Construction method of coal seam three-dimensional model

Abstract

The invention discloses a construction method of a coal seam three-dimensional model, which comprises the following steps of: generating an earth surface model according to an earth surface three-dimensional contour line; calculating and obtaining a coal seam roof contour line according to the coal seam floor contour line and the coal seam thickness; obtaining a working face stopping line according to the working face data; selecting one point on a mining stopping line of the working face as a base point, selecting a reference line on the earth surface model as a reference line in the height direction, and obtaining relative three-dimensional coordinate points of the top plate and the bottom plate of the thick and hard key layer by utilizing three-dimensional coordinate points of the top plate and the bottom plate of the thick and hard key layer generated by the drilling histogram; generating a coal seam occurrence model on the basis of the surface model by utilizing the relative three-dimensional coordinate points of the coal seam roof contour line and the thick and hard key layer roof and floor; and according to the working face data, generating a working face model on the basisof the ground surface model and the coal seam stratification model to obtain a coal seam three-dimensional model. A worker can utilize the model to analyze the subsequent top coal caving property, themine pressure display rule and the like, and the working requirements are met.

Description

technical field [0001] The invention relates to the technical field of coal mine engineering, in particular to a method for constructing a three-dimensional model of a coal seam. Background technique [0002] Due to the complex geological structure of most coal mine engineering offices, it is necessary to obtain various stratum information before underground engineering construction to facilitate engineering construction. Usually, a large amount of geological information data, including surface topography, stratum interface and other information, can be obtained through geological exploration, surveying and other means, so as to provide effective support for construction. However, these data are often discrete and discontinuous, and it is difficult for geologists to use these data to analyze their distribution in geological bodies. [0003] In the existing technology, 3D models can be used to display the underground geological conditions, but the existing 3D model modeling ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for constructing a three-dimensional model of a coal seam to solve the problem that the existing three-dimensional model does not consider the spatial changes of the overlying strata and the surface conditions, and the staff cannot use the model to carry out subsequent top-coal caving and mining pressure display Analysis of laws and regulations, problems that cannot meet the needs of the work

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