逐层开挖工程整体三维影像模型构建方法

doi:10.13278/j.cnki.jjuese.20180164

Abstract

Abstract: In a step by step excavation engineering such as high slope,large underground cavern and deep foundation pit, the project image changes greatly, the excavation duration is long, the position of excavation face is constantly changing, and the geological information of excavation face needs to be collected in time. These characteristics are not conducive to build a 3D image model. These problems cannot be solved by using the traditional static method. Taking the dam foundation surface slope of Wudongde hydropower station as a typical example of step by step excavation engineering, the authors explored a 3D image modelling method. Based on the oblique photographic data with unmanned aerial vehicle (UAV), image control point's measurement, and data processing and modelling, the overall 3D images are obtained. The quality of the 3D images is good and the coordinate error is generally 5.1-7.9 cm, and the coordinate precision meets the engineering requirement. This 3D image model construction method lays a foundation for engineering information storage, analysis, display and later use.

Key words: 3D image model construction, dam foundation surface, unmanned aerial vehicle oblique photogrammetry, Wudongde hydropower station

CLC Number:

P231

Wang Jiliang, Shi Yan, Zhou Bingqiang, Yang Jing, Hao Wenzhong, Liao Libing, Kang Shuangshuang. Method of Overall 3D Image Model Construction for Step by Step Excavation Engineering[J].Journal of Jilin University(Earth Science Edition), 2018, 48(5): 1589-1595.

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Method of Overall 3D Image Model Construction for Step by Step Excavation Engineering

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