Energy storage support anti-impact system and method for coal mine rock burst roadway

Abstract

The invention provides a coal mine rock burst roadway energy storage support anti-impact system and method.The coal mine rock burst roadway energy storage support anti-impact system comprises an anchoring rib net and an anchoring assembly, the anchoring rib net is laid on the wall face of the roadway, the anchoring assembly comprises a plurality of anchoring parts, and the anchoring parts are arranged on the longitudinal section of the roadway. The multiple anchoring parts are arranged on the roadway wall face at intervals, each anchoring part comprises an anchor rod, a nut, a tray and a power generation part, the anchor rods are used for being inserted into anchor holes in the roadway wall face, the nuts, the trays and the power generation parts are sequentially arranged on the anchor rods in a sleeving mode, and the extension directions of the power generation parts are consistent with the extension directions of the anchor rods; the power generation part is used for capturing energy released by the coal and rock mass and converting the energy into electric energy. The energy storage support power generation structure adopted by the coal mine rock burst roadway energy storage support anti-impact system not only can resist impact energy generated by coal and rock masses, but also can capture energy released by the coal and rock masses and convert the energy into electric energy for storage and utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of safe mining of coal mines, and in particular to a coal mine rock burst tunnel energy storage support and anti-rock burst system and method. Background Art

[0002] As coal mining depths continue to increase, especially during the excavation of rock burst tunnels, stresses in the rock burst working face undergo dramatic adjustments, resulting in coal bursts of varying sizes. When coal bursts occur, the elastic energy stored in the coal rock is instantly released, forming high-intensity impact stress waves. This causes the support structure to be subjected to instantaneous dynamic loads far exceeding the static load, directly leading to fracture, bending, or overall instability of the support structure. Conventional anchor support structures, while having a certain degree of impact resistance, still struggle to meet mine safety requirements under rock bursts. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a coal mine rock burst tunnel energy storage support and anti-impact system and method. The energy storage support and power generation structure adopted by the coal mine rock burst tunnel energy storage support and anti-impact system can not only resist the impact energy generated by the coal rock mass, but also capture the energy released by the coal rock mass and convert it into electrical energy for storage and utilization.

[0005] The coal mine rock burst tunnel energy storage support and anti-rock burst system according to an embodiment of the present invention includes:

[0006] Anchor reinforcement mesh, the anchor reinforcement mesh is laid on the tunnel wall;

[0007] Anchoring assembly, the anchoring assembly includes a plurality of anchoring pieces, and in the longitudinal section of the tunnel, the plurality of anchoring pieces are arranged at intervals on the tunnel wall.

[0008] The anchoring piece includes an anchor rod, a nut, a tray, and a power generation part. The anchor rod is used to be inserted into the anchor hole on the tunnel wall. The nut, the tray, and the power generation part are sequentially mounted on the anchor rod. The extension direction of the power generation part is consistent with the extension direction of the anchor rod. The power generation part is used to capture the energy released by the coal rock mass and convert it into electrical energy.

[0009] There are multiple anchoring assemblies, and the multiple anchoring assemblies are arranged at intervals along the extension direction of the tunnel.

[0010] The coal mine rock burst tunnel energy storage support and anti-bumping system of the embodiment of the present invention can provide a support structure while using the power generation unit to capture the energy released by the coal rock under the action of rock burst and convert it into electrical energy, which not only improves energy utilization efficiency, but also facilitates monitoring and early warning.

[0011] In some embodiments, the power generation portion includes a first power generation element and a second power generation element, the first power generation element is placed between the tray and the wall of the tunnel, and the second power generation element is placed in the anchor hole.

[0012] In some embodiments, an energy storage component is further included, wherein the energy storage component is connected to the power generation part to store the electric energy converted by the power generation part.

[0013] In some embodiments, the energy storage component includes an early warning component, which is used to detect the amount of power generated by the power generation unit. If the amount of power generated by the power generation unit exceeds a preset value, the early warning component sends a warning signal.

[0014] In some embodiments, the plurality of anchors are divided into first anchors and second anchors, the anchor rod length of the first anchor is smaller than the anchor rod length of the second anchor, and at most one second anchor is provided between two adjacent first anchors.

[0015] The coal mine rock burst tunnel energy storage support and anti-bumping method of the embodiment of the present invention, wherein the coal mine rock burst tunnel energy storage support and anti-bumping system is completed using the coal mine rock burst tunnel energy storage support and anti-bumping system described in any of the above embodiments, comprises the following steps:

[0016] S1. Select anchor bolt components according to the tunnel geology and mining conditions;

[0017] S2. Drill holes into the tunnel wall and install anchoring agent, anchor rod, power generation unit, tray and nut in sequence;

[0018] S3, using the power generation unit to collect mechanical energy generated by the coal rock mass, and deforming the coal rock mass under the action of the mechanical energy to generate electrical energy;

[0019] S4. Monitor the changes in the tunnel support force in real time based on the power generation of the power generation unit.

[0020] In some embodiments, in step S2, for the goaf-adjacent tunnel, an annular power generation unit is arranged in the anchor hole in the roof of the lateral goaf.

[0021] In some embodiments, in step S3, the maximum power generation capacity Q of the power generation unit is arranged according to the impact of the roadway. C , Q C It is used as the critical value for judging the impact of tunnel power generation and monitoring the power generation Q in different areas of the tunnel in real time. i , when K=Q i / Q C *When 100% ≥ 80%, the tunnel is determined to be in a dangerous state, and measures to strengthen tunnel support and unloading pressure are taken in the dangerous area.

[0022] In some embodiments, in step S4, the warning member is connected to the power generation unit, and a preset power generation amount is set. When the power generation amount of the power generation unit exceeds the preset power generation amount, the warning member sends a warning signal.

[0023] In some embodiments, the following steps are also included: S5, storing the electrical energy converted by the power generation unit to power the underground lighting and monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial structural diagram of the coal mine rock burst tunnel energy storage support and anti-rock burst system according to an embodiment of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the anchoring parts of the coal mine rock burst tunnel energy storage support and anti-bumping system according to an embodiment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the anchoring parts of the coal mine rock burst tunnel energy storage support and anti-bumping system according to another embodiment of the present invention.

[0027] Reference numerals:

[0028] 100. The wall of the alley,

[0029] 1. Anchor assembly, 11. Anchor, 11a. First anchor, 11b. Second anchor, 111. Anchor rod, 112. Nut, 113. Tray, 114. Power generation unit, 114a. First power generation element, 114b. Second power generation element. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figure 1-Figure 3 As shown, the coal mine rock burst tunnel energy storage support and anti-rock burst system according to the embodiment of the present invention is described below based on the accompanying drawings.

[0032] The coal mine rock burst tunnel energy storage support and anti-bumping system according to the embodiment of the present invention includes an anchoring reinforcement mesh and an anchoring assembly 1.

[0033] Anchor reinforcement is laid on the tunnel wall. The anchor assembly 1 includes multiple anchors 11, which are spaced apart on the tunnel wall in the longitudinal cross-section of the tunnel. The anchors 11 include an anchor rod 111, a nut 112, a tray 113, and a power generation unit 114. The anchor rod 111 is inserted into an anchor hole on the tunnel wall. The nut 112, tray 113, and power generation unit 114 are sequentially mounted on the anchor rod 111. The power generation unit 114 extends in the same direction as the anchor rod 111 and is used to capture energy released by the coal and rock mass and convert it into electrical energy. There are multiple anchor assemblies 1, and the multiple anchor assemblies 1 are spaced apart along the extension direction of the tunnel.

[0034] Specifically, if Figure 1 and Figure 2 As shown, the anchoring reinforcement mesh is laid directly on the wall 100 of the tunnel to form a basic protective layer. The anchor rod 111 is used to be inserted into the anchor hole on the tunnel wall to provide basic fixing. After the power generation part 114 is mounted on the anchor rod 111, the tray 113 and the nut 112 are put on in sequence to fix it, completing the installation of the anchor assembly 1. The arrangement of multiple anchor assemblies 1 can be arranged according to the actual tunnel working conditions to ensure the overall strength of the support structure. For example, in the extension direction of the tunnel, the number of anchors 11 in the multiple anchor assemblies 1 can be arranged in a "five-four-five" manner to ensure the support effect.

[0035] As can be understood, anchor rod 111, inserted into the anchor hole in the tunnel wall, can penetrate deep into the coal and rock mass, providing reliable anchoring force, connecting the coal and rock mass on the tunnel wall with the stable coal and rock mass at depth, and enhancing the bearing capacity of the tunnel wall. When nut 112 is tightened, tray 113 evenly transfers the anchoring force of anchor rod 111 to the tunnel wall and anchor reinforcement, further enhancing the support effect.

[0036] When rock burst occurs, the elastic energy stored in the coal and rock mass is instantly released, generating high-intensity impact energy. The power generation unit 114 captures this energy and converts it into electrical energy. This not only effectively utilizes the impact energy and reduces damage to the support structure, but also allows the converted electrical energy to be used for other equipment within the roadway, such as lighting and monitoring, thereby improving energy efficiency.

[0037] It should be noted that the power generation unit 114 can adopt piezoelectric power generation materials (such as piezoelectric ceramics, which can convert impact pressure into electrical energy), electrostatic / capacitive energy collection systems (i.e., changing the spacing or area of capacitor plates by mechanical force to cause charge redistribution), and flexible power generation technology (such as flexible magnetoelectric composite materials, which change the magnetization state by stress and then generate electricity through coil induction). In other words, the energy storage support and power generation measures adopted by the coal mine rock burst tunnel energy storage support and anti-impact system of the embodiment of the present invention not only resist the impact energy generated by the coal and rock mass, but also capture the energy released by the coal and rock mass and convert it into electrical energy for storage or utilization.

[0038] In other words, the coal mine rock burst tunnel energy storage support and anti-bumping system of the embodiment of the present invention can provide a support structure while using the power generation unit 114 to capture the energy released by the coal rock under the action of rock burst and convert it into electrical energy, which not only improves energy utilization efficiency, but also helps monitoring and early warning.

[0039] In other embodiments, Figure 3 As shown, the power generation unit 114 includes a first power generation element 114a and a second power generation element 114b. The first power generation element 114a is placed between the tray 113 and the wall 100 of the tunnel, and the second power generation element 114b is placed in the anchor hole.

[0040] It is understandable that if Figure 3 As shown, a first generator 114a is mounted on an anchor rod 111 and positioned between a tray 113 and the tunnel wall 100. When a tunnel impact occurs, the first generator 114a deforms under the squeeze of the tunnel wall 100 and the tray 113, generating a corresponding amount of electricity. Similarly, a second generator 114b is mounted on an anchor rod 111 positioned within the anchor hole. When stress waves generated by rock bursts propagate within the coal and rock mass, the second generator 114b can capture energy at a deeper level, expanding the energy capture range.

[0041] In other words, the first generator 114a is located outside the tunnel wall, while the second generator 114b is located inside the anchor hole. They capture the energy generated by rock burst from different locations and depths, achieving comprehensive, multi-level capture of impact energy. This synergistic effect greatly improves the efficiency of the generator 114 in capturing impact energy, allowing more energy to be converted into electricity and increasing energy recovery.

[0042] In addition, the first power generation element 114a and the second power generation element 114b, while capturing energy, also play a certain role in strengthening the support structure of the roadway. That is, the first power generation element 114a and the second power generation element 114b respectively enhance the stability of the support system from the roadway wall and the interior of the coal rock mass, making the support system more resistant to damage under the impact of rock burst, thereby improving the reliability and safety of the entire coal mine rock burst roadway energy storage support and anti-impact system.

[0043] In some embodiments, the coal mine rock burst tunnel energy storage support and anti-bumping system of the embodiment of the present invention further includes an energy storage component, which is connected to the power generation unit 114 to store the electrical energy converted by the power generation unit 114 .

[0044] It is understood that the energy released by rock burst is instantaneous, and the electrical energy converted by the power generation unit 114 is also instantaneous. The energy storage component can store this instantaneous electrical energy, preventing it from being wasted due to inability to use it in a timely manner. This resolves the contradiction between the instantaneous nature of electrical energy generation and the sustainability of actual use, allowing the energy released by rock burst to be effectively utilized when needed.

[0045] As a result, the energy stored in the energy storage components can be used to power other equipment in the tunnel when it's needed. For example, lighting and monitoring equipment in the tunnel can all be powered by the energy stored in the energy storage components. This not only improves energy efficiency but also reduces dependence on external power systems. In the event of an external power supply failure, the energy stored in the energy storage components can ensure the normal operation of key equipment in the tunnel, improving the safety and reliability of the mine.

[0046] In some embodiments, the energy storage assembly includes an early warning component, which is used to detect the amount of power generated by the power generation unit 114. If the amount of power generated by the power generation unit 114 exceeds a preset value, the early warning component sends a warning signal.

[0047] It is understood that the energy generated by rock burst is closely related to the power generation of the power generation unit 114. When the power generation transmitted by the power generation unit 114 exceeds the preset value, it indicates that the intensity of the rock burst is high, which may pose a serious threat to the tunnel support structure and mine safety. The early warning component issues a warning signal to promptly alert mine workers to the danger of rock burst, allowing them to take appropriate protective measures, such as evacuating the danger zone and strengthening support inspections, thereby ensuring personnel safety.

[0048] In other words, high-intensity rock bursts can easily cause support structures to fracture, bend, or even become unstable. By using early warning devices to monitor power generation in real time and provide early warnings, workers can implement reinforcement measures before the support structures are seriously damaged, thus preventing damage and ensuring the stability and safety of the tunnel.

[0049] In some embodiments, the plurality of anchors 11 are divided into first anchors 11a and second anchors 11b, the length of the anchor rod 111 of the first anchor 11a is smaller than the length of the anchor rod 111 of the second anchor 11b, and at most one second anchor 11b is provided between two adjacent first anchors 11a.

[0050] It is understandable that if Figure 1 and Figure 2 As shown, the first anchor 11a has a shorter anchor rod 111, primarily anchoring the shallow coal and rock layers of the roadway wall. The second anchor 11b has a longer anchor rod 111, capable of penetrating deeper into the coal and rock layers. This combination of long and short anchor rods 111 allows for anchoring of coal and rock layers at varying depths within the roadway wall, allowing the shallow and deep layers to form a unified whole and jointly resist rock bursts. This effectively improves the overall stability of the roadway wall, reduces spalling of shallow coal and rock layers and displacement of deeper layers, and enhances the reliability of the support system.

[0051] In other words, when a rock burst occurs, anchor rods 111 of different lengths can disperse stress to different depths within the coal and rock mass. The shorter first anchor 11a (anchor rod 111) initially absorbs some of the impact stress and transfers it to the shallow coal and rock mass. The longer second anchor 11b (anchor rod 111) then transfers the stress further to the deeper, more stable coal and rock mass. This stress dispersion and transfer method prevents stress from concentrating at a specific depth within the coal and rock mass, reduces the risk of damage to the support structure due to stress concentration, and improves the support system's ability to withstand impacts.

[0052] The following describes a method for preventing rock bursts in coal mine tunnels using energy storage support according to an embodiment of the present invention.

[0053] The coal mine rock burst tunnel energy storage support and anti-bumping method of the embodiment of the present invention, and the coal mine rock burst tunnel energy storage support and anti-bumping system are completed by using any of the coal mine rock burst tunnel energy storage support and anti-bumping systems in the above embodiments, including the following steps:

[0054] S1. Select anchor rod 111 components according to the tunnel geology and mining conditions.

[0055] It is understandable that different roadway geological conditions, such as the hardness, integrity, and degree of joint and fissure development of the coal and rock masses, place varying demands on the performance of the anchor rod 111 assembly. For example, in areas with lower hardness and greater fragmentation of the coal and rock masses, it may be necessary to select an anchor rod 111 assembly with greater anchoring force and a longer anchor rod 111 length to ensure reliable anchoring deep into the stable coal and rock masses. In contrast, in areas with more intact coal and rock masses and higher hardness, a shorter anchor rod 111 assembly with lower anchoring force requirements may be selected to meet support requirements while reducing costs.

[0056] Mining conditions include mining depth, mining method, and mining speed. As mining depth increases, the ground stress in the roadway increases, along with the likelihood and intensity of rock bursts. In this case, it's necessary to select anchor bolt 111 assemblies with higher impact resistance. Different mining methods and mining speeds will result in different stress distributions and changes in the coal and rock mass surrounding the roadway, necessitating the selection of appropriate anchor bolt 111 assemblies based on the actual conditions.

[0057] In other words, by selecting the anchor rod 111 assembly according to the tunnel geology and mining conditions, the support system can better adapt to the actual engineering environment, improve the support effect and reliability, and avoid support failure or cost waste due to improper selection.

[0058] S2. Drill holes into the tunnel wall and install anchoring agent, anchor rod 111, power generation unit 114, tray 113 and nut 112 in sequence.

[0059] It is understandable that anchor holes of appropriate diameter and depth are drilled on the tunnel wall using professional drilling equipment. The position and spacing of the holes need to be precisely controlled according to the design requirements to ensure that the anchor rod 111 assembly is arranged reasonably. Anchoring agent is placed in the anchor hole. The function of the anchoring agent is to bond the anchor rod 111 to the surrounding coal rock mass and provide anchoring force. During the installation process, it is necessary to ensure that the anchoring agent fully fills the anchor hole and is tightly combined with the anchor rod 111 and the coal rock mass. The anchor rod 111 is inserted into the anchor hole containing the anchoring agent. The anchoring agent is evenly distributed by rotation or other means. After the anchoring agent solidifies, the anchor rod 111 is firmly connected to the coal rock mass. The power generation unit 114 and the tray 113 are sequentially mounted on the anchor rod 111. Finally, the nut 112 is tightened so that the tray 113 presses the power generation unit 114 and the tunnel wall to ensure a tight connection between the components.

[0060] Therefore, by strictly installing the components in sequence, the installation quality of the anchor rod 111 assembly can be guaranteed, so that the anchor rod 111 can effectively play an anchoring role. At the same time, the power generation part 114 can also be stably installed in the appropriate position, preparing for subsequent energy collection and conversion.

[0061] S3. The power generation unit 114 is used to collect the mechanical energy generated by the coal rock mass, and the coal rock mass is deformed under the action of the mechanical energy to generate electrical energy.

[0062] It is understood that when rock burst occurs, the elastic energy stored in the coal rock is instantly released, forming a high-intensity shock stress wave, causing the coal rock to vibrate and deform. The power generation unit 114 can capture this mechanical energy, for example, through internal piezoelectric materials or other energy conversion devices, which deform under the action of mechanical energy and thus convert it into electrical energy.

[0063] This energy collection and conversion method realizes the effective utilization of impact ground pressure energy, converting energy that may originally cause damage to the support structure into usable electrical energy. It not only reduces the damage to the support structure, but also provides a source of electricity for other equipment in the tunnel, thereby improving energy utilization efficiency.

[0064] S4. Based on the power generation of the power generation unit 114, the changes in the tunnel support force are monitored in real time.

[0065] It is understood that the power generation of the generator unit 114 in the coal mine rock burst roadway energy storage support and anti-rock burst method according to the present embodiment of the present invention is closely related to the stress and deformation of the coal and rock mass. When the roadway support force changes, the stress state of the coal and rock mass also changes, causing the energy level and frequency of rock burst to change, which in turn affects the power generation of the generator unit 114. By monitoring the power generation of the generator unit 114 in real time, it is possible to indirectly understand the changes in the roadway support force.

[0066] Therefore, the coal mine rock burst tunnel energy storage support and anti-impact method of the embodiment of the present invention can timely detect abnormal changes in the tunnel support force, and provide early warning of possible problems with the support structure so that corresponding measures can be taken to deal with them, such as strengthening support, adjusting mining parameters, etc., to ensure the safety and stability of the tunnel.

[0067] In some embodiments, in step S2, for the goaf-adjacent tunnel, an annular power generation unit 114 is arranged in the anchor hole in the roof of the lateral goaf.

[0068] Understandably, the stress conditions on the roof of the lateral goaf of an open tunnel are complex. The presence of the goaf deprives the roof of some support. Under the impact of rock bursts, the stress distribution on the roof is uneven, which can easily lead to stress concentration. The annular power generation unit 114 can better adapt to this complex stress environment. It can be arranged around the anchor rod 111 in the anchor hole, capturing the mechanical energy generated by roof deformation from multiple directions, improving energy collection efficiency.

[0069] In some embodiments, in step S3, the maximum power generation capacity Q of the power generation unit is arranged according to the impact of the roadway. C , QC It is used as the critical value for judging the impact of tunnel power generation and monitoring the power generation Q in different areas of the tunnel in real time. i , when K=Q i / Q C *When 100% ≥ 80%, the tunnel is determined to be in a dangerous state, and measures to strengthen tunnel support and unloading pressure are taken in the dangerous area.

[0070] It is understandable that the maximum power generation capacity Q of the power generation unit is determined comprehensively based on the historical data of tunnel impact, current geological conditions, mining conditions and other factors. C Of course, different tunnels may experience different impact strengths and energy releases due to differences in their geological structures, mining depths, and mining methods. C The determination of requires precise analysis and calculation based on the actual situation of the specific roadway to ensure that it can accurately reflect the critical power generation state of the roadway when the impact appears.

[0071] In the actual production process, when K=Q i / Q C When 100% is ≥ 80%, the power generation capacity in the area has approached or reached the critical power generation threshold, indicating that the coal and rock mass in the area has been significantly impacted, and the roadway may be in a dangerous state. Once a roadway is determined to be in a dangerous state, strengthened roadway support and pressure relief measures are implemented in the dangerous area. Strengthening roadway support can improve the roadway's bearing capacity and resist damage from rock bursts; pressure relief measures can release stress within the coal and rock mass, reducing the intensity of rock bursts. Implementing these measures can effectively reduce the risk of roadway damage and accidents, ensuring roadway safety and stability.

[0072] Thus, the present invention, based on a dangerous state judgment and response mechanism based on power generation monitoring, achieves real-time early warning and timely treatment of rock bursts in roadways. It can quickly respond to dangerous signs in roadways and take effective measures to prevent accidents, thereby improving the safety and reliability of coal mine production. This method also provides a scientific and effective means for coal mine safety management, contributing to the sustainable development of coal mines.

[0073] In some embodiments, in step S4 , the warning element is connected to the power generation unit 114 , and a preset power generation amount is set. When the power generation amount of the power generation unit 114 exceeds the preset power generation amount, the warning element sends a warning signal.

[0074] Understandably, setting the preset power generation capacity requires comprehensive consideration of multiple factors, including the roadway's geological conditions, mining practices, and support design. Different roadways experience varying power generation during normal operation and under impact, depending on their geological environment, the in-situ stresses they experience, and their support structures. Therefore, the preset power generation capacity must be scientifically and rationally set based on the specific roadway's actual conditions to accurately reflect the boundaries between normal and abnormal support conditions.

[0075] In other words, the preset power generation provides a clear judgment standard for the warning device, so that the warning device can accurately judge whether there is an abnormal situation in the tunnel based on this standard, thereby improving the accuracy and reliability of the early warning.

[0076] In some embodiments, the coal mine rock burst tunnel energy storage support and anti-rock burst method of the embodiment of the present invention further includes the following steps: S5, storing the electric energy converted by the power generation unit 114 to power the underground lighting and monitoring system.

[0077] It is understood that electrical energy is stored via an energy storage component connected to the power generation unit 114. The energy storage component must possess a certain capacity and stable performance to promptly store the instantaneous electrical energy generated by the power generation unit 114 during rock bursts, thereby avoiding energy waste. Alternatively, the energy storage component can be implemented in various forms, such as battery packs and supercapacitors, depending on actual needs and the specific conditions of the roadway.

[0078] Energy storage components thus resolve the conflict between the instantaneous nature of electricity generation and the need for continuous use. While the energy released by rock burst is instantaneous, underground lighting and monitoring systems require a continuous and stable power supply. Energy storage components store this instantaneous energy and provide a stable power output when needed, ensuring the system's normal operation.

[0079] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0080] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0081] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0083] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0084] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A coal mine rock burst tunnel energy storage support and anti-rock burst system, characterized in that: include: Anchor reinforcement mesh, the anchor reinforcement mesh is laid on the tunnel wall; Anchoring assembly, the anchoring assembly includes a plurality of anchoring pieces, and in the longitudinal section of the tunnel, the plurality of anchoring pieces are arranged at intervals on the tunnel wall. The anchoring piece includes an anchor rod, a nut, a tray, and a power generation part. The anchor rod is used to be inserted into the anchor hole on the tunnel wall. The nut, the tray, and the power generation part are sequentially mounted on the anchor rod. The extension direction of the power generation part is consistent with the extension direction of the anchor rod. The power generation part is used to capture the energy released by the coal rock mass and convert it into electrical energy. There are multiple anchoring assemblies, and the multiple anchoring assemblies are arranged at intervals along the extension direction of the tunnel.

2. The coal mine rock burst tunnel energy storage support and anti-rock burst system according to claim 1 is characterized in that: The power generation part includes a first power generation element and a second power generation element. The first power generation element is placed between the tray and the wall of the tunnel, and the second power generation element is placed in the anchor hole.

3. The coal mine rock burst tunnel energy storage support and anti-rock burst system according to claim 2, characterized in that: It also includes an energy storage component, which is connected to the power generation part to store the electric energy converted by the power generation part.

4. The coal mine rock burst tunnel energy storage support and anti-rock burst system according to claim 3, characterized in that: The energy storage component includes an early warning component, which is used to detect the amount of power generated by the power generation unit. If the amount of power generated by the power generation unit exceeds a preset value, the early warning component will send out a warning signal.

5. The coal mine rock burst tunnel energy storage support and anti-rock burst system according to claim 1, characterized in that: The plurality of anchors are divided into first anchors and second anchors, the anchor rod length of the first anchor is smaller than the anchor rod length of the second anchor, and at most one second anchor is provided between two adjacent first anchors.

6. A method for energy storage support and anti-bumping in coal mine rock burst tunnels, wherein the energy storage support and anti-bumping system for coal mine rock burst tunnels is completed by using the energy storage support and anti-bumping system for coal mine rock burst tunnels according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Select anchor bolt components according to the tunnel geology and mining conditions; S2. Drill holes into the tunnel wall and install anchoring agent, anchor rod, power generation unit, tray and nut in sequence; S3, using the power generation unit to collect mechanical energy generated by the coal rock mass, and deforming the coal rock mass under the action of the mechanical energy to generate electrical energy; S4. Monitor the changes in the tunnel support force in real time based on the power generation of the power generation unit.

7. The method for supporting and preventing rock burst in coal mine tunnels according to claim 6, characterized in that: In step S2, for the goaf-adjacent roadway, an annular power generation unit is arranged in the anchor hole in the roof of the lateral goaf area.

8. The method for supporting and preventing rock burst in coal mine tunnels with energy storage according to claim 7, characterized in that: In step S3, according to the impact of the roadway, the maximum power generation capacity Q of the power generation unit is arranged. C , Q C It is used as the critical value for judging the impact of tunnel power generation and monitoring the power generation Q in different areas of the tunnel in real time. i , when K=Q i / Q C *When 100% ≥ 80%, the tunnel is determined to be in a dangerous state, and measures to strengthen tunnel support and unloading pressure are taken in the dangerous area.

9. The method for supporting and preventing rock burst in coal mine tunnels with energy storage according to claim 8, characterized in that: In step S4, the warning member is connected to the power generation unit, and a preset power generation amount is set. When the power generation amount of the power generation unit exceeds the preset power generation amount, the warning member sends a warning signal.

10. The method for supporting and preventing rock burst in coal mine tunnels with energy storage according to any one of claims 6 to 9, characterized in that: The following steps are also included: S5. The electric energy converted by the power generation unit is stored to power the underground lighting and monitoring systems.

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