基于激光扫描技术的复杂工程挖填方计算  

Excavation and Embankment Volume Calculation for Complicated Engineering Based on Laser Scanning

作　　者：刘昌军[1] 叶长锋[2] 赵雨[2] 解家毕[1] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]国核电力规划设计研究院,北京100094

出　　处：《水电能源科学》2011年第12期95-97,131,共4页Water Resources and Power

基　　金：国家国际科技合作计划基金资助项目(2010DFA74520);"十一五"国家科技支撑计划基金资助项目(2008BAB42B05;2008BAB42B06)

摘　　要：以唐海幸福花园小区复杂基坑为例,介绍了利用激光扫描仪进行复杂挖填方量计算的流程与方法,提出了基于激光点云数据的非地面点的自动滤波算法、基于移动最小二乘法拟合地表的DEM数据和任意边界的挖填方计算方法等;并利用IDL语言编制了基于激光点云数据的复杂工程挖填方计算软件LIDARVIEW,计算了唐海幸福花园复杂基坑工程不同设计高程的挖填方量。结果表明,该方法简单、快速、精度较高。Taking the foundation pit of Tanghai Happiness Community for an example, processing and methodology of the excavation and embankment volume calculation in complicated engineering with laser scanner is introduced in this paper. Automatic filtering algorithm that eliminates the non-ground points from the obtained massive laser point cloud, digital elevation models （DEM） generated by moving least squares （MLS） fitting as well as method of calculating excava- tion and embankment volume with arbitrary boundary are put forward. LIDARVIEW software for excavation and em bankment volume calculation based on laser point clouds is developed through interactive data language （IDL） programming. The excavation and embankment volumes for the complicated foundation pit project in Tanghai Happiness community are calculated under different design elevations. The results show that this method is simple, fast and has high precision.

关 键 词：三维激光扫描 复杂工程 挖填方量 移动最小二乘法 DEM 

分 类 号：TV221.1[水利工程—水工结构工程] TN249[电子电信—物理电子学]