赵明宇, 王凤艳, 王明常, 吴琼, 胡瀚, 丁庆. 2018: 基于无人机摄影测量的岩体结构面信息获取. 工程地质学报, 26(s1): 480-487. DOI: 10.13544/j.cnki.jeg.2018173
    引用本文: 赵明宇, 王凤艳, 王明常, 吴琼, 胡瀚, 丁庆. 2018: 基于无人机摄影测量的岩体结构面信息获取. 工程地质学报, 26(s1): 480-487. DOI: 10.13544/j.cnki.jeg.2018173
    ZHAO Mingyu, WANG Fengyan, WANG Mingchang, WU Qiong, HU Han, DING Qing. 2018: ROCK MASS DISCONTINUITY ACQUISITION BASED ON PHOTOGRAMMETRY OF UAV. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 480-487. DOI: 10.13544/j.cnki.jeg.2018173
    Citation: ZHAO Mingyu, WANG Fengyan, WANG Mingchang, WU Qiong, HU Han, DING Qing. 2018: ROCK MASS DISCONTINUITY ACQUISITION BASED ON PHOTOGRAMMETRY OF UAV. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 480-487. DOI: 10.13544/j.cnki.jeg.2018173

    基于无人机摄影测量的岩体结构面信息获取

    ROCK MASS DISCONTINUITY ACQUISITION BASED ON PHOTOGRAMMETRY OF UAV

    • 摘要: 目前岩体结构面信息获取主要有人工现场接触测量、三维激光扫描和近景摄影测量等方式。随着无人机摄影测量技术的成熟,利用无人机对岩体边坡全方位、多角度摄影,建立边坡三维模型,可以更全面、准确、高效地获取结构面信息。本文以长春净月东升采石场边坡为研究对象,利用大疆无人机精灵3对边坡进行摄影,利用免棱镜全站仪进行坡面控制测量,利用Pix4Dmapper建立边坡三维模型,用未参与建模的控制点进行模型检核,满足精度要求后,在边坡三维模型上测得岩体结构面特征点坐标,结合结构面迹线展示模型和基于三维坐标的产状计算模型,获取结构面的迹线和产状信息。通过与人工罗盘测得的产状信息进行对比得到基于无人机摄影测量的结构面产状获取精度。研究表明,基于无人机摄影测量的岩体结构面信息获取,费用少、劳动强度低、效率高、精度可靠,具有广阔的应用前景。

       

      Abstract: At present, the methods for obtaining information of rock mass discontinuity mainly include artificial field contact measurement, three-dimensional laser scanning and close-range photogrammetry. With the maturity of UAV photogrammetry technology, the use of a UAV to survey all-around, multi-angle photography for the rock slope and establish a three-dimensional model for the slope can more comprehensively, accurately and efficiently obtain the information of the discontinuities. In this paper, the slope in Changchun Jingyuedongsheng quarry is used as the object of study. The phantom 3 of Dajiang UAV is used to photograph the slope, and the prism less total station instrument is used for slope control measurement. The Pix4Dmapper is used to establish the three-dimensional model of the slope. After the model checking with control points not involved in modeling, and meeting the accuracy requirements, the coordinates of the feature points of the rock slope discontinuities are measured on the model. Furthermore, combined with the discontinuity trace line display model and the model for calculating the orientation based on the three-dimensional coordinates. The trace lines and orientations of discontinuities are obtained. Compared with orientations that are measured artificially with compass, the precision of the orientation acquisition of the discontinuities based on photogrammetry of the UAV is obtained. The research shows that the information acquisition of rock mass discontinuity by photogrammetry of UAV is low in cost, low in labor intensity, high in efficiency, reliable in accuracy, and has broad application prospect.

       

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