High ground stress tunnel rockburst protection device

Abstract

The utility model relates to the technical field of tunnel rockburst protection devices, in particular to a high ground stress tunnel rockburst protection device. Comprising an assembling device, the assembling device comprises a mounting plate, the mounting plate is fixedly connected with a fixing column, two connecting rods are fixedly connected to one side of the mounting plate, a connecting plate is fixedly connected to the ends, away from the mounting plate, of the two connecting rods, and elastic pieces are fixedly connected to the two sides of the connecting plate; the side, away from the connecting plate, of the elastic piece is fixedly connected with a limiting block, and the side, close to the mounting plate, of the supporting frame is fixedly connected with a connecting plate. According to the high ground stress tunnel rockburst protection device, when the fixing column and the supporting frame need to be connected, the fixing column and the supporting frame can be rapidly connected through the assembling device, and the speed of connecting the fixing column and the supporting frame can be increased through the assembling device; and the safety of the fixing columns and the supporting frame when the tunnel is supported can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel rockburst protection devices, in particular to a high in-situ stress tunnel rockburst protection device. Background Technique

[0002] Tunnel rockburst protection devices are equipment and systems used to prevent and respond to possible rockburst phenomena during tunnel construction. Rockburst refers to the sudden release of energy by rock masses under high in-situ stress conditions, resulting in rock fractures and splashes, which may cause serious harm to construction workers and equipment.

[0003] The utility model with the publication number CN218150988U discloses a high in-situ stress tunnel rockburst protection device. The key points of its technical solution are as follows: it includes a frame, a protective net, an operation hole, and fixed foot hooks. The protective net is installed on the frame, an operation hole is opened on the protective net, and the fixed foot hooks are arranged at the bottom of the frame. The protection device is installed on the top of the excavation bench through the fixed foot hooks. During excavation construction, construction workers place the protection device on the excavation bench and fix it to the top frame of the excavation bench using the foot hooks. Construction workers stand inside the protection device and drill holes by passing a rock drill anchor through the operation hole, or perform danger removal operations after blasting using the operation hole, ensuring the personal safety of construction workers.

[0004] Regarding the above related content, there are the following technical defects: The high in-situ stress tunnel rockburst protection device is a device designed to prevent rockbursts from occurring in rock masses under high in-situ stress conditions. The high in-situ stress tunnel rockburst protection device mainly consists of fixed columns and support frames. However, the fixed columns and the support frames are connected by screws. The connection speed of the screws is relatively slow, and the screws will loosen after being connected for a long time. The loose screws will affect the connection stability between the fixed columns and the support frames, resulting in a reduction in the safety factor of the entire high in-situ stress tunnel rockburst protection device.

[0005] Therefore, it is necessary to provide a new high in-situ stress tunnel rockburst protection device to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to solve the disadvantages existing in the prior art that the fixed columns and the support frames are connected by screws, the connection speed of the screws is relatively slow, and the screws will loosen after being connected for a long time. The loose screws will affect the connection stability between the fixed columns and the support frames, resulting in a reduction in the safety factor of the entire high in-situ stress tunnel rockburst protection device.

[0007] To solve the above technical problems, the utility model provides a rockburst protection device for high in-situ stress tunnels, including: a plurality of fixed columns, a support frame is installed on the upper surface of each of the plurality of fixed columns, an assembly device is arranged on one side of the fixed column close to the support frame, the assembly device includes a mounting plate, the mounting plate is fixedly connected to the fixed column, two connecting rods are fixedly connected to one side of the mounting plate, a connecting plate is fixedly connected to the ends of the two connecting rods away from the mounting plate, elastic sheets are fixedly connected to both sides of the connecting plate, a limiting block is fixedly connected to the side of the elastic sheet away from the connecting plate, an adapter plate is fixedly connected to one side of the support frame close to the mounting plate, the inner wall of the adapter plate is slidably connected to the connecting plate, clamping grooves are formed on both sides of the inner wall of the adapter plate, the two clamping grooves are respectively clamped with the two limiting blocks, an assembly block is fixedly connected to one side of the adapter plate, a clamping plate is slidably connected to the inner wall of the assembly block, and one side of the clamping plate is fixedly connected to the mounting plate.

[0008] The effects achieved by the above components are as follows: The rockburst protection device for high in-situ stress tunnels is a device designed to prevent rockburst of rock masses under high in-situ stress conditions. The rockburst protection device for high in-situ stress tunnels is mainly composed of fixed columns and a support frame. However, the fixed columns and the support frame are connected by screws. The connection speed of the screws is slow, and the screws will loosen after long-term connection. The loose screws will affect the connection stability between the fixed columns and the support frame, resulting in a reduction in the safety factor of the entire rockburst protection device for high in-situ stress tunnels. At this time, the assembly device can be used to connect the fixed columns and the support frame instead of the screws, so as to improve the stability and safety of the use of the entire rockburst protection device for high in-situ stress tunnels.

[0009] Preferably, an adapter groove is formed on one side of the clamping plate close to the mounting plate, a rubber block is slidably connected to the inner wall of the adapter groove, and the rubber block is fixedly connected to the inner wall of the assembly block.

[0010] The effects achieved by the above components are as follows: After the clamping plate slides in the inner wall of the assembly block, the rubber block installed on the assembly block will deform and be connected to the adapter groove, so as to improve the contact stability and tightness between the assembly block and the clamping plate through the rubber block and the adapter groove.

[0011] Preferably, a contact pad is fixedly connected to one side of the mounting plate close to the adapter plate, and the cross-sectional dimension of the contact pad is the same as that of the mounting plate.

[0012] The effects achieved by the above components are as follows: When the mounting plate comes into contact with the adapter plate, the contact pad installed on the mounting plate can prevent the mounting plate from directly contacting the adapter plate, so as to avoid wear when the mounting plate contacts the adapter plate through the contact pad.

[0013] Preferably, a pressing block is fixedly connected to one end of the elastic sheet away from the connecting plate, and the cross-section of the pressing block is rectangular.

[0014] The effect achieved by the above components is that when it is necessary to press the elastic sheet, the pressing block installed on the elastic sheet can be used to press the elastic sheet, so that the efficiency of pressing the elastic sheet can be improved through the pressing block.

[0015] Preferably, auxiliary devices are provided on one side of each fixing column. The auxiliary device includes an adjusting block fixedly connected to the fixing column. A rotating rod is rotatably connected to the inner wall of the adjusting block. A plurality of adjusting holes are formed in the arc surface of the rotating rod, and the plurality of adjusting holes are evenly distributed on the arc surface of the rotating rod. A plug rod slidably penetrates through the inner wall of one of the adjusting holes. A fixing frame is slidably connected to the arc surface of the plug rod. One side of the fixing frame is fixedly connected to one of the fixing columns. The inner wall of the fixing frame is slidably connected to the rotating rod. A spring is sleeved on the arc surface of the plug rod, and both ends of the spring are fixedly connected to the fixing frame and the plug rod respectively.

[0016] The effect achieved by the above components is that when installing the fixing column, the distance between the two fixing columns can be controlled through the auxiliary device, so that the accuracy of the fixing column during use can be improved by accurately controlling the distance between the two fixing columns, and further improve the safety during the rockburst of the entire high in-situ stress tunnel.

[0017] Preferably, a marking plate is fixedly connected to one end of the arc surface of the rotating rod.

[0018] The effect achieved by the above components is that when adjusting the dimension between the two fixing columns through the rotating rod, the adjusted dimension can be viewed through the marking plate, so that the accuracy of adjusting the dimension between the fixing columns can be improved through the marking plate.

[0019] Preferably, a pull ring is rotatably connected to the inner wall of the plug rod.

[0020] The effect achieved by the above components is that when it is necessary to pull the plug rod, the plug rod can be pulled through the pull ring installed on the inner wall of the plug rod, and the pull ring can improve the speed and efficiency of pulling the plug rod.

[0021] Compared with the related technology, a high in-situ stress tunnel rockburst protection device provided by the present utility model has the following beneficial effects:

[0022] The present utility model provides a high in-situ stress tunnel rockburst protection device. By setting an assembly device, when it is necessary to connect the fixing column and the support frame, the fixing column and the support frame can be quickly connected through the assembly device. The assembly device can improve the connection speed of the fixing column and the support frame, and further improve the safety of the fixing column and the support frame when supporting the tunnel.

[0023] By setting up an auxiliary device, when using the fixed columns, the distance between the two fixed columns can be controlled through the auxiliary device. Thus, by controlling the distance between the fixed columns, the supporting effect of the fixed columns and the support frame on the tunnel can be improved, and the safety of the high-stress tunnel during rock burst can be further enhanced through the auxiliary device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic structural diagram of a rock burst protection device for a high-stress tunnel provided by the present utility model;

[0025] Figure 2 is Figure 1 a schematic structural diagram of the assembling device shown;

[0026] Figure 3 is Figure 1 a schematic disassembled structural diagram of the assembling device shown;

[0027] Figure 4 is Figure 1 a schematic structural diagram of the auxiliary device shown;

[0028] Figure 5 is Figure 1 a partially enlarged schematic structural diagram of the auxiliary device shown.

[0029] Reference numerals in the figures: 1, fixed column; 2, assembling device; 201, mounting plate; 202, connecting rod; 203, connecting plate; 204, elastic sheet; 205, limiting block; 206, connecting plate; 207, clamping groove; 208, assembling block; 209, clamping plate; 210, connecting groove; 211, rubber block; 212, contact pad; 213, pressing block; 3, auxiliary device; 31, adjusting block; 32, rotating rod; 33, adjusting hole; 34, fixed frame; 35, inserting rod; 36, spring; 37, identification plate; 38, pull ring; 4, support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] The following describes in detail the specific implementation of the present utility model with reference to specific embodiments.

[0032] Please refer to Figures 1 to 5, a rockburst protection device for high in-situ stress tunnels provided by an embodiment of the present utility model includes: a plurality of fixed columns 1, a support frame 4 is installed on the upper surface of each of the plurality of fixed columns 1, an assembly device 2 is provided on one side of the fixed column 1 close to the support frame 4, and an auxiliary device 3 is provided on one side of each fixed column 1.

[0033] In the embodiment of the present utility model, please refer to Figure 2 and Figure 3, the assembly device 2 includes a mounting plate 201, the mounting plate 201 is fixedly connected to the fixing column 1, two connecting rods 202 are fixedly connected to one side of the mounting plate 201, a connecting plate 203 is fixedly connected to the ends of the two connecting rods 202 away from the mounting plate 201, elastic pieces 204 are fixedly connected to both sides of the connecting plate 203, a limiting block 205 is fixedly connected to the side of the elastic piece 204 away from the connecting plate 203, an adapter plate 206 is fixedly connected to the side of the support frame 4 close to the mounting plate 201, the inner wall of the adapter plate 206 is slidably connected to the connecting plate 203, clamping grooves 207 are formed on both sides of the inner wall of the adapter plate 206, and the two clamping grooves 207 are respectively clamped with the two limiting blocks 205, an assembly block 208 is fixedly connected to one side of the adapter plate 206, a clamping plate 209 is slidably connected to the inner wall of the assembly block 208, one side of the clamping plate 209 is fixedly connected to the mounting plate 201. The high in-situ stress tunnel rockburst protection device is a device designed to prevent rockburst of rock mass under high in-situ stress conditions. The high in-situ stress tunnel rockburst protection device mainly consists of a fixing column 1 and a support frame 4. However, the fixing column 1 and the support frame 4 are connected by a screw. The connection speed of the screw connection is slow, and the screw will loosen after long-term connection. The loose screw will affect the connection stability between the fixing column 1 and the support frame 4, resulting in a reduction in the safety factor of the entire high in-situ stress tunnel rockburst protection device. At this time, the assembly device 2 can be used to connect the fixing column 1 and the support frame 4 instead of the screw, so as to improve the stability and safety of the use of the entire high in-situ stress tunnel rockburst protection device through the assembly device 2. An engagement groove 210 is formed on the side of the clamping plate 209 close to the mounting plate 201, a rubber block 211 is slidably connected to the inner wall of the engagement groove 210, and the rubber block 211 is fixedly connected to the inner wall of the assembly block 208. After the clamping plate 209 slides in the inner wall of the assembly block 208, the rubber block 211 installed on the assembly block 208 will deform and be connected to the engagement groove 210, so as to improve the contact stability and tightness between the assembly block 208 and the clamping plate 209 through the rubber block 211 and the engagement groove 210. A contact pad 212 is fixedly connected to the side of the mounting plate 201 close to the adapter plate 206. The cross-sectional size of the contact pad 212 is the same as that of the mounting plate 201. When the mounting plate 201 comes into contact with the adapter plate 206, the contact pad 212 installed on the mounting plate 201 can prevent the mounting plate 201 from directly contacting the adapter plate 206, so as to avoid wear when the mounting plate 201 and the adapter plate 206 come into contact through the contact pad 212. A pressing block 213 is fixedly connected to the end of the elastic piece 204 away from the connecting plate 203. The cross-section of the pressing block 213 is rectangular. When it is necessary to press the elastic piece 204, the pressing block 213 installed on the elastic piece 204 can be used to press the elastic piece 204, so as to improve the efficiency of pressing the elastic piece 204 through the pressing block 213;

[0034] In an embodiment of the present invention, please refer to Figure 4and Figure 5 The auxiliary device 3 includes an adjusting block 31. The adjusting block 31 is fixedly connected to the fixed column 1. A rotating rod 32 is rotatably connected to the inner wall of the adjusting block 31. A plurality of adjusting holes 33 are formed in the arc surface of the rotating rod 32. The plurality of adjusting holes 33 are evenly distributed on the arc surface of the rotating rod 32. A plug rod 35 slidably penetrates through the inner wall of one of the adjusting holes 33. A fixed frame 34 is slidably connected to the arc surface of the plug rod 35. One side of the fixed frame 34 is fixedly connected to one of the fixed columns 1. The inner wall of the fixed frame 34 is slidably connected to the rotating rod 32. A spring 36 is sleeved on the arc surface of the plug rod 35. The two ends of the spring 36 are respectively fixedly connected to the fixed frame 34 and the plug rod 35. When installing the fixed column 1, the distance between the two fixed columns 1 can be controlled by the auxiliary device 3, so that the accuracy of the fixed column 1 during use can be improved by accurately controlling the distance between the two fixed columns 1, and further improve the safety during the rock burst of the entire high in-situ stress tunnel. One end of the arc surface of the rotating rod 32 is fixedly connected to a marking plate 37. When adjusting the size between the two fixed columns 1 through the rotating rod 32, the adjusted size can be viewed through the marking plate 37, so that the accuracy of adjusting the size between the fixed column 1 and the fixed column 1 can be improved through the marking plate 37. A pull ring 38 is rotatably connected to the inner wall of the plug rod 35. When it is necessary to pull the plug rod 35, the plug rod 35 can be pulled through the pull ring 38 installed on the inner wall of the plug rod 35. The pull ring 38 can improve the speed and efficiency of pulling the plug rod 35;

[0035] The working principle of a rock burst protection device for a high in-situ stress tunnel provided by the present utility model is as follows: When it is necessary to connect the fixed column 1 with the support frame 4, the elastic piece 204 is pressed towards the connecting plate 203. The elastic piece 204 will deform during movement. The deformed elastic piece 204 is connected to the inner wall of the connecting plate 206, and the clamping plate 209 installed on the mounting plate 201 is connected to the inner wall of the assembling block 208. At this time, the elastic piece 204 can be released. The reset of the elastic piece 204 will drive the limiting block 205 to be connected to the card slot 207. The connecting plate 203 can be fixed in the inner wall of the connecting plate 206 through the connection between the limiting block 205 and the card slot 207. At this time, the connection between the fixed column 1 and the support frame 4 is completed.

[0036] When it is necessary to control the distance between the two fixed columns 1, the rotating rod 32 is rotated on the adjusting block 31, and the rotating rod 32 is rotated to the side of the other fixed column 1. The plug rod 35 installed in the fixed frame 34 of the other fixed column 1 is pulled. The movement of the plug rod 35 will drive the spring 36 to stretch. The adjusting holes 33 on the rotating rod 32 are adjusted, and the distance between the two fixed columns 1 is controlled through the adjusting holes 33. The adjusted adjusting holes 33 are placed below the plug rod 35. At this time, the plug rod 35 can be released. The reset of the spring 36 will drive the plug rod 35 to be connected to the adjusting hole 33, and the adjustment of the distance between the two fixed columns 1 can be completed.

[0037] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here.

[0038] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A high ground stress tunnel rock burst protection device, characterized in that: include: A plurality of fixing columns (1), each of the upper surfaces of the fixing columns (1) being provided with a support frame (4), an assembly device (2) being provided on a side of the fixing columns (1) close to the support frame (4), the assembly device (2) comprising a mounting plate (201), the mounting plate (201) being fixedly connected to the fixing columns (1), one side of the mounting plate (201) being fixedly connected to two connecting rods (202), one end of the two connecting rods (202) being fixedly connected to a connecting plate (203) away from the mounting plate (201), both sides of the connecting plate (203) being fixedly connected to elastic sheets (204), the elastic sheets (204) being away from the connecting plate ( A limiting block (205) is fixedly connected to one side of the support frame (4) near the mounting plate (201), a connecting plate (206) is fixedly connected to the one side of the support frame (4), the inner wall of the connecting plate (206) is slidably connected to the connecting plate (203), both sides of the inner wall of the connecting plate (206) are provided with card slots (207), the two card slots (207) are respectively engaged with the two limiting blocks (205), one side of the connecting plate (206) is fixedly connected to an assembly block (208), the inner wall of the assembly block (208) is slidably connected to a card plate (209), one side of the card plate (209) is fixedly connected to the mounting plate (201).

2. A high ground stress tunnel rock burst protection device according to claim 1, characterized in that: A connecting groove (210) is provided on one side of the clamping plate (209) close to the mounting plate (201), and a rubber block (211) is slidably connected to the inner wall of the connecting groove (210), and the rubber block (211) is fixedly connected to the inner wall of the assembly block (208).

3. The high ground stress tunnel rock burst protection device according to claim 1, characterized in that: A contact pad (212) is fixedly connected to one side of the mounting plate (201) close to the connection plate (206), and the cross-sectional dimensions of the contact pad (212) are the same as the cross-sectional dimensions of the mounting plate (201).

4. The high ground stress tunnel rock burst protection device according to claim 1, characterized in that: One end of the elastic sheet (204) away from the connecting plate (203) is fixedly connected to a pressing block (213), and the cross section of the pressing block (213) is rectangular.

5. The high ground stress tunnel rock burst protection device according to claim 1, characterized in that: An auxiliary device (3) is provided on one side of the fixed column (1), and the auxiliary device (3) comprises an adjusting block (31), the adjusting block (31) is fixedly connected to the fixed column (1), the inner wall of the adjusting block (31) is rotatably connected to a rotating rod (32), the circular arc surface of the rotating rod (32) is provided with a plurality of adjusting holes (33), and the plurality of adjusting holes (33) are evenly distributed on the circular arc surface of the rotating rod (32), an insert rod (35) is slidably penetrated through the inner wall of one of the adjusting holes (33), the circular arc surface of the insert rod (35) is slidably connected to a fixed frame (34), one side of the fixed frame (34) is fixedly connected to one of the fixed columns (1), the inner wall of the fixed frame (34) is slidably connected to the rotating rod (32), the circular arc surface of the insert rod (35) is sleeved with a spring (36), and the two ends of the spring (36) are respectively fixedly connected to the fixed frame (34) and the insert rod 3 (5).

6. A high ground stress tunnel rock burst protection device according to claim 5, characterized in that: One end of the arc surface of the rotating rod (32) is fixedly connected to a marking plate (37).

7. The high ground stress tunnel rock burst protection device according to claim 5, characterized in that: The inner wall of the insertion rod (35) is rotatably connected with a pull ring (38).

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