Explosion facing surface optimization method and device of artificial dam body and computer readable storage medium

Abstract

The invention discloses an explosion facing surface optimization method and device of an artificial dam body and a computer readable storage medium. The method comprises the following steps: obtaining dam body parameters and an explosion facing surface sample of a to-be-optimized dam body; under the condition that the explosion facing surface is aspheric, simulating the process that the dam body to be optimized is subjected to explosion shock waves to obtain a simulation result; the anti-knock performance of the dam body to be optimized is evaluated according to the simulation result, and an evaluation result is obtained; under the condition that the evaluation result shows that the anti-knock performance of the dam body to be optimized is lower than the anti-knock performance threshold value, the anti-knock face of the dam body to be optimized is adjusted to be a spherical anti-knock face based on the dam body parameters, a target dam body is obtained, and the spherical anti-knock face refers to the anti-knock face with the anti-knock face style being a spherical anti-knock face. The technical problems that in the related technology, the anti-explosion capacity is weak and potential safety hazards are likely to be caused due to the fact that the anti-explosion face of an artificial dam body designed through a traditional dam body design method is poor in pressure bearing capacity are solved.

Description

Technical Field

[0001] The present invention relates to the field of coal mine safety technology, and in particular to a method and device for optimizing the explosion-facing surface of an artificial dam body, and a computer-readable storage medium. Background Art

[0002] When a gas explosion occurs, most structures have an absorption effect on shock waves, of which part is converted into structural stress and part is converted into kinetic energy. Under the action of strong dynamic loads, the structure will produce high-speed deformation, and its material properties are somewhat different from static loads. The impact of the explosion load on the structure is short-lived, while the reflection and refraction of stress waves in the structure are very complex. Stress waves will produce complex homogeneous or inhomogeneous defects in the structure, thereby causing macroscopic damage and destruction; in addition, due to differences in energy sources and propagation distances between different explosions, shock waves can cause various types of damage to the structure, such as crushing, dumping, cracking, collapse, and ejection.

[0003] The existing dam structure design usually has the following methods: 1) The current artificial dam body of the underground water storage space is mainly composed of reinforced concrete interlayers and waterproof layers arranged along the extension direction of the connecting tunnel, and connected to the coal pillar dam body through anchor rods. The common connection methods are mainly arched or linear; 2) The currently designed artificial dam body mainly relies on its own strength characteristics to resist the explosion shock wave. The main design dimensions are reflected in the bending moment, bending section coefficient, and maximum bending stress of the artificial dam body in the horizontal and vertical directions. The thickness of the dam body and the number of main layers are determined. At the same time, the spacing between anchor rods is determined according to the thickness of the dam body, the diameter of the anchor rod, and the load borne by the dam body.

[0004] However, the artificial dam body designed by the above method has the following disadvantages: 1) The above technology analyzes the stress condition of the artificial dam body from the perspective of statics, which can meet the engineering technical requirements in the initial design stage, but does not consider the stability of the artificial dam body under extreme conditions such as mining impact and underground disasters; 2) The artificial dam body designed above mainly relies on the strength characteristics of the dam body itself to resist the explosion shock wave, and the amount of construction materials is large and the construction and manufacturing cost is high; in addition, the arched artificial dam body has high construction accuracy requirements. When the dam body construction on both sides is asymmetrical, when one side of the empty area is subjected to water pressure, there is shear stress inside it, which may increase the risk of dam failure; 3) The reflected wave caused by the wavefront of the conventional wave-breaking wall will be diffracted and superimposed with the incident wave at the top of the wall, and then propagate forward in the form of a circulation, resulting in the effect of the shock wave being enhanced within a certain distance behind the wave-breaking wall.

[0005] Currently, no effective solution has been proposed to the problem that the explosion-facing surface of the artificial dam designed using the traditional dam design method in the above-mentioned related technologies has poor pressure bearing capacity, resulting in weak explosion resistance and easily causing safety hazards. Summary of the invention

[0006] The embodiments of the present invention provide a method and device for optimizing the explosion-facing surface of an artificial dam body, and a computer-readable storage medium, so as to at least solve the technical problem in the related art that the explosion-facing surface of an artificial dam body designed using a traditional dam body design method has poor pressure-bearing capacity, resulting in weak explosion resistance and easily causing safety hazards.

[0007] According to one aspect of an embodiment of the present invention, a method for optimizing the explosion-facing surface of an artificial dam is provided, comprising: obtaining dam body parameters and explosion-facing surface style of a dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion-proof performance, the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; when the explosion-facing surface style is non-spherical, simulating the process of the dam body to be optimized being subjected to the explosion shock wave to obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs underground in a coal mine; evaluating the explosion-proof performance of the dam body to be optimized according to the simulation result to obtain an evaluation result; when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than an explosion-proof performance threshold, adjusting the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, wherein the spherical explosion-facing surface refers to the explosion-facing surface whose explosion-facing surface style is spherical.

[0008] Optionally, in the case where the explosion-facing surface style is non-spherical, a process in which the dam body to be optimized is subjected to the explosion shock wave is simulated to obtain a simulation result, including at least one of the following: constructing a three-dimensional finite element model of the dam body to be optimized, and using finite element analysis software to simulate the process in which the dam body to be optimized is subjected to the explosion shock wave based on the finite element model to obtain the simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formation within a predetermined range of the dam body to be optimized in three-dimensional space using the finite element method; constructing a physical model based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, and using computational fluid dynamics software to simulate the process in which the dam body to be optimized is subjected to the explosion shock wave based on the physical model to obtain the simulation result, wherein the explosion source is used to generate the explosion shock wave.

[0009] Optionally, the explosion-proof performance of the dam body to be optimized is evaluated according to the simulation results to obtain an evaluation result, including: analyzing the stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain an analysis result; when the analysis result indicates that the stress on the explosion-facing surface is not less than a stress threshold, determining the evaluation result as: the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold; when the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold, determining the evaluation result as: the explosion-proof performance of the dam body to be optimized is not lower than the explosion-proof performance threshold.

[0010] Optionally, the stress includes: maximum principal stress, maximum compressive stress and maximum shear stress, and the analysis result includes: a first analysis result, a second analysis result and a third analysis result. The stress on the explosion-facing surface in the dam body to be optimized is analyzed according to the simulation result to obtain the analysis result, including: analyzing the maximum principal stress on the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the first analysis result, wherein the maximum principal stress refers to the stress on the explosion-facing surface in a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; analyzing the maximum compressive stress on the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by the explosion shock wave; analyzing the maximum compressive stress on the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by the explosion shock wave.

[0011] Optionally, the method for optimizing the explosion-facing surface of an artificial dam also includes: when the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than a principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than a compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than a shear stress threshold, determining that the analysis result is that the stress received by the explosion-facing surface is not less than the stress threshold; when the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold, determining that the analysis result is that the stress received by the explosion-facing surface is less than the stress threshold.

[0012] Optionally, when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, including: determining the spherical area of ​​the spherical explosion-facing surface by using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical surface area, R represents the error rate; based on the dam body parameters, the dam body thickness of the target dam body is determined using a second formula, wherein the second formula is: h 球面 =0.49h 平面 , R 2 ≥0.98,h 球面 represents the thickness of the dam, h 平面 represents the thickness of the dam body to be optimized; according to the spherical surface area and the dam body thickness, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface to obtain the target dam body.

[0013] Optionally, after the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, the explosion-facing surface optimization method of the artificial dam body also includes: installing the target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; using a monitoring device to monitor the stability of the target dam body in real time to obtain a monitoring result, wherein the monitoring device is installed within a predetermined range of the position where the dam body to be optimized is located; and sending an alarm signal when the monitoring result indicates that the stability of the target dam body is lower than a stability threshold.

[0014] According to another aspect of an embodiment of the present invention, a device for optimizing the explosion-facing surface of an artificial dam is also provided, comprising: a first acquisition unit, used to acquire dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; a second acquisition unit, used to simulate the process of the dam body to be optimized being subjected to the explosion shock wave when the explosion-facing surface style is a non-spherical type. A simulation is performed to obtain a simulation result, wherein the explosion shock wave refers to a pressure wave generated when an explosion occurs in a coal mine; a third acquisition unit is used to evaluate the explosion-proof performance of the dam body to be optimized according to the simulation result to obtain an evaluation result; a fourth acquisition unit is used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, so as to obtain a target dam body, wherein the spherical explosion-facing surface refers to the explosion-facing surface whose explosion-facing surface style is spherical.

[0015] Optionally, the second acquisition unit includes at least one of the following: a first acquisition module, used to construct a three-dimensional finite element model of the dam body to be optimized, so as to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the finite element model using finite element analysis software to obtain the simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formation within a predetermined range of the dam body to be optimized in three-dimensional space using the finite element method; a second acquisition module, used to construct a physical model based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, so as to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the physical model using computational fluid dynamics software to obtain the simulation result, wherein the explosion source is used to generate the explosion shock wave.

[0016] Optionally, the third acquisition unit includes: a third acquisition module, used to analyze the stress on the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain an analysis result; a first determination module, used to determine the evaluation result as follows: the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold when the analysis result indicates that the stress on the explosion-facing surface is not less than a stress threshold; a second determination module, used to determine the evaluation result as follows: the explosion-proof performance of the dam body to be optimized is not lower than the explosion-proof performance threshold when the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold.

[0017] Optionally, the stress includes: maximum principal stress, maximum compressive stress and maximum shear stress, and the analysis result includes: a first analysis result, a second analysis result and a third analysis result, and the third acquisition module includes: a first acquisition submodule, which is used to analyze the maximum principal stress received by the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the first analysis result, wherein the maximum principal stress refers to the stress received by the explosion-facing surface in a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; a second acquisition submodule, which is used to analyze the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by the explosion shock wave; a third acquisition submodule, which is used to analyze the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by the explosion shock wave.

[0018] Optionally, the explosion-facing surface optimization device of the artificial dam body also includes: a first determination submodule, used to determine that the analysis result is that the stress received by the explosion-facing surface is not less than the stress threshold when the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than the shear stress threshold; and a second determination submodule, used to determine that the analysis result is that the stress received by the explosion-facing surface is less than the stress threshold when the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold.

[0019] Optionally, the fourth acquisition unit includes: a third determination module, configured to determine the spherical area of ​​the spherical explosion-facing surface using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical area, and R represents the error rate; a fourth determination module is used to determine the dam thickness of the target dam body based on the dam body parameters using a second formula, wherein the second formula is: h 球面 =0.49h 平面 , R2 ≥0.98,h 球面 represents the thickness of the dam, h 平面 Represents the thickness of the dam body to be optimized; a fifth acquisition module, used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface according to the spherical surface area and the dam body thickness, so as to obtain the target dam body.

[0020] Optionally, the explosion-facing surface optimization device of the artificial dam body also includes: a replacement unit, used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters, and after obtaining a target dam body, install the target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; a fifth acquisition unit, used to use a monitoring device to monitor the stability of the target dam body in real time to obtain a monitoring result, wherein the monitoring device is installed within a predetermined range of the position where the dam body to be optimized is located; an early warning unit, used to send an alarm signal when the monitoring result indicates that the stability of the target dam body is lower than a stability threshold.

[0021] According to another aspect of an embodiment of the present invention, a system for optimizing the explosion facing surface of an artificial dam is further provided. The system for optimizing the explosion facing surface of an artificial dam uses any of the above-mentioned methods for optimizing the explosion facing surface of an artificial dam.

[0022] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, wherein the computer-readable storage medium includes a stored program, wherein the program executes any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam.

[0023] According to another aspect of an embodiment of the present invention, a processor is further provided, wherein the processor is used to run a program, wherein when the program is run, any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam is executed.

[0024] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, which, when executed by a processor, execute any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam.

[0025] In an embodiment of the present invention, the dam body parameters and explosion-facing surface style of the dam body to be optimized are obtained, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion-proof performance, the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; when the explosion-facing surface style is non-spherical, the process of the dam body to be optimized being subjected to the explosion shock wave is simulated to obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs underground in a coal mine; based on the simulation result, the explosion-proof performance of the dam body to be optimized is evaluated to obtain an evaluation result; when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, wherein the spherical explosion-facing surface refers to an explosion-facing surface whose explosion-facing surface style is spherical. Through the above technical solution, the process of simulating the explosion shock wave on the dam body to be optimized is achieved, so that when its explosion-proof performance does not meet the requirements, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface to improve its explosion-proof performance. The technical effect of optimizing the explosion-facing surface of the dam body to improve its pressure-bearing capacity and avoiding safety hazards as much as possible is achieved, and the explosion-proof performance of the dam body is improved. The technical problem that the explosion-facing surface of the artificial dam body designed by the traditional dam body design method in the relevant technology has poor pressure-bearing capacity, resulting in weak explosion-proof ability and easy to cause safety hazards is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a hardware structure block diagram of a mobile terminal of a method for optimizing the explosion-facing surface of an artificial dam according to an embodiment of the present invention;

[0028] Figure 2 is a flow chart of a method for optimizing the explosion-facing surface of an artificial dam according to an embodiment of the present invention;

[0029] FIG3( a ) is a front view of a spherical explosion-facing surface according to an embodiment of the present invention;

[0030] FIG3( b ) is a side view of a spherical explosion-facing surface according to an embodiment of the present invention;

[0031] FIG3( c ) is a top view of a spherical explosion-facing surface according to an embodiment of the present invention;

[0032] Figure 4 is a flow chart of dam body installation according to an embodiment of the present invention;

[0033] Figure 5is a schematic diagram of a waterproof and sealed sensor arrangement according to an embodiment of the present invention;

[0034] Figure 6 is a maximum principal stress cloud diagram of a spherical explosion-facing closed wall according to an embodiment of the present invention;

[0035] Figure 7 is a third principal stress cloud diagram of a spherical explosion-facing closed wall according to an embodiment of the present invention;

[0036] Figure 8 is a maximum shear stress cloud diagram of a spherical explosion-facing closed wall according to an embodiment of the present invention;

[0037] Fig. 9 is a maximum principal stress cloud diagram of a closed wall with a straight-face explosion-facing surface according to an embodiment of the present invention;

[0038] Fig.10 is a third principal stress cloud diagram of a closed wall with a straight-face explosion-facing surface according to an embodiment of the present invention;

[0039] Fig.11 is a maximum shear stress cloud diagram of a straight-face explosion-facing closed wall according to an embodiment of the present invention;

[0040] Fig.12 is a schematic diagram of the relative positions of overpressure monitoring points on a closed wall of a spherical explosion-facing surface structure according to an embodiment of the present invention;

[0041] FIG. 13( a ) is a time history graph of overpressure at a horizontal measuring point of a spherical explosion-facing wall according to an embodiment of the present invention;

[0042] FIG. 13( b ) is a graph showing the overpressure time history of the spherical explosion-facing wall at the vertical direction and the corner measuring points according to an embodiment of the present invention;

[0043] FIG. 14( a ) is a time history curve of overpressure at a horizontal measuring point of a straight-face explosion-facing wall according to an embodiment of the present invention;

[0044] FIG. 14( b ) is a time history graph of overpressure at the vertical direction and the corner measuring points of the straight-face explosion-facing wall according to an embodiment of the present invention;

[0045] Fig.15 Schematic diagram of a device for optimizing the explosion-facing surface of an artificial dam according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] As introduced in the background technology, the explosion-facing surface of the artificial dam body designed by the traditional dam body design method in the related art has poor pressure bearing capacity, resulting in weak explosion resistance, which easily causes safety hazards. In view of the above defects, an optimization method and device for the explosion-facing surface of an artificial dam body and a computer-readable storage medium are provided in the embodiments of the present invention.

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] The method embodiments provided in the embodiments of the present invention can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a mobile terminal of a method for optimizing the explosion-facing surface of an artificial dam according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is for illustration only and does not limit the structure of the mobile terminal. Figure 1More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0051] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the explosion-facing surface optimization method of the artificial dam body in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned network specific example may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0052] According to an embodiment of the present invention, a method embodiment of a method for optimizing the explosion-facing surface of an artificial dam is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0053] Figure 2 : is a flow chart of a method for optimizing the explosion-facing surface of an artificial dam according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0054] Step S202, obtaining the dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave.

[0055] In this embodiment, firstly, basic information such as relevant parameters of the artificial dam body to be optimized and the explosion-facing surface style of the dam body can be obtained.

[0056] Step S204, when the explosion-facing surface style is a non-spherical surface, simulate the process of the dam body to be optimized being subjected to the explosion shock wave to obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs in a coal mine.

[0057] In this embodiment, the process of the explosion shock wave impacting the explosion surface in the artificial dam body when a gas explosion or other explosion occurs in a coal mine can be simulated to obtain simulation results to provide a data basis for the explosion resistance performance analysis of the dam body to be optimized.

[0058] According to the above embodiment of the present invention, in the above step S204, when the explosion-facing surface style is a non-spherical type, the process of the dam body to be optimized being subjected to the explosion shock wave is simulated to obtain a simulation result, including at least one of the following: constructing a three-dimensional finite element model of the dam body to be optimized, and using finite element analysis software based on the finite element model to simulate the process of the dam body to be optimized being subjected to the explosion shock wave to obtain a simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formation within a predetermined range of the dam body to be optimized in three-dimensional space using the finite element method; constructing a physical model based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, and using computational fluid dynamics software based on the physical model to simulate the process of the dam body to be optimized being subjected to the explosion shock wave to obtain a simulation result, wherein the explosion source is used to generate an explosion shock wave.

[0059] Specifically, a variety of methods can be used to simulate the process of the explosion shock wave impacting the explosion surface in the artificial dam body when a gas explosion or other explosion occurs in a coal mine. Some common simulation methods are listed below: 1) Numerical simulation: By constructing a three-dimensional finite element model of the dam body and the surrounding rock formations, the detonation equation and nonlinear dynamics theory are used to simulate the propagation of the explosion wave and the dynamic response of the dam body. This can be achieved using professional finite element analysis software. These software provide a wealth of detonation loads and material models that can simulate the explosion process more accurately; 2) Fluid dynamics simulation: Use computational fluid dynamics software to simulate the propagation of the shock wave generated by the explosion in the gas medium, as well as the interaction between the shock wave and the surface of the dam body. This method is particularly effective for understanding the propagation path and energy distribution of the shock wave; 3) Elastic-plastic dynamic response analysis: Analyze the stress-strain of the dam body by simulating the elastic-plastic behavior of the material under the action of the explosion load. Relationship, predict the damage and destruction of materials. This method requires accurate material parameters and dynamic destruction models. Special dynamic analysis software can be used or dynamic analysis modules can be used in general finite element software; 4) Discontinuous deformation analysis: suitable for simulating the deformation and destruction of discontinuous media such as rocks under explosion impact. By simulating the dynamic response of a single rock block or material particle, the impact of the shock wave on the dam body and surrounding rock formations can be more realistically reflected; 5) Hybrid simulation method: Combine the above methods, for example, first use CFD (computational fluid dynamics software) to simulate the formation and propagation of shock waves, and then load the results into the FEM model to analyze the structural response of the dam body. This method can more comprehensively consider the complexity of the explosion process and improve the accuracy of the simulation; of course, the above only provides some example methods for simulating the above process, and other methods can also be used to simulate the above process, and there is no specific limitation here.

[0060] Step S206, evaluating the explosion resistance of the dam body to be optimized according to the simulation results to obtain an evaluation result.

[0061] In this embodiment, the explosion-proof performance of the dam body to be optimized can be evaluated according to the simulation results obtained in the above step S204, and a corresponding evaluation result can be obtained.

[0062] According to the above embodiment of the present invention, in the above step S206, the explosion-proof performance of the dam body to be optimized is evaluated according to the simulation results to obtain an evaluation result, including: analyzing the stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain an analysis result; when the analysis result indicates that the stress on the explosion-facing surface is not less than the stress threshold, determining the evaluation result as: the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold; when the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold, determining the evaluation result as: the explosion-proof performance of the dam body to be optimized is not lower than the explosion-proof performance threshold.

[0063] Optionally, the above stresses may include but are not limited to: maximum principal stress, maximum compressive stress and maximum shear stress.

[0064] Optionally, the above analysis results may include but are not limited to: a first analysis result, a second analysis result and a third analysis result.

[0065] It should be noted that the different stresses here are different angles for analyzing the explosion-proof performance of the dam body to be optimized, and the number of analysis results corresponds to the number of analyzed stresses.

[0066] In this embodiment, if the analysis result indicates that the stress on the explosion-facing surface is not less than the stress threshold, it is considered that the explosion-resistant performance of the dam body to be optimized is poor, that is, lower than the explosion-resistant performance threshold; if the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold, it is considered that the current explosion-resistant performance of the dam body to be optimized is good, that is, not lower than the explosion-resistant performance threshold.

[0067] It should be noted that the smaller the stress on the explosion-facing surface, the better the uniformity of its stress distribution, the bearing capacity of the material, the overall response of the structure, and the effect of energy absorption and dispersion, thereby achieving better explosion-proof performance; of course, it cannot be simply said that the smaller the stress on the explosion-facing surface, the better its explosion-proof performance. It is necessary to comprehensively consider many factors (such as the uniformity of stress distribution, the bearing capacity of the material, the overall response of the structure, and the effect of energy absorption and dispersion) and conduct a comprehensive analysis in order to objectively analyze the explosion-proof performance of the explosion-facing surface of the dam.

[0068] In the above-mentioned embodiment of the present invention, the stress on the explosion-facing surface in the dam body to be optimized is analyzed according to the simulation results to obtain analysis results, including: analyzing the maximum principal stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a first analysis result, wherein the maximum principal stress refers to the stress on the explosion-facing surface under a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; analyzing the maximum compressive stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by an explosion shock wave; analyzing the maximum compressive stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by an explosion shock wave.

[0069] Specifically, the explosion resistance of the optimized dam body can be analyzed from multiple angles such as the maximum principal stress, the third principal stress, the maximum compressive stress and the maximum shear stress on the explosion-facing surface of the optimized dam body according to the simulation results; the maximum principal stress, the third principal stress, the maximum compressive stress and the maximum shear stress here represent different types of stress states, which are briefly explained below: 1) Maximum principal stress: The principal stress refers to the three stress values ​​that can be found along three mutually perpendicular directions (main directions) at a certain point. These three stress values ​​are the principal stresses. The maximum principal stress is the maximum value of the three principal stresses, which usually indicates the maximum tensile or compressive state that the material can withstand. In the event of an explosion, points on the dam body may be subjected to both tensile and compressive forces at the same time. The maximum principal stress can be used to evaluate the extreme stress level at these points and is an important indicator for measuring whether a material may undergo brittle fracture. 2) The third principal stress: The principal stresses are usually ranked from largest to smallest, marked as maximum principal stress, intermediate principal stress, and minimum principal stress. The values ​​and directions of these principal stresses depend entirely on the stress state of the material point, such as tension, compression, or shear. The third principal stress is the minimum principal stress. 3) Maximum compressive stress: Compressive stress is the pressure when a material is compressed. The maximum compressive stress is the material The maximum compressive stress under specific conditions. Under the action of the explosion shock wave, the explosion-facing surface of the dam body may be affected by the high-speed compression wave, resulting in a large compressive stress. The maximum compressive stress can be used to determine the compressive strength and stability of the material when subjected to the explosion load, and to avoid plastic yield or damage to the material; 4) Maximum shear stress: Shear stress is the shear force acting on the internal interface of the material. The maximum shear stress is the maximum shear stress that the material withstands under the impact of the explosion. Shear stress can cause slip and deformation inside the material, especially at the contact surface between the dam body and the coal pillar dam body or surrounding rock. Shear stress may cause interface damage, slip or shear cracks. The maximum shear stress is an important parameter for evaluating the stability of the dam body joint or interface under the impact of the explosion.

[0070] In the above embodiment of the present invention, the method for optimizing the explosion-facing surface of the artificial dam body also includes: when the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than the shear stress threshold, determining that the analysis result is that the stress received by the explosion-facing surface is not less than the stress threshold; when the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold, determining that the analysis result is that the stress received by the explosion-facing surface is less than the stress threshold.

[0071] Specifically, according to the simulation results, the obtained multiple stresses are compared and analyzed with the corresponding stress thresholds. If all analysis results indicate that the stress is less than the corresponding stress threshold, it is considered that the stress on the explosion-facing surface is less than the stress threshold; if there is at least one analysis result indicating that the stress is not less than the corresponding stress threshold, it is considered that the stress on the explosion-facing surface is not less than the stress threshold.

[0072] Step S208, when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, wherein the spherical explosion-facing surface refers to an explosion-facing surface with a spherical explosion-facing surface style.

[0073] The above-mentioned embodiment of the present invention is described in detail below in conjunction with Figure 3(a), Figure 3(b) and Figure 3(c), Figure 3(a) is a front view of the spherical implosion surface according to the embodiment of the present invention, Figure 3(b) is a side view of the spherical implosion surface according to the embodiment of the present invention, and Figure 3(c) is a top view of the spherical implosion surface according to the embodiment of the present invention.

[0074] In this embodiment, if the evaluation result indicates that the explosion resistance of the dam body to be optimized needs to be optimized, it can be considered to adjust the explosion surface style of the dam body to the spherical style shown in Figures 3(a), 3(b) and 3(c) to obtain a target dam body with a spherical explosion surface. The spherical explosion surface has the following advantages: 1) It can disperse stress: The geometric characteristics of the spherical explosion surface enable the shock wave energy to be more evenly dispersed at the moment of contact, avoiding the phenomenon of stress concentration. The curvature of each point on the sphere is different, so that the intensity of the explosion load at different points is also different. This distribution helps 1) Can offset some of the compressive stress and reduce the damage to the dam body; 2) Can reduce the superposition effect of reflected waves: The complex curvature of the spherical structure makes it difficult for the reflected waves generated by the explosion to form a regular superposition after diffraction, reducing the circulation effect, thereby reducing the intensity of the shock wave behind the dam body; 3) Can improve economy and construction convenience: The spherical explosion-facing surface design allows the explosion resistance of the dam body to be improved without increasing or less increasing the amount of materials, thereby reducing costs. At the same time, the spherical design has lower requirements for construction accuracy than the straight arch design, which improves the convenience and efficiency of construction.

[0075] It should be noted that the data shown in Figures 3(a), 3(b) and 3(c) are merely optional examples and do not mean that the size of the spherical explosion-facing surface is limited to the data marked in Figures 3(a), 3(b) and 3(c). It can be determined based on actual conditions and no specific restrictions are made here.

[0076] According to the above embodiment of the present invention, in the above step S208, when the evaluation result indicates that the explosion resistance performance of the dam body to be optimized is lower than the explosion resistance performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain the target dam body, including: determining the spherical area of ​​the spherical explosion-facing surface using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical area, R represents the error rate; the thickness of the target dam is determined by the second formula based on the dam parameters, where the second formula is: h 球面 =0.49h 平面 , R 2 ≥0.98,h 球面 Indicates the thickness of the dam, h 平面 It represents the thickness of the dam body to be optimized; according to the spherical area and the thickness of the dam body, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface to obtain the target dam body.

[0077] Specifically, the formula can be used according to the dam body parameters of the artificial dam: S 球面 =0.49S 待优化坝体 Calculate the spherical area of ​​the explosion-facing surface in the target dam body, where S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical area, R represents the error rate, and uses the formula: h 球面 =0.49h 平面 Calculate the thickness of the target dam, R 2 ≥0.98,h 球面 Indicates the thickness of the dam, h 平面 Indicates the thickness of the dam to be optimized, thereby determining the style of the target dam.

[0078] According to the above embodiment of the present invention, after the above step S210, that is, after the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain the target dam body, the explosion-facing surface optimization method of the artificial dam body also includes: installing the target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; using a monitoring device to monitor the stability of the target dam body in real time to obtain a monitoring result, wherein the monitoring device is installed within a predetermined range of the position of the dam body to be optimized; and sending an alarm signal when the monitoring result indicates that the stability of the target dam body is lower than a stability threshold.

[0079] Combine the following Figure 4 and Figure 5 The installation process of the dam body in the above embodiment of the present invention is described in detail. Figure 4 is a flow chart of dam body installation according to an embodiment of the present invention, Figure 5 Schematic diagram of the arrangement of waterproof and sealed sensors according to an embodiment of the present invention.

[0080] like Figure 4 As shown, in underground coal mines, artificial dam bodies are mostly vertically embedded in coal pillar dam bodies or surrounding rocks. The artificial dam body and the coal pillar dam body (surrounding rock) are connected by anchor rods. The artificial dam body and the joints are sprayed with waterproof materials, and a dam body stability monitoring device is installed, and a monitoring system is equipped. The specific implementation steps are as follows: 1) Determine the installation location and pre-construction preparation: According to the distribution of water storage areas in the mine goaf, the location of the artificial dam body is delineated. According to the different construction locations of the artificial dam body, it can be divided into artificial dam bodies for the stop mining line of the working face, artificial dam bodies for the main tunnel to protect the coal pillar, and artificial dam bodies in other locations. According to the different construction locations of the artificial dam body, the construction process and the number of required monitoring devices and construction auxiliary materials are determined; 2) Calculation of related parameters: According to the width and height of the artificial dam body, seepage pressure, explosion overpressure, etc., according to the semi-empirical formula, the number of anchor rods, the depth of the grooves of the top and bottom plates and the coal pillar dam body, the size of the spherical surface of the artificial dam body, and the thickness of the dam body are calculated. The relevant calculation formula is as follows: Anchor spacing a is rounded up, the number of anchor rods N: N is taken according to the progressive method, the cutting depth x: x = 0.2max(b,l), where τ a is the shear strength of the anchor rod; d is the diameter of the anchor rod; h 球面 is the thickness of the artificial dam body (which can be calculated according to the second formula in the above steps); b is the height of the artificial dam body, and ΔP is the explosion overpressure. The calculation of the explosion overpressure is carried out in accordance with the TCECS736-2020 Civil Building Explosion-Proof Design Standard; 3) Artificial dam body construction: According to the calculation results of the trenching depth, the top and bottom plates and the coal pillar dam body are cut and excavated, the anchor installation position is determined, and drilling and installation operations are carried out. The installation of anchors should be evenly distributed, and an artificial dam casting model is built. The casting and maintenance are completed. The maintenance time is not less than 30D. Spray waterproof materials on the water-facing side of the artificial dam body and the dam body connection. The number of spraying is not less than 3 times, and the interval time is not more than 24H; if Figure 5As shown, stress gauges, strain gauges, piezometers, etc. are installed on the explosion-facing side of the artificial dam; the stress gauge should be installed on the coal pillar dam, and the strain gauge should be installed on the explosion-facing side of the artificial dam, and the distance from the top and bottom plates and the left and right sides should not be less than 300mm; the piezometer should be installed longitudinally on the left and right sides of the coal pillar dam near the catchment area, and the distance from the bottom plate should not be less than 500mm, and the distance between the two sensors should not be less than 500mm (it should be noted that the specific values ​​mentioned here are only exemplary optional values, and do not mean that they are limited to the values ​​​​given in the examples. They can be adaptively adjusted according to actual conditions, and no specific restrictions are made here) 4) A dam stability monitoring system can also be deployed: according to the installation location and type of the monitoring device, the analysis model and warning threshold are determined, and an artificial dam stability monitoring system is developed to realize intelligent analysis and automatic warning of groundwater reservoir big data.

[0081] As can be seen from the above, through the technical solution provided by the above embodiment of the present invention, the dam body parameters and explosion-facing surface style of the dam body to be optimized can be obtained, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; when the explosion-facing surface style is a non-spherical type, the process of the dam body to be optimized being subjected to the explosion shock wave is simulated to obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs in a coal mine underground; the explosion resistance of the dam body to be optimized is evaluated according to the simulation result to obtain an evaluation result; When the evaluation results indicate that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain the target dam body, wherein the spherical explosion-facing surface refers to an explosion-facing surface with a spherical explosion-facing surface style. This achieves the purpose of simulating the process in which the dam body to be optimized is subjected to the explosion shock wave, so as to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface to improve its explosion-proof performance when its explosion-proof performance does not meet the requirements. This achieves the technical effect of optimizing the explosion-facing surface of the dam body to improve its pressure-bearing capacity and avoiding safety hazards as much as possible, thereby improving the explosion-proof performance of the dam body.

[0082] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problem in the related art that the explosion-facing surface of the artificial dam body designed using the traditional dam body design method has poor pressure bearing capacity, resulting in weak explosion resistance and easily causing safety hazards.

[0083] Combine the following Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.1213(a), 13(b), 14(a) and 14(b) illustrate the advantages of the spherical explosion-facing surface in the above embodiment of the present invention in detail. Figure 6 is a maximum principal stress cloud diagram of a spherical explosion-facing closed wall according to an embodiment of the present invention, Figure 7 is the third principal stress cloud diagram of the spherical explosion-facing closed wall according to an embodiment of the present invention, Figure 8 is a cloud diagram of the maximum shear stress of the spherical explosion-facing closed wall according to an embodiment of the present invention, Fig. 9 is a maximum principal stress cloud diagram of a closed wall facing the explosion surface according to an embodiment of the present invention, Fig.10 is the third principal stress cloud diagram of the straight-face explosion-facing closed wall according to an embodiment of the present invention, Fig.11 is a maximum shear stress cloud diagram of a closed wall facing the explosion surface according to an embodiment of the present invention,

[0084] Fig.12 13( a) is a diagram showing the relative positions of overpressure monitoring points of a closed wall of a spherical explosion-facing surface structure according to an embodiment of the present invention, FIG13( a) is a diagram showing the overpressure time history of horizontal measuring points of a spherical explosion-facing surface wall according to an embodiment of the present invention, FIG13( b) is a diagram showing the overpressure time history of vertical and corner measuring points of a spherical explosion-facing surface wall according to an embodiment of the present invention, FIG14( a) is a diagram showing the overpressure time history of horizontal measuring points of a straight-face explosion-facing surface wall according to an embodiment of the present invention, and FIG14( b) is a diagram showing the overpressure time history of vertical and corner measuring points of a straight-face explosion-facing surface wall according to an embodiment of the present invention.

[0085] Figure 6 , Figure 7 and Figure 8 They are the maximum principal stress cloud map, the third principal stress cloud map, and the maximum shear stress cloud map of the closed wall on the spherical explosion-facing surface. The maximum tensile stress of the closed wall appears at the intersection of the tunnel groove and the closed wall on the side impacted by the explosion, and its value is 5.95MPa; the maximum compressive stress is 6.39MPa, which appears on the other side of the area corresponding to the maximum tensile stress; the maximum shear stress is 3.44MPa, which appears at the intersection of the tunnel groove and the closed wall, and the maximum lateral displacement of the central measuring point is 0.0323mm; Figure 6 As shown in the figure, the spherical blasting surface is subjected to compressive stress. Since the curvatures of the spherical blasting surface are different, most of the compressive stresses cancel each other out, so the compressive stress is not obvious. However, a stress concentration area appears at the contact surface between the artificial dam body and the coal pillar dam body, that is, the tunnel groove. The tunnel groove on the blasting surface is subjected to tensile stress, and the tunnel groove on the back blasting side is subjected to compressive stress. Figure 7 As shown in Figure 2, the third principal stress of the spherical explosion-facing wall is similar to the maximum principal stress in magnitude and position; Figure 8As shown in the figure, the explosion-facing surface of the artificial dam is completely subjected to shear stress, and the maximum shear stress occurs at the intersection of the tunnel groove and the closed wall, while the shear stress at the center of the explosion-facing surface is much smaller than that at the intersection of the tunnel groove and the closed wall. It can be seen that the spherical explosion-facing surface component weakens the intensity of the explosion shock wave and plays an anti-explosion effect.

[0086] In order to compare the explosion-proof effect of the spherical artificial dam, the finite element model of the straight-faced closed wall is analyzed for comparison. Except for the absence of the spherical surface, the size and specific material parameters of other structural units in the straight-faced wall finite element model remain unchanged. Fig. 9 , Fig.10 and Fig.11 They are the maximum principal stress cloud diagram, the third principal stress cloud diagram, and the maximum shear stress cloud diagram facing the closed wall. The maximum tensile stress of the closed wall appears at the intersection of the tunnel top and bottom plates and the closed wall, and its value is 12.72MPa. Fig. 9 , Fig.10 and Fig.11 As shown, the enclosed wall is seriously damaged by tensile stress; the maximum compressive stress is 12.75MPa, which appears on the other side of the area where the maximum tensile stress is located; the maximum shear stress is 6.22MPa, which appears at the intersection of the tunnel roof and floor and the enclosed wall. The maximum lateral displacement of the central measuring point is 0.123mm.

[0087] By comparing the closed walls with straight-face explosion surfaces, it is found that the maximum principal stress of the closed wall with spherical explosion surface is reduced by 53.2% compared with the maximum principal stress of the wall with straight-face explosion surface; the maximum compressive stress of the closed wall with spherical explosion surface is reduced by 49.9% compared with the wall with straight-face explosion surface; the maximum shear stress of the closed wall with spherical explosion surface is reduced by 44.7% compared with the wall with straight-face explosion surface; the maximum lateral displacement of the central measuring point of the closed wall with spherical explosion surface is 73.7% of that of the wall with straight-face explosion surface; it can be seen that the explosion-proof effect of the closed wall with spherical explosion surface is better than that of the closed wall with straight-face explosion surface.

[0088] The middle area of ​​the explosion-facing surface of the closed wall and the corner where the top and bottom plates of the tunnel intersect are subject to greater explosion overpressure. In order to clarify the ability of the closed walls with two special-shaped explosion-facing surface structures to reduce the overpressure of the gas explosion shock wave, Fig.12As shown in Figure 13, the analysis can be carried out by arranging the corresponding overpressure monitoring points on the surface of the special-shaped explosion-facing wall; as shown in Figure 13(a) and Figure 13(b), it can be seen that the overpressure peak values ​​of the horizontal measuring points on the spherical explosion-facing surface are 1.2MPa, 0.42MPa, 1.7MPa, 1.72MPa, and 0.42MPa, respectively. The explosion intensity at the central measuring point A1 and A8 near the central measuring point is relatively high; the overpressure peak values ​​at the vertical measuring points A1, A6, and A5 are 1.2MPa, 0.88MPa, and 0.94MPa, respectively, and the overpressure peak values ​​at the corner measuring points A4 and A7 are 2.23MPa and 1.77MPa, respectively; when the blast wave reaches the spherical explosion-facing surface, the intensity of the blast load on the spherical surface is relatively small, while the intensity of the blast load at the corner is the highest. High, easy to be damaged; as shown in Figure 14 (a) and Figure 14 (b), it can be seen that the overpressure peaks of each measuring point in the horizontal direction on the straight-face explosion surface are basically consistent with the analysis in Chapter 3, and the explosion intensity of each measuring point is greatly different. The overpressure peaks of A1, A2, A3, A8, and A9 are 1.60MPa, 1.61MPa, 1.58MPa, 1.58MPa, and 1.61MPa. A2 and A9 are symmetrical in space and the overpressure peaks are basically the same. At the same time, A3 and A8 are also symmetrical in space and the overpressure peaks are basically the same. The explosion intensity suffered by the central measuring point A1 and A2 and A8 near the central measuring point is relatively high. The overpressure peaks at the vertical measuring points A1, A6, and A5 are 1.60MPa, 1.62MPa, and 1.54MPa, and the overpressure peaks at the corner measuring points A4 and A7 are both 1.68MPa.

[0089] The overpressure peak values ​​of the spherical and straight-face explosion-facing surface measuring points are compared and analyzed in combination with Table 1. Table 1 is a comparison table of the overpressure peak values ​​of the spherical and straight-face explosion-facing surface measuring points. The maximum overpressure peak reduction rate of the spherical explosion-facing surface measuring points can reach 74%. The overpressure peak values ​​at the corner measuring points A4 and A7 and the intersection of the groove and the wall measuring points A3 and A8 increased, decreasing by -33%, -5%, -7%, and -8%, respectively. The central measuring point A1 and the measuring points A2, A5, A6, and A9 near the central measuring point decreased by 24%, 74%, 39%, and 74%, respectively. This shows that the raised part of the enclosed wall of the spherical explosion-facing surface structure has a more obvious effect on reducing the shock wave, and the overpressure peak value of the spherical explosion-facing surface measuring point is reduced by 23% compared with the straight-face type on average.

[0090] Table 1

[0091]

[0092] Based on the above analysis, it can be seen that the dam body with a spherical explosion-facing surface has better explosion-proof performance when facing an explosion shock wave; it should be noted that the technical solution provided in the embodiment of the present invention is mainly to illustrate that the dam body with a spherical explosion-facing surface has better explosion-proof performance when facing an explosion shock wave, so it is not necessary to choose to adjust the existing dam body to be optimized to a dam body with a spherical explosion-facing surface when the explosion-proof performance is lower than the explosion-proof performance threshold. The best and most suitable dam body can be selected by comprehensively considering multiple factors such as the explosion-proof performance of the dam body's explosion-facing surface, the required cost, and construction requirements.

[0093] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0094] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0095] According to an embodiment of the present invention, there is also provided an explosion-facing surface optimization device for an artificial dam body for implementing the explosion-facing surface optimization method for an artificial dam body. Fig.15 Schematic diagram of an optimization device for the explosion-facing surface of an artificial dam according to an embodiment of the present invention. Fig.15 As shown, the device includes: a first acquisition unit 151, a second acquisition unit 153, a third acquisition unit 155, and a fourth acquisition unit 157. The device for optimizing the explosion-facing surface of an artificial dam is described in detail below.

[0096] The first acquisition unit 151 is used to obtain the dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave.

[0097] The second acquisition unit 153 is used to simulate the process of the dam body to be optimized being subjected to the explosion shock wave when the explosion-facing surface style is a non-spherical type, and obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs in a coal mine.

[0098] The third acquisition unit 155 is used to evaluate the explosion resistance performance of the dam body to be optimized according to the simulation results to obtain an evaluation result.

[0099] The fourth acquisition unit 157 is used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body when the evaluation result indicates that the explosion-resistant performance of the dam body to be optimized is lower than the explosion-resistant performance threshold, wherein the spherical explosion-facing surface refers to an explosion-facing surface with a spherical explosion-facing surface style.

[0100] It should be noted here that the above-mentioned first acquisition unit 151, second acquisition unit 153, third acquisition unit 155, and fourth acquisition unit 157 correspond to steps S202 to S208 in the above-mentioned embodiments, and the four units are the same as the instances and application scenarios implemented by the corresponding steps, but are not limited to the contents disclosed in the above-mentioned embodiments.

[0101] It can be seen from the above that in the scheme recorded in the above-mentioned embodiment of the present invention, the first acquisition unit can be used to acquire the dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion-proof performance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; then, the second acquisition unit is used to simulate the process of the dam body to be optimized being subjected to the explosion shock wave when the explosion-facing surface style is a non-spherical type, and a simulation result is obtained, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs in a coal mine; then, the third acquisition unit is used to evaluate the explosion-proof performance of the dam body to be optimized according to the simulation result. , and obtain the evaluation result; finally, when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the fourth acquisition unit is used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain the target dam body, wherein the spherical explosion-facing surface refers to an explosion-facing surface with a spherical explosion-facing surface style, so as to achieve the purpose of simulating the process of the dam body to be optimized being subjected to the explosion shock wave, so as to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface to improve its explosion-proof performance when its explosion-proof performance does not meet the requirements, and achieve the technical effect of optimizing the explosion-facing surface of the dam body to improve its pressure-bearing capacity and avoiding safety hazards as much as possible, thereby improving the explosion-proof performance of the dam body.

[0102] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problem in the related art that the explosion-facing surface of the artificial dam body designed using the traditional dam body design method has poor pressure bearing capacity, resulting in weak explosion resistance and easily causing safety hazards.

[0103] Optionally, the second acquisition unit includes at least one of the following: a first acquisition module, used to construct a three-dimensional finite element model of the dam body to be optimized, so as to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the finite element model using finite element analysis software to obtain a simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formations within a predetermined range of the dam body to be optimized in three-dimensional space using the finite element method; a second acquisition module, used to construct a physical model based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, so as to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the physical model using computational fluid dynamics software to obtain a simulation result, wherein the explosion source is used to generate an explosion shock wave.

[0104] Optionally, the third acquisition unit includes: a third acquisition module, which is used to analyze the stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain an analysis result; a first determination module, which is used to determine the evaluation result as follows: the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold when the analysis result indicates that the stress on the explosion-facing surface is not less than the stress threshold; and a second determination module, which is used to determine the evaluation result as follows: the explosion-proof performance of the dam body to be optimized is not lower than the explosion-proof performance threshold when the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold.

[0105] Optionally, the stress includes: maximum principal stress, maximum compressive stress and maximum shear stress, and the analysis results include: a first analysis result, a second analysis result and a third analysis result, and the third acquisition module includes: a first acquisition submodule, which is used to analyze the maximum principal stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results, and obtain a first analysis result, wherein the maximum principal stress refers to the stress received by the explosion-facing surface under a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; a second acquisition submodule, which is used to analyze the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results, and obtain a second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by an explosion shock wave; a third acquisition submodule, which is used to analyze the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results, and obtain a third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by an explosion shock wave.

[0106] Optionally, the explosion-facing surface optimization device of the artificial dam body also includes: a first determination submodule, which is used to determine that the analysis result is that the stress on the explosion-facing surface is not less than the stress threshold when the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than the shear stress threshold; and a second determination submodule, which is used to determine that the analysis result is that the stress on the explosion-facing surface is less than the stress threshold when the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold.

[0107] Optionally, the fourth acquisition unit includes: a third determination module, which is used to determine the spherical area of ​​the spherical explosion-facing surface by using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical area, and R represents the error rate; a fourth determination module is used to determine the dam thickness of the target dam body based on the dam body parameters using the second formula, wherein the second formula is: h 球面 =0.49h 平面 , R 2 ≥0.98,h 球面 Indicates the thickness of the dam, h 平面 Represents the thickness of the dam body to be optimized; a fifth acquisition module, used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface according to the spherical area and the thickness of the dam body, so as to obtain the target dam body.

[0108] Optionally, the explosion-facing surface optimization device of the artificial dam body also includes: a replacement unit, which is used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters, and after obtaining the target dam body, install the target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; a fifth acquisition unit, which is used to use a monitoring device to monitor the stability of the target dam body in real time to obtain a monitoring result, wherein the monitoring device is installed within a predetermined range of the position of the dam body to be optimized; and an early warning unit, which is used to send an alarm signal when the monitoring result indicates that the stability of the target dam body is lower than a stability threshold.

[0109] According to another aspect of an embodiment of the present invention, a system for optimizing the explosion facing surface of an artificial dam is further provided. The system for optimizing the explosion facing surface of an artificial dam uses any of the above-mentioned methods for optimizing the explosion facing surface of an artificial dam.

[0110] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, the computer-readable storage medium comprising a stored program, wherein the program executes any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam.

[0111] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the communication devices in a communication device group.

[0112] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: obtaining dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion-proof performance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; when the explosion-facing surface style is non-spherical, simulating the process of the dam body to be optimized being subjected to the explosion shock wave to obtain a simulation result, wherein the explosion shock wave refers to the pressure wave generated when an explosion occurs underground in a coal mine; evaluating the explosion-proof performance of the dam body to be optimized based on the simulation result to obtain an evaluation result; when the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, adjusting the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, wherein the spherical explosion-facing surface refers to an explosion-facing surface whose explosion-facing surface style is spherical.

[0113] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: constructing a three-dimensional finite element model of the dam body to be optimized, and using finite element analysis software to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the finite element model to obtain a simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formations within a predetermined range of the dam body to be optimized in three-dimensional space using the finite element method; constructing a physical model based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, and using computational fluid dynamics software to simulate the process of the dam body to be optimized being subjected to the explosion shock wave based on the physical model to obtain a simulation result, wherein the explosion source is used to generate an explosion shock wave.

[0114] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: analyzing the stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain analysis results; when the analysis results indicate that the stress on the explosion-facing surface is not less than a stress threshold, determining an evaluation result as follows: the explosion-resistant performance of the dam body to be optimized is lower than the explosion-resistant performance threshold; when the analysis results indicate that the stress on the explosion-facing surface is less than the stress threshold, determining an evaluation result as follows: the explosion-resistant performance of the dam body to be optimized is not lower than the explosion-resistant performance threshold.

[0115] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: analyzing the maximum principal stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a first analysis result, wherein the maximum principal stress refers to the stress received by the explosion-facing surface under a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; analyzing the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by an explosion shock wave; analyzing the maximum compressive stress received by the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain a third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by an explosion shock wave.

[0116] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for executing the following steps: when the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than the shear stress threshold, determine that the analysis result is that the stress on the explosion-facing surface is not less than the stress threshold; when the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold, determine that the analysis result is that the stress on the explosion-facing surface is less than the stress threshold.

[0117] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: determining the spherical area of ​​the spherical explosion-facing surface using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical area, R represents the error rate; the thickness of the target dam is determined by the second formula based on the dam parameters, where the second formula is: h 球面 =0.49h 平面 , R 2 ≥0.98,h 球面 Indicates the thickness of the dam, h 平面 It represents the thickness of the dam body to be optimized; according to the spherical area and the thickness of the dam body, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface to obtain the target dam body.

[0118] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: installing a target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; using a monitoring device to monitor the stability of the target dam body in real time to obtain monitoring results, wherein the monitoring device is installed within a predetermined range of the position of the dam body to be optimized; and issuing an alarm signal when the monitoring results indicate that the stability of the target dam body is lower than a stability threshold.

[0119] According to another aspect of an embodiment of the present invention, a processor is further provided, and the processor is used to run a program, wherein when the program is run, any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam is executed.

[0120] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, which, when executed by a processor, execute any one of the above-mentioned methods for optimizing the explosion-facing surface of an artificial dam.

[0121] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0122] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0123] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0124] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0125] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0126] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0127] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for optimizing the explosion-facing surface of an artificial dam, characterized in that: include: Obtaining dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; When the explosion-facing surface is of a non-spherical type, a process in which the dam body to be optimized is subjected to the explosion shock wave is simulated to obtain a simulation result, wherein the explosion shock wave refers to a pressure wave generated when an explosion occurs in a coal mine; Evaluate the explosion resistance of the dam body to be optimized according to the simulation results to obtain an evaluation result; When the evaluation result indicates that the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold, the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, wherein the spherical explosion-facing surface refers to the explosion-facing surface having a spherical explosion-facing surface style.

2. The method for optimizing the explosion-facing surface of an artificial dam according to claim 1, characterized in that: When the explosion-facing surface is non-spherical, the process of the dam body to be optimized being subjected to the explosion shock wave is simulated to obtain simulation results, including at least one of the following: Constructing a three-dimensional finite element model of the dam body to be optimized, and simulating the process of the dam body to be optimized being subjected to the explosion shock wave by using finite element analysis software based on the finite element model to obtain the simulation result, wherein the three-dimensional finite element model is a model obtained by modeling the dam body to be optimized and the rock formation within a predetermined range of the dam body to be optimized in three-dimensional space using a finite element method; A physical model is constructed based on the dam body parameters of the dam body to be optimized and the source body parameters of the explosion source, so as to simulate the process of the dam body to be optimized being subjected to the explosion shock wave using computational fluid dynamics software based on the physical model to obtain the simulation result, wherein the explosion source is used to generate the explosion shock wave.

3. The method for optimizing the explosion-facing surface of an artificial dam according to claim 1, characterized in that: The explosion resistance performance of the dam body to be optimized is evaluated according to the simulation results to obtain evaluation results, including: Analyze the stress on the explosion-facing surface in the dam body to be optimized according to the simulation results to obtain analysis results; When the analysis result indicates that the stress on the explosion-facing surface is not less than a stress threshold, determining the evaluation result as: the explosion-proof performance of the dam body to be optimized is lower than the explosion-proof performance threshold; When the analysis result indicates that the stress on the explosion-facing surface is less than the stress threshold, the evaluation result is determined as: the explosion-proof performance of the dam body to be optimized is not lower than the explosion-proof performance threshold.

4. The method for optimizing the explosion-facing surface of an artificial dam according to claim 3, characterized in that: The stress includes: maximum principal stress, maximum compressive stress and maximum shear stress. The analysis results include: first analysis results, second analysis results and third analysis results. The stress on the explosion-facing surface in the dam body to be optimized is analyzed according to the simulation results to obtain analysis results, including: Analyzing the maximum principal stress received by the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the first analysis result, wherein the maximum principal stress refers to the stress received by the explosion-facing surface in a preset deformation state, and the preset deformation state refers to the maximum tensile state or compression state within the deformation range of the explosion-facing surface; Analyzing the maximum compressive stress on the explosion-facing surface in the dam body to be optimized according to the simulation result to obtain the second analysis result, wherein the maximum compressive stress is used to evaluate the degree of compression of the explosion-facing surface when it is impacted by the explosion shock wave; The maximum compressive stress on the explosion-facing surface in the dam body to be optimized is analyzed according to the simulation results to obtain the third analysis result, wherein the maximum shear stress is used to judge and evaluate the connection stability of the explosion-facing surface when it is impacted by the explosion shock wave.

5. The method for optimizing the explosion-facing surface of an artificial dam according to claim 4, characterized in that: Also includes: When the analysis result is at least one of the following: the first analysis result indicates that the maximum principal stress is not less than a principal stress threshold, the second analysis result indicates that the maximum compressive stress is not less than a compressive stress threshold, and the third analysis result indicates that the maximum shear stress is not less than a shear stress threshold, determining that the analysis result is that the stress on the explosion-facing surface is not less than the stress threshold; When the first analysis result indicates that the maximum principal stress is less than the principal stress threshold, the second analysis result indicates that the maximum compressive stress is less than the compressive stress threshold, and the third analysis result indicates that the maximum shear stress is less than the shear stress threshold, it is determined that the analysis result is that the stress on the explosion facing surface is less than the stress threshold.

6. The method for optimizing the explosion-facing surface of an artificial dam according to claim 1, characterized in that: When the evaluation result indicates that the explosion resistance performance of the dam body to be optimized is lower than the explosion resistance performance threshold, adjusting the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, including: The spherical area of ​​the spherical explosion-facing surface is determined using a first formula based on the dam body parameters, wherein the first formula is: S 球面 =0.49S 待优化坝体 , R 2 ≥0.98,S 待优化坝体 represents the area of ​​the explosion-facing surface in the dam to be optimized, S 球面 represents the spherical surface area, and R represents the error rate; The dam thickness of the target dam is determined using a second formula based on the dam parameters, wherein the second formula is: 球面 =0.49h 平面 , R 2 ≥0.98,h 球面 represents the thickness of the dam, h 平面 represents the thickness of the dam body to be optimized; The explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface according to the spherical surface area and the thickness of the dam body to obtain the target dam body.

7. The method for optimizing the explosion-facing surface of an artificial dam according to claim 1, characterized in that: After the explosion-facing surface of the dam body to be optimized is adjusted to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body, the method further includes: Installing the target dam body at the position of the dam body to be optimized to replace the dam body to be optimized; Using a monitoring device to monitor the stability of the target dam body in real time to obtain a monitoring result, wherein the monitoring device is installed within a predetermined range of the position where the dam body to be optimized is located; When the monitoring result indicates that the stability of the target dam body is lower than a stability threshold, an alarm signal is issued.

8. An optimization device for the explosion-facing surface of an artificial dam, characterized in that: include: A first acquisition unit is used to acquire dam body parameters and explosion-facing surface style of the dam body to be optimized, wherein the dam body to be optimized is an artificial dam body that needs to be optimized for explosion resistance, and the explosion-facing surface style refers to the style of the explosion-facing surface in the dam body to be optimized, and the explosion-facing surface refers to the area in the dam body to be optimized that directly faces the explosion shock wave; The second acquisition unit is used to simulate the process of the dam body to be optimized being subjected to the explosion shock wave when the explosion-facing surface style is a non-spherical type, and obtain a simulation result, wherein the explosion shock wave refers to a pressure wave generated when an explosion occurs in a coal mine; A third acquisition unit is used to evaluate the explosion resistance performance of the dam body to be optimized according to the simulation result to obtain an evaluation result; The fourth acquisition unit is used to adjust the explosion-facing surface of the dam body to be optimized to a spherical explosion-facing surface based on the dam body parameters to obtain a target dam body when the evaluation result indicates that the explosion-resistant performance of the dam body to be optimized is lower than the explosion-resistant performance threshold, wherein the spherical explosion-facing surface refers to the explosion-facing surface whose explosion-resistant surface style is spherical.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method for optimizing the explosion-facing surface of an artificial dam according to any one of claims 1 to 7.

10. A computer program product comprising computer instructions, characterized in that: When the computer instructions are executed by the processor, the method for optimizing the explosion-facing surface of an artificial dam as described in any one of claims 1 to 7 is performed.

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