地质断层三维建模的表达式方法

发布时间：2018-04-30 22:16

本文选题：地质断层 + 断层表达式　；参考：《地球信息科学学报》2016年10期

【摘要】：针对地质断层三维建模及可视化领域中现有技术存在的模拟断层局限性、插值困境等问题,本文提出了断层表达式方法建模方法。首先,以地质断层构造的形成机制为理论依据,分析构造断层表达式所需要运算对象和算子,构建表达式规则,并运用上下文无关文法对表达式规则进行形式化描述;然后,对断层原始勘探数据进行规范化,形成构建断层表达式所需要的断层二维数据表,从中提取构建断层表达式的运算对象集合和算子集合,形成断层表达式;最后,对断层表达式进行计算,形成断层地质体抽象模型,并结合相关勘探数据运用相关算法及图形库等工具进行三维地质建模及可视化。实验以包含多条断层的达连河地质体数据为基础进行实验验证,建模结果与真实地质情况符合。实验结果表明,断层表达式建模方法解决了现有技术的局限性问题,避免了对地层断裂区域的插值运算,从而解决了插值困境等问题。
[Abstract]:In view of the limitations of the existing technology in the 3D modeling and visualization of geological faults and the problems of interpolation difficulties, this paper proposes a method of modeling the fault expression method. Firstly, based on the formation mechanism of the geological fault structure, the operation objects and operators are analyzed and the expressions are constructed. Rules, and using context free grammar to formally describe the expression rules. Then, the original exploration data of the fault are normalized to form a two-dimensional data table of fault expressions, and the set of operation objects and operators set for the expression of the fault are extracted, and the expression of the fault is formed; finally, the fault table is made. The model forms the abstract model of fault geological body, and uses relevant algorithms and graphics library to make 3D geological modeling and visualization with related exploration data. Experiments are conducted on the basis of Dalian geological body data containing multiple faults, and the results of the modeling are consistent with the real geological conditions. Experimental results show that The fault expression modeling method solves the limitation of the existing technology, avoids the interpolation operation on the fracture area of the stratum, and solves the problem of interpolation difficulty.

【作者单位】：辽宁工程技术大学电子与信息工程学院;辽宁工程技术大学研究生院;
【基金】：国家科技支撑计划项目(2013BAH12F02) 辽宁省产业技术与开发专项基金(2069999)
【分类号】：P628

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