基于GIS的贵州省丹寨县斜坡结构自动化制图方法分析  

GIS-based analysis of automated map making of slope structures in Danzhai County,Guizhou Province

作　　者：胡屿 刘勇 侯江勇[2] HU Yu;LIU Yong;HOU Jiang-yong(Geo-environment Monitoring Institute of Guizhou Province,Guiyang,Guizhou 550081,China;No.117 Unit,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Guiyang,Guizhou 550018,China)

机构地区：[1]贵州省地质环境监测院,贵州贵阳550081 [2]贵州省地质矿产勘查开发局117地质大队,贵州贵阳550018

出　　处：《安徽地质》2022年第2期182-187,共6页Geology of Anhui

基　　金：中央资金“中央自然灾害防治体系建设项目”(编号:Z195110010003)资助。

摘　　要：本文基于贵州省丹寨县开展的地质灾害详细调查与风险评价数据,选取地形坡度、坡向、岩层倾向、倾角、地质构造等斜坡结构控制因素,将斜坡结构划分为顺向飘倾坡、顺向层面坡、顺向伏倾坡、顺斜坡、横向坡、逆斜坡、逆向坡、近水平层状坡等8类。基于GIS空间功能模块,将复杂的制图任务细分为有序的流程步骤,构建斜坡结构模型,实现斜坡结构自动化制图。分析结果显示,研究区可划分为6个斜坡类型。通过可靠性检验,其结果可以为斜坡结构自动化制图工作提供参考。Based on the detailed investigation and risk assessment data on geo-hazards in Danzhai County,Guizhou Province,by selecting the control factors of a slope structure such as the gradient and aspect of a terrain,the dip and dip angle of a stratum,and the geological structure,divides slope structures into 8 categories such as dip slope,anti-dip slope,transverse slope,etc.,which are defined by the relationship between the dip of the stratum and the aspect of the slope,and the relationship between the dip angle of the stratum and the gradient of the slope.Based on GIS spatial function modules,the complex map-making task is subdivided into orderly process steps,and the slope structure model is constructed,thus realizing automated map making of the slope structure.The analytical results show that the study area can be divided into six categories of slopes,and through reliability test,the results can provide reference for automated map making of slope structures.

关 键 词：GIS 斜坡结构 地理信息 地质灾害 丹寨县 

分 类 号：P217[天文地球—测绘科学与技术]