基于三维激光扫描技术的矿山高位边坡变形监测方法

A Deformation Monitoring Method for High Level Slopes in Mines Based on 3D Laser Scanning Technology

当前的矿山高位边坡变形监测节点布设不合理,导致监测粗差不断增加,为此提出基于三维激光扫描技术的矿山高位边坡变形监测方法。根据实际的矿山高位边坡变形监测需求及标准,布设多目标监测节点,实现基础监测数据采集和预处理。以此为基础,结合IQR粗差变形监测矩阵,构建基于三维激光扫描的高位边坡变形监测模型,采用点云重叠校正得到变形监测结果。实验结果表明,经过6个独立单元区域的测试,对比于传统T-样条曲面拟合高位边坡变形监测小组、传统DIC高位边坡变形监测小组,本次所设计的三维激光扫描边坡变形监测小组的监测平均粗差被控制在了0.8以内,说明该种方法的监测效果好,对于高位边坡变形监测的针对性更强,误差可控,具有较高实际的应用价值。

The current layout of monitoring nodes for deformation of high level slopes in mines is unreasonable,resulting in an increasing number of monitoring errors.Therefore,a deformation monitoring method for high level slopes in mines based on 3D laser scanning technology is proposed.According to the actual requirements and standards for monitoring the deformation of high level slopes in mines,multi-objective monitoring nodes are deployed to achieve basic monitoring data collection and preprocessing.Based on this,combined with the IQR gross deformation monitoring matrix,a high level slope deformation monitoring model based on 3D laser scanning is constructed,and the deformation monitoring results are obtained using point cloud overlap correction.The experimental results show that,after testing in six independent unit areas,compared to the traditional T-spline surface fitting high-altitude slope deformation monitoring group and the traditional DIC high-altitude slope deformation monitoring group,the monitoring average gross error of the three-dimensional laser scanning slope deformation monitoring group designed in this study was controlled within 0.8,indicating that this method has good monitoring effect,stronger specificity for high-altitude slope deformation monitoring,and controllable errors.It has high practical application value.