基于无人机航摄的高陡/直立边坡快速地形测量及三维数值建模方法

王明 李丽慧 廖小辉 黄北秀 王学良 陈子干 杨福华 刘建立

王明, 李丽慧, 廖小辉, 黄北秀, 王学良, 陈子干, 杨福华, 刘建立. 2019: 基于无人机航摄的高陡/直立边坡快速地形测量及三维数值建模方法. 工程地质学报, 27(5): 1000-1009. doi: 10.13544/j.cnki.jeg.2019052
引用本文: 王明, 李丽慧, 廖小辉, 黄北秀, 王学良, 陈子干, 杨福华, 刘建立. 2019: 基于无人机航摄的高陡/直立边坡快速地形测量及三维数值建模方法. 工程地质学报, 27(5): 1000-1009. doi: 10.13544/j.cnki.jeg.2019052
WANG Ming, LI Lihui, LIAO Xiaohui, HUANG Beixiu, WANG Xueliang, CHEN Zigan, YANG Fuhua, LIU Jianli. 2019: RAPID TOPOGRAPHIC MEASUREMENT AND THREE-DIMENSIONAL NUMERICAL MODELING METHOD FOR HIGH-STEEP/UPRIGHT SLOPES BASED ON AERIAL PHOTOGRAPHY OF UAV. JOURNAL OF ENGINEERING GEOLOGY, 27(5): 1000-1009. doi: 10.13544/j.cnki.jeg.2019052
Citation: WANG Ming, LI Lihui, LIAO Xiaohui, HUANG Beixiu, WANG Xueliang, CHEN Zigan, YANG Fuhua, LIU Jianli. 2019: RAPID TOPOGRAPHIC MEASUREMENT AND THREE-DIMENSIONAL NUMERICAL MODELING METHOD FOR HIGH-STEEP/UPRIGHT SLOPES BASED ON AERIAL PHOTOGRAPHY OF UAV. JOURNAL OF ENGINEERING GEOLOGY, 27(5): 1000-1009. doi: 10.13544/j.cnki.jeg.2019052

基于无人机航摄的高陡/直立边坡快速地形测量及三维数值建模方法

doi: 10.13544/j.cnki.jeg.2019052
基金项目: 

中国科学院战略性先导科技专项(A类) XDA23090402

浙江省公益技术应用研究计划项目 2017C33190

国家自然科学基金 41977248

详细信息
    作者简介:

    王明(1994-), 男, 硕士生, 主要从事工程地质力学及地质灾害研究工作.Email:wangming182@mails.ucas.ac.cn

    通讯作者:

    李丽慧(1976-), 女, 博士, 副研究员, 主要从事工程地质及微观岩石力学方面的研究.Email:lhli2942@mail.igcas.ac.cn

  • 中图分类号: P642.2

RAPID TOPOGRAPHIC MEASUREMENT AND THREE-DIMENSIONAL NUMERICAL MODELING METHOD FOR HIGH-STEEP/UPRIGHT SLOPES BASED ON AERIAL PHOTOGRAPHY OF UAV

Funds: 

the Strategic Priority Research Program of the Chinese Acadamy of Sciences XDA23090402

Zhejiang Public Welfare Technology Application Research Project 2017C33190

the National Natural Science Foundation of China 41977248

  • 摘要: 对复杂地形的高陡/直立边坡的地形测量及三维数值模型的建立一直是地质工作者面临的难题。近年来,无人机由于其形体小巧、机动性强以及可以获取高分辨率影像的特性在地质调查中受到了广泛的应用。本文基于低空无人机倾斜摄影技术,借助Agisoft Photoscan三维实景建模软件和基于逆向工程的Geomagic Studio强大的点云数据处理功能,结合南方CASS的地形制图功能对复杂地形的高陡/直立边坡实现快速地形成图。并利用Geomagic Studio的CAD曲面建模功能,重构复杂地形的高陡/直立边坡闭合CAD曲面模型,再通过Hypermesh强大的几何处理及网格划分能力,对CAD曲面模型进行模型切割并网格化,实现复杂地形的高陡/直立边坡的精细三维数值模型的建立,最后转化为FLAC3D可识别的文件格式进行计算分析。本文选择了浙江省神仙居景区飞天瀑景点作为实例研究,结果表明,无人机的使用使复杂地形的高陡/直立边坡实现了快速高效且精确的地形成图和三维建模。该方法具有简单实用、快速便捷且实用性强的优点。
  • 图  1  快速地形测量及三维数值建模流程

    Figure  1.  Rapid topographic measurement and 3D numerical modeling flow diagram

    图  2  镰刀洞

    Figure  2.  Scythe Cave

    图  3  飞天瀑岩壁上危岩体

    Figure  3.  Dangerous rock mass on the rock wall of Feitian Waterfall

    图  4  无人机航线图

    Figure  4.  UAV route map

    图  5  密集点云数据

    Figure  5.  Dense point cloud data

    图  6  正射影像图

    Figure  6.  Orthophoto image

    图  7  在Geomagic Studio中进行点云封装处理

    a.点云封装; b.植被修理

    Figure  7.  Point cloud encapsulation in Geomagic Studio

    图  8  三角网修正

    Figure  8.  Triangulation correction

    图  9  飞天瀑岩体等高线图

    a.自动生成的三角网; b.修正后三角网

    Figure  9.  Contour map of the Feitian waterfall rock mass

    图  10  整饰后的地形图

    Figure  10.  Topographic map after finishing

    图  11  飞天瀑岩体有限单元网格模型

    Figure  11.  Finite element mesh model of Feitian waterfall rock mass

    图  12  应力云图

    a.最小主应力云图; b.最大主应力云图

    Figure  12.  Stress cloud map

    表  1  飞天瀑落石统计表

    Table  1.   Feitian waterfall rockfall statistics

    堆积体区域 落石编号 尺寸 形状 数量统计/块
    上方 LS1 1.5×1.5×0.3 m3 方形 1
    LS2 4.0×4.0×2.5 m3 方形 1
    LS3 2.0×2.0×2.0 m3 方形 1
    LS4 0.1×0.1×0.05 m3 方形 小碎石,铺满近2 m2
    下方 LS5 4.5×0.5×0.4 m3 方形 1
    LS6 1.6×1.2×0.8 m3 方形 1
    LS7 1.5×1.0×0.5 m3 方形 1
    LS8 1.5×1.1×0.7 m3 方形 1
    LS9 1.2×1.8×0.9 m3 方形 1
    LS10 1.5×0.8×0.2 m3 方形 1
    LS11 3.2×1.3×1.0 m3 方形 3
    缓冲区 LS12 1.5×1.5×1.5 m3 方形 18
    LS13 3.0×3.0×3.0 m3 方形 5
    LS14 0.5×0.5×0.5m3 方形 56
    下载: 导出CSV
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  • 收稿日期:  2019-05-24
  • 修回日期:  2019-07-03
  • 刊出日期:  2019-10-25

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