Mine gas geology three-dimensional visualization real-time inversion method and system

Abstract

The invention discloses a three-dimensional visualization real-time inversion method for mine gas geology. The method comprises the following steps: constructing a gas content cloud picture according to a mine three-dimensional gas content distribution model, constructing a gas pressure cloud picture according to a mine three-dimensional gas pressure distribution model, and constructing a gas emission amount cloud picture according to a gas emission amount distribution model; and fusing the mine three-dimensional gas content cloud picture, the gas pressure cloud picture and the gas emission quantity cloud picture into the mine three-dimensional geologic model to obtain a mine three-dimensional gas geologic model. A three-dimensional visualization real-time inversion system for mine gas geology comprises a mine three-dimensional gas geology modeling system, a mine geology data depth excavation system and a mine gas occurrence data depth excavation system. According to the mine gas geology three-dimensional visualization real-time inversion method and system, multi-source mine gas geology data such as mine geological exploration data, mining data and safety monitoring data are fused, and the mine gas geology model precision and the gas control efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of geological visualization, relates to a three-dimensional visualization real-time inversion method for mine gas geology, and also relates to a three-dimensional visualization real-time inversion system for mine gas geology. Background Art

[0002] As shallow coal resources gradually become depleted, mine production is gradually developing deeper. During the development of deep coal seams, due to the influence of burial depth and ground stress, mines gradually transform from gas mines to high-gas mines or outburst mines. Therefore, constructing accurate gas geological models has become a key task in the precise prevention and control of gas disasters. Currently, when conducting gas geological research in mines, two-dimensional gas geological maps are mainly drawn from mining engineering plan drawings. Gas occurrence and outburst patterns are often analyzed using methods such as field points in typical areas and data linear fitting. However, due to the small amount of data and inconsistencies in time and space, it is difficult to achieve the required accuracy of gas geological maps. This is especially true in areas with complex mine structures, where gas geological patterns are difficult to accurately visualize.

[0003] In summary, the existing technology has the problem that it is difficult to accurately visualize the gas geological laws in areas with complex mine structures. Summary of the Invention

[0004] The purpose of the present invention is to provide a real-time inversion method for three-dimensional visualization of mine gas geology, which solves the problem in the prior art that gas geological laws in complex mine structural areas are difficult to accurately visualize.

[0005] Another object of the present invention is to provide a three-dimensional visualization real-time inversion system for mine gas geology.

[0006] The technical solution adopted by the present invention is a three-dimensional visualization real-time inversion method for mine gas geology, comprising the following steps: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0007] The present invention is also characterized in that: The three-dimensional geological model of the mine is obtained through the following steps: Step A1: constructing a three-dimensional coal mine mining engineering model based on mine mining engineering information; Step A2: Modifying the three-dimensional coal mine mining engineering model based on coal seam geological and structural information to obtain a three-dimensional geological foundation model of the mine; Coal seam geological and structural information includes coal seam geological characteristics and coordinate parameters, and coal seam structural information; Step A3: Modifying the three-dimensional geological basic model of the mine based on the mine drilling data and the working face stress characteristic data to obtain a three-dimensional geological model of the mine; Mine drilling data includes geological exploration drilling data, water exploration and drainage drilling data, coal coordinate data found during gas extraction drilling, rock coordinate data, and water-rich area data.

[0008] Step A1 includes: Step A1.1: Extract the coordinate information of each point from the mine excavation engineering plan i (x, y); Step A1.2: Extract the coordinate information of each point from the mine tunnel design information i (x, z) or a i (y, z); Step A1.3, combine the coordinate information of each point a i (x, y), a i (x, z) or a i (y, z) draws the three-dimensional mining engineering model of the coal mine.

[0009] Step A2 includes: Step A2.1: Construct a three-dimensional model of the coal seam and its roof and floor based on the geological characteristics and coordinate parameters of the coal seam, and establish a coal seam structural model based on the coal seam structural information; Coal seam geological characteristics and coordinate parameters include the coordinates of each point in the coal seam, the lithology and thickness of the top and bottom plates, and the buried depth and thickness of the coal seam; Coal seam structural information includes fault characteristics, fold characteristics, and collapse column characteristics; Step A2.2: Based on the three-dimensional coal mining engineering model, the three-dimensional coal seam and roof and floor models and the coal seam structure model are combined to obtain a three-dimensional geological foundation model of the mine.

[0010] The three-dimensional gas content distribution model and the three-dimensional gas pressure distribution model of the mine are obtained through the following steps: Step B1, obtaining gas content, pressure measuring point coordinates, measuring point burial depth, coal thickness, and distance to the structure; Step B2: using principal component analysis to establish mathematical relationship models between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; Step B3: Draw a three-dimensional gas content distribution model and a three-dimensional gas pressure distribution model of the mine based on the mathematical relationship model between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology.

[0011] The gas emission distribution model is obtained through the following steps: Step C1, obtaining the coal mining speed, total coal mining volume, gas concentration at each point of the working face, tunnel air volume, coal seam structure type and impact range; Step C2: using principal component analysis to establish a mathematical relationship model between gas emission volume and coal seam depth, coal seam thickness, and coal seam structural distribution; Step C3: draw a gas emission distribution model based on a mathematical relationship model between gas emission and coal seam burial depth, coal seam thickness, and coal seam structural distribution.

[0012] Another technical solution adopted by the present invention is a mine gas geology three-dimensional visualization real-time inversion system, including a mine gas geology three-dimensional modeling system, the mine gas geology three-dimensional modeling system is communicatively connected to a mine geological data deep mining system and a mine gas occurrence data deep mining system; The mine three-dimensional gas geological modeling system is used to establish and update the mine three-dimensional gas geological model in real time; the mine geological data deep mining system is used to establish and update the mine three-dimensional geological model in real time; the mine gas occurrence data deep mining system is used to establish and update the mine three-dimensional gas content distribution model, mine three-dimensional gas pressure distribution model, and gas outburst distribution model in real time.

[0013] Another technical solution of the present invention is also characterized in that: The mine 3D gas geological modeling system includes a mine mining feature 3D real-time inversion module, a mine geology and structure 3D real-time inversion module, a mine gas geology 3D real-time inversion module, and a mine gas geology 3D visualization module.

[0014] The mine geological data deep mining system includes a mine geological feature database, which is connected to a mine mining engineering information input module, a coal seam geology and structure information input module, a mine drilling data input module, and a mine working face stress feature input module.

[0015] The mine gas storage data deep mining system includes a mine gas storage database, and the mine gas storage database is connected to the mine safety monitoring system data access module, the mine gas basic parameter input module, the mine gas content and pressure input module, and the mine mining data real-time input module.

[0016] The beneficial effects of the present invention are: the present invention constructs a three-dimensional coal mine mining engineering model based on mine mining engineering information, and on this basis constructs and corrects the three-dimensional mine geological model based on coal seam geological and structural information, mine drilling data and working face stress characteristic data, and further constructs a three-dimensional mine gas geological model based on gas basic parameters, gas content, pressure, mine geological parameters, mine working face mining data, safety monitoring data and coal seam geological data and updates it in real time, providing accurate technical support for working face safety production and gas control work, and ensuring the working face gas disaster control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flow chart of the mine gas geology three-dimensional visualization real-time inversion system of the present invention; Figure 2 It is a schematic diagram of the process of obtaining a three-dimensional geological model of a mine in the present invention; Figure 3 It is a schematic diagram of the process of obtaining the mine gas content distribution and pressure distribution model in the present invention; DETAILED DESCRIPTION The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Mine gas geology 3D visualization real-time inversion method, such as Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; like Figure 2 As shown in the figure, the three-dimensional geological model of the mine is obtained through the following steps: Step A1: constructing a three-dimensional coal mine mining engineering model based on mine mining engineering information; Step A1.1: Extract the coordinate information of each point from the mine excavation engineering plan i (x, y); Step A1.2: Extract the coordinate information of each point from the mine tunnel design information i (x, z) or a i (y, z); Step A1.3, combine the coordinate information of each point a i (x, y), a i (x, z) or a i (y, z) draws the three-dimensional mining engineering model of the coal mine; Step A2: Modifying the three-dimensional coal mine mining engineering model based on coal seam geological and structural information to obtain a three-dimensional geological foundation model of the mine; Coal seam geological and structural information includes coal seam geological characteristics and coordinate parameters, and coal seam structural information; Step A2.1: Construct a three-dimensional model of the coal seam and its roof and floor based on the geological characteristics and coordinate parameters of the coal seam, and establish a coal seam structural model based on the coal seam structural information; Coal seam geological characteristics and coordinate parameters include the coordinates of each point in the coal seam, the lithology and thickness of the top and bottom plates, and the buried depth and thickness of the coal seam; Coal seam structural information includes fault characteristics, fold characteristics, and collapse column characteristics; Step A2.2: Based on the three-dimensional coal mining engineering model, a three-dimensional coal seam and roof and floor slab model and a coal seam structural model are combined to obtain a three-dimensional mine geological foundation model; Step A3: Modifying the three-dimensional geological basic model of the mine based on the mine drilling data and the working face stress characteristic data to obtain a three-dimensional geological model of the mine; Mine drilling data includes geological exploration drilling data, water exploration and drainage drilling data, coal coordinate data and rock coordinate data found during gas extraction drilling, and water-rich area data; like Figure 3 As shown, the three-dimensional gas content distribution model and the three-dimensional gas pressure distribution model of the mine are obtained by the following steps: Step B1, obtaining gas content, pressure measuring point coordinates, measuring point burial depth, coal thickness, and distance to the structure; Step B2: using principal component analysis to establish mathematical relationship models between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; Step B3: Draw a three-dimensional gas content distribution model and a three-dimensional gas pressure distribution model of the mine based on the mathematical relationship model between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; like Figure 3 As shown in Figure 2, the gas emission distribution model is obtained through the following steps: Step C1, obtaining the coal mining speed, total coal mining volume, gas concentration at each point of the working face, tunnel air volume, coal seam structure type and impact range; Step C2: using principal component analysis to establish a mathematical relationship model between gas emission volume and coal seam depth, coal seam thickness, and coal seam structural distribution; Step C3: drawing a gas emission distribution model based on a mathematical relationship model between gas emission and coal seam depth, coal seam thickness, and coal seam structural distribution; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0019] The mine gas geology 3D visualization real-time inversion system includes a mine 3D gas geology modeling system, which is connected to a mine geological data deep mining system and a mine gas occurrence data deep mining system; The mine 3D gas geological modeling system is used to establish and update the mine 3D gas geological model in real time. The mine geological data deep mining system is used to establish and update the mine 3D geological model in real time. The mine gas occurrence data deep mining system is used to establish and update the mine 3D gas content distribution model, mine 3D gas pressure distribution model, and gas emission distribution model in real time. The mine three-dimensional gas geological modeling system includes a mine mining feature three-dimensional real-time inversion module, a mine geology and structure three-dimensional real-time inversion module, a mine gas geology three-dimensional real-time inversion module, and a mine gas geology three-dimensional visualization module; the mine geological data deep mining system includes a mine geological feature database, and the mine geological feature database is communicated with a mine mining engineering information input module, a coal seam geology and structure information input module, a mine drilling data input module, and a mine working face stress feature input module; the mine gas storage data deep mining system includes a mine gas storage database, and the mine gas storage database is communicated with a mine safety monitoring system data access module, a mine gas basic parameter input module, a mine gas content and pressure input module, and a mine mining data real-time input module.

[0020] The present invention can integrate multi-source mine gas geological data such as mine geological exploration data, mining data, and safety monitoring data, thereby improving the accuracy of mine gas geological models and the efficiency of gas control. By real-time analysis of various data such as mine mining engineering information, coal seam and geological structure information, safety monitoring information, and working face mining information, the three-dimensional mine gas geological model is constructed and updated in real time, providing accurate data support for working face gas control work and ensuring the effectiveness of working face gas disaster control.

[0021] The mine geological data deep mining system of the present invention is used to deeply mine geological information such as real-time mine mining projects, coal seams and geological structures, drilling data, working face stress distribution, and form a database, providing basic data for the mine three-dimensional gas geological modeling system. The mine gas storage data deep mining system is used to deeply mine gas storage data such as mine safety monitoring, basic gas parameters, mine mining, and form a database in real time, providing basic data for the mine gas three-dimensional geological modeling system. The mine three-dimensional gas geological modeling system is used to call the mine gas geological feature database and the mine gas storage database established by the mine geological data deep mining system and the mine gas storage data deep mining system. It performs real-time inversion of mine mining characteristics, geological and structural characteristics, and gas storage characteristics, and performs three-dimensional gas geological and dynamic field modeling and visualization.

[0022] The three-dimensional real-time inversion module of mine mining characteristics in the three-dimensional mine gas geological modeling system of the present invention directly calls the mine mining engineering data in the mine geological characteristics database, and solves and generates three-dimensional mine mining distribution data in real time, and performs secondary update and correction through mine drilling data. The relevant data resolution is one meter. The three-dimensional real-time inversion module of mine geology and structure directly calls the coal seam geological and structural parameters in the mine geological characteristics database, and solves and generates three-dimensional distribution data of coal seams and geological structures in real time. The three-dimensional real-time inversion module of mine gas geology directly calls the data in the mine gas storage database, performs gas storage characteristic inversion, and preliminarily generates three-dimensional data of gas content storage and gas emission distribution characteristics, and secondarily calls the coal seam geological and structural data in the mine geological characteristics database for secondary inversion, and corrects the gas geological data to obtain three-dimensional distribution data of gas content, pressure and emission. The mine gas geology 3D visualization module is used to call the mine mining characteristics 3D real-time inversion module, the mine geology and structure 3D real-time inversion module, and the mine gas geology 3D real-time inversion module to generate the 3D mine mining distribution data, coal seam and geological structure 3D distribution data, and gas occurrence and outburst 3D distribution data to generate the mine gas 3D geological and dynamic field model in real time.

[0023] In the mine geological data deep mining system of the present invention, the mine excavation engineering information entry module is used to enter relevant parameters such as mine excavation layout information, tunnel layout information, coal pillar information, hydrogeological information, etc. in real time, and enter the relevant information into the mine geological characteristics database. The coal seam geological and structural information entry module is used to enter relevant information such as coal seam thickness, strike, inclination and geological structures such as folds, faults, collapse columns, joints, etc. in real time, and enter the relevant information into the mine geological characteristics database. The mine drilling data entry module is used to enter relevant data such as geological exploration drilling, hydrological drilling, gas drilling, etc. in real time, including borehole coordinates, drilling distance, coal and rock location, etc., and enter the relevant information into the mine geological characteristics database. The mine working face stress characteristic entry module is used to enter the support coordinates and stress data of each production working face and excavation working face in real time, and enter the relevant information into the mine geological characteristics database. The mine geological characteristics database is used to store and manage the relevant parameters entered into the mine mining engineering information entry module, coal seam geology and structure information entry module, mine drilling data entry module, and mine working face stress characteristics entry module, and to conduct in-depth mining and analysis of mine geological information.

[0024] In the mine gas occurrence data deep mining system of the present invention, the mine safety monitoring system data access module is used to access the mine safety monitoring system, and enter the gas concentration, air volume and other data at different locations monitored by the mine safety monitoring system into the mine gas occurrence database in real time. The mine gas basic parameter entry module is used to enter the basic gas parameters of each working face of the mine, and enter the relevant information into the mine gas occurrence database. The mine gas content and pressure entry module is used to enter the gas content and pressure data of the mine test in real time, and enter the measurement point location parameters, measurement point gas content, measurement point gas pressure and other information into the mine gas occurrence database. The mine mining data real-time entry module is used to enter the data such as the coal mining speed of the mine production working face and the coal mining machine running distance in real time, and enter the relevant information into the mine gas occurrence database. The mine gas occurrence database is used to store and manage the relevant parameters entered into the mine safety monitoring system data access module, mine gas basic parameter entry module, mine gas content and pressure entry module, and mine mining data real-time entry module, and to conduct in-depth mining and analysis of mine gas geological information.

[0025] Example 1 This embodiment proposes a real-time inversion method for three-dimensional visualization of mine gas geology. Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0026] Example 2 This embodiment proposes a real-time inversion method for three-dimensional visualization of mine gas geology. Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; The three-dimensional geological model of the mine is obtained through the following steps: Step A1: constructing a three-dimensional coal mine mining engineering model based on mine mining engineering information; Step A2: Modifying the three-dimensional coal mine mining engineering model based on coal seam geological and structural information to obtain a three-dimensional geological foundation model of the mine; Coal seam geological and structural information includes coal seam geological characteristics and coordinate parameters, and coal seam structural information; Step A3: Modifying the three-dimensional geological basic model of the mine based on the mine drilling data and the working face stress characteristic data to obtain a three-dimensional geological model of the mine; Mine drilling data includes geological exploration drilling data, water exploration and drainage drilling data, coal coordinate data and rock coordinate data found during gas extraction drilling, and water-rich area data; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0027] Example 3 This embodiment proposes a real-time inversion method for three-dimensional visualization of mine gas geology. Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; The three-dimensional geological model of the mine is obtained through the following steps: Step A1: constructing a three-dimensional coal mine mining engineering model based on mine mining engineering information; Step A1.1: Extract the coordinate information of each point from the mine excavation engineering plan i (x, y); Step A1.2: Extract the coordinate information of each point from the mine tunnel design information i (x, z) or a i (y, z); Step A1.3, combine the coordinate information of each point a i (x, y), a i (x, z) or a i (y, z) draws the three-dimensional mining engineering model of the coal mine; Step A2: Modifying the three-dimensional coal mine mining engineering model based on coal seam geological and structural information to obtain a three-dimensional geological foundation model of the mine; Coal seam geological and structural information includes coal seam geological characteristics and coordinate parameters, and coal seam structural information; Step A2.1: Construct a three-dimensional model of the coal seam and its roof and floor based on the geological characteristics and coordinate parameters of the coal seam, and establish a coal seam structural model based on the coal seam structural information; Coal seam geological characteristics and coordinate parameters include the coordinates of each point in the coal seam, the lithology and thickness of the top and bottom plates, and the buried depth and thickness of the coal seam; Coal seam structural information includes fault characteristics, fold characteristics, and collapse column characteristics; Step A2.2: Based on the three-dimensional coal mining engineering model, a three-dimensional coal seam and roof and floor slab model and a coal seam structural model are combined to obtain a three-dimensional mine geological foundation model; Step A3: Modifying the three-dimensional geological basic model of the mine based on the mine drilling data and the working face stress characteristic data to obtain a three-dimensional geological model of the mine; Mine drilling data includes geological exploration drilling data, water exploration and drainage drilling data, coal coordinate data and rock coordinate data found during gas extraction drilling, and water-rich area data; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0028] Example 4 This embodiment proposes a real-time inversion method for three-dimensional visualization of mine gas geology. Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; The three-dimensional gas content distribution model and the three-dimensional gas pressure distribution model of the mine are obtained through the following steps: Step B1, obtaining gas content, pressure measuring point coordinates, measuring point burial depth, coal thickness, and distance to the structure; Step B2: using principal component analysis to establish mathematical relationship models between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; Step B3: Draw a three-dimensional gas content distribution model and a three-dimensional gas pressure distribution model of the mine based on the mathematical relationship model between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0029] Example 5 This embodiment proposes a real-time inversion method for three-dimensional visualization of mine gas geology. Figure 1 As shown, the following steps are included: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; The gas emission distribution model is obtained through the following steps: Step C1, obtaining the coal mining speed, total coal mining volume, gas concentration at each point of the working face, tunnel air volume, coal seam structure type and impact range; Step C2: using principal component analysis to establish a mathematical relationship model between gas emission volume and coal seam depth, coal seam thickness, and coal seam structural distribution; Step C3: drawing a gas emission distribution model based on a mathematical relationship model between gas emission and coal seam depth, coal seam thickness, and coal seam structural distribution; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

[0030] Example 6 This embodiment proposes a mine gas geology 3D visualization real-time inversion system, including a mine 3D gas geology modeling system, which is communicatively connected to a mine geological data deep mining system and a mine gas occurrence data deep mining system; The mine three-dimensional gas geological modeling system is used to establish and update the mine three-dimensional gas geological model in real time; the mine geological data deep mining system is used to establish and update the mine three-dimensional geological model in real time; the mine gas occurrence data deep mining system is used to establish and update the mine three-dimensional gas content distribution model, mine three-dimensional gas pressure distribution model, and gas outburst distribution model in real time.

[0031] Example 7 This embodiment proposes a mine gas geology 3D visualization real-time inversion system, including a mine 3D gas geology modeling system, which is communicatively connected to a mine geological data deep mining system and a mine gas occurrence data deep mining system; The mine 3D gas geological modeling system is used to establish and update the mine 3D gas geological model in real time. The mine geological data deep mining system is used to establish and update the mine 3D geological model in real time. The mine gas occurrence data deep mining system is used to establish and update the mine 3D gas content distribution model, mine 3D gas pressure distribution model, and gas emission distribution model in real time. The mine three-dimensional gas geological modeling system includes a mine mining feature three-dimensional real-time inversion module, a mine geology and structure three-dimensional real-time inversion module, a mine gas geology three-dimensional real-time inversion module, and a mine gas geology three-dimensional visualization module; the mine geological data deep mining system includes a mine geological feature database, and the mine geological feature database is communicated with a mine mining engineering information input module, a coal seam geology and structure information input module, a mine drilling data input module, and a mine working face stress feature input module; the mine gas storage data deep mining system includes a mine gas storage database, and the mine gas storage database is communicated with a mine safety monitoring system data access module, a mine gas basic parameter input module, a mine gas content and pressure input module, and a mine mining data real-time input module.

Claims

1. A three-dimensional visualization real-time inversion method for mine gas geology, characterized by: The following steps are involved: Step 1: Obtain a three-dimensional mine gas content distribution model, a three-dimensional mine gas pressure distribution model, a gas emission distribution model, and a three-dimensional mine geological model; Step 2: constructing a gas content cloud map based on the three-dimensional gas content distribution model of the mine, constructing a gas pressure cloud map based on the three-dimensional gas pressure distribution model of the mine, and constructing a gas emission cloud map based on the gas emission distribution model; Step 3: Integrate the three-dimensional gas content cloud map, gas pressure cloud map and gas emission cloud map into the three-dimensional geological model of the mine to obtain the three-dimensional gas geological model of the mine. Repeat steps 1 to 3 to update the three-dimensional gas geological model of the mine in real time.

2. The method for real-time three-dimensional visualization of mine gas geology according to claim 1, characterized in that: The three-dimensional geological model of the mine is obtained by the following steps: Step A1: constructing a three-dimensional coal mine mining engineering model based on mine mining engineering information; Step A2: Modifying the three-dimensional coal mine mining engineering model based on coal seam geological and structural information to obtain a three-dimensional geological foundation model of the mine; The coal seam geological and structural information includes coal seam geological characteristics and coordinate parameters, and coal seam structural information; Step A3: Modifying the three-dimensional geological basic model of the mine based on the mine drilling data and the working face stress characteristic data to obtain a three-dimensional geological model of the mine; The mine drilling data includes geological exploration drilling data, water exploration and drainage drilling data, coal coordinate data found during gas extraction drilling, rock coordinate data found, and water-rich area data.

3. The method for real-time visualization of mine gas geology inversion according to claim 2, characterized in that: The step A1 comprises: Step A1.1: Extract the coordinate information of each point from the mine excavation engineering plan i (x, y); Step A1.2: Extract the coordinate information of each point from the mine tunnel design information i (x, z) or a i (y, z); Step A1.3, combine the coordinate information of each point a i (x, y), a i (x, z) or a i (y, z) draws the three-dimensional mining engineering model of the coal mine.

4. The method for real-time visualization of mine gas geology inversion in three dimensions according to claim 2, characterized in that: The step A2 comprises: Step A2.1: Construct a three-dimensional model of the coal seam and its roof and floor based on the geological characteristics and coordinate parameters of the coal seam, and establish a coal seam structural model based on the coal seam structural information; The coal seam geological characteristics and coordinate parameters include the coordinates of each point in the coal seam, the lithology and thickness of the top and bottom plates, and the buried depth and thickness of the coal seam; The coal seam structural information includes fault characteristics, fold characteristics, and collapse column characteristics; Step A2.2: Based on the three-dimensional coal mining engineering model, the three-dimensional coal seam and roof and floor models and the coal seam structure model are combined to obtain a three-dimensional geological foundation model of the mine.

5. The method for real-time inversion of mine gas geology 3D visualization according to claim 1, characterized in that: The three-dimensional gas content distribution model and the three-dimensional gas pressure distribution model of the mine are obtained by the following steps: Step B1, obtaining gas content, pressure measuring point coordinates, measuring point burial depth, coal thickness, and distance to the structure; Step B2: using principal component analysis to establish mathematical relationship models between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology; Step B3: Draw a three-dimensional gas content distribution model and a three-dimensional gas pressure distribution model of the mine based on the mathematical relationship model between gas content and gas pressure and coal seam depth, coal seam thickness, coal seam structural distribution, and roof and floor lithology.

6. The method for real-time three-dimensional visualization of mine gas geology according to claim 1, characterized in that: The gas emission distribution model is obtained by the following steps: Step C1, obtaining the coal mining speed, total coal mining volume, gas concentration at each point of the working face, tunnel air volume, coal seam structure type and impact range; Step C2: using principal component analysis to establish a mathematical relationship model between gas emission volume and coal seam depth, coal seam thickness, and coal seam structural distribution; Step C3: draw a gas emission distribution model based on a mathematical relationship model between gas emission and coal seam burial depth, coal seam thickness, and coal seam structural distribution.

7. Mine gas geology 3D visualization real-time inversion system, characterized by: The method for real-time inversion of three-dimensional visualization of mine gas geology according to claim 1 comprises a three-dimensional mine gas geological modeling system, wherein the three-dimensional mine gas geological modeling system is communicatively connected to a deep mining system for mine geological data and a deep mining system for mine gas occurrence data; The three-dimensional mine gas geological modeling system is used for establishing and updating the three-dimensional mine gas geological model in real time; The mine geological data deep mining system is used to establish and update the three-dimensional geological model of the mine in real time; The mine gas occurrence data deep mining system is used to establish and update the mine three-dimensional gas content distribution model, mine three-dimensional gas pressure distribution model, and gas emission distribution model in real time.

8. The mine gas geology three-dimensional visualization real-time inversion system according to claim 7 is characterized in that: The three-dimensional mine gas geological modeling system includes a three-dimensional real-time inversion module for mine mining characteristics, a three-dimensional real-time inversion module for mine geology and structure, a three-dimensional real-time inversion module for mine gas geology, and a three-dimensional visualization module for mine gas geology.

9. The mine gas geology three-dimensional visualization real-time inversion system according to claim 7, characterized in that: The mine geological data deep mining system includes a mine geological feature database, which is communicatively connected to a mine mining engineering information input module, a coal seam geology and structure information input module, a mine drilling data input module, and a mine working face stress feature input module.

10. The mine gas geology three-dimensional visualization real-time inversion system according to claim 7, characterized in that: The mine gas storage data deep mining system includes a mine gas storage database, which is communicatively connected to a mine safety monitoring system data access module, a mine gas basic parameter input module, a mine gas content and pressure input module, and a mine mining data real-time input module.

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