无人机低空摄影测量在黄土滑坡调查评估中的应用

发布时间：2018-02-05 17:57

本文关键词： 无人机低空摄影测量区域滑坡单体滑坡黄土滑坡　出处：《地球科学进展》2017年03期 　论文类型：期刊论文

【摘要】：无人机低空摄影测量技术是继遥感和三维激光扫面之后,在三维空间数据领域中又一个可用于大面积、高精度和快速获取三维点云数据的技术方法。随着摄影测量算法的改进和商品化发展,目前该项新技术在国内外广泛应用于各个领域,在地质灾害防治领域的应用也处于不断尝试阶段。结合利用无人机低空摄影测量技术调查甘肃黑方台地区黄土滑坡实例,在简要介绍低空摄影测量的基本原理和数据获取方法的基础上,阐述了该技术在区域黄土滑坡调查(面积为36 km~2)和单体黄土滑坡调查方面的应用效果。结果表明:在区域滑坡调查方面,可以很好地认识其空间分布规律和发育特征;在单体滑坡方面,通过滑坡前后两期低空摄影测量数据分析,很好地认识滑坡的滑前变形迹象和成灾过程。由此可见,低空摄影测量技术在地质灾害防治领域具有广阔应用前景和一定科研价值。
[Abstract]:After remote sensing and 3D laser scanning, UAV low-altitude photogrammetry can be used in large area in the field of three-dimensional spatial data. With the improvement and commercialization of photogrammetry algorithm, the new technology has been widely used in various fields at home and abroad. The application in the field of geological hazard prevention and control is also in the stage of continuous attempt. Combined with the use of unmanned aerial vehicle low-altitude photogrammetry technology to investigate the loess landslide in Heifangtai area Gansu Province. The basic principle and data acquisition method of low-altitude photogrammetry are introduced briefly. The application effect of this technique in the investigation of regional loess landslide (area of 36 km2) and single loess landslide investigation is described. The results show that the technique can be used in the investigation of regional landslide. The spatial distribution and developmental characteristics can be well understood. In the aspect of single landslide, through the analysis of the low-altitude photogrammetry data before and after the landslide, the signs of deformation and the process of the landslide before and after landslide are well understood. Low-altitude photogrammetry has broad application prospect and scientific research value in the field of geological disaster prevention and control.
【作者单位】：成都理工大学地质灾害防治与地质环境保护国家重点实验室;
【基金】：国家重点基础研究发展计划项目“黄土重大灾害超前判识、临灾预警与风险控制”(编号:2014CB744703) 国家创新研究群体科学基金资助项目“西部地区重大地质灾害潜在隐患早期识别与监测预警”(编号:41521002)资助~~
【分类号】：P642.22

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