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基于有限差分的隧道建模与分析技术

, PP. 55-59

Keywords: 隧道工程,有限差分,建模,数值模拟

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Abstract:

针对FLAC3D软件在多导洞分步开挖隧道建模方面存在的不足,首次将任意平面前沿推进法三角网生成技术应用于FLAC3D模型建立过程中,重点研究了适合软件内置Fish语言编程的数据结构和算法流程,引入邻边位置判据,提高算法效率;生成正三角形单元或等腰三角形单元,提高单元质量;以数学函数进行疏密控制,有效实现了自适应划分。成功实现了独立的、无需依赖其他建模软件的FLAC3D前处理程序;将网格生成技术应用于实际隧道工程的计算建模中,取得了很好的效果,充分验证了该方法的可行性。

References

[1]  向天宇,赵人达.结构损伤识别的双重网格算法[J].中国公路学报,2006,19(4):94-97. XIANG Tian-yu,ZHAO Ren-da.Dual mesh method for structure damage detection[J].China Journal of Highway and Transport,2006,19(4):94-97.
[2]  刘怀辉.平面区域有限元三角网格剖分算法研究[D].济南:山东大学,2007.
[3]  刘 荣,郑永红,游亚戈.二维有限元网格自动自适应生成[J].计算机辅助设计与图形学学报,2005,17(11):2459-2464. LIU Rong,ZHENG Yong-hong,YOU Ya-ge.Automatic and adaptive generation of two dimensional finite element meshes[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(11):2459-2464.
[4]  丁秀美,黄润秋,刘光士.FLAC3D前处理程序开发及其工程应用[J].地质灾害与环境保护,2004,15(2):69-73. DING Xiu-mei,HUANG Run-qiu,LIU Guang-shi.Development of pre-processing software for FLAC3D[J].Journal of Geological Hazards and Environment,2004,15(2):69-73.
[5]  王明华,白 云.层状岩体三维可视化构模与数值模拟的集成研究[J].岩土力学,2005,26(7):1123-1126. WANG Ming-hua,BAI Yun.Study on integration of three-dimensional modeling and numerical simulation for stratified rock mass[J].Rock and Soil Mechanics,2005,26(7):1123-1126.
[6]  Lo S H.Delaunay triangulation of non-convex planar domains[J].International Journal for Numerical Methods in Engineering,1989,28(12):2695- 2707.
[7]  刘春太,杨晓东,陈静波,等.任意平面域渐变三角形网格的自动划分[J].计算机辅助设计与图形学报,1999,11(4):293-295. LIU Chun-tai,YANG Xiao-dong,CHEN Jing-bo,et al.Automatic triangulation of grid mesh for arbitrary planar domain[J].Journal of Computer-Aided Design & Computer Graphics,1999,11(4):293-295.
[8]  王 磊,刘寒冰,高一平,等.薄壁杆件六面体网格剖分的组装法[J].中国公路学报,2005,18(1):51-56. WANG Lei,LIU Han-bing,GAO Yi-ping,et al.Assembly algorithm of hexahedral meshes generation for thin wainscot structure[J].China Journal of Highway and Transport,2005,18(1):51-56.
[9]  张景涛.基于改进约束Delaunay三角形算法的公路虚拟环境建模[J].长安大学学报:自然科学版,2005 25(5):38-42. ZHANG Jing-tao.Highway virtual environmental model based on improved CDT algorithm[J].Journal of Chang'an University:Natural Science Edition,2005 25(5):38-42.
[10]  马智民,罗 斌.Delaunay三角网构建DEM整体优化算法[J].长安大学学报:自然科学版,2008,28(3):44-48. MA Zhi-min,LUO Bin.Entire optimized triangulation algorithm of Delaunay triangle network for DEM construction[J].Journal of Chang'an University:Natural Science Edition,2008,28(3):44-48.
[11]  宋占峰,詹振炎,蒲 浩.道路整体模型视相关简化方法研究[J].中国公路学报,2004,17(2):6-10. SONG Zhan-feng,ZHAN Zhen-yan,PU Hao.Study of the method of view-dependent simplification of road integrated model[J].China Journal of Highway and Transport,2004,17(2):6-10.

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