四川色达县切都柯沟“7·8”泥石流灾害风险评价  

Risk Assessment of "July 8" Debris Flow in Qieduke Gully of Seda County in Sichuan

作　　者：苏鹏程[1] 刘希林[1] 吕学军[1] 

机构地区：[1]中国科学院成都山地灾害与环境研究所,四川成都610041

出　　处：《灾害学》2005年第1期72-75,共4页Journal of Catastrophology

基　　金：国家自然科学基金项目(40271002);四川省重点科技项目(01SG049-02)

摘　　要：2004年7月8日,四川甘孜州色达县歌乐沱乡切都柯沟暴发泥石流。由于前期断断续续一个多月的降雨,使得切都柯沟多处发生崩塌,大量松散固体物质含水量趋于饱和,致使在7月8日一场不大降雨的情况下触发了泥石流。这次泥石流灾害造成的损失虽不十分严重,但泥石流过程比较典型。我们将考察结果整理成文,并用已有的泥石流风险评价模型对其危险度、易损度和风险度作了分类评价,以期为今后的深入研究和防灾减灾实践提供基础。A debris flow occurred at the night of July 8, 2004 in Qieduke gully of Seda county of Sichuan province. An intermittent month long duration of rainfall caused numerous landslips in the basin. Unconsolidated materials were soaked and a small rainfall triggered the debris flow on July 8, 2004. The debris flow disaster is not serious, but its process is typical. As a case study, on the base of field investigation, assessment of the hazardousness, vulnerability and risk of debris flow are made by use of the available models, the results of which may be used as a basis for the future research and hazard reduction.

关 键 词：泥石流 危险度 易损度 风险度 切都柯沟 

分 类 号：P642.23[天文地球—工程地质学]