基于无人机航空摄影技术的滑坡稳定性分析  

Landslide Stability Analysis Based on UAV Aerial Photography Technology

作　　者：王延寿 WANG Yanshou(Tianshui Institute of Geology and Mineral Resources,Gansu Bureau of Geology and Exploration of Non-Ferrous Metals,Tianshui 741020,China)

机构地区：[1]甘肃省有色金属地质勘查局天水矿产勘查院,甘肃天水741020

出　　处：《测绘与空间地理信息》2024年第2期167-169,共3页Geomatics & Spatial Information Technology

摘　　要：滑坡稳定性定量评价是滑坡研究的重要内容,是选择滑坡灾害防治方案的重要技术依据。计算模型的建立是滑坡稳定性定量分析的必要条件,而传统建模方法,首先需要借助GPS-RTK或全站仪等经人工野外实地测量获得地面线,再手动绘制剖面图,最后建立计算模型。而无人机航空摄影技术可以快速获取精准大比例尺数字正射影像图(DOM),然后通过影像处理软件便可提取地面地形数据,从而可利用CASS软件直接切取剖面图。经相互验证对比发现,无人机航空摄影技术获取的高程数据满足工程需求,同时,具有快速、高效、省时、经济和方便等特点。The quantitative evaluation of landslide stability is an important content of landslide research and an important technical ba-sis for the selection of landslide disaster prevention program.The establishment of the calculation model is a necessary condition for the quantitative analysis of landslide stability.However,the traditional modeling method requires the first use of GPS-RTK or total station to obtain the ground line through field measurement,and then manually draw the section map,and finally establish the calcula-tion model.The UAV aerial photogrammetric technology can quickly obtain accurate large scale digital orthophoto map(DOM),and then extract ground terrain data through image processing software,so that CASS software can be used to directly generated sections.Through mutual verification and comparison,it is found that the elevation data obtained by the UAV aerial photography technology can meet the engineering requirements,and at the same time,it has the fast,efficient,time-saving,economical and convenient charac-teristics.

关 键 词：滑坡 地质灾害 稳定性 数字正射影像图 无人机 

分 类 号：P231[天文地球—摄影测量与遥感]