基于多期无人机影像的泥石流物源三维精细量化技术应用——以汶川县锄头沟为例
Application of 3D Fine Quantification Technology of Debris Flow Source Based on Multi-period UAV Images
高路 1赵松江 1胡骁 1曾贞 1周红1
作者信息
- 1. 四川省地质灾害防治工程技术研究中心,成都 610081;四川省华地建设工程有限责任公司,成都 610081
- 折叠
摘要
高山峡谷区地形地质条件复杂,交通条件困难.该文以汶川县锄头沟为例,利用无人机摄影测量技术获取多期次、高精度实景三维数据,建立多期差分模型,分析泥石流沟地表形态演化.结果表明:利用多期无人机影像开展复杂山区泥石流物源三维精细量化研究,可精细测量物源起动范围及数量,跟踪起动后固体物质在沟道堆积范围及数量,为复杂山区泥石流物源起动、搬运、堆积等特征调查提供技术方法,为泥石流防治工程提供数据参考.
Abstract
The terrain and geology of the high mountain gorge area are complicated and the traffic conditions are difficult.Taking Chutou Ditch in Wenchuan County as an example,this paper uses UAV photomeasurement technology to obtain multi-phase and high-precision 3D real scene data,and establishes multi-phase difference model to analyze the surface morphology evolution of debris flow ditch.The results show that using multi-period UAV images to carry out 3D fine quantitative research on debris flow sources in complex mountainous areas can accurately measure the starting range and quantity of debris sources,and track the accumulation range and quantity of solid materials in the channel after starting.It provides technical methods for the investigation of debris flow source starting,transport and accumulation in complex mountainous areas,and provides data reference for debris flow prevention and control projects.
关键词
泥石流物源/实景三维数据/演化过程/三维精细量化Key words
debris flow source/real 3D data/evolution process/Three-Dimensional fine quantization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据