ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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地质结构约束下的城市多要素三维属性建模方法研究以西咸新区为例

李林, 王涛, 董英, 曾磊, 张戈, 张新社

李林, 王涛, 董英, 等. 地质结构约束下的城市多要素三维属性建模方法研究—以西咸新区为例[J]. 西北地质, 2023, 56(3): 169-177. DOI: 10.12401/j.nwg.2023091
引用本文: 李林, 王涛, 董英, 等. 地质结构约束下的城市多要素三维属性建模方法研究—以西咸新区为例[J]. 西北地质, 2023, 56(3): 169-177. DOI: 10.12401/j.nwg.2023091
LI Lin, WANG Tao, DONG Ying, et al. Multi–Factor Attribute Modeling Method Constrained by Geological Structure:A Case Study in Xixian New Area[J]. Northwestern Geology, 2023, 56(3): 169-177. DOI: 10.12401/j.nwg.2023091
Citation: LI Lin, WANG Tao, DONG Ying, et al. Multi–Factor Attribute Modeling Method Constrained by Geological Structure:A Case Study in Xixian New Area[J]. Northwestern Geology, 2023, 56(3): 169-177. DOI: 10.12401/j.nwg.2023091

地质结构约束下的城市多要素三维属性建模方法研究—以西咸新区为例

基金项目: 中国地质调查局项目“西安多要素城市地质调查”(1212011220031)和“西安市地质安全体检与风险评估示范”(DD20211317)联合资助。
详细信息
    作者简介:

    李林(1976−),男,硕士,高级工程师,主要从事地学空间分析及地学信息化建设工作。E−mail:llin@mail.cgs.gov.cn

    通讯作者:

    王涛(1987−),男,硕士,高级工程师,主要从事水工环地质调查与研究。E−mail:476644953@qq.com

  • 中图分类号: P546

Multi–Factor Attribute Modeling Method Constrained by Geological Structure:A Case Study in Xixian New Area

  • 摘要:

    支持结构——属性一体化表达的建模方法是三维建模研究的重点和难点之一。已有三维地质建模技术往往存在结构与属性建模过程的割裂,难以实现对地质结构先验知识与属性分析模拟的融合表达。笔者以西咸新区工程地质建模为例,基于多要素精细化探测成果,建立区域统一的地质构造框架模型;在地质构造约束下,充分考虑地质单元特征,精细剖分建模网格,采用随机模拟算法开展属性建模研究,从而实现地质结构约束下的三维属性模型构建。本方法既保留了构造建模对层面的清晰划分,又可以在地层内部更加合理地展现地质属性的空间分布和变化,能够在工程地质勘察和城市地下空间开发等领域得到应用。

    Abstract:

    The 3D geological modeling method that supports the structure–attribute integrated representation is one of the keys and difficulties in the research of 3D modeling. Existing 3D geological modeling technology is difficult to realize the integration and expression of the prior knowledge of geological structure and attribute analysis and simulation. Taking Xixian new area as an example, a unified regional geological structure framework model is established. Under the constraint of geological structure conditions, three–dimensional structure–attribute integrated expression are realized. This method not only retains geology structural modeling, but also can more reasonably show the spatial distribution and change of geological attributes inside the strata It has been applied in engineering geological investigation and urban underground space development.

  • 图  1   三维地质建模流程图

    Figure  1.   Construction process of 3D geologic modeling

    图  2   网格化方法示意图

    Figure  2.   Schematic diagram of gridding methods

    图  3   西咸新区地质地貌图

    Figure  3.   Geomorphological map of Xixian New Area

    图  4   西咸新区三维地质结构与岩性随机模型

    Figure  4.   3D geological structure and lithology model of Xixian New Area

    图  5   西咸新区三维属性随机模型图

    Figure  5.   3D geological attribute stochastic model of Xixian New Area

    图  6   结构与属性模型虚拟剖面对比图

    Figure  6.   Profile comparison of structure and attribute model

    图  7   地下空间开发三维稳定性评价图

    Figure  7.   3D Stability evaluation map for underground space development

    表  1   建模数据源

    Table  1   Data source for 3D geological modeling

    编号数据源精度
    1大西安地区遥感影像图2 m
    2西咸新区数字高程模型5 m
    3西咸新区地貌图1∶50000
    4西咸新区构造地质图1∶100000
    5工程地质钻孔280孔
    6工程地质剖面图1∶5000
    7多要素测井曲线167孔
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出版历程
  • 收稿日期:  2023-03-16
  • 修回日期:  2023-05-09
  • 网络出版日期:  2023-05-17
  • 刊出日期:  2023-06-19

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