基于三维模型技术的城市地铁施工期地面沉降分析  

Analysis of ground subsidence in subway construction based on 3D model technology

作　　者：周立国[1] 孙树林[2] 张淦钰[2] 郑青海[2] 唐俊[2] 

机构地区：[1]安徽省电力设计院,合肥230601 [2]河海大学地球科学与工程学院,南京210098

出　　处：《工程勘察》2011年第10期69-72,共4页Geotechnical Investigation & Surveying

摘　　要：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。Taking construction surveying of a Nanjing subway station as an example,the spatial analysis and three-dimensional analysis modules in professional GIS software,ArcView,are used for collection of ground subsidence data by leveling and Peck formula respectively,and the IDW method is used to interpolate and fit of the ground deformation.A comprehensive three-dimensional analysis is conducted to provide technical supports and decision-making evidences for project managers and construction workers in a more intuitive and vivid way.

关 键 词：地面沉降 GIS 三维分析 地铁 

分 类 号：P208[天文地球—地图制图学与地理信息工程]