摘要
矿山的长期无节制、无规划开采,对地貌和地形产生较大破坏,易诱发多种地质灾害。由于进入矿山内部或地下隧道进行勘测的作业条件较为恶劣,存在通风、照明、通讯等方面的困难,且空间复杂,方向不清晰,存在危险因素,勘测作业难度较大。为此,本文提出基于无人机倾斜摄影的矿山地质灾害勘测方法,首先选择矿山勘测区域,设计无人机摄影测量方案,航拍路线;然后设计无人机倾斜摄影流程,并对获取的正射影像进行图像坐标信息解析;根据解析结果,分别按照左右山体、边坡以及自然边坡的顺序,分析勘测图像,识别勘测矿山的地质灾害类型。结果表明,采用无人机倾斜摄影的勘测,误差低于0.1 m。应用提出的方法可勘测出,矿山植被覆盖率较低,岩体出现裸露样貌,且表面存在碎石,说明该废弃矿山具有构成滑坡和泥石流以及崩塌的地质灾害条件。
The long-term uncontrolled and unplanned mining of mines has caused significant damage to the landform and topography,and is prone to induce various geological disasters.Due to the poor working conditions for entering the interior of the mine or underground tunnels for survey,there are difficulties in ventilation,lighting,communication,and other aspects.Moreover,the space is complex,the direction is not clear,and there are risk factors,making the survey operation difficult.Therefore,a method of mine geological hazard survey based on unmauned aerial vehicle(UAV)tilt photography is proposed.Select the mine survey area,design a UAV photogrammetric scheme,and aerial photography route.Design the UAV tilt photography process,and analyze the image coordinate information of the obtained orthophoto image.Based on the analysis results,the survey images are analyzed in the order of left and right mountains,slopes,and natural slopes to identify the types of geological hazards in the survey mine.The results show that the survey error using UAV tilt photography is less than 0.1 m.Using the proposed method,it can be detected that the mine has low vegetation coverage,exposed rock mass,and gravel on the surface,indicating that the abandoned mine has geological disaster conditions that constitute landslides,debris flows,and collapses.
作者
葛燕平
智勇健
Ge Yanping;Zhi Yongjian(Shijiazhuang Natural Resources and Planning Information Centre,Shijiazhuang 050011,China)
出处
《科技通报》
2024年第4期109-113,共5页
Bulletin of Science and Technology
关键词
无人机
矿山地质灾害
倾斜摄影
勘测方法
三维建模
unmanned aerial vehicle(UAV)
mine geological disaster
oblique photography
survey method
3D modeling
