摘要
基于皖北楚店集、高炉集、江集和望町集4幅1∶5万综合地质调查成果,划定区内第四系地质结构与工程地质分层,控制茆塘期古河道的空间展布特征,融合多源数据与专家经验联合构建三维地质结构模型。综合考虑基础、工程、水文等地质条件,运用Delphi法确定了9项工程建设相关评价因子。基于AHP层次分析法、多因子综合指数评价法建立了评价指标体系与计算模型。通过三维GIS分析评价方法,综合评价区内50m以浅工程建设适宜性,分级圈定了适宜性好、较好、一般等各级区域。利用皮尔逊相关系数法对评价结果和单项因子进行关联分析,揭示了因子影响关系,提出了工程建设过程中需重点关注的因素。
Based on the 1∶50000 comprehensive geological survey in Chudianji,Gaoluji,Jiangji and Wangdingji of northern Anhui Province,this paper determines the Quaternary geological structure,the engineering geological stratification,and the spatial distribution characteristics of maotang paleo-channel.It also builds a 3D geological structure model on the basis of multi-source data and experts experience.Considering the geological conditions of foundation,engineering and hydrology,nine evaluation factors related to engineering construction are used in the Delphi method.Based on AHP and multi factor comprehensive index evaluation method,the evaluation index system and calculation model are established.3D GIS analysis and evaluation method are used to comprehensively evaluate the suitability of shallow engineering construction within 50 meters in the area,and delineated different levels of suitability.Pearson correlation coefficient method is used to analyze the correlation between the evaluation results and individual factors,revealing the influence relationship of factors in the process of engineering construction.
作者
杨波
管后春
杨潘
侯香梦
YANG Bo;GUAN Houchun;YANG Pan;HOU Xiangmeng(Geological Survey of Anhui Province,Hefei 230001,Anhui,China)
出处
《西北地质》
CSCD
北大核心
2021年第3期244-252,共9页
Northwestern Geology
基金
安徽省公益性地质项目“1∶5万楚店集、高炉集、江集和望町集覆盖区综合地质调查”(2016-g-3-32)。
关键词
第四系
三维GIS
变权赋值
古河道
工程建设
Quaternary
3D GIS
variable weight assignment
paleo-channel
engineering construction
