摘要
国道212线甘肃境内段滑坡泥石流强烈活动影响到线路畅通与公路改建升级。本文选取该沿线区滑坡泥石流成因性因子数据与特征性检验因子数据,基于GIS与MATLAB处理、分析数据,建立成因因子与滑坡泥石流活动强度之间的模糊隶属关系,计算得到评价区滑坡泥石流活动强度等级并据此区划分出3个大区、10个亚区。结果表明,本研究方法高效客观、精度高,对公路选线、公路防灾工程方案制定具有实用参考价值。
The 212 national highway in Gansu suffers frequently from intense landslide-debris, which affects the function and even the upgrading of the freeway. In the study, a fuzzy synthetical assessment approach based on GIS and Matlab was used to establish the fuzzy membership relationship between the data of causative factors and the sampling data on the active strength of the landslide-debris in the study area. The entire region was divided into 3 first-level areas and 10 second-level areas according to the calculation results and the principles of regionalization. The results show that this approach is objective, effective, accurate and very helpful in selecting the site of the freeway and in hazard prevention.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第5期87-92,共6页
Journal of Lanzhou University(Natural Sciences)
基金
甘肃省科技攻关资助项目(GS982-A45-095)
关键词
滑坡泥石流活动强度
模糊综合评价
区划
地理信息系统
active strength of landslide-debris flow
fuzzy synthetical assessment
regionalization
GIS
