文献类型：期刊文献

英文题名：Method for visualizing the shear process of rock joints using 3D laser scanning and 3D printing techniques

作者：Huang, Man[1];Hong, Chenjie[1,2];Sha, Peng[1];Du, Shigui[1,3];Luo, Zhanyou[3];Tao, Zhigang[2]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China;[2]China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R China;[3]Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315000, Peoples R China

年份：2023

卷号：15

期号：1

起止页码：204

外文期刊名：JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000950190300011)、、Scopus(收录号：2-s2.0-85128559615)、WOS

基金：This experimental study was partially funded by the National Natural Science Foundation of China (Grant Nos. 41572299and 41831290), and the 3D-printed modeling work was supported by the Zhejiang Provincial Natural Science Foundation of China (Grant No. LY18D020003), which is gratefully acknowledged.

语种：英文

外文关键词：Rock joint; Shear test; Three-dimensional printing (3DP); Three-dimensional laser scanning (3DLS); Visualization approach

外文摘要：This study presents a visualized approach for tracking joint surface morphology. Three-dimensional laser scanning (3DLS) and 3D printing (3DP) techniques are adopted to record progressive failure during rock joint shearing. The 3DP resin is used to create transparent specimens to reproduce the surface morphology of a natural joint precisely. The freezing method is employed to enhance the mechanical properties of the 3DP specimens to reproduce the properties of hard rock more accurately. A video camera containing a charge-coupled device (CCD) camera is utilized to record the evolution of damaged area of joint surface during the direct shear test. The optimal shooting distance and shooting angle are recommended to be 800 mm and 40 degrees, respectively. The images captured by the CCD camera are corrected to quantitatively describe the damaged area on the joint surface. Verification indicates that this method can accurately describe the total sheared areas at different shear stages. These findings may contribute to elucidating the shear behavior of rock joints. (c) 2023 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).