面向铁路三维工程地质模型的自适应虚拟钻孔生成方法
A Self-Adaptive Virtual Borehole Generation Method for Railway 3D Engineering Geological Model
刘孙瑜 1朱庆 1吴浩宇 2曾浩炜 3张骏骁3
作者信息
- 1. 西南交通大学地球科学与环境工程学院,四川成都,611756
- 2. 成都市勘察测绘研究院,四川成都,610000
- 3. 齐鲁空天信息研究院,山东济南,250100
- 折叠
摘要
本文提出一种线性空间增强的自适应虚拟钻孔建模方法.该方法面向工程地质平面图、剖面数据和原始钻孔数据的综合应用,基于铁路中线构建二维线性空间向三维空间转换方程,实现虚拟钻孔与多源数据的空间映射,解决了虚拟钻孔布设受到原始钻孔资料空间分布约束的问题;同时设计钻孔间距与地层层数的匹配规则,构建规则阈值约束的自适应分布模型,提取关键特征插值融合形成三维虚拟钻孔序列.典型实验证明本文方法能可靠处理长带状分布的多源数据、精确表达复杂的三维地质结构.
Abstract
This paper proposes a linear space enhanced self-adaptive virtual borehole modeling method. This method which is oriented to the integrated comprehensive application of engineering geological plan,section data and original bore-hole data,and to realize the spatial mapping between virtual borehole and multi-source data based on conversion equation from two-dimensional linear space to three-dimensional space built by railway center line,and to solve the problem that vir-tual borehole layout is constrained by the spatial distribution of the original borehole data. Meanwhile,it designs the match-ing rules for the spacing of boreholes and the number of strati-graphic layers to construct a self-adaptive distribution model with rule threshold constraints. Then,it extracts key features and form the three-dimensional virtual borehole sequence by interpolation fusion. Typical experiments prove that the pro-posed method can process multi-source data with long zonal distribution reliably and express complex three-dimensional geological structures accurately.
关键词
三维地质建模/虚拟钻孔/自适应分布/多源数据融合Key words
3D geological modeling/virtual borehole/self-adaptive distribution/muti-source data integration引用本文复制引用
基金项目
国家自然科学基金(42230102)
国家自然科学基金(42001336)
出版年
2024
NETL
NSTL
万方数据