Comparative Analysis on Gold Goaf Survey Based on Three—dimensional Laser Scanning Technology
In this paper,by using three—dimensional laser scanning technology,using handheld ZEB—HO-RIZON portable 3D laser scanner and Trimble TX8 station—mounted 3D laser scanner separately,meas-urement of underground goaf have been carried out.Combining with GeoSLAM Hub,RealWorks,Geomagic Studio and other relevant softwares,a series of processing have been conducted,such as point cloud denoising,thinning and 3D modeling.It can quickly and effectively calculate the volume and metal content of the goaf.Through data comparison and accuracy evaluation between the handheld ZEB—HORI-ZON portable 3D laser scanner and the Temble TX8 station 3D laser scanner,it is found that the handheld ZEB—HORIZON portable 3D laser scanner is more suitable for remote and complex mine measurement.After multi—station measurement,the handheld ZEB—HORIZON portable 3D laser scanner data collec-tion is more efficient and the measurement accuracy is more accurate.It can provide powerful data support for relevant departments,such as land and public security department.