Reverse modelling of natural rock joints using 3D scanning and 3D printing

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• 作者：Quan Jiang ; ^{qjiang@whrsm.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Xiating Feng ; Yanhua Gong ; Leibo Song ; Shuguang Ran ; Jie Cui
• 关键词：Natural joint ; Joint replication ; 3D scanning ; 3D printing ; Shearing experiment
• 刊名：Computers and Geotechnics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：73
• 期：Complete
• 页码：210-220
• 全文大小：3133 K

文摘

In order to overcome the deficiency of natural joint specimens with the same surface morphology for experimental studies, we present a technical method for replicating natural joint specimens that incorporates two advanced techniques – three-dimensional (3D) scanning and 3D printing – using computer-aided design (CAD) as the ‘bridge’. This method uses an optical scanning apparatus and CAD techniques to reconstruct a virtual joint specimen with the natural rock’s joint morphology, and a 3D printer then manufactures a physical mould based on the virtual joint specimen for casting concrete or plastic specimens quickly and accurately. Quality verification clearly indicated that this method reduces the experimental errors originating from the discrepancies between replicating specimens containing natural joint’s morphology.