On the four-dimensional lattice spring model for geomechanics  

作　　者：Gao-Feng Zhao Xiaodong Hu Qin Li Jijian Lian Guowei Ma 

机构地区：[1]State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University [2]School of Civil Engineering, Hebei University of Technology

出　　处：《Journal of Rock Mechanics and Geotechnical Engineering》2018年第4期661-668,共8页岩石力学与岩土工程学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Grant No. 1177020290)

摘　　要：Recently, a four-dimensional lattice spring model(4D-LSM) was developed to overcome the Poisson’s ratio limitation of the classical LSM by introducing the fourth-dimensional spatial interaction. In this work, some aspects of the 4D-LSM on solving problems in geomechanics are investigated, such as the ability to reproduce elastic properties of geomaterials, the capability of solving heterogeneous problems,the accuracy on modelling stress wave propagation, the ability to solve dynamic fracturing and the parallel computational efficiency. Our results indicate that the 4D-LSM is promising to deal with problems in geomechanics.Recently, a four-dimensional lattice spring model(4D-LSM) was developed to overcome the Poisson's ratio limitation of the classical LSM by introducing the fourth-dimensional spatial interaction. In this work, some aspects of the 4D-LSM on solving problems in geomechanics are investigated, such as the ability to reproduce elastic properties of geomaterials, the capability of solving heterogeneous problems,the accuracy on modelling stress wave propagation, the ability to solve dynamic fracturing and the parallel computational efficiency. Our results indicate that the 4D-LSM is promising to deal with problems in geomechanics.

关 键 词：Lattice spring model (LSM) Fourth-dimensional spatial interaction FRACTURING GEOMECHANICS 

分 类 号：O3[理学—力学]