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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 the Wenchuan earthquake, the earthquake zone entered a period of high geological disasters, especially the rainy season, including the debris flow disaster. On August 13, 2010, a large-scale massive mudslide disaster broke out in Longchi area in Dujiangyan City. Some of the debris flow blocked the Longxi River and destroyed the highway. As a result, the whole Longxi River was raised. In order to study the characteristics of debris flow after the earthquake in Longchi area, we selected 36 complete debris flow dikes in the Longxi River basin as the research object. Based on the field investigation and Spss statistics of debris flow, the types of debris flow in the area, , Debris flow out of the distance, debris flow fan deposition to the main river distance and debris flow blocking the relationship between the river. Based on this, a model of debris flow blockage for the debris flow in this area is established, which will provide reference for the prevention and control of debris flow hazards and disaster control in the earthquake area.