Mine tunnel device for controlling mine ground pressure and rock stratum

Abstract

The utility model relates to the technical field of mine ground pressure and rock stratum control, and discloses a mine tunnel device for mine ground pressure and rock stratum control, which comprises a plurality of support frames arranged at intervals, each support frame consists of longitudinal beams on two sides and a cross beam at the top, an arched support beam is arranged in the support frame at the lower part of each cross beam, and the longitudinal beams and the cross beams are arranged at intervals. The tops of the supporting beams are connected with the cross beams, and an arch-shaped supporting plate is arranged between every two adjacent supporting frames. The protective device is high in structural strength, high in stability, capable of increasing the protective area, capable of effectively improving the protective effect and capable of reducing potential safety hazards and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of mine pressure and strata control technology, and in particular to a mine tunnel device for mine pressure and strata control. Background Art

[0002] During coal mining operations, changes in the pressure of the surrounding rock, especially the roof pressure, directly affect the safety of personnel and equipment. Therefore, mine tunnel support structures that resist mine and rock strata pressure are particularly important. Existing mine tunnel support structures are usually completed by gantry supports arranged at intervals, using different types of steel beams to meet the support operations of mine tunnels under different geological conditions. This type of support structure is difficult to achieve comprehensive protection during use, especially at the top. Although some mine tunnels have been reinforced with anchor bolts and anchor nets, there is still a risk of a small amount of rock strata falling off, posing a potential hazard to workers descending. Therefore, there is an urgent need for a mine tunnel device with high structural strength and improved protection effect to control mine pressure and rock strata. Utility Model Content

[0003] The purpose of this invention is to provide a mine tunnel device for controlling mine pressure and rock strata. It has high structural strength and stability, can increase the protected area, effectively improve the protective effect, reduce safety hazards, and is highly practical.

[0004] The present invention adopts the following technical solution:

[0005] A mine tunnel device for controlling mine pressure and strata includes multiple spaced support frames. Each support frame consists of longitudinal beams on both sides and a crossbeam at the top. An arched support beam is provided in the support frame at the lower part of each crossbeam, and the top of the support beam is connected to the crossbeam. An arched support plate is provided between two adjacent support frames.

[0006] Preferably, the two sides of the support beam are detachably connected to the corresponding longitudinal beam by bolts, and the top of the support beam is detachably connected to the crossbeam by bolts.

[0007] Preferably, both ends of the support plate are provided with arched retaining rings, the retaining rings are coaxially arranged with the support plate, and their diameter is larger than that of the support plate.

[0008] Preferably, the top of the support plate is provided with a plurality of protrusions evenly distributed.

[0009] Preferably, the protrusion is a conical structure with a pointed tip.

[0010] Preferably, a collection box is provided on one inner wall of the support plate, the collection box is arranged along the axial direction of the support plate, and a guide hole is provided through the corresponding side wall of the collection box; a guide plate is provided on the side wall of the support plate outside the guide hole, and a sealing plate is provided on both sides of the guide plate; the side of the support plate away from the guide plate abuts against the guide plate on the adjacent support plate.

[0011] Preferably, a connecting plate is provided on the side of the support plate away from the sealing plate, and the connecting plate and the sealing plate are arranged in a complementary manner in the radial direction, one in front of the other; the support plate is detachably connected to the longitudinal beam through the sealing plate and the connecting plate.

[0012] Preferably, baffles extending into the collection box are provided on both sides of the flow guide hole.

[0013] Preferably, the collection box is provided with a filter screen, which has a concave arc-shaped structure.

[0014] Preferably, the bottom of the collection box is provided with a drain outlet, which is connected to the drain pipe through a guide pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting arched support beams on each support frame and arched support plates on two adjacent support frames, the structural strength of the entire mine tunnel device can be effectively enhanced. By arranging the support beams and support plates perpendicularly, the pressure from the top can be effectively decomposed and transmitted through their arched surfaces, ensuring the stability of the mine tunnel device. The setting of the support plates provides protective support for the top of the mine tunnel, avoiding safety hazards caused by the falling of rock strata at the top of the mine tunnel and ensuring the safety of construction. Attached Figure Description

[0016] Figure 1 This is a side view of an embodiment of this application;

[0017] Figure 2 This is a front view of the support frame according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the support plate structure in an embodiment of this application;

[0019] Figure 4 This is a cross-sectional view of the collection box in an embodiment of this application. DETAILED DESCRIPTION

[0020] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0021] like Figures 1 to 4As shown, the mine tunnel device for controlling mine pressure and strata according to this utility model includes multiple spaced support frames 1. Each support frame 1 consists of longitudinal beams 1-2 on both sides and a top crossbeam 1-1. The longitudinal beams 1-2 and the crossbeam 1-1 can be connected by bolts. Each support frame 1 at the lower part of each crossbeam 1-1 has an arched support beam 2, and the top of the support beam 2 is connected to the crossbeam 1-1 to ensure load-bearing strength. An arched support plate 3 is provided between two adjacent support frames 1. The support plate 3 can support the top blind area between adjacent support frames 1, increasing the support area of ​​the mine tunnel device, improving the protective effect, and reducing safety hazards. The arched design of the support plate 3 and the support beam 2 can transmit the received pressure downwards and outwards to adjacent areas, improving its load-bearing capacity.

[0022] Furthermore, mounting plates are provided on both sides of the support beam 2. The mounting plates are detachably connected to the corresponding longitudinal beams 1-2 by bolts. A U-shaped clamping plate is integrally formed on the top of the support beam 2. The clamping plate is detachably connected to the crossbeam 1-1 by bolts, which ensures the strength of the load-bearing structure while improving the convenience of subsequent maintenance and replacement.

[0023] Furthermore, arched retaining rings 4 are provided at both ends of the support plate 3. The retaining rings 4 are coaxially arranged with the support plate 3, and their diameter is larger than that of the support plate 3. The retaining rings 4 prevent rock fragments or small particles of dirt falling onto the support plate 3 from falling off from both sides of the support plate 3. In addition, multiple protrusions 5 are evenly provided on the top of the support plate 3, and the protrusions 5 are preferably designed as conical structures with pointed tips. This can reduce the strong impact of falling rock fragments on the support plate 3, and the pointed structure of the protrusions 5 can also break up the rock fragments by impact, reducing the probability of rock fragments adhering to the same position on the support plate 3, and ensuring that the strength of the support plate 3 is not affected.

[0024] Furthermore, a collection box 6 is provided on the inner wall of one side of the support plate 3. The collection box 6 is arranged along the axial direction of the support plate 3, and a guide hole 7 is provided through the corresponding side wall of the collection box 6. A guide plate 8 is provided on the side wall of the support plate 3 outside the guide hole 7, and a sealing plate 9 is provided on both sides of the guide plate 8. The side of the support plate 3 away from the guide plate 8 abuts against the guide plate 8 on the adjacent support plate 3. In order to ensure the tightness of the connection between the two adjacent support plates 3, the protrusion 5 can be omitted at the contact position of the two guide plates 8. The design of the guide hole 7 and the collection box 6 can collect the water dripping from the top of the mine tunnel onto the support plate 3 in a concentrated manner, avoiding the accumulation of water droplets from the top of the mine tunnel that cannot be discharged for a long time and corrodes the support plate 3. The guide plate 8 is arranged at an angle, and its bottom is connected to the bottom of the guide hole 7 so as to guide the water flow into the collection box 6. The sealing plates 9 on both sides can cooperate with the baffle ring 4 to prevent the water flow from flowing outside the guide channel formed by the guide plate 8 and the support plate 3. The guide hole 7 in the support plate 3 is provided with baffles 10 extending into the collection box 6 on both sides. The baffles 10 are used to restrict the water flow into the collection box 6 so as to ensure that the water flow smoothly into the collection box 6.

[0025] In addition, a connecting plate 11 is provided on the side of the support plate 3 away from the sealing plate 9. The connecting plate 11 and the sealing plate 9 are arranged in a complementary manner in the radial direction, one in front of the other. The support plate 3 is detachably connected to the longitudinal beam 1-2 through the sealing plate 9 and the connecting plate 11. During installation, the sealing plate 9 and the connecting plate 11 on adjacent support plates 3 overlap, and they are connected to the longitudinal beam 1-2 using bolts. In addition, a drain outlet 12 is provided at the bottom of the collection box 6. The drain outlet 12 is connected to the drain pipe 14 through the guide pipe 13. The drain pipe 14 is located on one side of the longitudinal beam 1-2 and is used to discharge the water flowing down from the top of the mine tunnel in a timely manner. A filter screen 15 is provided inside the collection box 6. The filter screen 15 can filter out solid particles washed down with the water flow, preventing blockage of the drain pipe 14, and at the same time facilitating the centralized cleaning of the filtered solid particles. The filter screen 15 has a concave arc-shaped structure to increase the filtration area and reduce the frequency of cleaning.

[0026] When this utility model is in use, as the mine tunnel is excavated, the support frame 1 is used for synchronous support. At the same time, a support beam 2 is installed on each support frame 1. Adjacent support frames 1 are connected by a support plate 3 to form a protective structure at the top. Finally, the collection box 6 and the drainage pipe 14 are connected by a guide pipe 13. The operation is simple. This utility model, through the optimized design of the structure, effectively improves the protective effect while ensuring the structural strength of the entire device, reduces safety hazards during construction, and is highly practical.

Claims

1. A mine tunnel device for controlling mine pressure and rock strata, characterized in that: It includes multiple spaced support frames, each of which consists of longitudinal beams on both sides and a crossbeam at the top. Each support frame under the crossbeam has an arched support beam, and the top of the support beam is connected to the crossbeam. An arched support plate is provided between two adjacent support frames.

2. The mine tunnel device for controlling mine pressure and strata according to claim 1, characterized in that: The support beam is detachably connected to the corresponding longitudinal beam on both sides by bolts, and the top of the support beam is detachably connected to the cross beam by bolts.

3. The mine tunnel device for controlling mine pressure and strata according to claim 1, characterized in that: Both ends of the support plate are provided with arched retaining rings, which are coaxially arranged with the support plate and have a diameter greater than that of the support plate.

4. The mine tunnel device for controlling mine pressure and strata according to claim 3, characterized in that: The top of the support plate is evenly provided with multiple protrusions.

5. The mine tunnel device for controlling mine pressure and strata according to claim 4, characterized in that: The protrusion is a conical structure with a pointed tip.

6. The mine tunnel device for controlling mine pressure and strata according to claim 5, characterized in that: A collection box is provided on one inner wall of the support plate, the collection box is arranged along the axial direction of the support plate, and a guide hole is provided through the corresponding side wall of the collection box; a guide plate is provided on the side wall of the support plate outside the guide hole, and a sealing plate is provided on both sides of the guide plate; the side of the support plate away from the guide plate abuts against the guide plate on the adjacent support plate.

7. The mine tunnel device for controlling mine pressure and strata according to claim 6, characterized in that: A connecting plate is provided on the side of the support plate away from the sealing plate. The connecting plate and the sealing plate are arranged in a complementary manner in the radial direction, one in front of the other. The support plate is detachably connected to the longitudinal beam through the sealing plate and the connecting plate.

8. The mine tunnel device for controlling mine pressure and strata according to claim 6, characterized in that: The flow guide hole is provided with baffles extending into the collection box on both sides.

9. The mine tunnel device for controlling mine pressure and strata according to claim 7, characterized in that: The collection box is equipped with a filter screen, which has a concave arc-shaped structure.

10. The mine tunnel device for controlling mine pressure and strata according to claim 6, characterized in that: The collection box is provided with a drain outlet at the bottom, and the drain outlet is connected to the drain pipe through a guide pipe.

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