Mountain three-dimensional geologic body modeling method and comprehensive geological information demonstration system

Abstract

The invention relates to a mountain three-dimensional geologic body modeling method and a comprehensive geological information demonstration system.The method includes the steps that firstly, multivariate data in a mountain area are searched for; secondly, a point model of a three-dimensional geological model is obtained according to precision; thirdly, a facial model and a body model are built, a triangular prism model can be changed to be a pyramid model, an irregular tetrahedron model and a planar model, and quite high adaptivity is achieved; finally, comprehensive three-dimensional demonstration is conducted in combination with the comprehensive geological information of a researched area and the built three-dimensional geological model.The mountain three-dimensional geologic body modeling method and the comprehensive geological information demonstration system are high in modeling speed, high in rendering speed and suitable for geological three-dimensional modeling; separate display of the three-dimensional geological model and the comprehensive geological information.The method and system can be applied to mining area modeling and regional geological modeling; multiple types of geophysical data modeling including seismic exploration and the like are supported, and the method and system can be applied to geological and earth physics experiment teaching and practice and can also be applied to comparison experiment research of multiple types of geophysical methods.

Description

Technical field: [0001] The invention relates to a three-dimensional geological body modeling and demonstration. It is especially suitable for the rapid construction of geological body models in mountainous environments and the three-dimensional presentation of comprehensive geoscience information including geology, drilling, and earthquakes. Background technique: [0002] The traditional method of expressing geological exploration results mainly uses two-dimensional maps such as geological maps and geological profiles, and it is difficult to express and demonstrate geological bodies intuitively and vividly in three dimensions, which brings many difficulties to geologists. With the continuous deepening of geological exploration, people's need to understand geological bodies is increasing. The three-dimensional modeling and three-dimensional demonstration of geological bodies through computer visualization technology has become one of the hotspots and difficulties in the fiel...

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Problems solved by technology

The data sources used in the modeling method are high-density electrical data and magnetotelluric sounding data, which cannot achieve the modeling of geological body data obtained through seismic exploration and other geophysical methods and geological methods to ensure geological requirements

In addition, the above-mentioned patents all use a tetrahedral model, and do not adopt a volume model structure that is suitable for the complexity of the geological body in the study area. Although it can represent complex three-dimensional geological bodies, the large amount of model data is not conducive to rapid implementation. The interactive design, adjustment and display of the model is difficult to meet the rapid modeling requirements of 3D geological bodies in mountainous areas

In addition, in terms of the display of models and comprehensive geoscience information, the above-mentioned patents only support the demonstration of geological body models, and in essence, geological, drilling, seismic and other geophysical data are all related, and relying on one or a few data sources for modeling There are multiple solutions. In order to obtain a more reliable geological body model, and to support the comparative study of various geophysical experiment methods and geophysical instrument comparison research, a multivariate geological information based on geological, drilling, and various geophysical data is required. Modeling method and demonstration system, there is no such technology at present

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