摘要
汶川地震后,震区进入地质灾害高发期,特别是雨季,其中包括泥石流灾害。2010年8月13日,都江堰市龙池地区暴发了特大规模的群发性泥石流灾害,部分泥石流堵塞龙溪河,冲毁公路,龙溪河整体抬升。为了研究龙池地区震后泥石流堵江特征,选取龙溪河流域内堆积扇完整的36条泥石流沟为研究对象,通过泥石流野外调查和Spss统计,分析该区泥石流堵江类型,以及泥石流物源特征、泥石流冲出距离、泥石流堆积扇顶至主河的距离与泥石流堵江的关系。在此基础上,建立适合该区的泥石流堵江模型,为震区泥石流灾害防治和灾害治理提供一定参考。
After Wenchuan earthquake, the geological hazards in the earthquake area entered into the period of high- incidence, including the disaster of debris flow, especially in the rainy season. On August 13, 2010, large - scale clusters debris flow was broke out in the Longchi town of Dujiangyan city, roads was washed out and riverbed of Longxi was raised. In order to study the damming characteristics of the debris flow in the earthquake area, therefore, 36 gullies which the accumulation fans of debris flow completely chose as the object to study, through the field investigation and Spss statistics in the study area. Purpose to study the damming types, and analyze the blocking -river relationship, by studying characteristics of the drainage characteristics, materials eharac- teristics, rushed out distance, distance from the top of fan to the main river. On this basis, the damming of debris flow was established, providing certain reference prevention and control for d statistic model of ebris flow disaster in the study area.
出处
《灾害学》
CSCD
2017年第2期64-71,共8页
Journal of Catastrophology
基金
四川省国土资源厅科学研究计划课题(KJ-2016-11)
四川省地质矿产勘查开发局四〇五地质队专项资金
关键词
“8·13”
泥石流
堆积特征
堵江特征
龙池地区
四川都江堰
＂8 · 13＂ debris flow
accumulation characteristics
damming characteristics
Longchi town
Dujiangyan City of Sichuan
