复杂断层网建模关键技术
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摘要
面对大多数的建模方法主要采用基于多源数据交互的建模方式,需要大量人工交互且不便于计算机自动或半自动化处理等问题,引入空间索引和OBB碰撞检测方法来检测断层间的接触关系,使用符合地质规律的测地线进行追踪,采用路径切割方法处理两个地质界面间的线性接触关系,从而自动处理任意断层面间的截切关系,构建复杂断层网。利用某地区作为研究区域,从实际数据出发,构建该区复杂的三维断层网,以验证提出的断面接触关系处理技术的有效性。
In the face of most modeling methods are based on multi-source data interaction modeling,requires a lot of manual interaction and does not facilitate the computer automatic or semi-automatic processing.In order to automatically deal with arbitrary complex fault cutting relations,this article introduces the spatial index and OBB collision detection method to detect the contact relationship between the faults.In order to conform to the geological laws,the geodesic is used for tracking,and a linear cutting method is used to deal with the linear contact relationship between two geological interfaces.Using a certain area as the research area,based on the actual data,the complex 3 D fault system is constructed,to verify the feasibility of the automatic processing method of contact relation between fault planes proposed.
In the face of most modeling methods are based on multi-source data interaction modeling,requires a lot of manual interaction and does not facilitate the computer automatic or semi-automatic processing.In order to automatically deal with arbitrary complex fault cutting relations,this article introduces the spatial index and OBB collision detection method to detect the contact relationship between the faults.In order to conform to the geological laws,the geodesic is used for tracking,and a linear cutting method is used to deal with the linear contact relationship between two geological interfaces.Using a certain area as the research area,based on the actual data,the complex 3 D fault system is constructed,to verify the feasibility of the automatic processing method of contact relation between fault planes proposed.
引文
1孟小红.地质模型计算机辅助设计原理与应用.北京:地质出版社,2001Meng Xiaohong.The principle and application of computer aided design of geological model.Beijing:Geological Press,2001
2 Tertois A,Mallet J.Editing faults within tetrahedral volume models in real time.Geological Society London Special Publications,2007;292(1):89
3 Cherpeau N,Caumon G,Levy B.Stochastic simulations of fault networks in 3D structural modeling.Comptes Rendus Geoscience,2010;342(9):687-694
4 Wu Q,Xu H.An approach to computer modeling and visualization of geological faults in 3D.Computers&Geosciences,2003;29(3):503-509
5武强,徐华.三维地质建模与可视化方法研究.中国科学(D辑:地球科学),2004;34(1):54-60Wu Qiang,Xu Hua.Research on 3D geological modeling and visualization method.Science in China(Serial.D:Earth Sciences),2004;34(1):54-60
6王润怀,李永树.异源点集下三维断层建模方法.煤田地质与勘探,2007;35(5):11-16Wang Runhuai,Li Yongshu.3D fault modeling on point sets from different sources.Coal Geology&Exploration,2007;35(5):11-16
7朱良峰,潘信.地质断层三维构模技术研究.岩土力学,2008;29(1):274-278Zhu Liangfeng,Pan Xin.Study on computer modeling of geological faults in 3D.Rock and Soil Mechanics,2008;29(1):274-278
8 Hoffman K S,Neave J W,Nilsen E H.Beyond the Y-A solution to modeling half-Y and half-λfaults in structural frameworks.SEG Technical Program Expanded Abstracts,2007;26(1):1402
9李兆亮,潘懋,杨洋,等.三维复杂断层网建模方法及应用.北京大学学报(自然科学版),2015;51(1):79-85Li Zhaoliang,Pan Mao,Yang Yang,et al.Research and application of the three-dimensional complex fault network modeling.Acta Scientiarum Naturalium Universitatis Pekinensis,2015;51(1):79-85
10 Lecour M,Cognot R,Duvinage I.Modelling of stochastic faults and fault networks in a structural uncertainty study.Petroleum Geoscience,2001;7(S):31-42
11 Moller T.A fast triangle-triangle intersection test.Journal of Graphics Tools,1997;2(2):25-30
12吴耕宇,潘懋,郭艳君,等.改进的点到三角网距离快捷算法.计算机辅助设计与图形学学报,2014;26(3):348-355Wu Gengyu,Pan Mao,Guo Yanjun,et al.An Improved algorithm for fast computing distance between points and triangle meshes.Journal of Computer-aided Design&Computer Graphics,2014;26(3):348-355
13张少丽,王毅刚,陈小雕.基于空间分解的三角网络模型求交方法.计算机应用,2009;29(10):2671-2673Zhang Shaoli,Wang Yigang,Chen Xiaodiao.Intersection method for triangular mesh model based on space division.Journal of Computer Applications,2009;29(10):2671-2673
14 Ericson C Real-time collision detection.Boca Raton:CRCPress,2004
15 Bobic N.Advanced collision detection techniques.[2016-12-08].http://www.gamasutra.com/fetures/20000330/bobic_01.htm
16杨洋,李兆亮,潘懋.基于拓扑追踪的不规则三角网裁剪算法.地理与地理信息科学,2014,30(3):21-24Yang Yang,Li Zhaoliang,Pan Mao.Clipping algorithm for triangulated irregular network based on topology.Geography and Geo-information Science,2014;30(3):21-24
2 Tertois A,Mallet J.Editing faults within tetrahedral volume models in real time.Geological Society London Special Publications,2007;292(1):89
3 Cherpeau N,Caumon G,Levy B.Stochastic simulations of fault networks in 3D structural modeling.Comptes Rendus Geoscience,2010;342(9):687-694
4 Wu Q,Xu H.An approach to computer modeling and visualization of geological faults in 3D.Computers&Geosciences,2003;29(3):503-509
5武强,徐华.三维地质建模与可视化方法研究.中国科学(D辑:地球科学),2004;34(1):54-60Wu Qiang,Xu Hua.Research on 3D geological modeling and visualization method.Science in China(Serial.D:Earth Sciences),2004;34(1):54-60
6王润怀,李永树.异源点集下三维断层建模方法.煤田地质与勘探,2007;35(5):11-16Wang Runhuai,Li Yongshu.3D fault modeling on point sets from different sources.Coal Geology&Exploration,2007;35(5):11-16
7朱良峰,潘信.地质断层三维构模技术研究.岩土力学,2008;29(1):274-278Zhu Liangfeng,Pan Xin.Study on computer modeling of geological faults in 3D.Rock and Soil Mechanics,2008;29(1):274-278
8 Hoffman K S,Neave J W,Nilsen E H.Beyond the Y-A solution to modeling half-Y and half-λfaults in structural frameworks.SEG Technical Program Expanded Abstracts,2007;26(1):1402
9李兆亮,潘懋,杨洋,等.三维复杂断层网建模方法及应用.北京大学学报(自然科学版),2015;51(1):79-85Li Zhaoliang,Pan Mao,Yang Yang,et al.Research and application of the three-dimensional complex fault network modeling.Acta Scientiarum Naturalium Universitatis Pekinensis,2015;51(1):79-85
10 Lecour M,Cognot R,Duvinage I.Modelling of stochastic faults and fault networks in a structural uncertainty study.Petroleum Geoscience,2001;7(S):31-42
11 Moller T.A fast triangle-triangle intersection test.Journal of Graphics Tools,1997;2(2):25-30
12吴耕宇,潘懋,郭艳君,等.改进的点到三角网距离快捷算法.计算机辅助设计与图形学学报,2014;26(3):348-355Wu Gengyu,Pan Mao,Guo Yanjun,et al.An Improved algorithm for fast computing distance between points and triangle meshes.Journal of Computer-aided Design&Computer Graphics,2014;26(3):348-355
13张少丽,王毅刚,陈小雕.基于空间分解的三角网络模型求交方法.计算机应用,2009;29(10):2671-2673Zhang Shaoli,Wang Yigang,Chen Xiaodiao.Intersection method for triangular mesh model based on space division.Journal of Computer Applications,2009;29(10):2671-2673
14 Ericson C Real-time collision detection.Boca Raton:CRCPress,2004
15 Bobic N.Advanced collision detection techniques.[2016-12-08].http://www.gamasutra.com/fetures/20000330/bobic_01.htm
16杨洋,李兆亮,潘懋.基于拓扑追踪的不规则三角网裁剪算法.地理与地理信息科学,2014,30(3):21-24Yang Yang,Li Zhaoliang,Pan Mao.Clipping algorithm for triangulated irregular network based on topology.Geography and Geo-information Science,2014;30(3):21-24