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Aug 12, 2020
System Design of 3D Reconstruction of Rock Deformation in Tunnels Based on a Deep Convolutional Neural Network
Authors: Xiaoguang Zhang [email protected], Xuan Zheng [email protected], Shuai Fu [email protected], Xue Li [email protected], and Lipeng Cong [email protected]Author Affiliations
Publication: CICTP 2020
ABSTRACT
This paper presents a high-precision 3D method for non-contact measurement of the deformation of tunnel surrounding rock. The method uses a 2D high-resolution photograph taken with a monocular camera and a 3D reconstruction technique to obtain a 3D image of tunnel surrounding rock. First, we analyze the basic principles of 3D-image-reconstruction technology. Next, we discuss methods for calculating the 3D shape of the known and unknown 2D key points and conclude that the use of deep convolutional neural network is an effective method and a new idea. Finally, we present findings that demonstrate that the 3D reconstruction method proposed in this paper can be used to obtain tri-dimensional models and deformation variables for tunnel surrounding rock that are superior to results obtained using traditional methods. The method is simple, provides good visibility, has a high degree of accuracy, and does not affect the physical structure of the tunnel.
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© 2020 American Society of Civil Engineers.
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Published online: Aug 12, 2020
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1Guangzhou Metro Design and Research Institute Co. Ltd., No. 132, WeiYang Rd., P.O. Box 710016, Xi’an, Shaanxi, China. Email: [email protected]
2School of Electronic and Control Engineering, Chang’an Univ., Middle Section of S. 2nd Ring Rd., P.O. Box 710064, Xi’an, Shaanxi, China. Email: [email protected]
3School of Electronic and Control Engineering, Chang’an Univ., Middle Section of S. 2nd Ring Rd., P.O. Box 710064, Xi’an, Shaanxi, China. Email: [email protected]
4School of Electronic and Control Engineering, Chang’an Univ., Middle Section of S. 2nd Ring Rd., P.O. Box 710064, Xi’an, Shaanxi, China. Email: [email protected]
5School of Electronic and Control Engineering, Chang’an Univ., Middle Section of S. 2nd Ring Rd., P.O. Box 710064, Xi’an, Shaanxi, China. Email: [email protected]
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