作　　者： ; ; ;

机构地区： 成都理工大学环境与土木工程学院地质灾害防治与地质环境保护国家重点实验室

出　　处： 《中国地质灾害与防治学报》 2014年第1期119-124,共6页

摘　　要： 三维激光扫描技术是继GPS之后的一门高新测绘技术。本文以重庆市某采煤沉陷区内地表变形明显、沉陷趋势显著的地表为研究对象,采用三维激光扫描技术对其进行地表沉降变形监测研究。通过对研究区2011年3月、2012年5月两个时期段三维激光扫描数据的采集,以及对两期监测数据处理和对比分析,获取了监测区点变形量值、剖面线变形趋势、地表整体变形等监测成果。通过对监测结果分析得出:(1)监测区呈整体变形趋势,地面沉降为不均匀沉降;(2)获得的沉降变形结果是相对变形位移,最大沉降量15.7mm,最小沉降量2.8mm;(3)应用三维激光扫描技术进行地面沉陷矿区地表变形监测,能够获取点、线、面变形监测结果,与单点变形监测相比,弥补了其缺乏线性变形及整体变形特征的不足;(4)该技术应用于地面沉陷矿区的地表变形监测具有一定可行性和应用价值。 3D laser scanning technology is a new survey technique after GPS technology. As a new research content, this paper introduces selects coal mining subsidence area that has obvious surface deformation and significant subsidence trend in Chongqing, using 3D laser scanning technology to monitor the ground subsidence deformation. After gathering, processing and analyzing 3d laser data from March 2011 and May 2012 two periods the segment in the study area, preliminary monitoring results, such as the point settlement deformation, surface profile deformation, ground object whole deformation and so on in monitoring are acquired. Through the analysis of monitoring results obtained： （1） The monitoring area is in whole deformation trend, and ground subsidence is uneven settlement; （2） The settlement and deformation result is relative deformation, the maximum settlement is 15.7 while the minimum is 2.8mm; （3） Compared with the traditional data gathered only by single point, the monitoring data of point, line and surface deformation in mining area acquired by 3D laser scanning technology ease the shortage that lack of linear deformation and overall deformation. （4） In the ground subsidence of mining area,this method has some feasibility and practical application value in monitoring surface deformation.

关 键 词： 三维激光扫描 矿区地面沉降 变形监测 整体变形

领　　域： [天文地球] [天文地球]