摘要
随着无人机航测三维建模技术的不断发展与应用,本文就无人机航测三维建模技术在地质灾害监测工作中的应用进行分析和阐述,在某一处地质灾害区的地质灾害监测中,分析了无人机航测三维建模技术的原理、应用等,无人机航测可快速获取高分辨率的地形影像,其飞行高度一般控制在50~200m,其飞行速度一般为2~5m/s,可获取范围数平方公里的航测影像。获取的三维数据经处理后可建立高精度的三维模型,其水平精度为±0.1~±0.5m,垂直精度为±0.05~±0.2m。在地质灾害的监测工作中,利用建立的三维模型就可以直观地识别出相应的地质灾害隐患点,例如滑坡体的边界、裂缝的长和宽等。通过对同一期三维模型和不同时期的三维模型对比,可以及时得到相应的地质灾害体变形,如位移速率、沉降量等。通过对相关技术和应用的分析,给出相关地质灾害监测新的思路和方法,提高相应的地质灾害监测的准确率与及时性。
With the continuous development and application of UAV aerial survey 3D modeling technology,this paper analyzes and discusses the application of this technology in geological disaster monitoring.In a specific geological disaster area,the principles and applications of UAV aerial survey 3D modeling technology are analyzed.UAV aerial surveys can quickly obtain high-resolution topographic images,typically at altitudes between 50 to 200 meters and speeds ranging from 2 to 5m/s,capable of capturing aerial images over several square kilometers.After processing,the obtained 3D data can be used to create high-precision 3D models with horizontal accuracy of±0.1~±0.5m and vertical accuracy of±0.05~±0.2m.In geological disaster monitoring,these 3D models can intuitively identify potential hazard points,such as the boundaries of landslides and the lengths and widths of cracks.By comparing the same period's 3D model with those from different periods,the deformation of geological disaster bodies can be promptly determined,such as displacement rates and settlement amounts.Through the analysis of related technologies and applications,this paper proposes new ideas and methods for geological disaster monitoring,enhancing the accuracy and timeliness of such monitoring.
作者
曹承成
CAO Cheng-cheng(Guizhou Jianhai Geological Environment Engineering Co.,Ltd.,Duyun 558000,China)
出处
《价值工程》
2025年第24期137-139,共3页
Value Engineering
关键词
无人机航测
三维建模
地质灾害监测
UAV aerial survey
3D modeling
geological disaster monitoring
