Anti-deformation reinforcing device for operating subway tunnel

Abstract

The utility model discloses an operation subway tunnel anti-deformation reinforcing device which structurally comprises a foundation pit, an enclosure structure is arranged on the outer ring of the foundation pit, a protective structure is arranged on the outer ring of the enclosure structure, the enclosure structure comprises a coaming, a cylindrical stand column is arranged on the inner ring of the coaming, and the protective structure is arranged on the outer ring of the cylindrical stand column. The cylindrical stand columns are arranged around the inner ring of the surrounding plate at equal intervals, the baffles are connected between every two cylindrical stand columns, the baffles are arc-shaped, the enclosure structure and the protection structure are arranged and located on the inner layer and the outer layer of the foundation pit correspondingly, and the influence of foundation pit construction on the periphery of the tunnel on the tunnel is prevented through cooperative work of the inner structure and the outer structure; according to the protective structure, the connecting grooves and the connecting blocks are arranged, so that splicing of a plurality of protective structures can be achieved, the reinforcing layer is arranged and used for being further matched with work of the protective structures, screws on the reinforcing layer can fix the connecting grooves and the connecting blocks at the same time during fixing, and the stability is further guaranteed.

Description

Technical Field

[0001] This utility model is a deformation-resistant reinforcement device for operating subway tunnels, belonging to the field of subway tunnel deformation prevention technology. Background Technology

[0002] Urban rail transit has brought great convenience to people's lives and travel, and has also triggered a "subway economy" effect, with real estate and commercial economies springing up along subway lines. This often results in a dense concentration of high-rise buildings built or under construction around subway stations. Deep foundation pits, as the foundation of buildings, are directly related to the safety and durability of buildings. As building height gradually increases, the corresponding foundation pit depth also increases, leading to increasingly complex foundation pit engineering problems. These problems often affect surrounding buildings, roads, and pipelines, especially in the case of proximity to subway tunnels, where the impact of deep foundation pit engineering is particularly significant, and the subway tunnels should be given special protection.

[0003] With the rapid development of engineering construction, foundation pit engineering is increasingly moving towards deeper, larger, and more complex directions. Foundation pit excavation will disrupt the original stress balance of the soil, causing stress redistribution in the soil at the bottom and around the pit. Soil displacement can cause defects such as cracking and misalignment of tunnel segments, affecting the normal operation of the subway and even causing huge economic losses and personal safety. This makes the design and construction of foundation pit engineering face increasingly severe challenges. Due to the importance of subways in saving ground space, alleviating traffic pressure, and saving energy, the displacement control requirements of subway tunnel structures on themselves and the surrounding soil are extremely strict. Therefore, for foundation pit engineering adjacent to subway shield tunnels, it is necessary not only to ensure the safety of foundation pit construction, but also to meet the deformation control requirements of the subway tunnel. The regional differences of foundation pit engineering and the complexity of its engineering geology and hydrogeology determine that the entire construction process is full of unknown risks. Therefore, it is urgent to study the impact of deep foundation pit construction on the deformation of existing subway tunnels and has great economic significance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a deformation-resistant reinforcement device for operating subway tunnels to solve the existing problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a deformation-resistant reinforcement device for operating subway tunnels, the structure of which includes a foundation pit, an enclosure structure on the outer ring of the foundation pit and a protective structure on the outer ring of the enclosure structure, the enclosure structure including a surrounding plate, cylindrical columns on the inner ring of the surrounding plate, the cylindrical columns being equidistantly arranged around the inner ring of the surrounding plate, and a baffle plate connected between each pair of cylindrical columns, the baffle plate being arc-shaped.

[0006] Furthermore, a reinforcing layer is also connected to one side of the protective structure.

[0007] Furthermore, the protective structure has a connecting groove and a connecting block is matchedly provided on the connecting groove.

[0008] Furthermore, the connecting groove has a groove body, the connecting block has a locking block, the locking block is locked into the groove body, the reinforcing layer is connected to the protective structure by a screw, and when the screw is connected, it passes through the reinforcing layer, the protective structure, the groove body and is connected to the locking block.

[0009] Furthermore, the protective structure is also provided with a cement silo, and the inner cavity of the cement silo is filled with reinforcing bars, which form an H shape with the inner wall of the cement silo.

[0010] The beneficial effects of this utility model are:

[0011] 1. By setting up retaining structures and protective structures, located in two layers inside and outside the foundation pit respectively, the construction of the foundation pit around the tunnel can be prevented from affecting the tunnel through the coordinated work of the inner and outer structures.

[0012] 2. The protective structure, equipped with connecting grooves and connecting blocks, allows for the splicing of several protective structures.

[0013] 3. A reinforcing layer is provided to further support the protective structure. The screws on the reinforcing layer will simultaneously fix the connecting groove and the connecting block during fixing, further ensuring stability. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of an anti-deformation reinforcement device for an operating subway tunnel according to the present invention;

[0016] Figure 2 This is a schematic diagram of the retaining structure of an anti-deformation reinforcement device for an operating subway tunnel according to the present invention;

[0017] Figure 3 This is a schematic diagram of the protective structure of an anti-deformation reinforcement device for an operating subway tunnel according to the present invention;

[0018] Figure 4 This is a top view schematic diagram of the protective structure of an anti-deformation reinforcement device for an operating subway tunnel according to the present invention;

[0019] Figure 5 This is a schematic diagram of a cement silo structure for an anti-deformation reinforcement device for an operating subway tunnel according to the present invention.

[0020] Figure 6This is a schematic diagram of the cylindrical column structure of an anti-deformation reinforcement device for an operating subway tunnel according to the present invention.

[0021] In the diagram: 1. Excavation pit; 2. Retaining structure; 3. Protective structure; 4. Enclosure panel; 5. Cylindrical column; 6. Baffle; 7. Reinforcing layer; 8. Connecting groove; 9. Connecting block; 10. Trench body; 11. Locking block; 12. Screw; 13. Cement silo; 14. Reinforcing bar. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-6 This utility model provides a technical solution for an anti-deformation reinforcement device for an operating subway tunnel: its structure includes a foundation pit 1, an enclosure structure 2 is provided on the outer ring of the foundation pit 1, and a protective structure 3 is provided on the outer ring of the enclosure structure 2. The enclosure structure 2 includes a surrounding plate 4, and cylindrical columns 5 are provided on the inner ring of the surrounding plate 4. The cylindrical columns 5 are equidistantly arranged around the inner ring of the surrounding plate 4, and a baffle 6 is connected between each pair of cylindrical columns 5. The baffle 6 is arc-shaped.

[0024] A reinforcing layer 7 is also connected to one side of the protective structure 3. A connecting groove 8 is provided on the protective structure 3 and a connecting block 9 is matched on the connecting groove 8. The connecting groove 8 has a groove body 10. The connecting block 9 has a locking block 11. The locking block 11 is locked into the groove body 10. The reinforcing layer 7 is connected to the protective structure 3 by a screw 12. When the screw 12 is connected, it passes through the reinforcing layer 7, the protective structure 3, the groove 10 and is connected to the locking block 11.

[0025] The protective structure 3 is also provided with a cement silo 13, and the inner cavity of the cement silo 13 is provided with reinforcing bars 14, which form an H shape with the inner wall of the cement silo 13.

[0026] For example, during operation, the retaining structure 2 surrounds the foundation pit 1 to protect it, and the cylindrical column 5 and the baffle 6 form a water-blocking and mud-blocking structure. The protective structure 3 further blocks and protects the foundation pit 1 and the retaining structure 2. By pouring cement in the cement silo 13, the protection is further guaranteed, preventing the foundation pit 1 from affecting the adjacent subway tunnel during operation.

[0027] When the enclosure structure 2 is installed, the connecting block 9 is inserted into the connecting groove 8 for splicing, and the reinforcement layer 7 is installed at the same time. The reinforcement layer 7 is connected by the screw 12, and after the screw 12 is connected, it will fix the connecting groove 8 and the connecting block 9 at the same time.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deformation-resistant reinforcement device for an operating subway tunnel, comprising a foundation pit (1), a retaining structure (2) on the outer ring of the foundation pit (1), and a protective structure (3) on the outer ring of the retaining structure (2), characterized in that: The enclosure structure (2) includes a enclosure panel (4), and cylindrical columns (5) are provided in the inner circle of the enclosure panel (4). The cylindrical columns (5) are arranged at equal intervals around the inner circle of the enclosure panel (4). A baffle (6) is connected between each pair of cylindrical columns (5). The baffle (6) is arc-shaped.

2. The anti-deformation reinforcement device for an operating subway tunnel according to claim 1, characterized in that: A reinforcing layer (7) is also connected to one side of the protective structure (3).

3. The anti-deformation reinforcement device for an operating subway tunnel according to claim 2, characterized in that: The protective structure (3) has a connecting groove (8) and a connecting block (9) is matched on the connecting groove (8).

4. The anti-deformation reinforcement device for an operating subway tunnel according to claim 3, characterized in that: The connecting groove (8) has a groove body (10), the connecting block (9) has a locking block (11), the locking block (11) is inserted into the groove body (10), the reinforcing layer (7) is connected to the protective structure (3) by a screw (12), and when the screw (12) is connected, it passes through the reinforcing layer (7), the protective structure (3), the groove body (10) and is connected to the locking block (11).

5. The anti-deformation reinforcement device for an operating subway tunnel according to claim 1, characterized in that: The protective structure (3) is also provided with a cement silo (13), and the inner cavity of the cement silo (13) is provided with reinforcing bars (14), which form an H shape with the inner wall of the cement silo (13).

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