CN115564905A

CN115564905A - Geological modeling method and device for strip mine

Info

Publication number: CN115564905A
Application number: CN202211163609.1A
Authority: CN
Inventors: 赵晗博; 韩科明; 孙凯华; 贾林刚; 蓝航; 张鹏; 韩震; 李学良
Original assignee: Beijing Research Institute Of Land Remediation And Ecological Restoration Of China Coal Science And Engineering Group Co ltd; China Coal Science And Technology Co ltd
Current assignee: Beijing Research Institute Of Land Remediation And Ecological Restoration Of China Coal Science And Engineering Group Co ltd; China Coal Science And Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-03

Abstract

The application provides a strip mine geological modeling method and device, and relates to the technical field of strip mine modeling. The method comprises the following steps: establishing a three-dimensional earth surface entity model according to a topographic map and a remote sensing image map of a research area; establishing a full-stratum entity model according to original drilling data of a research area; extracting at least one lane line file from the topographic map, and establishing a lane entity model according to the at least one lane line file; extracting at least one fault file from an exploratory line profile of a research area, and establishing a fault entity model according to the at least one fault file; and combining the three-dimensional earth surface solid model, the full-stratum solid model, the roadway solid model and the fault solid model to obtain the three-dimensional geological model of the research area. The scheme not only can realize the construction of the three-dimensional geological model, but also promotes the richness of the model and the precision of the model due to the combination of the fault layer solid model and the roadway solid model.

Description

Geological modeling method and device for strip mine

Technical Field

The application relates to the technical field of strip mine modeling, in particular to a strip mine geological modeling method and device.

Background

Under the background of high-speed development of computer technology, three-dimensional expression of geological structures and geologic body forms is realized through a computer algorithm, and the method is effectively applied to the field of opencast coal mines. However, the three-dimensional surface mine geological model obtained in the related art is in need of improvement in richness and accuracy.

Disclosure of Invention

In order to solve the problems, the application provides a strip mine geological modeling method and a strip mine geological modeling device.

According to a first aspect of the application, there is provided a strip mine geological modeling method comprising:

establishing a three-dimensional earth surface entity model according to a topographic map and a remote sensing image map of a research area;

establishing a full-stratum entity model according to the original drilling data of the research area;

extracting at least one lane line file from the topographic map, and establishing a lane entity model according to the at least one lane line file;

extracting at least one fault file from an exploratory line profile of the research region, and establishing a fault entity model according to the at least one fault file;

and combining the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model to obtain a three-dimensional geological model of the research area.

In some embodiments of the present application, the building a three-dimensional surface solid model according to the topographic map and the remote sensing image map of the research area includes:

extracting contour line files in the topographic map, and generating a surface DTM model according to the contour line files;

and carrying out image fitting on the remote sensing image map and the surface DTM model to obtain the full-stratum entity model.

As a possible implementation, the building a full stratigraphic solid model from the raw borehole data of the study area includes:

performing interpolation calculation of a distance power inverse ratio method and a Kriging method on the original drilling data to obtain virtual drilling data;

performing error checking on the original drilling data and the virtual drilling data;

and establishing a full-stratum entity model according to the checked drilling data.

The original drilling data at least comprises an engineering number, a hole opening coordinate, a maximum hole depth, an exploration line number, hole opening/closing time, a depth, an azimuth angle, an inclination angle, a layer thickness, lithology and a stratum name of a lithology code.

In some embodiments of the present application, said building a lane entity model from said at least one lane line file comprises:

converting each lane line file into a corresponding lane block file;

and merging all the tunnel body files to obtain the entity model of the tunnel.

In some embodiments of the present application, said building a fault solid model from said at least one fault file comprises:

converting each fault file into a corresponding fault block file;

and combining all fault block files to obtain the fault entity model.

According to a second aspect of the present application, there is provided a strip mine geological modeling apparatus, comprising:

the first establishing module is used for establishing a three-dimensional earth surface entity model according to a topographic map and a remote sensing image map of a research area;

the second establishing module is used for establishing a full-stratum entity model according to the original drilling data of the research area;

the third establishing module is used for extracting at least one lane line file from the topographic map and establishing a lane entity model according to the at least one lane line file;

a fourth building module for extracting at least one fault file from the exploratory line profile of the research area and building a fault entity model according to the at least one fault file;

and the merging module is used for merging the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model to obtain the three-dimensional geological model of the research area.

In some embodiments of the present application, the first establishing module is specifically configured to:

and carrying out image fitting on the remote sensing image map and the surface DTM model to obtain the all-terrain solid model.

As a possible implementation manner, the second establishing module is specifically configured to:

performing interpolation calculation on the original drilling data by using a distance power inverse ratio method and a Kriging method to obtain virtual drilling data;

In some embodiments of the present application, the third establishing module is specifically configured to:

converting each lane line file into a corresponding lane block file;

and merging all the tunnel body files to obtain the entity model of the tunnel.

In some embodiments of the present application, the fourth establishing module is specifically configured to:

converting each fault file into a corresponding fault block file;

and combining all fault block files to obtain the fault entity model.

According to a third aspect of the present application, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of the first aspect when executing the program.

According to a fourth aspect of the present application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method of the first aspect described above.

According to the technical scheme, a three-dimensional earth surface entity model is established according to a topographic map and a remote sensing image map of a research area, a full-stratum entity model is established according to original drilling data of the research area, at least one roadway line file and at least one fault file are extracted from the topographic map and an exploratory line profile map respectively so as to establish the roadway entity model and the fault entity model, and the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model are combined to obtain the three-dimensional geological model of the research area. The scheme can realize the construction of the three-dimensional geological model, and also improves the richness of the model and the precision of the model due to the combination of the fault layer solid model and the roadway solid model.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flow chart of a surface mine geological modeling method provided by an embodiment of the present application;

FIG. 2 is an exemplary diagram of a surface DTM model in an embodiment of the present application;

fig. 3 is an exemplary diagram of a roadway entity model in an embodiment of the present application;

FIG. 4 is an exemplary diagram of a three-dimensional geological module in an embodiment of the present application;

fig. 5 is a structural block diagram of a strip mine geological modeling apparatus according to an embodiment of the present disclosure;

fig. 6 is a block diagram of an electronic device according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application.

It should be noted that, in the background of the rapid development of computer technology, three-dimensional expression of geological structure and geologic body morphology is realized through a computer algorithm, and the method is effectively applied to the field of opencut coal mines. However, the three-dimensional surface mine geological model obtained in the related art is to be improved in terms of richness and accuracy.

Fig. 1 is a flowchart of a surface mine geological modeling method according to an embodiment of the present disclosure. It should be noted that the surface mine geological modeling method according to the embodiment of the present application may be applied to the surface mine geological modeling apparatus according to the embodiment of the present application, and the surface mine geological modeling apparatus according to the embodiment of the present application may be configured in an electronic device.

As shown in fig. 1, the surface mine geological modeling method of the embodiment of the application may include the following steps:

and 101, establishing a three-dimensional earth surface entity model according to a topographic map and a remote sensing image map of a research area.

In some embodiments of the present application, the region of interest may be a predetermined area in a opencast coal mine, and the topography of the region of interest may be a topographic map in dxt format on a scale, such as a topographic map in dxf format of region 1. The remote sensing image of the research area can be a Tiff format, and is downloaded in relevant software based on the coordinate range corresponding to the research area by using a cutting tool. The implementation process of step 101 may be implemented by relevant three-dimensional mining engineering software equipped in the electronic device, for example, by corresponding functions in 3D Mine software.

As an embodiment, the implementation process of building a three-dimensional surface solid model according to the topographic map and the remote sensing image map of the research area may include: extracting contour line files in the topographic map, and generating a surface DTM model according to the contour line files; and (5) carrying out image fitting on the remote sensing image map and the DTM model to obtain a full-stratum entity model. If the contour file has the elevation attribute, the contour file is subjected to elevation endowing through attribute calculation, if the contour file does not have the elevation attribute, contour endowing can be carried out through a line endowing elevation tool, then a surface DTM model is generated according to the elevations of all contours in the contour file, the elevation distribution characteristics of the surface model are expressed through a color rendering tool, and the generated surface DTM model is shown in FIG. 2. In addition, coordinate correction can be carried out on the DTM model through a four-point coordinate conversion tool, so that the model is built under a unified coordinate system, wherein the remote sensing image is determined based on the corrected coordinate range. When the remote sensing image map is in image fitting with the surface DTM model, the remote sensing image map can be fitted with the surface DTM model by utilizing the functional relation between the homologous points according to the homologous points with obvious characteristics, and the full-stratum entity model is obtained.

Step 102, establishing a full-stratum entity model according to the original drilling data of the research area.

In some embodiments of the present application, the raw drilling data of the research area may be analyzed and extracted by referring to the 1. The related engineering software may be 3D Mine software.

Wherein the raw borehole data may include at least an engineering number, open hole coordinates, maximum hole depth, survey line number, open/final hole time, depth, azimuth, dip, layer thickness, lithology code, and formation name. If the electronic equipment utilizes the 3D Mine software equipped by the electronic equipment to construct the model, related workers can write the project number, the hole opening coordinate, the maximum hole depth, the exploration line number and the hole opening/ending time into the drilling positioning table, pour the depth, the azimuth angle and the inclination angle into the inclination measuring table, pour the layer thickness, the lithology code and the formation name into the lithology table, upload the drilling positioning table, the inclination measuring table and the lithology table to the electronic equipment, and the electronic equipment imports the drilling positioning table, the inclination measuring table and the lithology table into a database of the 3D Mine software so as to utilize the 3D Mine software to construct the full-formation entity model.

As one embodiment, the implementation process of building a full stratigraphic solid model from the raw borehole data of the study area includes: performing interpolation calculation of a distance power inverse ratio method and a Kriging method on original drilling data to obtain virtual drilling data; carrying out error checking on the original drilling data and the virtual drilling data; and establishing a full-stratum entity model according to the checked drilling data. The drilling data are checked, and the similar stratums are merged, so that a full-stratum entity model with better visualization degree is established. In addition, the stratum model can be selected for entity optimization, whether the model has an open edge, a self-intersection edge and an invalid edge or not is checked through an entity verification tool, and if the model has the open edge, the self-intersection edge and the invalid edge, the model is deleted, so that the optimized stratum entity model is obtained.

And 103, extracting at least one lane line file from the topographic map, and establishing a lane entity model according to the at least one lane line file.

In some embodiments of the present application, lane line files refer to files made up of lane lines contained in a topographical map. The step can also be realized by the electronic equipment by using engineering software such as a 3D Mine.

As an embodiment, the implementation process of building the lane entity model according to the at least one lane line file may include: converting each lane line file into a corresponding lane block file; and merging all the tunnel body files to obtain a tunnel entity model. The obtained entity model of the roadway is shown in fig. 3.

And 104, extracting at least one fault file from the exploratory line profile of the research area, and establishing a fault entity model according to the at least one fault file.

In some embodiments of the present application, a fault file refers to a file composed of surface fracture lines contained in a topographical map. The step can also be realized by the electronic equipment by using engineering software such as a 3D Mine.

As an embodiment, the process of building a fault entity model from at least one fault file may include: converting each fault file into a corresponding fault block file; and combining all fault block files to obtain a fault entity model.

And 105, combining the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model to obtain the three-dimensional geological model of the research area.

That is to say, the three-dimensional geological model established in the scheme combines the three-dimensional earth surface solid model and the full-stratum solid model, and also combines the roadway solid model and the fault solid model, so that fault and underground mining roadway elements are added in the obtained three-dimensional geological model, and the established three-dimensional geological model can meet the current situation that most open-pit mines have double modes of underground mining and open-pit mining.

The three-dimensional earth surface solid model, the full-stratum solid model, the roadway solid model and the fault solid model are combined to be stacked, and the obtained three-dimensional geological model can be shown in fig. 4.

According to the strip mine geological modeling method, a three-dimensional earth surface entity model is established according to a topographic map and a remote sensing image map of a research area, a full-stratum entity model is established according to original drilling data of the research area, at least one roadway line file and at least one fault file are extracted from the topographic map and an exploratory line profile map respectively to establish the roadway entity model and the fault entity model, and the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model are combined to obtain the three-dimensional geological model of the research area. The scheme not only can realize the construction of the three-dimensional geological model, but also promotes the richness of the model and the precision of the model due to the combination of the fault layer solid model and the roadway solid model.

In order to implement the above embodiments, the present application provides a strip mine geological modeling apparatus.

Fig. 5 is a geological modeling apparatus for a strip mine according to an embodiment of the present disclosure. As shown in fig. 5, the apparatus includes:

the first establishing module 501 is used for establishing a three-dimensional earth surface entity model according to a topographic map and a remote sensing image map of a research area;

a second establishing module 502, configured to establish a full-stratigraphic solid model according to the original drilling data of the research area;

a third establishing module 503, configured to extract at least one lane line file from the topographic map, and establish a physical model of the lane according to the at least one lane line file;

a fourth building module 504, configured to extract at least one fault file from the exploratory line profile of the research area, and build a fault entity model according to the at least one fault file;

and a merging module 505, configured to merge the three-dimensional earth surface entity model, the all-terrain entity model, the roadway entity model, and the fault entity model to obtain a three-dimensional geological model of the research area.

In some embodiments of the present application, the first establishing module 501 is specifically configured to:

and (5) carrying out image fitting on the remote sensing image map and the surface DTM model to obtain a full-stratum entity model.

As a possible implementation manner, the second establishing module 502 is specifically configured to:

performing interpolation calculation of a distance power inverse ratio method and a Kriging method on original drilling data to obtain virtual drilling data;

carrying out error checking on the original drilling data and the virtual drilling data;

In some embodiments of the present application, the third establishing module 503 is specifically configured to:

converting each lane line file into a corresponding lane block file;

and merging all the tunnel body files to obtain a tunnel entity model.

In some embodiments of the present application, the fourth establishing module 504 is specifically configured to:

converting each fault file into a corresponding fault block file;

and combining all fault block files to obtain a fault entity model.

According to the strip mine geological modeling device, a three-dimensional earth surface entity model is built according to a topographic map and a remote sensing image map of a research area, a full-stratum entity model is built according to original drilling data of the research area, at least one roadway line file and at least one fault file are extracted from the topographic map and an exploratory line profile map respectively to build the roadway entity model and the fault entity model, and the three-dimensional earth surface entity model, the full-stratum entity model, the roadway entity model and the fault entity model are combined to obtain the three-dimensional geological model of the research area. The scheme can realize the construction of the three-dimensional geological model, and also improves the richness of the model and the precision of the model due to the combination of the fault layer solid model and the roadway solid model.

Fig. 6 is a block diagram of the architecture of the electronics of the surface mine geological modeling method according to an embodiment of the application. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the applications described and/or claimed herein.

As shown in fig. 6, the electronic apparatus includes: a memory 610, a processor 620, and a computer program 630 stored on the memory and executable on the processor. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple electronic devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system).

Memory 610 is a non-transitory computer readable storage medium as provided herein. Wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the method of the above embodiments. The non-transitory computer-readable storage medium of the present application stores computer instructions for causing a computer to perform the method described in the above embodiments.

Memory 610, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods in the above embodiments. The processor 620 executes various functional applications of the server and data processing by executing non-transitory software programs, instructions, and modules stored in the memory 610, that is, implements the method in the above-described embodiment.

The memory 610 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the electronic device to implement the method in the above-described embodiments, and the like. Further, the memory 610 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 610 may optionally include memory located remotely from the processor 620, which may be connected over a network to an electronic device to implement the methods in the embodiments described above. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The electronic device may further include: an input device 640 and an output device 650. The processor 620, the memory 610, the input device 640, and the output device 650 may be connected by a bus or other means, such as the bus connection in fig. 6.

The input device 640 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic apparatus, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, a pointing stick, one or more mouse buttons, a track ball, a joystick, or other input device. The output device 650 may include a display device, an auxiliary lighting device (e.g., an LED), a haptic feedback device (e.g., a vibration motor), and the like. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A method of geologic modeling of a surface mine, comprising:

2. The method of claim 1, wherein building a three-dimensional surface solid model from the topographic map and the remotely sensed image map of the region of interest comprises:

3. The method of claim 1, wherein the building a full stratigraphic mockup from the raw borehole data for the region of interest comprises:

4. The method of claim 1, wherein the raw borehole data comprises at least an engineering number, open hole coordinates, maximum hole depth, survey line number, open/final hole time, depth, azimuth, dip, layer thickness, lithology code, and formation name.

5. The method of claim 1, wherein the building a lane solid model from the at least one lane line file comprises:

converting each lane line file into a corresponding lane block file;

and merging all the tunnel body files to obtain the entity model of the tunnel.

6. The method of claim 1, wherein said building a fault entity model from said at least one fault file comprises:

converting each fault file into a corresponding fault block file;

and combining all fault block files to obtain the fault entity model.

7. An open pit geological modeling apparatus, comprising:

8. The apparatus of claim 7, wherein the first establishing module is specifically configured to:

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the method according to any of claims 1 to 6.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 6.