CN-121999157-A - Method for generating three-dimensional solid geological model of mine

Abstract

The invention provides a method for generating a three-dimensional solid geological model of a mine. The method comprises the steps of firstly preprocessing multi-source mine geological data, performing discretization processing on the geological data by adopting a three-dimensional meshing method, generating a basic mine three-dimensional solid geological model of a mine by using modeling software, identifying special structures of cracks and faults in the geological data, performing special structure modeling to obtain a fault model, and refining the basic mine three-dimensional solid geological model by adopting the fault model to obtain the preliminary mine three-dimensional solid geological model. And thirdly, model precision iterative optimization and uncertainty quantization. And fourthly, dynamically adjusting the model in real time. The model generated by the method has the characteristics of low data processing complexity, high model precision and comprehensive and definite geological information, and the performance of the three-dimensional solid geological model of the mine is improved as a whole.

Inventors

• YANG HUI
• JI KANG
• YAN JUNSHENG
• LIU ZAIBIN
• Ju Chaohui
• LI PENG

Assignees

• 西安煤科透明地质科技有限公司

Dates

Publication Date

20260508

Application Date

20260121

Claims (6)

1. 1. The method for generating the three-dimensional solid geological model of the mine is characterized by comprising the following steps of: firstly, multi-source mine geological data acquisition and pretreatment: Collecting multi-source mine geological data, wherein the multi-source mine geological data comprises drilling data, geological sections, seismic exploration data, measurement data and remote sensing data, denoising, error correction and complementation by adopting a wavelet denoising model, processing abnormal values and filling data blank; step two, constructing a preliminary mine three-dimensional entity geological model: based on the multi-source mine geological data preprocessed in the step one, discretizing the geological data by adopting a three-dimensional meshing method, generating a basic mine three-dimensional solid geological model of the mine by using modeling software, identifying special structures of cracks and faults in the geological data, and modeling the special structures to obtain a fault model; Step three, model precision iterative optimization and uncertainty quantization: Comparing the actual drilling data and the field exploration data, performing accuracy verification on the preliminary mine three-dimensional entity geological model constructed in the second step, and adjusting model parameters by adopting an iterative optimization algorithm to obtain an optimized mine three-dimensional entity geological model; step four, real-time dynamic adjustment of the model: In the mine exploitation process, continuously monitoring and collecting multi-source mine geological data in real time, timely feeding new data back to the mine three-dimensional solid geological model after optimization in the step three, determining parameters of a dynamic adjustment model according to uncertainty quantification results obtained in the step three, and dynamically adjusting the existing mine three-dimensional solid geological model according to the multi-source mine geological data collected in real time through the dynamic adjustment model to obtain the mine three-dimensional solid geological model after self-adaption updating.
2. 2. The method for generating a three-dimensional solid geological model of a mine as claimed in claim 1, wherein in the first step, the wavelet denoising model is as follows: ; Wherein: representing the denoised signal; representing wavelet transform coefficients; Representing a wavelet basis function; Representing a scale level; representing translation parameters; Representing a time variable.
3. 3. The method for generating a three-dimensional solid geological model of a mine as claimed in claim 1, wherein in the first step, the data normalization and interpolation model is as follows: ; Wherein: Representing estimated points Is a value of (2); Representing an estimated point; Is a global average value, and is an average value of sample data; A sequence number representing a known data point; representing the number of known data points; is a known data point Is a value of (2); Represent the first A known data point; Is the first Kriging Jin Quanchong for each known data point.
4. 4. The method for generating a three-dimensional solid geological model of a mine as claimed in claim 1, wherein in the second step, the fault model is: ; Wherein: a normal vector representing a fault plane; And Representing points on both sides of the fault.
5. 5. The method for generating a three-dimensional solid geological model of a mine as claimed in claim 1, wherein in the third step, the uncertainty analysis model is: ; Wherein: Representing an output variable; respectively representing the input random variables; Representing the number of random variables entered.
6. 6. The method for generating a three-dimensional solid geological model of a mine as claimed in claim 1, wherein in the fourth step, the dynamic adjustment model is as follows: ; Wherein: model parameters representing the next moment; model parameters representing the current time; representing the current time; representing a learning rate; representing the gradient of the error function of the model parameter at the current moment.

Description

Method for generating three-dimensional solid geological model of mine Technical Field The invention belongs to the technical field of coal mine wells, relates to a geological model, and in particular relates to a method for generating a three-dimensional solid geological model of a mine. Background The construction of the mine geological model has important application value in aspects of mine exploration, exploitation planning, resource evaluation, safety management and the like, the traditional mine geological modeling method is mostly dependent on means of two-dimensional geological map, drilling data, manual analysis and the like, has the defects of low precision, non-visual information, difficulty in realizing dynamic update and the like, and along with the increase of mine exploitation depth and the gradual complicating of underground resources, the traditional two-dimensional geological model cannot meet the requirements of modern mine exploitation, so that the mine three-dimensional solid geological model gradually becomes the mainstream technology in mine geological modeling, and the mine three-dimensional solid geological model spatially expresses information such as underground ore bodies, geological structures and stratum distribution through integration and three-dimensional visualization of geological data, thereby providing a more visual and accurate underground space model. Currently, with the continuous progress of computer technology, geological exploration technology and data processing technology, three-dimensional geological modeling methods have been significantly developed, but the following drawbacks and disadvantages still remain. 1. The existing mine three-dimensional geological modeling method is high in data processing complexity, depends on a large amount of drilling data, geological sections, measurement data and the like, the data are often scattered in different sources, the form is complex, the data processing complexity is high due to non-uniform sources and formats, a large amount of manual intervention and preprocessing are often needed, and modeling time cost and risk of manual errors are increased. 2. The model precision is low, the traditional mine three-dimensional modeling method mainly relies on an interpolation algorithm to fill gaps among drilling holes, but because mine geological conditions are complex, especially irregular structures such as cracks and faults exist, the interpolation method cannot accurately reflect the real form of a geologic body under the conditions, so that the generated mine three-dimensional entity geological model is low in precision, and the structural characteristics of an underground ore body are difficult to truly reflect. 3. Geological information loss and uncertainty are that the existing modeling method usually cannot fully process the problems of data loss and uncertainty due to the fact that drilling data are scarce or incomplete in the exploration process of a mine, and particularly under the underground complex geological conditions, the generated three-dimensional model is unstable and reliable due to the fact that the geological information loss and uncertainty can cause, so that the application effect of the model is affected. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a method for generating a three-dimensional solid geological model of a mine, which solves the technical problem that the performance of the three-dimensional solid geological model of the mine in the prior art is to be further improved. In order to solve the technical problems, the invention is realized by adopting the following technical scheme. A method for generating a three-dimensional solid geological model of a mine comprises the following steps. Step one, multi-source mine geological data acquisition and pretreatment. The method comprises the steps of collecting multi-source mine geological data, wherein the multi-source mine geological data comprise drilling data, geological sections, seismic exploration data, measurement data and remote sensing data, denoising, error correction and complementation are carried out by adopting a wavelet denoising model, abnormal values are processed, the data blank is filled, data of different sources and different formats are converted into uniform standard formats by adopting a data standardization and interpolation model, and spatial interpolation is carried out on the drilling data to obtain preprocessed multi-source mine geological data. And secondly, constructing a preliminary mine three-dimensional entity geological model. Based on the multi-source mine geological data preprocessed in the step one, discretizing the geological data by adopting a three-dimensional meshing method, generating a basic mine three-dimensional solid geological model of the mine by using modeling software, identifying special structures of cracks and faults in the geological d