A tunnel collapse support structure

Abstract

This utility model discloses a tunnel collapse support structure, including a support component. Each support component comprises two support rods and two roof plates. The two support rods are symmetrically arranged, and a connecting frame is provided between the upper end of each support rod and the roof plate. A base is located at the bottom of the support component. An auxiliary support component is located on one side of each support rod, comprising a crossbar, a fixing rod, and a clamp. The fixing rod is located at the bottom of the crossbar, and the clamp is located on one side of the bottom of the fixing rod and is fitted onto the outside of the support rod. This utility model supports the collapsed area by using a roof plate that can adapt to the collapsed material. Combined with the auxiliary support component, which can be adjusted vertically and directionally on the support rods, the position of the auxiliary support component can be adjusted promptly according to the usage of the roof plate, providing more precise support and improving the support effect. This flexible adjustment method, compared to a fixed structure, can better meet the support needs under different collapse conditions.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of tunnel construction technology, and more specifically, to a tunnel collapse support structure. Background Technology

[0002] Tunnels are engineering structures buried underground, representing a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. Because the excavation process alters the internal stress of the tunnel matrix, the stress exerted on the tunnel during its operation can easily lead to tunnel collapses.

[0003] Traditional support structures often employ fixed configurations. While this design is simple, it lacks adaptability to various collapse scenarios, resulting in ineffective support. Therefore, a tunnel collapse support structure is designed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a tunnel collapse support structure.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a tunnel collapse support structure, including a support component. The support component includes two support rods and two top plates. The two support rods are symmetrically arranged, and a connecting frame is provided between the upper end of the support rod and the top plate.

[0007] A base, wherein the base is disposed at the bottom of the support member;

[0008] An auxiliary support component is provided on one side of the support rod. The auxiliary support component includes a crossbar, a fixing rod, and a clamp. The fixing rod is located at the bottom of the crossbar, and the clamp is located on one side of the bottom of the fixing rod and is sleeved on the outside of the support rod.

[0009] As a preferred technical solution of this utility model, the connecting frame is U-shaped, and a tightening screw is provided between the rear end of the connecting frame and the support rod. The top plate is arc-shaped, and the bottom ends of the two top plates are respectively screwed to the two connecting frames. The two top plates are located between the two support rods.

[0010] As a preferred embodiment of this utility model, the base includes two symmetrically arranged support frames, a connecting plate is provided between the two support frames, and a fixing column is provided on the inner side of the support frame.

[0011] As a preferred embodiment of this utility model, a splicing rod is provided between the two symmetrical fixing rods, and a spring is provided between the connecting plate and the support frame.

[0012] As a preferred embodiment of this utility model, the clamp is screwed to the support rod, and a connector is provided between the clamp and the fixing rod. The connector is an "L"-shaped design and is threaded to both the clamp and the fixing rod.

[0013] As a preferred embodiment of this utility model, a fixing rod is provided at the bottom of the crossbar and at the top of the connector, a movable sleeve is threaded between the two fixing rods, and a support plate is screwed to the upper end of the crossbar.

[0014] As a preferred technical solution of this utility model, the top plate is made of either polyether ester thermoplastic elastomer or shape memory alloy.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses a roof slab that can adapt to the collapsed material to support the collapsed area. Combined with auxiliary support components that can be adjusted in height and direction on the support rods, the position of the auxiliary support components can be adjusted in a timely manner according to the usage of the roof slab, providing more precise support and improving the support effect. Compared with a fixed structure, this flexible adjustment method can better meet the support needs under different collapse conditions, solving the problem that fixed support structures have poor adaptability under different collapse conditions, resulting in poor support effect.

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the support component of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the base of this utility model;

[0023] Figure 4 This is a schematic diagram of the planar structure of this utility model;

[0024] In the diagram: 10. Support component; 101. Support rod; 102. Connecting frame; 103. Top plate; 104. Tightening screw;

[0025] 20. Base; 201. Support frame; 202. Connecting plate; 203. Fixing column; 204. Splicing rod; 205. Spring;

[0026] 30. Auxiliary support components; 301. Crossbar; 302. Support plate; 303. Movable sleeve; 304. Fixed rod; 305. Connector; 306. Clamp. Detailed Implementation

[0027] like Figure 1-4 As shown, this utility model provides a tunnel collapse support structure, including a support member 10. The support member 10 includes two support rods 101 and two top plates 103. The two support rods 101 are symmetrically arranged, and a connecting frame 102 is provided between the upper end of the support rod 101 and the top plate 103.

[0028] Base 20, which is located at the bottom of support member 10;

[0029] The auxiliary support 30 is disposed on one side of the support rod 101. The auxiliary support 30 includes a crossbar 301, a fixing rod 304 and a clamp 306. The fixing rod 304 is disposed at the bottom of the crossbar 301, and the clamp 306 is disposed on one side of the bottom of the fixing rod 304 and sleeved on the outside of the support rod 101.

[0030] Furthermore, in this embodiment, the connecting frame 102 has a "U" shaped design. A tightening screw 104 is provided between the rear end of the connecting frame 102 and the support rod 101. The connecting frame 102 is installed on the support rod 101 by tightening the screw 104. The screw 104 is a high-strength bolt. The top plate 103 has an arc-shaped design. The bottom ends of the two top plates 103 are respectively screwed to the two connecting frames 102. The two top plates 103 are located between the two support rods 101. The two top plates 103 are connected together by the connecting frame 102, so that the front of the top plate 103, the connecting frame 102 and the support rod 101 has an arched design.

[0031] In this embodiment, the base 20 includes two symmetrically arranged support frames 201, and a connecting plate 202 is provided between the two support frames 201. The two support frames 201 are combined together by the connecting plate 202, and a fixing post 203 is provided on the inner side of the support frame 201.

[0032] In this embodiment, a splicing rod 204 is provided between two symmetrical fixed rods 203, and a spring 205 is provided between the connecting plate 202 and the support frame 201. Through the splicing rod 204, the distance between the fixed posts 203 on the two symmetrical support frames 201 can be adjusted to adjust the size of the combined support frame 201. The splicing rods 204 are inserted into each other, and the splicing rods 204 are inserted into the fixed rods 203, and then fixed with screws / bolts.

[0033] refer to Figure 3 The splicing rod 204 is replaced with a shape identical to the connecting plate 202. The adjustment and fixing of the support are also consistent with it and carried out simultaneously. This allows the base 20 to be adjusted according to the size of the collapsed area that needs support. A spring 205 is installed between the connecting plate 202 and the support frame 201. The spring 205 dampens the connecting plate 202, and a damping pad is fixed at the end of the spring 205 to prevent the spring 205 from being in a continuous jumping stage.

[0034] It should be noted that, considering the overall support effect, the spring preload needs to ensure that it can effectively dampen the connection plate 202.

[0035] In this embodiment, the clamp 306 is a 304 stainless steel clamp with an inner diameter matching the outer diameter of the support rod 101. The clamp 306 is screwed to the support rod 101 and is also slidably connected to the support rod 101, allowing the clamp 306 to move up and down on the outer surface of the support rod 101 to adjust its position. A connector 305 is provided between the clamp 306 and the fixing rod 304. The connector 305 has an "L" shape design and is threaded to both the clamp 306 and the fixing rod 304. The clamp 306 connects the connector 305 to the support rod 101. Installed on one side of the support rod 101, the clamp 306 can be adjusted in height and direction on the support rod 101. Thus, depending on the usage of the top plate 103, the clamp 306 can rotate 360 ​​degrees horizontally when the movable sleeve 303 and the fixed rod 304 are in the retracted state, adjusting the position of the auxiliary support 30 to support the top plate 103 and improve the support effect of the top plate 103. The fixed rod 304 is installed on one side of the support rod 101 through the connector 305 to realize the installation of the auxiliary support 30.

[0036] In this embodiment, a fixed rod 304 is provided at the bottom of the crossbar 301 and the upper end of the connector 305. A movable sleeve 303 is threaded between the two fixed rods 304. The movable sleeve 303 is a double-threaded sleeve, which allows the height of the movable sleeve 303 to be adjusted on the fixed post 203 on the connector 305 by rotation. The fixed post 203 under the crossbar 301 can be adjusted in height within the movable sleeve 303. A support plate 302 is screwed to the upper end of the crossbar 301. The support plate 302 can be better adapted to the use of the top plate 103 by adjusting the height of the crossbar 301, thus providing auxiliary support for the top plate 103.

[0037] In this embodiment, the top plate 103 is made of either polyether ester thermoplastic elastomer or shape memory alloy. The material of the top plate 103 has good adaptability and the ability to maintain support force. It can be adaptively adjusted according to the shape of the collapse location while maintaining stable support force. Compared with the top plate 103 made of ordinary materials, this special material can better adapt to complex collapse environments and improve the reliability and durability of the support structure.

[0038] Specifically, a top plate 103 with a shape adapted to the tunnel curvature is set to ensure the fit between the top plate 103 and the arch. The support component 10 and the base 20 are pre-assembled, and the support rod 101 is fixed to the support plate 302 with screws. According to the size requirements of the collapse area, splicing rods 204 are used for assembly and fixed with screws, so that the distance between the two support rods 101 changes. At the same time, the top plate 103 on the support rod 101 is replaced to adapt to the actual situation of the collapse area. The support rod 101 is selected with a length adapted to the height of the collapse area. The top plate 103 at the upper end of the support rod 101 is placed against the collapse area to provide initial support for the tunnel top.

[0039] Considering that the middle area of ​​the arched support structure is suspended and the support force is not stable enough, an auxiliary support 30 is set on the support rod 101 to support this position. The auxiliary support 30 is manually rotated to the inside of the support 10 by clamp 306. The position of clamp 306 is adjusted up and down according to the position of the top plate 103, and the screw is fixed. Then, the movable sleeve 303 is rotated. The threaded engagement direction between the upper and lower fixed rods 304 of the movable sleeve 303 is opposite. Because the upper and lower threads are opposite, they can be rotated in the same direction to extend and retract synchronously. When the movable sleeve 303 rotates upward outside the lower fixed rod 304, the upper fixed rod 304 does not move inside the movable sleeve 303, thereby adjusting the height of the horizontal bar 301 on the upper fixed 304 so that the support plate 302 abuts against the bottom of the top plate 103.

[0040] Furthermore, the dimensions of the support plate 302 and the top plate 103 need to be adjusted according to the actual stress conditions. The contact area between the support plate 302 and the top plate 103 should not be less than 70% of the projected area of ​​the top plate 103, to ensure that the support plate 302 can be supported under the top plate 103 and to ensure effective support.

[0041] The entire support structure, through the combined action of support rods 101, top plate 103, base 20 and auxiliary support components 30, provides comprehensive support to the tunnel collapse area, ensuring the stability and safety of the tunnel.

[0042] The components of this utility model, such as the support rod 101, connecting frame 102, top plate 103, tightening screw 104, base 20, support frame 201, support plate 302, fixing column 203, splicing rod 204, adjusting rod 205, spring 205, moving wheel 207, auxiliary support component 30, crossbar 301, support plate 302, movable sleeve 303, fixing rod 304, connector 305, and clamp 306, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0043] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tunnel collapse support structure, characterized in that, The support (10) includes two support rods (101) and two top plates (103). The two support rods (101) are symmetrically arranged, and a connecting frame (102) is provided between the upper end of the support rod (101) and the top plate (103). A base (20) is disposed at the bottom of the support member (10); An auxiliary support (30) is provided on one side of the support rod (101). The auxiliary support (30) includes a crossbar (301), a fixing rod (304), and a clamp (306). The fixing rod (304) is provided at the bottom of the crossbar (301), and the clamp (306) is provided on one side of the bottom of the fixing rod (304) and sleeved on the outside of the support rod (101).

2. The tunnel collapse support structure according to claim 1, characterized in that, The connecting frame (102) is U-shaped. A tightening screw (104) is provided between the rear end of the connecting frame (102) and the support rod (101). The top plate (103) is arc-shaped. The bottom ends of the two top plates (103) are respectively screwed to the two connecting frames (102). The two top plates (103) are located between the two support rods (101).

3. The tunnel collapse support structure according to claim 2, characterized in that, The base (20) includes two symmetrically arranged support frames (201), a connecting plate (202) is provided between the two support frames (201), and a fixing column (203) is provided on the inner side of the support frame (201).

4. The tunnel collapse support structure according to claim 3, characterized in that, A splicing rod (204) is provided between the two symmetrical fixed rods (304), and a spring (205) is provided between the connecting plate (202) and the support frame (201).

5. A tunnel collapse support structure according to claim 4, characterized in that, The clamp (306) is screwed to the support rod (101), and a connector (305) is provided between the clamp (306) and the fixing rod (304). The connector (305) is an "L" shaped design, and the connector (305) is threaded to the clamp (306) and the fixing rod (304) respectively.

6. The tunnel collapse support structure according to claim 5, characterized in that, The bottom of the crossbar (301) and the top of the connector (305) are both provided with fixing rods (304), and a movable sleeve (303) is threaded between the two fixing rods (304). The upper end of the crossbar (301) is screwed to a support plate (302).

7. A tunnel collapse support structure according to claim 6, characterized in that, The top plate (103) is made of either polyether ester thermoplastic elastomer or shape memory alloy.

Images