An improved three-dimensional spherical DDA model for simulating rock failure

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• 作者：YuYong Jiao ; GangHai Huang ; ZhiYe Zhao ; Fei Zheng…
• 关键词：rock failure ; three ; dimensional spherical discontinuous deformation analysis ; crack propagation ; bonding and cracking algorithm
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：58
• 期：9
• 页码：1533-1541
• 全文大小：1,291 KB
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• 作者单位：YuYong Jiao (1)
  GangHai Huang (1)
  ZhiYe Zhao (2)
  Fei Zheng (1)
  Long Wang (1)
  
  1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China
  2. School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore
  
• 刊物类别：Engineering
• 刊物主题：Chinese Library of Science
  Engineering, general
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1900

文摘

In this paper, a discontinuous numerical model, namely SDDARF3D (three-dimensional spherical discontinuous deformation analysis for rock failure), is proposed for simulating the whole process of rock failure. Firstly, within the framework of the classical discontinuous deformation analysis (DDA) method, the formulation of three-dimensional spherical DDA (3D SDDA) is deduced; secondly, a bonding and cracking algorithm is constructed and the SDDARF3D model is proposed; thirdly, corresponding VC++ calculation code is developed and some verification examples are calculated. The simulated results can intuitively reproduce the failure phenomena of rock mass, indicating that the proposed SDDARF3D numerical model is correct and effective. Keywords rock failure three-dimensional spherical discontinuous deformation analysis crack propagation bonding and cracking algorithm