Implementation of displacement-dependent Barton-Bandis rock joint model into discontinuous deformation analysis
Implementation of displacement-dependent Barton-Bandis rock joint model into discontinuous deformation analysis
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DOI：
10.1016/j.compgeo.2016.12.030
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发表时间：
2017-06
影响因子：
5.3
通讯作者：
Shuqi Ma;Zhiye Zhao;W. Nie;J. Nemcik;Zhenyu Zhang;Xing Zhu
中科院分区：
文献类型：
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作者：
Shuqi Ma;Zhiye Zhao;W. Nie;J. Nemcik;Zhenyu Zhang;Xing Zhu
不连续变形分析（DDA）已广泛应用于分析各种岩石工程问题。节理强度对节理岩体的稳定性起着至关重要的作用，本文尝试将Barton-Bandis节理模型引入到DDA规范中，以取代原来的Mohr-Coulomb节理模型。建立的巴顿-班迪斯节理模型具有抗剪强度随位移变化的特征，并通过直接剪切试验进行了验证。以滑块在斜面上滑动为例，验证了DDA-BB模型预测滑块动态运动特性的能力。
Discontinuous deformation analysis (DDA) has been widely applied in analyzing various rock engineering problems. As the joint strength play a vital role in the stability of jointed rock mass, this paper makes an attempt to implement the Barton-Bandis rock joint model into the DDA code to replace the original Mohr-Coulomb joint model. The developed Barton-Bandis joint model which is characterized by displacement-dependent shear strength is verified by experimental direct shear tests. An example of a block sliding on an inclined plane is used to demonstrate the capacity of the DDA-BB model in predicting the dynamic motion behavior of sliding blocks.