三维激光扫描技术在矿山巷道断面测量中的应用

Application of 3D laser scanning technology in cross-sectional measurement of mining tunnels

针对传统测量方法在井下矿山巷道断面和巷道中线测量中存在的过程复杂、效率低下等问题,采用地面三维激光扫描(TLS)技术,使用标靶联系测量法和导线测量法进行外业数据采集。以设计线路为基准提取矿山巷道的连续断面,采用最小二乘法对提取的断面进行拟合,获取断面的中心坐标,与矿山巷道设计中心坐标进行比较,获取矿山巷道的断面尺寸。以贵州某矿井下巷道为例进行试验,结果表明三维激光扫描技术方法较传统监测方法能够快速实现巷道断面测量,有效提升工作效率。

In response to the complex process and low efficiency of traditional measurement methods in measuring the cross-section and centerline of underground mining tunnels,this paper adopts ground Three-dimensional Laser Scanning(TLS)technology,using target contact measurement and traverse measurement methods for field data collection.Extract the continuous section of the mining roadway based on the design route,use the least squares method to fit the extracted section,obtain the center coordinate of the section,and compare it with the design center of the mining roadway to obtain the cross-sectional size of the mining roadway.Taking the underground tunnel of a certain mine in Guizhou as an example,the experimental results show that the technical method proposed in this paper can quickly achieve tunnel cross-section measurement compared to traditional monitoring methods,effectively improving work efficiency.