复杂断裂构造条件下城市地质三维建模方法研究

李林; 朱立峰; 李政国; 李珂; 李清

doi:10.19751/j.cnki.61-1149/p.2022.04.012

复杂断裂构造条件下城市地质三维建模方法研究

中国地质调查局西安地质调查中心, 陕西西安 710054

基金项目:

中国地质调查局项目“关中盆地城市群城市地质调查综合研究”、“西安多要素城市地质调查”(1212011220031、DD20189220)联合资助。

详细信息

作者简介:
李林(1976-)，男，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:
朱立峰(1973-)，男，高级工程师，长期从事水工环地质调查与研究工作。E-mail:397871699@qq.com

中图分类号: P56;O343.2;N945.12
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- 文章访问数: 53
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出版历程
- 收稿日期: 2021-12-08
- 修回日期: 2022-06-19
- 网络出版日期: 2023-01-09

Technology Research on the Constructing of Urban Geological 3D Model in Condition of Complex Faults

Xi'an Center of China Geological Survey, Xi'an 710054, Shaanxi, China

摘要

摘要: 三维地质建模技术是城市地质应用中的一个前沿课题。三维模型的准确程度对于工程分析、判断和决策影响极大。常规的三维地质建模方法通过大量简化地质条件来降低建模的复杂度，却无法精确描述断层等复杂而特殊的地质现象。笔者以构造条件复杂、断裂发育的沉积盆地为研究对象，对复杂断裂构造条件下城市地质三维建模中的关键技术和建模方法进行了探索性研究，形成了一套以地质构造框架为单元，以岩层出露线和岩层产状作为岩层的形态要素，钻孔数据作为层面的控制要素，形成一套由面成体的“构造镶嵌”地质建模的技术方法流程。关中盆地第四纪三维地质建模实例证明，该方法可以有效地提高复杂断裂条件下三维地质建模的效率与准确性，可为地质条件复杂地区的城市地质调查项目提供借鉴。
- 三维地质建模 /
- 城市地质 /
- 复杂断裂构造 /
- 关中盆地
Abstract: The 3D geological modeling for the complex geologic bodies is an essential technique of the urban geology. The accuracy of 3D model, for engineering analysis, judgment and decision has great influence. A new method for 3d geological modeling is introduced, which is based on the “structures mosaic” technique. The key technology and modeling process of urban geological 3D modeling on complex fault conditions are discussed. A case study of geological model in Guanzhong basin is presented, which confirmed that, this method can effectively improve the efficiency and accuracy of complex structures condition, and can provide reference for the areas of complex geological conditions in urban geological survey.
- 3D geological modeling /
- urban geology /
- complex geological faults /
- Guanzhong basin

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