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应用GIS专业软件ArcView中的空间分析和三维分析模块,以南京地铁某车站施工为例,采用水准测量法和Peck公式法分别进行地表沉降离散数据采集,然后选取反距离权重法(IDW)进行空间插值拟合出地面变形的DEM趋势面,并进行综合三维分析,以更加直观、生动的方式为项目决策者和施工人员提供技术支持和决策依据。
Using the spatial analysis and 3D analysis module of GIS software ArcView, taking the construction of a station in Nanjing Metro as an example, the data of ground surface subsidence are collected by level measurement and Peck formula respectively, then the inverse distance weighting method (IDW) Interpolation fitting the surface deformation of the DEM trend surface and a comprehensive three-dimensional analysis, in a more intuitive and vivid way for project decision makers and construction workers to provide technical support and decision-making basis.