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

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  • Special Issue on Rock Fractures and Discontinuities: Modeling and Analysis
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Abstract

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.

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Authors and Affiliations

  1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China

    YuYong Jiao, GangHai Huang, Fei Zheng & Long Wang

  2. School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore

    ZhiYe Zhao

Authors
  1. YuYong Jiao
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  2. GangHai Huang
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  3. ZhiYe Zhao
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  4. Fei Zheng
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  5. Long Wang
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Correspondence to YuYong Jiao.

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Jiao, Y., Huang, G., Zhao, Z. et al. An improved three-dimensional spherical DDA model for simulating rock failure. Sci. China Technol. Sci. 58, 1533–1541 (2015). https://doi.org/10.1007/s11431-015-5898-9

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  • DOI: https://doi.org/10.1007/s11431-015-5898-9

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