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论文类型：期刊论文

发表时间：2022-06-28

发表刊物：计算力学学报

卷号：26

期号：3

页面范围：301

ISSN号：1007-4708

摘要：A reasonable joint model is necessary for the numerical simulation of
   viscoelastic jointed rock, If considering joints and rock mass
   individually with their own constitutive model, the computational
   expense will be challenged when the number of joints is fairly large.
   This paper presents a numerical model to predict equivalent constitutive
   relationship and deformation of unidirectional viscoelastic joint rock.
   An adaptive precise algorithm in the time-domain and a simple
   equivalence assumption are combined to convert a time dependent
   inhomogeneous problem into a series of recursive time independent
   homogeneous problems which can be solved either by FEM or other well
   developed numerical schemes. An equivalent numerical simulation for an
   underground cave in unidirectional viscoelastic joint rock is given and
   compared with the solution provided by ANSYS In the viewpoint of balance
   between computing accuracy and efficiency, the results are fairly good.

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