煤炭工程 ›› 2015, Vol. 47 ›› Issue (3): 103-105.doi: 10.11799/ce201503034

• 研究探讨 • 上一篇    下一篇

复杂地质体FLAC3D模型自动生成技术研究

李亮   

  1. 陕西煤业化工技术研究院
  • 收稿日期:2014-06-27 修回日期:2014-10-22 出版日期:2015-03-10 发布日期:2015-03-25
  • 通讯作者: 李亮 E-mail:gszyliliang@163.com

Research And Application Of 3d Modeling Under Gully Terrain

  • Received:2014-06-27 Revised:2014-10-22 Online:2015-03-10 Published:2015-03-25

摘要: 我国西部黄土高原发育着最为典型的黄土沟谷地貌,这种复杂的地形地貌直接会影响地下工程岩体结构和应力场分布,利用数值模拟研究这一类问题己成为岩土工程领域不可缺少的分析工具。针对数值模拟软件在复杂三维建模以及网格划分等前处理问题上存在不直观、工作量大等缺点,本文提出了基于HYPERMESH与FLAC3D的沟谷地形三维建模方法。该方法是以地质地形图及岩层柱状图为原始资料,通过AUTOCAD、HYPERMESH软件进行三维实体建模并划分网格,再利用接口程序生成FLAC3D计算模型,实现FLAC3D计算求解的目的。最后,以陕北黄土沟壑区地形为实例,建立了合理的三维计算模型,验证了该方法快速精准建模的实用性和有效性。

关键词: 数值模拟, 沟谷地形, 三维建模, Hypermesh, FLAC3D

Abstract: The most common gully terrain widely distributed in the Loess Plateau area of western China, this complicated landform directly affects the rock structure and stress field distribution in underground engineering, Numerical simulation has become an essential analysis tool to research this class of problems in geotechnical engineering. Against shortcomings of numerical simulation pretreatment in complex 3D Modeling and element mesh dividing caused by not visual and heavy workload, this paper presents the gully terrain 3D Modeling method based on combining HYPERMESH with FLAC3D softwar.The method build 3D Modeling and element mesh dividing by using HYPERMESH and FLAC3D software upon the geological topographic map and the stratigraphic column, an interface program is programed to create the FLAC3D calculation model.All these help to carry out the purpose of FLAC3D analysis.At last, the loess hill and gully area of northern ShanXi province is taken as a sample and the reasonable 3D numerical model is established. The results show that this method can be very valid and practicable in fast and precise modeling.

Key words: Numerical simulation, Gully terrain, 3D Modeling, Hypermesh, FLAC3D

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