摘要
当高速路穿越地质灾害频发的山区时,对其进行地质灾害评价可以有效地提高防灾效率,降低防灾成本.在详细分析攀盐高速格里坪至渔门段地形地貌、地质背景的基础上,构建了10个地质灾害危险性评价因子,利用模糊层析分析法(FAHP)对研究区地质灾害危险性进行了综合制图与评价,并对结果进行了验证.研究表明:1)研究区地质灾害危险性程度主要以安全、轻度危险性为主,占研究区面积的56.72%.2)高危险区域占研究区面积的10.79%,主要分布在滑坡、崩塌等地质灾害密集带和高沟谷密度带.3)地质灾害危险性评价区划结果精度高,具有一定的科学性和准确性,可为高速路规划和防灾减灾提供理论依据.
When a highway passes through a mountainous area with frequent geological disasters,its geological disaster assessment can effectively improve disaster prevention efficiency and reduce disaster prevention costs. Based on the detailed analysis of the topography and geological background of the Geliping to Yumen section of Pan-Yan Expressway, 10 geological hazard assessment factors were constructed,and the risk of geological disasters in the study area was analyzed by fuzzy tomography(FAHP). Comprehensive mapping and evaluation were carried out and the results were verified. The research shows that:1)The degree of geological hazard in the study area is mainly based on safety and mild risk,accounting for 56.72% of the area of the study area. 2)The high-risk area accounts for 10.79% of the area of the study area,and is mainly distributed in geological disaster-intensive areas such as landslides and collapses and high-groove density belts. 3)Geological hazard risk assessment zoning results are highly accurate,scientific and accurate,and can provide theoretical basis for highway planning and disaster prevention and mitigation.
作者
曾帅
刘汉湖
魏雨
ZENG Shuai;LIU Hanhu;WEI Yu(School of Earth Sciences,Chengdu University of Technology,Chengdu 610051,China)
出处
《河南科学》
2019年第8期1311-1316,共6页
Henan Science
基金
四川省自然科学重点项目（18ZA0061）
关键词
模糊层次分析法
地质灾害
危险性评价
攀盐高速
fuzzy analytic hierarchy process
geological hazard
risk assessment
Pan-Yan Expressway
