Diversion structure for water discharge from underground reservoir in coal mine

Abstract

The present invention relates to the field of coal mine engineering technology, and discloses a diversion structure for draining water from underground reservoirs in coal mines. The diversion structure comprises a water diversion tunnel, a trigger plate, and a water blocking assembly. The water diversion tunnel is used to connect to the underground reservoir, and a water diversion trough is provided within the water diversion tunnel. The trigger plate is located within the water diversion trough, and a first end of the trigger plate is rotatably connected to the bottom wall of the water diversion trough. The water blocking assembly is connected to a second end of the trigger plate, and the water blocking assembly includes a water blocking plate. Under normal conditions, the water blocking plate is located within the water diversion trough. During a water discharge, water falling into the water diversion trough drives the trigger plate to rotate, thereby causing the water blocking plate to extend out of the water diversion trough and close the water diversion tunnel. The trigger plate is activated by the gravity and impact of the discharged water, allowing the water blocking plate to quickly block the water diversion tunnel, sealing and isolating the water diversion tunnel, allowing personnel within the water diversion tunnel to evacuate in an emergency. This improves safety during the water discharge, prevents the discharge from damaging the working environment within the water diversion tunnel, and reduces the impact of the discharge on the water diversion tunnel.

Description

Technical Field

[0001] The present application relates to the technical field of coal mine engineering, and in particular to a diversion structure for discharging water from underground reservoirs in coal mines. Background Art

[0002] The underground water reservoir of the coal mine solves the problem of mine water storage and use in the coal mine. In order to ensure the safety of underground water storage in the coal mine underground reservoir, when emergencies such as mine earthquakes and rock bursts occur, it is necessary to discharge water and reduce pressure in the underground reservoir to ensure the safety of the underground reservoir.

[0003] With the expansion of mining activities in the same-layer coal and the lower-layer coal, the underground water reservoirs of existing coal mines have all utilized the goaf. In order to facilitate water use and safe production, the underground water reservoirs of coal mines are far away from water tanks and other forced drainage devices. In the event of large-scale water discharge, the production of the same-layer and lower-layer tunnels and working faces is easily affected. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] The technical solution of this application proposes a diversion structure for draining water from an underground water reservoir in a coal mine. The diversion structure includes: a water diversion tunnel, a trigger plate, and a water blocking assembly. The water diversion tunnel is used to connect to the underground reservoir, and a water diversion trough is provided in the water diversion tunnel. The trigger plate is located in the water diversion trough, and the first end of the trigger plate is rotatably connected to the bottom wall of the water diversion trough. The water blocking assembly is connected to the second end of the trigger plate, and the water blocking assembly includes a water blocking plate. In normal operation, the water blocking plate is located in the water diversion trough. In the draining state, when water falls into the water diversion trough, it can drive the trigger plate to rotate, and drive the water blocking plate to extend out of the water diversion trough to close the water diversion tunnel.

[0006] In some technical solutions provided in this application, the water-blocking assembly also includes: a transmission plate, one end of the transmission plate is rotatably connected to the trigger plate, the other end of the transmission plate is connected to the bottom of the water-blocking plate, and is slidably connected to the bottom wall of the water guide groove, and an angle is formed between the transmission plate and the water-blocking plate.

[0007] In some technical solutions provided in the present application, a limiting portion is provided on the bottom wall of the water guide trough, and the water blocking assembly further includes: a support rod, which is located on the side of the water blocking plate away from the trigger plate, and the top end of the support rod is rotatably connected to the water blocking plate and forms a distance with the bottom wall of the water guide trough. In the water discharge state, the bottom end of the support rod is engaged with the limiting portion.

[0008] In some technical solutions provided in this application, a step and a baffle are provided on the side wall of the water-facing side of the water guide trough. The baffle is provided at the edge of the top surface of the step, and the baffle extends upward in a direction away from the top surface.

[0009] In some technical solutions provided in this application, the diversion structure also includes: a cover plate, which is arranged on the water diversion channel, the top surface of the cover plate is coplanar with the bottom surface of the water diversion channel, and the cover plate is provided with drainage holes.

[0010] In some technical solutions provided in this application, the diversion structure also includes: a transmission assembly, the transmission assembly is connected to the cover plate, and the transmission assembly is connected to the trigger plate or the water blocking plate. In the water discharge state, the trigger plate or the water blocking plate drives the cover plate through the transmission assembly to avoid the water blocking plate.

[0011] In some technical solutions provided in the present application, there are multiple cover plates, and the transmission assembly includes: two fixed pulleys and a flexible cable. The two fixed pulleys are arranged opposite to each other on the side walls of the water guide groove. The flexible cable is wrapped around the two fixed pulleys. One end of the flexible cable is connected to the top of the water blocking plate, and the other end of the flexible cable is connected to at least one cover plate. When the water blocking plate extends out of the water guide groove, it drives the cover plate to move above the adjacent cover plate.

[0012] In some technical solutions provided in this application, the diversion structure also includes: a water diversion well and a drainage reservoir. The water diversion well is arranged on the bottom surface of the water diversion trough, and a water diversion hole is provided on the trigger plate or the transmission plate. When the water blocking plate closes the tunnel, the water diversion hole is connected to the water diversion well, and the drainage reservoir is connected to the bottom of the water diversion well.

[0013] In some technical solutions provided in this application, the diversion structure also includes: multiple energy dissipation plates and / or multiple columns, the multiple energy dissipation plates are arranged at intervals in the water diversion well, and the multiple columns are arranged at intervals in the drainage reservoir.

[0014] In some technical solutions provided in this application, the diversion structure also includes: a seal and / or an expanded tunnel, the seal is arranged on the wall of the water diversion tunnel, the water blocking plate abuts against the seal when the water diversion tunnel is closed, the expanded tunnel is connected to the water diversion tunnel, and is located on the side of the water diversion groove.

[0015] Compared with the related art, the present invention has at least the following beneficial effects:

[0016] The trigger plate is activated by the gravity and impact of the water discharge, and the water blocking plate is linked to close the water diversion tunnel in time, so that the water blocking plate can quickly block the water diversion tunnel, close and isolate the water diversion tunnel, and enable personnel in the water diversion tunnel to take emergency shelter, thereby improving the safety of the water discharge state, avoiding water discharge from damaging the working environment in the water diversion tunnel, and reducing the impact of water discharge on the water diversion tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of some embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a flow guide structure according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a diversion structure in a water-discharging state according to an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a diversion structure according to an embodiment of the present application in a normal state;

[0021] Figure 4 Shown Figure 3 A magnified view of the area circled in the middle;

[0022] Figure 5 A partial structural diagram of a diversion structure according to an embodiment of the present application.

[0023] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0024] 10 diversion structure, 100 water diversion tunnel, 110 water diversion trough, 111 limiting part, 112 step, 113 baffle, 200 trigger plate, 300 water blocking assembly, 310 water blocking plate, 320 transmission plate, 321 water diversion hole, 330 support rod, 400 cover plate, 410 drainage hole, 420 guide surface, 500 transmission assembly, 510 fixed pulley, 520 flexible rope, 600 water diversion well, 610 energy dissipation plate, 700 discharge reservoir, 710 room column, 800 sealing element, 900 expanded tunnel. DETAILED DESCRIPTION

[0025] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0026] The first embodiment of the present application proposes a diversion structure 10 for draining water from a coal mine underground reservoir, such as Figure 1 、 Figure 2 and Figure 3As shown, the diversion structure 10 includes a water channel 100, a trigger plate 200, and a water blocking assembly 300. The water channel 100 is used to connect to the underground water reservoir, and a water channel 110 is provided within the water channel 100. The trigger plate 200 is located within the water channel 110, and a first end of the trigger plate 200 is rotatably connected to the bottom wall of the water channel 110. The water blocking assembly 300 is connected to the second end of the trigger plate 200 and includes a water blocking plate 310. In normal operation, the water blocking plate 310 is located within the water channel 110. In the draining state, water falling into the water channel 110 drives the trigger plate 200 to rotate, causing the water blocking plate 310 to extend out of the water channel 110 and close the water channel 100.

[0027] In this embodiment, the water channel 100 is used for the passage of personnel and equipment in daily coal mine work, and is connected to the underground water reservoir and is located on the drainage path of the underground water reservoir. The bottom surface of the water channel 100 is provided with a downwardly concave water channel 110. The trigger plate 200 is located in the water channel 110 and is arranged on the water inlet side of the water channel 110 to Figure 2 For example, the right side is the water inlet side of the water channel 110. The first end of the trigger plate 200 is rotatably connected to the bottom wall of the water channel 110, and the second end of the trigger plate 200 is connected to the water blocking plate 310. When the trigger plate 200 rotates, its second end can drive the water blocking plate 310 to move upward.

[0028] For example, the trigger plate 200 and the water blocking plate 310 may be connected via a lever, and the trigger plate 200 and the water blocking plate 310 are respectively located on either side of a lever fulcrum. When the trigger plate 200 moves downward, the lever can drive the water blocking plate 310 to move upward.

[0029] In normal operation, the water-blocking assembly 300 is located within the water channel 110, with a gap between the second end of the trigger plate 200 and the bottom wall of the water channel 110, causing the trigger plate 200 to be tilted toward the water inlet side of the water channel 110. In the draining state, water from the underground reservoir flows into the water channel 100 and then falls into the water channel 110. As the water falls, gravity presses the second end of the trigger plate 200 downward, gradually reducing the distance between the second end of the trigger plate 200 and the bottom wall of the water channel 110. This causes the trigger plate 200 to rotate toward the bottom wall of the water channel 110, and during this rotation, the water-blocking plate 310 is driven upward and extended out of the water channel 110, thereby blocking the water channel 100 until the water channel 100 enters a closed state.

[0030] The trigger plate 200 is activated by the gravity and impact of the water discharge, and the water blocking plate 310 is linked to close the water channel 100 in time, so that the water blocking plate 310 can quickly block the water channel 100, close and isolate the water channel 100, and enable people in the water channel 100 to take emergency shelter, thereby improving the safety of the water discharge state, preventing the water discharge from damaging the working environment in the water channel 100, and reducing the impact of the water discharge on the water channel 100.

[0031] In some embodiments provided in this application, Figure 1 、 Figure 2 and Figure 3 As shown, the water-blocking assembly 300 further includes: a transmission plate 320, one end of which is rotatably connected to the trigger plate 200, and the other end of the transmission plate 320 is connected to the bottom of the water-blocking plate 310 and is slidably connected to the bottom wall of the water guide groove 110, forming an angle between the transmission plate 320 and the water-blocking plate 310.

[0032] In this embodiment, the transmission plate 320 is connected at both ends to the second end of the trigger plate 200 and the bottom end of the water-blocking plate 310. The transmission plate 320 and the water-blocking plate 310 extend in different directions, forming an angle between the transmission plate 320 and the water-blocking plate 310. For example, this angle can be 90°. In their respective extension directions, the length of the transmission plate 320 is less than the length of the water-blocking plate 310, forming an L-shape with the transmission plate 320 and the water-blocking plate 310. The transmission plate 320 and the water-blocking plate 310 can be integrally formed to enhance the structural strength of the water-blocking assembly 300. One end of the transmission plate 320 is hinged to the trigger plate 200, and the other end can be provided with a pulley to slide along the bottom wall of the water-guiding trough 110.

[0033] In normal operation, the highest points of the transmission plate 320 and the water-blocking plate 310 are at the same level. During water release, the trigger plate 200 rotates, driving one end of the transmission plate 320 downward. The other end of the transmission plate 320 slides along the bottom of the water channel 110, driving the top end of the water-blocking plate 310 upward and out of the water channel 110 until the water-blocking plate 310 is in an upright position. This transmission structure is simple and reliable, with high rotation efficiency. Furthermore, gravity, caused by water release, firmly presses the transmission plate 320 against the bottom of the water channel 110, providing stable structural support for the bottom of the water-blocking plate 310 and enhancing its stability and reliability.

[0034] In some embodiments provided in this application, Figure 5As shown, a limit portion 111 is provided on the bottom wall of the water guide groove 110, and the water blocking assembly 300 further includes: a support rod 330, which is located on the side of the water blocking plate 310 away from the trigger plate 200. The top end of the support rod 330 is rotatably connected to the water blocking plate 310 and forms a gap with the bottom wall of the water guide groove 110. In the water discharge state, the bottom end of the support rod 330 is engaged with the limit portion 111.

[0035] In this embodiment, the bottom wall of the water channel 110 is provided with a limiting portion 111 that cooperates with the support rod 330. For example, the limiting portion 111 may be a limiting block or a limiting groove, and multiple limiting portions 111 may be spaced apart on the bottom wall. The support rod 330 is located on the backside of the water blocking plate 310, and the top of the support rod 330 is rotatably connected to the middle position on the back side of the water blocking plate 310. When the water blocking plate 310 rotates outward from the water channel 110, the top of the support rod 330 rises with the water blocking plate 310, causing the bottom of the support rod 330 to move toward the water blocking plate 310 until it engages with the limiting portion 111 to form a check structure. This allows the support rod 330 to support the backside of the water blocking plate 310, providing structural support for the water blocking plate 310, improving the water blocking plate 310's ability to withstand water flow impact, and enhancing the stability of the water blocking plate 310 in the water blocking state.

[0036] In some embodiments provided in this application, Figure 2 and Figure 3 As shown, a step 112 and a baffle 113 are provided on the side wall of the water guide channel 110 on the water-facing side. The baffle 113 is provided at the top edge of the step 112 and extends upward in a direction away from the top surface.

[0037] In this embodiment, the sidewalls of the water-facing trough 110 are stepped, with baffles 113 positioned on either edge of the top surface of the steps 112. Baffles 113 extend upward from the top surface. When the drained water reaches the top of the steps 112, baffles 113 prevent the water from flowing directly downward, causing it to accumulate on the top surface of the steps 112. The water level gradually increases. When the water level exceeds the height of baffles 113, the water continues to flow toward the top surface of the next step 112 and continues to accumulate on the lower step 112. The steps 112 and baffles 113 allow the drained water to fall into the trough 110 step by step, providing multiple buffers for the water flow. This reduces the head energy of the drained water, lessens the impact of the water flow, and makes the flow into the trough 110 smoother.

[0038] In some embodiments provided in this application, Figure 1 and Figure 3 As shown, the diversion structure 10 further includes: a cover plate 400 , which is arranged on the water channel 110 , the top surface of the cover plate 400 is coplanar with the bottom surface of the water channel 100 , and a drainage hole 410 is provided on the cover plate 400 .

[0039] In this embodiment, a cover plate 400 is provided above the water channel 110. The top surface of the cover plate 400 is flush with the road surface of the water channel 100, allowing personnel and tools to pass through the water channel 110 by stepping on the cover plate 400. This ensures the integrity of the passage and meets the daily transportation needs of the water channel 100. A drainage hole 410 runs through the cover plate 400, allowing water to flow into the water channel 110 through the drainage hole 410, so that the water flow can smoothly drive the trigger plate 200 to rotate.

[0040] Exemplarily, a supporting steel beam is provided below the cover plate 400 to improve the stability and supporting strength of the cover plate 400 .

[0041] In some embodiments provided in this application, Figure 2 and Figure 3 As shown, the diversion structure 10 further includes: a transmission assembly 500, which is connected to the cover plate 400, and the transmission assembly 500 is connected to the trigger plate 200 or the water blocking plate 310. In the water discharge state, the trigger plate 200 or the water blocking plate 310 drives the cover plate 400 to avoid the water blocking plate 310 through the transmission assembly 500.

[0042] In this embodiment, when the water is released, the trigger plate 200 or the water blocking plate 310 can drive the transmission assembly 500 to move, thereby driving the cover plate 400 to move in a direction away from the water blocking plate 310 to avoid the movement path of the water blocking plate 310 and prevent the cover plate 400 from obstructing the lifting of the water blocking plate 310, so that the water blocking plate 310 can be smoothly extended out of the water guide groove 110 to block the water guide channel 100.

[0043] For example, the transmission assembly 500 may include a diverting pulley, which is located on the top wall of the water channel 100 and close to the water inlet side of the water channel 110. A sliding rope is wound around the diverting pulley, with one end of the sliding rope connected to the trigger plate 200 and the other end of the sliding rope connected to the end of the cover plate 400. When the water release triggers the trigger plate 200 to move, one end of the sliding rope moves downward with the trigger plate 200, while the other end of the sliding rope lifts the end of the cover plate 400 upward and pulls the cover plate 400 sideways, causing the cover plate 400 to rotate or move toward the waterfront.

[0044] In some embodiments provided in this application, Figure 2 、 Figure 3 and Figure 4As shown, there are multiple cover plates 400, and the transmission assembly 500 includes: two fixed pulleys 510 and a flexible cable 520. The two fixed pulleys 510 are relatively arranged on the side walls of the water guide groove 110. The flexible cable 520 is wound around the two fixed pulleys 510. One end of the flexible cable 520 is connected to the top of the water blocking plate 310, and the other end of the flexible cable 520 is connected to at least one cover plate 400. When the water blocking plate 310 extends out of the water guide groove 110, it drives the cover plate 400 to move above the adjacent cover plate 400.

[0045] In this embodiment, the cover plate 400 adopts a segmented design. Two fixed pulleys 510 are located on either side of the water channel 110. After one end of a flexible cable 520 is connected to the top of the water blocking plate 310, it is wrapped around one fixed pulley 510. The cable 520 extends toward the waterfront and wraps upward around the other fixed pulley 510, with the other end of the cable 520 connected to at least one cover plate 400. When the water blocking plate 310 is lifted upward, it pulls up one end of the flexible cable 520, causing the other end of the cable 520 to pull the cover plate 400, thereby driving the cover plate 400 to move. During the movement, the cover plate 400 is lifted to the top surface of the adjacent cover plate 400, and the cover plates 400 are stacked, providing clearance for the extension of the water blocking plate 310.

[0046] For example, the end of the cover plate 400 connected to the flexible cable 520 may be provided with a roller, and the cover plate 400 is rolled to the top of the adjacent cover plate 400 by the roller. Figure 4 As shown, the cover plate 400 connected to the flexible cable 520 can be provided with a guide surface 420, which is located on the water-facing side of the bottom surface of the cover plate 400. The guide surface 420 can be an inclined surface or a curved surface, so that the end of the cover plate 400 gradually shrinks. When the cover plate 400 moves, the guide surface 420 abuts against the adjacent cover plate 400, making it easier for the cover plate 400 to be lifted above the adjacent cover plate 400.

[0047] For example, the cover plate 400 pulled by the flexible cable 520 may be a single cover plate 400 or a plurality of cover plates 400 connected to each other.

[0048] For example, there may be two transmission assemblies 500 , which are respectively located on both sides of the cover plate 400 , so that the movement of the cover plate 400 is smoother.

[0049] In some embodiments provided in this application, Figure 1 As shown, the diversion structure 10 further includes: a water well 600 and a water discharge reservoir 700. The water well 600 is provided on the bottom surface of the water diversion groove 110. A water diversion hole 321 is provided on the trigger plate 200 or the transmission plate 320. When the water blocking plate 310 closes the tunnel, the water diversion hole 321 is connected to the water well 600, and the water discharge reservoir 700 is connected to the bottom of the water well 600.

[0050] In this embodiment, the water guide well 600 and the water discharge reservoir 700 can be set up by utilizing the existing interlayer passages and goaf areas of the coal mine. The water guide well 600 extends in the vertical direction, and the two ends of the water guide well 600 are connected to the water guide trough 110 and the water discharge reservoir 700 respectively. When discharging water, the trigger plate 200 and the transmission plate 320 are laid flat on the bottom surface of the water guide trough 110, and the water guide hole 321 avoids the wellhead of the water guide well 600, preventing the trigger plate 200 or the transmission plate 320 from obstructing the downward flow of water, so that the water can flow smoothly into the water guide well 600. The water flows into the water discharge reservoir 700 through the water guide well 600, guiding the direction of water discharge.

[0051] The water diversion well 600 and the water discharge reservoir 700 form an emergency water discharge channel, which reduces the pressure on the water blocking component 300, diverts the emergency water discharge water out of the accident area, reduces the water inflow and water inflow peak of a single tunnel underground, discharges a large amount of mine water in a relatively short period of time, controls the potential threat of water disasters, plays the role of energy reduction and water storage, and provides safety protection for the emergency water discharge of the underground reservoir.

[0052] For example, the water guide well 600 may be in the form of a spiral or a return.

[0053] In some embodiments provided in this application, Figure 1 and Figure 2 As shown, the diversion structure 10 further includes: a plurality of energy dissipation plates 610 and / or a plurality of columns 710 . The plurality of energy dissipation plates 610 are arranged at intervals in the water diversion well 600 , and the plurality of columns 710 are arranged at intervals in the water discharge reservoir 700 .

[0054] In this embodiment, the energy dissipation plate 610 can adopt a stepped or spiral structure. When the water flow in the water guide shaft 600 flows through the energy dissipation plate 610 during the falling process, the flow rate can be slowed down, thereby reducing the impact force of the flowing water. In the lower coal seam, a drainage space is established by adopting room-and-pillar 710 mining, and the pressure-bearing coal pillars are connected in an artificially sealed form to seal the drainage space. A retaining wall can be set at the connection between the water guide shaft 600 and the drainage reservoir 700. After the water flows into the drainage reservoir 700, the room-and-pillar 710 and the retaining wall can hinder the flow of the water flow and reduce the flow rate of the water flow. By providing the energy dissipation plate 610 and the room-and-pillar 710, the impact force and flow energy of the water flow can be weakened, so that the water flow can flow smoothly, thereby improving the safety and stability of the drainage.

[0055] In some embodiments provided in this application, Figure 1 and Figure 2 As shown, the diversion structure 10 further includes: a seal 800 and / or an expanded tunnel 900. The seal 800 is arranged on the wall of the water diversion tunnel 100. The water blocking plate 310 abuts against the seal 800 when closing the water diversion tunnel 100. The expanded tunnel 900 is connected to the water diversion tunnel 100 and is located on the side of the water diversion groove 110.

[0056] In this embodiment, seals 800 are provided on the surrounding walls of the water-conducting tunnel 100. The seals 800 may be sealing rubber. The seals 800 surround the inner wall of the water-conducting tunnel 100 and can cooperate with the water-blocking plate 310 to prevent water from leaking through the gap at the connection between the water-blocking plate 310 and the water-conducting tunnel 100, thereby preventing the impact of water or water-sand mixture leakage, improving the sealing of the water-conducting tunnel 100 during water leakage, and ensuring the water-blocking effect of the water-blocking assembly 300.

[0057] An expanded tunnel 900 is provided on the side wall of the water diversion tunnel 100. The expanded tunnel 900 is located on the side of the water diversion trough 110. After the discharged water flows into the expanded tunnel 900, the flow area increases and the flow rate decreases, achieving the effect of peak shaving and energy dissipation.

[0058] For example, the expanded tunnel 900 can be set on both sides to improve the effect of water discharge and energy dissipation. The expanded tunnel 900 can also be set on the top wall, and the upper space obtained by the expansion is used for emergency evacuation of personnel.

[0059] In a second aspect of the present application, an embodiment provides a method for designing a diversion structure for draining water from a coal mine underground reservoir. The method is used to design the diversion structure provided by any of the first aspect embodiments described above. The method includes:

[0060] Step 1: Conduct exploration and monitoring on the surface and underground of the underground reservoir, analyze regional geology, hydrology, and reservoir structure information, and determine the construction site for expanding the water diversion tunnel around the underground reservoir;

[0061] Step 2: Monitor the water conditions in the underground reservoir area, analyze the main outlets and paths for water discharge, and calculate the design information of the diversion structure. The design information includes: the specific shape and size of the diversion structure, the cross-sectional flow capacity, the cross-sectional dimensions of the water diversion well, and the capacity of the discharge reservoir.

[0062] Step 3: Based on the overall calculation of the water diversion system, dig the water diversion tunnel, water diversion well and drainage reservoir on the main drainage path, install water blocking components and trigger plates in the water diversion trough of the water diversion tunnel, and arrange the water diversion well and drainage reservoir by utilizing the existing interlayer channels and goaf.

[0063] Step 4: Based on the survey and monitoring data, establish the warning threshold for emergency water release from the reservoir. When the data of the underground reservoir reaches the warning threshold, activate the water release and diversion structure.

[0064] In this embodiment, the design of the diversion structure requires considering relevant conditions such as the geological and hydrological conditions of the goaf, the location and degree of siltation in the underground reservoir, the reservoir structure, relatively weak areas of the reservoir, the reservoir capacity, and the roof and floor. The diversion structure's location is determined by comprehensively considering the underground reservoir's storage capacity, water head height, and hazard level. The diversion structure design includes calculations for planning the discharge path, reserving water storage space, arranging diversion holes, rapid tunnel sealing, temporary structural reinforcement, and emergency personnel evacuation. The diversion structure also calculates, compares, and optimizes the discharge outlet area, optimal discharge path, diversion structure shape and size, and cross-sectional flow capacity.

[0065] Water condition monitoring indicators include: monitoring water level (water pressure), water inflow, discharge, rainfall, water temperature, stress-strain, microseismic data, and water chemical characteristic values.

[0066] Using the survey and monitoring results, a three-dimensional similarity simulation test bench for emergency water discharge was constructed to simulate and analyze the safety and stability of the diversion system and the emergency water discharge capacity under emergency water discharge conditions.

[0067] In order to establish a corresponding prediction of water discharge, it is necessary to conduct long-term monitoring of the water situation within the influence range of the coal mine underground reservoir, obtain the groundwater migration law, predict the maximum water inflow capacity of the mine, obtain key precursor information of emergency water discharge, and ensure the capacity and safety design of the water diversion structure.

[0068] In terms of monitoring and early warning indicators of the water situation monitoring system, it is necessary to monitor indicators such as water level (water pressure), water inflow, discharge, rainfall, water temperature, stress-strain, microseismic data, and hydrochemical characteristic values, determine the grading thresholds of each indicator, and build an emergency water discharge indicator evaluation system and a dynamic risk early warning model.

[0069] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0070] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions 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 unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0071] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] The above are merely some embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A diversion structure for discharging water from underground reservoirs in coal mines, characterized in that: include: A water diversion tunnel is used to connect to the underground reservoir, and a water diversion trough is provided in the water diversion tunnel; a trigger plate, located in the water guide groove, wherein a first end of the trigger plate is rotatably connected to the bottom wall of the water guide groove; a water-blocking assembly connected to the second end of the trigger plate, the water-blocking assembly comprising a water-blocking plate; a cover plate, which is arranged on the water channel, wherein the top surface of the cover plate is coplanar with the bottom surface of the water channel, and the cover plate is provided with a drainage hole; a transmission assembly, wherein the transmission assembly is connected to the cover plate, and the transmission assembly is connected to the water blocking plate. In a water-draining state, the water blocking plate drives the cover plate to avoid the water blocking plate through the transmission assembly; Wherein, in normal state, the water blocking plate is located in the water channel. In the water draining state, when water falls into the water channel, it can drive the trigger plate to rotate and drive the water blocking plate to extend out of the water channel to close the water channel. There are multiple cover plates, and the transmission assembly includes: Two fixed pulleys are arranged opposite to each other on the side walls of the water guide trough; A flexible cable is wound around the two fixed pulleys, one end of the flexible cable is connected to the top of the water blocking plate, and the other end of the flexible cable is connected to at least one of the cover plates. When the water blocking plate extends out of the water guide groove, it drives the cover plate to move above the adjacent cover plate.

2. The diversion structure for draining water from underground reservoirs in coal mines according to claim 1, characterized in that: The water-blocking assembly further comprises: A transmission plate, one end of which is rotatably connected to the trigger plate, and the other end of which is connected to the bottom of the water blocking plate and slidably connected to the bottom wall of the water guide groove, forming an angle between the transmission plate and the water blocking plate.

3. The diversion structure for draining water from underground reservoirs in coal mines according to claim 1, characterized in that: The bottom wall of the water guide groove is provided with a limiting portion, and the water blocking component further comprises: The support rod is located on the side of the water blocking plate away from the trigger plate. The top end of the support rod is rotatably connected to the water blocking plate and forms a gap with the bottom wall of the water guide groove. In the water discharge state, the bottom end of the support rod is engaged with the limit part.

4. The diversion structure for draining water from underground reservoirs in coal mines according to claim 1, characterized in that: A step and a baffle are provided on the side wall of the water guide trough on the water-facing side. The baffle is provided on the edge of the top surface of the step, and the baffle extends upward in a direction away from the top surface.

5. The diversion structure for draining water from underground reservoirs in coal mines according to claim 2, characterized in that: Also includes: A water guide well is provided on the bottom surface of the water guide groove, and a water guide hole is provided on the trigger plate or the transmission plate. When the water blocking plate closes the lane, the water guide hole is connected to the water guide well; The drainage reservoir is connected with the bottom of the water guide well.

6. The diversion structure for draining water from underground reservoirs in coal mines according to claim 5, characterized in that: Also includes: A plurality of energy dissipation plates are arranged at intervals in the water guide shaft; and / or A plurality of columns are arranged at intervals in the drainage reservoir.

7. The diversion structure for draining water from underground reservoirs in coal mines according to any one of claims 1 to 6, characterized in that: Also includes: a sealing member provided on a wall surface of the water-conducting tunnel, the water-blocking plate abutting against the sealing member when closing the water-conducting tunnel; and / or The expanded tunnel is communicated with the water guide tunnel and is located on the side of the water guide trough.

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