摘要
在露天采坑深凹开采过程中,边坡形成结构破碎、坡度陡峭的高危临空面,极易促生崩滑地质灾害,深入研究快速、有效的监测技术,对有效防控边坡工程灾害和安全开采监管具有重要意义。研究采用固定翼无人机航测技术获取大型露天采坑三维点云数据,经点云去噪、剔除植被等预处理,生成露天采坑DEM数据,分析采坑的开采范围。根据DEM数据,提取矿山边坡坡度数据,开展边坡风险性分析。并利用露天采坑多期DEM进行差值,获取采坑相关变化量。研究结果表明:无人机航测技术可以快速、有效获取大型露天采坑的三维实景模型,能够为政府和企业开采监管提供可视化数据支撑;大型露天采坑的DEM数据,经地形分析提取坡度数据,可以有效发现边坡的崩滑现象,进行有效的监管。
In deep mining of open-pit mine,broken and steep free face forms on the slope,which may cause geological disasters of collapse and slide. It is of great significance to develop a fast and effective monitoring technology for the mining safety supervision and prevention and control of slope engineering disasters. So,fixed-wing UAV aerial survey method was used to acquire three-dimensional point cloud data of large open pit mines,and DEM data was generated by point cloud denoising and vegetation removal. According to DEM data,the slope data of mine slope is extracted and the risk analysis of slope is carried out. The multi-period DEM difference was applied to obtain the changes in the open pit. The results show that UAV aerial survey can quickly and effectively obtain the 3D real scene model of large open pit,and provide visual data support for government and enterprises. With the slope data extracted by terrain analysis from the large-scale open pit mining DEM data,the slope slide can be timely and precisely identified,so corresponding measures can be taken in time.
作者
邱亚辉
申红梅
范冬丽
王世博
郎博
QIU Ya-hui;SHEN Hong-mei;FAN Dong-li;WANG Shi-bo;LANG Bo(Beijing Ploytechnic College,Beijing 100042,China;Sichuan Academy of Safety Science and Technology,Chengdu 610045,China;Coal Mine Gas Remate Monitoring center of Dahou,Da Zhou 635000,China)
出处
《煤炭工程》
北大核心
2021年第4期84-87,共4页
Coal Engineering
基金
北京市科研项目(KM202010853003)。
