| 三维地质建模技术在公路地质调绘中的应用 |
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| 引用本文： | 贺建群,陈多才,陈应峰,刘铭扬.三维地质建模技术在公路地质调绘中的应用[J].路基工程,2019,0(6):150-154. |
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| 作者姓名： | 贺建群 陈多才 陈应峰 刘铭扬 |
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| 作者单位： | 中国市政工程中南设计研究总院有限公司,武汉,430000;中国公路工程咨询集团有限公司,北京,100089 |
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| 摘 要： | 以公路野外地质调绘资料为依据，分析了地质调绘地质数据特征，将地质调绘数据划分成空间属性、实体属性和表观属性三种类型；对前两种数据进行格式化进而建立虚拟钻孔和断层面，进行三维地质模型构建。以西宁高速工程可行性研究阶段地质调绘为例，深部地层以地质群组为单元划分地层界面，线位附近浅表地层以地调点和地质界线为依据，构建三维地质模型并对模型精度、建模效率和应用效果进行分析。由于地质调绘数据稀疏，在具体工点和局部细节上地质模型的几何精度存在一定误差；所建三维地质模型将地形地貌与地层岩性融合展示，精度能够满足公路地质选线的要求。
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| 关 键 词： | 三维地质建模 公路地质调绘 可行性研究阶段 建筑信息模型(BIM) 虚拟钻孔 SKUA-GOCAD |
| 收稿时间： | 2019-06-12 |
Application of 3D Geological Modeling Technology in Highway Geological Annotation |
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| Abstract: | Based on field geological annotation data of highway engineering, this paper analyzes the characteristics of geological annotation data which has been classified as three types:spatial attributes, entity attributes and apparent attributes three types. The first two types of data have been formatted for the establishment of virtual boreholes and fault planes to set up three-dimensional geological model. Taking the geological annotation in the feasibility study of Xining highway project as an example, formation interface of deep formation has been classified by geological formation group, survey line nearby superficial strata based on survey point and geological boundary line, 3D geological model has been established and model precision, efficiency and application effect has been analyzed. Due to lack of geological annotation data, there has certain error in worksite and local specific details on the geometry precision on the geological mode. The established three-dimensional geological model whose precision can satisfy the requirements of the highway geological route selection showing topography with formation lithology. |
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