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[1]王威,徐亚杏,汪振东,等.约束剖分的含断层地质体三维构模方法[J].武汉工程大学学报,2014,(07):6-11.[doi:103969/jissn16742869201407002]
　WANG Wei,XU Ya xing,WANG Zhen dong,et al.Modeling of threedimensional geological faults based on constrained Delaunay triangulation[J].Journal of Wuhan Institute of Technology,2014,(07):6-11.[doi:103969/jissn16742869201407002]
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约束剖分的含断层地质体三维构模方法(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年07期
页码:
6-11
栏目:
资源与土木工程
出版日期:
2014-07-31

文章信息/Info

Title:
Modeling of threedimensional geological faults based on constrained Delaunay triangulation
文章编号:
16742869(2014)07000606
作者:
王威; 徐亚杏; 汪振东; 张炯; 高一鸣
武汉工程大学资源与土木工程学院，湖北 武汉 430074
Author(s):
WANG Wei;  XU Yaxing;  WANG Zhendong; ZHANG Jiong; GAO Yiming
School of Resources and Civil Engineering, Wuhan Institute of Technology，Wuhan 430074，China
关键词:
三维构模技术; 断层; 带约束的Delaunay三角剖分
Keywords:
threedimensional modeling technology;  fault;  constraint Delaunay triangulation
分类号:
P231.5
DOI:
103969/jissn16742869201407002
文献标志码:
A
摘要:
针对地下空间三维地质构模技术发展慢的问题，提出一种快速三维构模的方法.首先利用径向扫描法将无约束的点集构建成无约束初始的三角网，再将多源数据中的约束线（包括剖面线、地表地质线、基岩地质线等）依次嵌入到无约束的初始三角网中重新生成带约束的德劳内三角剖分，生成了地层面、断层面等，然后通过人工拼接这些地层面，最终形成完整的三维地质体模型.运用Visual C++ 6.0生成的各种不规则三角网模型，建立了武汉市汉阳区城市三维地质模型.实践结果表明，建立的三角网范围广且包含了大部分的约束点，增加了构模的精度、速度.
Abstract:
Considering that the development of modeling technology for threedimensional (3D) geological underground space is slow, an approach to quick 3D modeling was proposed. First, by using radial scanning method, the unconstrained points were used to construct a triangle mesh with unconstrained initial conditions. Then, the constrained line, including crosssection line, surface geological line, bedrock geology line, etc., in the multisource data were orderly embedded into the triangle mesh to regenerate constrained Delaunay triangle subdivision, and accordingly, the ground surface, the fault plane, etc., were generated. Afterwards, these ground surfaces were artificially assembled to generate an integrated threedimensional geological model. Finally, as a case study, a threedimensional geological model of Hanyang District was established by generating a variety of irregular triangle mesh models. The results show that the generated triangle mesh has a broad scope which includes the majority of the constrained points, and increases the accuracy and speed of modeling.

参考文献/References:

［1］ZHONG D H, LI M C, SONG L G, et al. Enhanced NURBS modeling and visualization for large 3D geoengineering applications：an example from the Jinping first level hydropower engineering project, China ［J］. Computer and Geosciences, 2006, 32(9)：12701282.［2］何赵云,李章林,张夏林. 含断层地质体三维建模技术［J］.软件导刊, 2010, 9(8):175177.HE Zhaoyun, LI Zhanglin, ZHANG Xialin. 3d geological faults modeling technology ［J］. Software Guide, 2010, 9(8):175177.(in Chinese)［3］林报嘉, 叶燕林,赵建伟. 三角网的生成与简化算法［J］. 地理学与国土研究, 2001, 17(1):6972.LIN Baojia, YE Yanlin, ZHAO Jianwei. The establishment ands simplification algorithm of TIN ［J］. Geography and Territorial Research. 2001, 17(1):6972. (in Chinese)［4］Floriai LD. An online algorithm for constrained delaunay triangulation ［J］. CAGIP: Graphical Models and Image Processing, 1992, 54(3): 290300.［5］宋占峰, 詹振炎, 蒲浩. Delaunay 三角网剖分中嵌入约束边的局部调整算法［J］. 西南交通大学学报, 2002, 37(4): 399403.SONG Zhanfeng, ZHAN Zhenyan, PU Hao. A local adjustment algorithm for inserting constrained segments in delaunay triangulation［J］. Journal of Southwest Jiaotong University, 2002, 37(4): 399403. (in Chinese)

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备注/Memo

备注/Memo:
收稿日期：20140419 基金项目：武汉工程大学研究生教育创新基金项目(CX2013121)作者简介：王威（1975），男，湖北武汉市人，副教授，博士，硕士生导师.研究方向：3S与岩土工程.
更新日期/Last Update: 2014-08-20