• 责任者：Zhang Huihui (State Key Laboratory of Geohazards Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Ma Yu
• 刊名：Journal of Chengdu University of Technology
• 出版年：2011
• 卷期：38(1)
• 关键词：泥石流 ; debris flows ; 震灾 ; seismic hazard ; 四川 ; Sichuan Province
• 页码：p.42-48
• 图表：8 illus., 4 tables, 16 refs.
• 分类号：1800
• issnNo：ISSN1671-9727
• isbnNo：CN51-1634/N

A number of earthquake debris flows were caused by the Wenchuan earthquake. This paper discusses the characteristics and happening conditions of the typical sequential debris flows in the earthquake area. Through field observation of the Xiaogou gully basin located in Hongkou, Dujiangyan, Sichuan Province and laboratory experimental data analysis, it reaches the conclusion that first, many landslides were triggered by the Wenchuan earthquake on May 12, 2008 and many potential landslides lost their balance in the earthquake but were not triggered in the Xiaogou gully basin. Second, the landslides were mainly triggered by heavy rainfalls. The channel was blocked by landslides and formed some dams and lakes. Heavy rainfall and floods broke these dams, formed strong floods, eroded the bed of the channel, and therefore formed debris flows.