Tunneling supporting structure of crossheading roadway

Abstract

The tunneling supporting structure comprises a supporting side plate and a supporting top plate, the supporting top plate is installed at the top of the supporting side plate, a supporting shaft is fixed to the top of the supporting side plate, one end of the supporting top plate is provided with a connecting groove, the connecting groove is composed of a vertical end and an inclined end, and when the supporting top plate is horizontal, the vertical end is connected with the inclined end. The supporting shaft is located at the top end of the connecting groove, and the diameter of the supporting shaft is the same as the width of the connecting groove. The utility model belongs to the technical field of roadway supporting, and particularly relates to a tunneling supporting structure of a crossheading roadway.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel support, in particular to an excavation support structure for a drift tunnel. Background Art

[0002] In the process of mining coal and other resources, excavation of the drift tunnel is an important task. The drift refers to the working face tunnel. In order to ensure the safety of working in the tunnel, it is necessary to install a support structure inside the tunnel.

[0003] The existing drift tunnel support structure requires a lot of time to assemble when installed inside the tunnel, which not only affects the efficiency of excavation, but also increases construction costs and time costs. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an excavation support structure for a drift tunnel, which effectively solves the problem that the support structure is inconvenient to assemble.

[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a tunnel excavation support structure for a longitudinal tunnel, comprising a supporting side plate and a supporting top plate, wherein the supporting top plate is installed on the top of the supporting side plate, a supporting shaft is fixed on the top of the supporting side plate, a connecting groove is provided at one end of the supporting top plate, and the connecting groove consists of a vertical end and an inclined end. When the supporting top plate is horizontal, the supporting shaft is located at the top of the connecting groove, and the diameter of the supporting shaft is the same as the width of the connecting groove.

[0006] Preferably, the supporting top plate and supporting side plates are symmetrically arranged, and top block one and top block two are respectively fixed under the top wall of the supporting top plate, threaded rod two is fixed on top block one, and a threaded sleeve is horizontally slid on top block two, and threaded rod two and threaded sleeve are threadedly connected.

[0007] Preferably, the outer wall surface of one end of the threaded sleeve is provided with anti-slip grooves.

[0008] Preferably, a support plate is provided under the support side plate, a threaded rod 1 is rotatably provided on the support plate, the threaded rod 1 is threadedly connected to the bottom of the support side plate, and an end block is fixed to the top of the threaded rod 1.

[0009] Preferably, a limiting column penetrating the bottom of the supporting side plate is further provided on the top of the supporting plate.

[0010] Preferably, the cross-sections of the supporting side plates and the supporting top plate are both U-shaped.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: through the structural setting of the support shaft and the connecting groove, it is convenient to quickly assemble the support top plate, which can greatly shorten the installation and disassembly time, which can speed up the tunnel excavation speed, improve construction efficiency and reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a tunnel support structure proposed in this utility model. Figure 1 ;

[0013] Figure 2 This is a partial structural diagram of a tunnel support structure proposed by this utility model. Figure 1 ;

[0014] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0015] Figure 4 This is a schematic diagram of the overall structure of a tunnel support structure proposed in this utility model. Figure 2 ;

[0016] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0017] Among them, 1. Support side plate, 2. Support top plate, 3. Support shaft, 4. Connecting groove, 5. Threaded rod 2, 6. Threaded sleeve, 7. Anti-slip groove, 8. Top block 1, 9. Top block 2, 10. End block, 11. Threaded rod 1, 12. Support plate, 13. Limit column. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-5 As shown, the utility model proposes an excavation support structure for a longitudinal tunnel, including a supporting side plate 1 and a supporting top plate 2. The cross-sections of the supporting side plate 1 and the supporting top plate 2 are both U-shaped. The supporting top plate 2 is installed on the top of the supporting side plate 1. A supporting shaft 3 is fixed to the top of the supporting side plate 1. A connecting groove 4 is provided at one end of the supporting top plate 2. The connecting groove 4 consists of a vertical end and an inclined end. When the supporting top plate 2 is horizontal, the supporting shaft 3 is located at the top of the connecting groove 4. The diameter of the supporting shaft 3 is the same as the width of the connecting groove 4.

[0021] like Figure 4 、 5 As shown, the support top plate 2 and the support side plate 1 are symmetrically arranged, and a top block 8 and a top block 2 9 are fixed under the top wall of the support top plate 2 respectively, a threaded rod 2 5 is fixed on the top block 1 8, and a threaded sleeve 6 is horizontally slid on the top block 2 9. The threaded rod 2 5 and the threaded sleeve 6 are threadedly connected to connect the two groups of support top plates 2, thereby increasing the supporting strength and stability of the support top plates 2. The outer wall surface of one end of the threaded sleeve 6 is provided with an anti-slip groove 7 to increase friction and facilitate the rotation of the threaded sleeve 6.

[0022] like Figure 1 、 2 As shown in Figure 3, a support plate 12 is provided under the support side plate 1, and a threaded rod 11 is rotatably provided on the support plate 12. The threaded rod 11 and the bottom of the support side plate 1 are threadedly connected. An end block 10 is fixed to the top of the threaded rod 11. Rotating the end block 10 drives the threaded rod 11 to rotate, thereby driving the support plate 12 to move relative to the support side plate 1, and adjusting the height of the constant side plate. A limiting column 13 that passes through the bottom of the support side plate 1 is also provided on the top of the support plate 12 to increase the stability of the adjustment of the support plate 12.

[0023] During specific use, first fix the support plate 12 on the tunnel ground at a certain interval, then rotate the support top plate 2 so that the connecting groove 4 rotates relative to the support shaft 3, and then push the support top plate 2 downward, and the connecting groove 4 is relative to the support shaft 3 along the inclined end to the vertical end, so that the support shaft 3 is placed on the top of the connecting groove 4, and the support top plate 2 is horizontally installed on the top of the support side plate 1, and the rotating end block 10 drives the threaded rod 11 to rotate, and the threaded rod 11 drives the support side plate 1 upward, and presses the support top plate 2 against the top of the tunnel so that it fits tightly with the top of the tunnel, and threadedly connects the threaded rod and the threaded sleeve 6 to connect the two groups of support top plates 2, thereby ensuring the supporting strength of the support top plate 2.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A tunneling support structure for a drift, characterized by: The invention comprises a supporting side plate (1) and a supporting top plate (2), wherein the supporting top plate (2) is mounted on the top of the supporting side plate (1), a supporting shaft (3) is fixed on the top of the supporting side plate (1), a connecting groove (4) is provided at one end of the supporting top plate (2), and the connecting groove (4) is composed of a vertical end and an inclined end. When the supporting top plate (2) is horizontal, the supporting shaft (3) is located at the top end of the connecting groove (4), and the diameter of the supporting shaft (3) is the same as the width of the connecting groove (4).

2. The tunneling support structure of a drift roadway according to claim 1, characterized in that: The supporting top plate (2) and the supporting side plate (1) are symmetrically arranged. A top block 1 (8) and a top block 2 (9) are fixed under the top wall of the supporting top plate (2), a threaded rod 2 (5) is fixed on the top block 1 (8), a threaded sleeve (6) is horizontally slid on the top block 2 (9), and the threaded rod 2 (5) and the threaded sleeve (6) are threadedly connected.

3. The tunneling support structure of a drift roadway according to claim 2, characterized in that: An outer wall surface at one end of the threaded sleeve (6) is provided with anti-slip grooves (7).

4. The tunneling support structure of a drift roadway according to claim 3, characterized in that: A support plate (12) is provided under the support side plate (1), a threaded rod (11) is rotatably provided on the support plate (12), the threaded rod (11) is threadedly connected to the bottom of the support side plate (1), and an end block (10) is fixed to the top of the threaded rod (11).

5. The tunneling support structure of a drift roadway according to claim 4, characterized in that: The top of the support plate (12) is also provided with a limiting column (13) that passes through the bottom of the supporting side plate (1).

6. The tunneling support structure of a drift roadway according to claim 5, characterized in that: The supporting side plates (1) and the supporting top plate (2) both have U-shaped cross-sections.

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