affected area has become more and more frequent and of bigger magnitude after the Wenchuan earthquake. The upper Mianyuan River is one of the typical areas, where a number of debris flow occurred in the last three years. In August, 2010,debris flows occurred in more than 20 gullies in the upstream of Mianyuan river, Mianzhu, Sichuan, at stimulus of regional rainstorms. The events delivered deposit of 1.08×107 m3 in volume, just near Qingping town, the deposits are 7.62×107 m3 in volume and 1.5 km2 in area, caused 14 deaths and missing, blocked the river and inundated new houses, and disrupted the Mianzhu-Maoxian highway repeatedly. In addition, they have sharply changed river morphology and will have a long influence on reconstruction and developing programs. This study explores the cause of the events based on investigation of the material supplies caused by the earthquake. Analysis shows that the rainstorm had an intensity of 37 mm/h and the cumulative rainfall reached 203.5 mm, and this was the triggering factor of the debris flows. Soil samples indicate that the flow is viscous given material supplies in the area, such extreme events are expected to be encountered frequently in the near future.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2010-10-21；改回日期(Accepted) : 2011-01-15。
基金项目（Foundation item）：国家科技支撑计划课题(2008BAK50B04)、科技部国际合作项目(2009DFR20620)及国家公益性行业(气象)专项(GYHY201006039)资助。\[Supported by the national Science and Technology Program of China(2008BAK50B04) and International collaboration program of the Ministry of Science and Technology (2009DFR20620) and also by Special funds for Meteorological Commonweal Project(GYHY201006039). \]
作者简介（Biography）：苏鹏程(1981-)，男，安徽桐城人，博士研究生，助理研究员，主要从事山地灾害风险评价与预测研究。\[Su Pengcheng(1981-),male, was born in Tongcheng, Anhui Province, Ph. D student, assistant researcher, majoring in mountain hazards risk assessment and prediction.\] E-mail: supengcheng@imde.ac.cn
更新日期/Last Update: 1900-01-01