Terrestrial3D Laser Scanning Technology Application In Mining Subsidence

3D laser scanning technology as a new laser measurement technology. It utilizes a lasermonochromatic, coherent, directional, high brightness, and can obtain the advantages of thecharacteristics of the three-dimensional distance information of the spatial coordinates of thescanned object, it is widely used in various fields. This research is its theory and methods in thefield of mining subsidence. Since mine irrational exploitation, resulting rock mining areasaround the internal stress fracture, stress redistribution equilibrium process, causing the surface toproduce a continuous movement, deformation and damage affecting the production andimprovement of life of people.3D laser scanning technology can solve the problems of theconventional measuring instruments deficiencies, accurate and fast solution to mining subsidenceproblems.This dissertertion first describes the background and significance of the three-dimensionallaser scanning technology and its use of the current development situation. Then introduced inmining subsidence using the total station monitoring methods include measuring principle, GPS,InSAR other methods, also introduced a three-dimensional laser scanner basic working principleand characteristics and composition of the entire system control, power, scanning three importantparts. In the post-processing analysis of data processing applications Cyclone software. The studyused a Leica HDS C10laser scanner surface objects by observing21306Mine face, developappropriate scan line in accordance with the work plan and topographic features Xiangshan mine,as far as possible to get the number of stations with fewer scans deformation characteristics of thesurface area. The region of the point cloud data using the Cyclone software, according to thedata processing carried out point cloud stitching, de-noising, streamline operations. Finally get tothe three-dimensional point cloud space required information, and in order to investigate thethree-dimensional laser scanning technology in mining subsidence feasibility and universality, while using a high-precision total stations were observed and the feature point cloud select thetarget feature obvious point analysis, the two phases of deformation monitoring data points. Bycomparing the two phases of data analysis, and its corresponding sink curve. According to therelevant theory and experiments, the feasibility of3D laser scanning technology in miningsubsidence areas.