| 岩体材料物理网格对流形元覆盖系统形成的影响 |
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| 引用本文： | 朱爱军,邓安福,颜昌武,邓卫东.岩体材料物理网格对流形元覆盖系统形成的影响[J].岩土力学,2004,25(12):1933-1936. |
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| 作者姓名： | 朱爱军 邓安福 颜昌武 邓卫东 |
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| 作者单位： | 1.重庆大学 土木工程学院，重庆 400045；2.重庆交通科研设计院，重庆 4000067 |
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| 基金项目： | 西部交通建设科技项目(2002-318-000-26) |
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| 摘 要： | 流形元的数学覆盖与物理网格相对独立，使流形元覆盖系统的形成比有限元单元网格的形成有更大的灵活性和方便性，但在形成流形元覆盖系统时对物理网格也有一定的依赖。笔者讨论了使用规则网格作为数学覆盖时，岩体材料普遍存在的裂隙和岩层界面这两种物理网格对流形元覆盖系统形成的影响，指出数学覆盖的构造要与岩体裂隙和岩层界面相适应，并提出了相应的流形元覆盖系统的形成方法，有利于流形元法应用于大型岩体工程问题。
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| 关 键 词： | 流形元 覆盖系统 岩体材料 物理网格 |
| 文章编号： | 1000-7598-(2004)12-1933-04 |
| 收稿时间： | 2003-09-08 |
Effects of physical grid in rock mass for generation of cover system for numerical manifold method |
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| ZHU Ai-jun,DENG An-fu,YAN Chang-wu,DENG wei-dong.Effects of physical grid in rock mass for generation of cover system for numerical manifold method[J].Rock and Soil Mechanics,2004,25(12):1933-1936. |
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| Authors: | ZHU Ai-jun DENG An-fu YAN Chang-wu DENG wei-dong |
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| Institution: | 1.College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. Chongqing Communications Research & Design Institute,Chongqing 400067, China |
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| Abstract: | The mathematical cover has relative independence to physical grid, so the generation of cover system for numerical manifold method is more flexible and convenient than finite element grid, but in some physical grid conditions, it has some dependence to physical grid as same as finite element method. Have discussed the effects of crack and boundary line in rock mass to the generation of cover system for numerical manifold method, point out that mathematical cover must suit with crack and boundary line in rock mass, and put forward corresponding method to form the cover system for numerical manifold method, it is helpful for application of the numerical manifold method in rock mass engineering. |
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| Keywords: | numerical manifold method cover system rock mass physical grid |
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