Tunnel supporting structure

Abstract

The utility model discloses a tunnel supporting structure which is characterized in that facade fixing pieces are fixed on a tunnel wall surface through facade connecting pieces, the tunnel supporting structure further comprises a center piece, the facade fixing pieces are arranged on the two sides of the center piece respectively, the facade fixing pieces are transversely connected and fixed to the center piece in a sliding mode, a top supporting frame is arranged above the center piece, and the top supporting frame is connected with the center piece in a sliding mode. The top supporting frame comprises a supporting base, and the supporting base is connected to the center piece in a telescopic mode. Through the arrangement of the transverse supporting frames and the top supporting frames, the distance between the two sets of vertical face fixing pieces can be adjusted under the condition of adapting to the width between tunnel vertical faces in the current working condition, the angle of each set of top supporting frame is rotationally adjusted, the length of the hydraulic rod is prolonged, and the angle of the supporting base is adjusted so that the top face of the supporting base can abut against the top of a tunnel. The angle and the length of the top supporting frame can be adjusted to support different heights or different top modeling radians, the device is suitable for tunnels of different specifications, the practicability of the device is improved, and the application occasion range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, and particularly relates to a tunnel support structure. Background Technique

[0002] Tunnel support refers to a series of engineering measures for strengthening and protecting the tunnel structure during tunnel construction or operation. In the case of complex geological conditions or soft strata, the support measures can effectively enhance the stability of the tunnel structure, prevent strata collapse or tunnel deformation, and protect construction personnel and equipment from the impact of collapsed objects and other hazards.

[0003] The existing utility model patent with the application number 202322152481.5 discloses a tunnel support structure, including a support frame, which is installed in the tunnel through a fixing member to support the tunnel; the fixing member includes a mounting sleeve and a connecting rod. One end of the mounting sleeve is fixedly installed on the side wall of the support frame opposite to the tunnel wall. The connecting rod passes through the mounting sleeve, and one end of the connecting rod extends into the interior of the support frame, and the other end extends outside the support frame. A connecting sleeve is screwed on the outer end of the connecting rod, and the connecting sleeve and the mounting sleeve are connected by a connecting plate. In this device, one end of the fixing member extends into the surrounding rock layer at the inner wall of the tunnel, and then the connecting rod is rotated, so that the connecting sleeve at the head of the connecting rod drives one end of the two connecting plates to move towards each other and is clamped in the surrounding rock layer at the inner wall of the tunnel, thereby firmly fixing the support frame on the inner wall of the tunnel and increasing the stability of the support for the surrounding rock layer at the inner wall of the tunnel.

[0004] The above-mentioned existing tunnel support structure is not convenient to adjust the width and height of the overall device to be applicable to tunnels with different widths and heights, has a limited scope of use, and does not have targeted support in different tunnels, resulting in poor stability of the support effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tunnel support structure to solve the problems in the above-mentioned background technique that the existing tunnel support structure is not convenient to adjust the width and height of the overall device to be applicable to tunnels with different widths and heights, has a limited scope of use, and does not have targeted support in different tunnels, resulting in poor stability of the support effect.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A tunnel support structure includes a vertical fixing member and a top support frame. The vertical fixing member is fixed to the tunnel wall through a vertical connecting member. It further includes a central member. Vertical fixing members are respectively arranged on both sides of the central member. The vertical fixing members are horizontally slidably connected and fixed to the central member. A top support frame is arranged above the central member. The top support frame includes a support seat, and the support seat is telescopically connected to the central member.

[0007] Preferably, the vertical fixing member is slidably connected to the central member through a telescopic connecting frame. The telescopic connecting frame includes a first fixing seat, a first connecting rod, a second connecting rod, and a second fixing seat. The first fixing seat is fixed to the vertical surface of the central member. One end of the first connecting rod is hinged to the first fixing seat, and the other end is hinged to the second connecting rod. The other end of the second connecting rod is hinged to the second fixing seat, and the second fixing seat is fixed to the vertical surface of the vertical fixing member.

[0008] Preferably, a plurality of slot holes are formed in the vertical surface of the central member. One end of the horizontal support frame is inserted into a limit seat on the surface of the vertical fixing member, and the other end of the horizontal support frame passes through the slot hole from one side of the central member and is fixed by a horizontal support frame fixing member on the surface of the other side of the central member. Adjacent two groups of horizontal support frames respectively correspond to vertical fixing members in different directions.

[0009] Preferably, the horizontal support frame fixing member is fixedly connected to one side of the central member where the end of the horizontal support frame passes through. The horizontal support frame fixing member includes a lower fixing member, an upper fixing member, and a connecting kit. The lower fixing member is welded to the central member, the upper fixing member is hinged to the lower fixing member, and the lower fixing member and the upper fixing member adjust the entire ring size through the connecting kit.

[0010] Preferably, a top seat is arranged at the top of the central member, and a plurality of grooves are arranged above the top seat. The top support frames are respectively hinged at the groove positions.

[0011] Preferably, for the top support frame, the top support frame includes a hydraulic rod and a support seat. The body of the hydraulic rod is hinged to the top seat, and the output end of the hydraulic rod is hinged to the support seat.

[0012] Preferably, the top support frame further includes a gasket, and the gasket is fixed on the surface of the support seat. The gasket is made of a flexible material.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] Through the arrangement of the horizontal support frame and the top support frame, when adapting to the width between the tunnel facades in the current working conditions, the distance between the two groups of facade fixing parts can be adjusted. The telescopic connecting frame is opened, and the horizontal support frame is pushed and fixed at the end inside the limit seat with force, so that the facade fixing part on this side can be closely attached to the tunnel wall; the angles of each group of top support frames are rotated respectively to make them evenly distributed in the direction of the tunnel top. Under the action of the hydraulic rod, the length of the hydraulic rod is extended, and the support seat adjusts the angle so that its top surface abuts against the tunnel top. The split support seats are evenly distributed to support the tunnel top surface, improving the stability of the support effect. The angle and length of the top support frame can be adjusted to support different heights or different top shaping arcs. The structure of this device is applicable to tunnels of different specifications, improving the practicability of this device and having a wider range of applicable occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic side view structure diagram of the whole of the present utility model.

[0016] Figure 2 It is a schematic structure diagram of the top support frame of the present utility model.

[0017] Figure 3 It is a schematic connection structure diagram of the telescopic connecting frame of the present utility model.

[0018] Figure 4 It is a schematic structure diagram of the horizontal support frame fixing part of the present utility model.

[0019] Figure 5 It is a schematic diagram of the contraction state of the tunnel support structure of the present utility model.

[0020] In the figure: 1, central part; 11, top seat; 12, slot hole; 2, telescopic connecting frame; 21, first fixing seat; 22, first connecting rod; 23, second connecting rod; 24, second fixing seat; 3, facade fixing part; 31, facade connecting part; 32, limit seat; 4, horizontal support frame fixing part; 41, lower fixing part; 42, upper fixing part; 43, connecting kit; 5, horizontal support frame; 6, top support frame; 61, hydraulic rod; 62, support seat; 63, gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] An embodiment provided by the present utility model: AsFigure 1 As shown in the figure, a tunnel support structure includes a central member 1, a telescopic connecting frame 2, a vertical fixing member 3, a transverse support fixing member 4, a transverse support 5, and a top support 6.

[0023] As Figure 1 and Figure 2 shown in the figure, a plurality of slots 12 are formed on the vertical surface of the central member 1. One end of the transverse support 5 is inserted into the limit seat 32 on the vertical surface of the vertical fixing member 3, and the other end of the transverse support 5 passes through the slot 12 from one side of the central member 1. When the tunnel support structure is in use, first install the transverse support 5 and insert it into the slot 12 and then insert it into the limit seat 32 from the other side of the central member 1.

[0024] The vertical fixing member 3 is horizontally slidably connected to the central member 1 through the telescopic connecting frame 2. As Figure 3 shown in the figure, the vertical fixing member 3 is slidably connected to the central member 1 through the telescopic connecting frame 2. The telescopic connecting frame 2 includes a first fixing seat 21, a first connecting rod 22, a second connecting rod 23, and a second fixing seat 24. The first fixing seat 21 is fixed on the vertical surface of the central member 1. One end of the first connecting rod 22 is hinged to the first fixing seat 21, and the other end is hinged to the second connecting rod 23. The other end of the second connecting rod 23 is hinged to the second fixing seat 24, and the second fixing seat 24 is fixed on the vertical surface of the vertical fixing member 3. Under the connection of the telescopic connecting frame 2, the distance between the two groups of vertical fixing members 3 can be adjusted, thereby adapting to the width between the tunnel vertical surfaces in the current working conditions.

[0025] As Figure 1 shown in the figure, the vertical fixing member 3 is supported and fixed to the central member 1 through the transverse support 5. The transverse support fixing member 4 is fixedly connected to one side of the central member 1 where the end of the transverse support 5 passes through. As Figure 4 shown in the figure, the transverse support fixing member 4 includes a lower fixing member 41, an upper fixing member 42, and a connecting kit 43. The lower fixing member 41 is welded to the central member 1. The upper fixing member 42 is hinged to the lower fixing member 41. The overall ring size is adjusted between the lower fixing member 41 and the upper fixing member 42 through the connecting kit 43. Push the end of the transverse support 5 in the limit seat 32 with force to make the vertical fixing member 3 on this side close to the tunnel wall, and then adjust the transverse support fixing member 4 through which the other end of the transverse support 5 passes. Tighten the connecting kit 43, and the lower fixing member 41 and the upper fixing member 42 tightly press the transverse support 5, thereby fixing the transverse support 5 and realizing the lateral support of the device on both sides of the tunnel.

[0026] As Figure 1As shown, the facade fixture 3 is fixed to the tunnel wall surface through the facade connecting piece 31. Facade fixtures 3 are respectively arranged on both sides of the central piece 1. On the surface of the facade fixture 3, the facade connecting piece 31 is used to fix it to the tunnel wall surface to prevent the device from sliding down.

[0027] As Figure 1 shown, two adjacent sets of transverse support frames 5 respectively correspond to facade fixtures 3 in different directions. The transverse support frame fixing piece 4 on the other facade surface of the central piece 1 fixes the transverse support frame 5. Two adjacent sets of transverse support frames 5 respectively correspond to facade fixtures 3 in different directions. At the transverse support frame fixing pieces 4 at adjacent positions, one set supports one facade fixture 3, and the other set supports the other facade fixture 3. Multiple sets of such paired structures are arranged between the central piece 1 and the facade fixture 3, so that the central piece 1 is in force balance. Thus, during use, the fixing of the central piece 1 is more stable, and the support effect of the device on the tunnel top is increased.

[0028] As Figure 2 shown, a top support frame 6 is arranged above the central piece 1. A top seat 11 is arranged on the top of the central piece 1. Multiple sets of grooves are arranged above the top seat 11, and the top support frame 6 is respectively hinged and connected at the groove positions. The top support frame 6 includes a hydraulic rod 61 and a support seat 62. The body of the hydraulic rod 61 is hinged and connected to the top seat 11, and the output end of the hydraulic rod 61 is hinged and connected to the support seat 62. The support seat 62 is telescopically connected to the central piece 1. The angles of each set of top support frames 6 are respectively rotated and adjusted so that they are evenly distributed in the direction of the tunnel top. Under the action of the hydraulic rod 61, the length of the hydraulic rod 61 is extended, and the support seat 62 adjusts its angle so that its top surface abuts against the tunnel top. The split support seats 62 evenly support the tunnel top surface, improving the stability of the support effect; it can also cope with tunnel top surfaces with different arc shapes. As Figure 2 shown, the top support frame 6 further includes a gasket 63. The gasket 63 is fixed on the surface of the support seat 62. The gasket 63 is made of a flexible material. Under the action of the gasket 63, the fit degree between the two is higher, and each position of the top support frame 6 supports the tunnel top more stably and firmly.

[0029] When adapting to the width between the tunnel facades in the current working conditions, the distance between the two facade fixtures 3 can be adjusted, and the angles and lengths of the top support frames 6 can be adjusted to support different heights or different top arc shapes. Such a structure of the device is applicable to tunnels of different specifications, improving the practicability of the device and having a wider range of applicable occasions; at the same time, corresponding adjustments are made according to different situations, making the support effect more stable.

[0030] As Figure 5As shown, after use, the horizontal support frame fixing member 4 can be opened, the horizontal support frame 5 can be disassembled, and the vertical fixing members 3 on both sides can be disassembled and moved closer to the middle; multiple sets of top support frames 6 are combined into one set, and the support base 62 is retracted to the shortest length. In this way, the overall structure of the device is reduced, the space occupancy rate is low, it is convenient for storage and transportation, and it is also very convenient to install and use again.

[0031] The above are only the embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the solutions is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A tunnel support structure, comprising a facade fixing member (3) and a top support frame (6), wherein the facade fixing member (3) is fixed to the tunnel wall through a facade connecting member (31), characterized in that: It also includes a center piece (1), and vertical fixing pieces (3) are respectively arranged on both sides of the center piece (1), and the vertical fixing pieces (3) are laterally slidably connected and fixed to the center piece (1). A top support frame (6) is arranged above the center piece (1), and the top support frame (6) includes a support seat (62), and the support seat (62) is telescopically connected to the center piece (1).

2. A tunnel support structure according to claim 1, characterized in that: The facade fixing member (3) is slidably connected to the central member (1) via a telescopic connecting frame (2); the telescopic connecting frame (2) comprises a first fixing seat (21), a first connecting rod (22), a second connecting rod (23) and a second fixing seat (24); the first fixing seat (21) is fixed to the facade of the central member (1); one end of the first connecting rod (22) is hingedly connected to the first fixing seat (21), and the other end is hingedly connected to the second connecting rod (23); the other end of the second connecting rod (23) is hingedly connected to the second fixing seat (24); and the second fixing seat (24) is fixed to the facade of the facade fixing member (3).

3. A tunnel support structure according to claim 1, characterized in that: The central component (1) is provided with a plurality of slots (12) on the vertical surface, one end of the transverse support frame (5) is inserted into a limiting seat (32) on the vertical surface of the vertical surface fixing member (3), and the other end of the transverse support frame (5) passes through the slot (12) from one side of the central component (1) and is fixed by a transverse support frame fixing member (4) on the vertical surface of the other side of the central component (1), and two adjacent groups of transverse support frames (5) correspond to the vertical surface fixing members (3) in different directions respectively.

4. A tunnel support structure according to claim 3, characterized in that: The transverse support frame fixing member (4) is fixedly connected to one side of the central member (1) passing through the end of the transverse support frame (5), and the transverse support frame fixing member (4) comprises a lower fixing member (41), an upper fixing member (42) and a connecting kit (43), wherein the lower fixing member (41) is welded to the central member (1), and the upper fixing member (42) is hingedly connected to the lower fixing member (41), and the lower fixing member (41) and the upper fixing member (42) are used to adjust the size of the entire ring through the connecting kit (43).

5. A tunnel support structure according to claim 1, characterized in that: A top seat (11) is arranged on the top of the center piece (1), and a plurality of groups of grooves are arranged above the top seat (11), and the top support frames (6) are hingedly connected at the positions of the grooves.

6. A tunnel support structure according to claim 5, characterized in that: The top support frame (6) comprises a hydraulic rod (61) and a support seat (62), the main body of the hydraulic rod (61) is hingedly connected to the top seat (11), and the output end of the hydraulic rod (61) is hingedly connected to the support seat (62).

7. A tunnel support structure according to claim 6, characterized in that: The top support frame (6) further comprises a gasket (63), wherein the gasket (63) is fixed on the surface of the support seat (62), and the gasket (63) is made of a flexible material.

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