摘要
本文旨在研究山区城镇高边坡引起的岩土工程风险问题。基于高边坡灾变机理分析,建立具有普遍意义的山地城镇高边坡危险性评价指标体系;同时结合专家打分的方式采用层次分析法确定相应致灾因子的权重值;利用地理信息系统(GIS)的图层叠加原理,提出高边坡危险性区划评价的数学模型,从而构建了一种山地城镇高边坡灾变危险性区划的研究方法。实例研究表明,该方法能得到较理想的高边坡危险性区划结果。
In this paper,the geotechnical engineering risk caused by high slopes in mountainous town is studied.The universal evaluation index system was established for the mountain town with the danger of high slope based on analysis of disaster mechanism of high slope.At the same time,the weight of disasters factor in hazard analysis is determined by the analytic hierarchy method in combination with experts grade level;the corresponding mathematical models are made for evaluation of danger regionalization of high slope in accordance with the GIS layer superposition principle to make an approach to the regionalization of the high slopes with catastrophic risk in mountain towns.Practice shows that this approach can give a rather ideal result
出处
《地下空间与工程学报》
CSCD
北大核心
2011年第3期609-613,共5页
Chinese Journal of Underground Space and Engineering
基金
中国博士后科学基金(20060390682)
国家科技重大专项-水专项(2008ZX07315-001-1)
关键词
高边坡
评价指标
层次分析
图层叠加
GIS
危险区划
high slope
evaluation index
gradation analysis
layer superposition
GIS
dangerous area zoning
