Research on 3D geological modeling method based on multiple constraints
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RESEARCH ARTICLE
Research on 3D geological modeling method based on multiple constraints A case study of Huaying Mountain Kangyangju in Guang’an City Ming Hao 1 & Minghui Li 1 & Jianlong Zhang 1 & Yujie Liu 1 & Congjun Huang 1 & Fang Zhou 1 Received: 19 June 2020 / Accepted: 8 November 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In the past three-dimensional geological modeling process, only vertical geological data, i.e. borehole or profile drawn from borehole, was used as the modeling data source. However, the plane geological map either does not participate in the modeling at all, or only serves as a reference data in the modeling process, and its role is not fully played. In view of the appeal, this paper puts forward a plane section modeling method based on multiple constraints. This method combines the vertical geological data and the horizontal geological data to participate in the modeling work. The surface part of the 3D geological model constructed by this modeling method is completely consistent with the plane geological map. In addition, there are both vertical data source and horizontal data source, which greatly improves the accuracy of the model. In this paper, taking the kangyangju area of Huaying Mountain in Guang’an City as an example, using the plane section modeling method with multiple constraints, the threedimensional geological model construction of kangyangju area is carried out, which proves that the method is reliable and useful, and is worth popularizing. Keywords Drilling . Geological section . Geological map . 3D geological modelin
Introduction The main data sources of 3D geological modeling include: high-precision original data (such as drilling data, profile data, geological attribute data, etc.) from direct observation or exploration; indirect data with different precision and resolution such as geological map (geological boundary, fold, fault), geological structure map, actual material map, etc.(Apel 2006; S Brande et al. 2005; Zhu et al. 2012; Wu 2017; Song et al. 2019; Hao et al. 2019; Wu et al. 2005). In the past threedimensional geological modeling process, only vertical geological data is used, i.e. borehole or profile drawn by borehole as modeling data source(Velasco et al. 2013; He et al. 2007;
Communicated by: H. Babaie * Minghui Li [email protected] 1
Chengdu Geological Survey Center, China Geological Survey, Chengdu 610081, China
Hofmayer et al. 2019; Divya Priya and Dodagoudar 2018; Wang et al. 2017; Jia et al. 2017). In fact, most of the geological information contained in the geological map has been discarded in the process of modeling. In view of the appeal, this paper puts forward the method of plane section modeling based on multi constraint conditions. The biggest innovation of this method is that it combines the vertical geological data and horizontal geological data to participate in the modeling work. The vertical geological data mainly refers to the geological section, and the horizontal geological data refers to the plane
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