摘要
通过对天磨沟泥石流进行实地调查,得到了该泥石流沟的地形地貌、物源区、流通区、堆积区等特征。运用模糊综合评判法对天磨沟泥石流进行综合评判,得到该泥石流沟易发概率为69%,中等易发概率为12%,轻微易发概率为19%。运用泥石流风险评价模型,对天磨沟泥石流进行风险评价分析,得到该泥石流沟的危险度为0.804,属于极高危险泥石流沟;易损度为0.65,属于高度易损泥石流沟;风险度为0.52,属于高度风险的泥石流沟。
A field survey was carried out to determine the landform, origin area, transition area and accumulative area of the Tianmo-Gully debris flow. This article employed the fuzzy comprehensive evaluation method to evaluate the vulnerability of debris flow. And came exactly to that conclusion, there is a 69% probability belongs to debris flow prone, a 12% probability belongs to secondary debris flow prone, a 19% probability belong to slight debris flow prone. The debris flow risks were assessed by using the model. It is high dangerous with the danger degree of the debris flow gully is 0. 804, it is high-vulnerability with the vulnerability degree is 0.65, and it is high-risk with the risk degree is 0.52.
出处
《地质灾害与环境保护》
2017年第4期7-12,共6页
Journal of Geological Hazards and Environment Preservation
基金
藏东南重要城镇和交通干线地质灾害调查(DD20160279)
关键词
天磨沟
泥石流
模糊综合评判
风险评价
Tianmo-Gully
debris flow
fuzzy comprehensive evaluation
risk assessment
