| 城市三维地层建模中虚拟孔的引入与实现 |
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| 引用本文： | 朱良峰,吴信才,刘修国,尚建嘎.城市三维地层建模中虚拟孔的引入与实现[J].地理与地理信息科学,2004,20(6):26-30,43. |
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| 作者姓名： | 朱良峰 吴信才 刘修国 尚建嘎 |
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| 作者单位： | 中国地质大学研究生院,湖北,武汉,430074;中国地质大学信息工程学院,湖北,武汉,430074;中国地质大学信息工程学院,湖北,武汉,430074 |
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| 基金项目： | 国家"九五"重中之重科技攻关项目(96-B02-03-05),国家"863"高技术研究发展计划项目(2001AA135170) |
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| 摘 要： | 该文引入“虚拟孔”的概念并将其应用到实际的城市三维地层建模流程。在建模过程中,用户可以根据实际工作需要,结合对地质模型的理解,在特定位置处加入适当数目的虚拟孔,并将其与实际的钻孔数据一起约束到模型中,从而构建精细的三维地层实体模型,有效满足实际工程的要求。通过一个建模实例,比较了引入虚拟孔前后的建模效果,表明应用虚拟孔建模具有很强的灵活性、直观性和可操作性。
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| 关 键 词： | 三维地层建模 钻孔 虚拟孔 可视化 城市 |
| 文章编号： | 1672-0504(2004)06-0026-05 |
Introduction and Implementation of Virtual Borehole in the Construction of Urban 3D Strata Model |
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| ZHU Liang-feng,WU Xin-cai,LIU Xiu-guo,SHANG Jian-ga.Introduction and Implementation of Virtual Borehole in the Construction of Urban 3D Strata Model[J].Geography and Geo-Information Science,2004,20(6):26-30,43. |
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| Authors: | ZHU Liang-feng WU Xin-cai LIU Xiu-guo SHANG Jian-ga |
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| Institution: | ZHU Liang-feng1,2,WU Xin-cai2,LIU Xiu-guo2,SHANG Jian-ga2 |
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| Abstract: | Engineering borehole data is the primary data source for the reconstruction of urban 3D strata model.For a given study area,sometimes it is impossible to construct an integrated,accurate 3D model based on limited sample data obtained from boreholes,which are usually sparse and scattered.To solve this problem,a conceptual model called virtual borehole is presented.In the process of modeling,several virtual boreholes can be acceded to the 3D strata model on the proper position for the user's demand and comprehension of the geologic model.Virtual boreholes restrict the model just as actual boreholes,and then generate a 3D solid strata model which is accurate and subtle.A case study is presented to compare the practical effects of using and not using virtual borehole.The result shows that it is flexible,visual and operable of using virtual borehole in the 3D strata modeling. |
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| Keywords: | D strata modeling borehole virtual borehole visualization city |
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