Shield tunnel construction duct piece connecting structure

Abstract

The utility model belongs to the technical field of duct piece connection, and particularly relates to a shield tunnel construction duct piece connection structure which comprises a first duct piece, a second duct piece arranged on one side of the first duct piece, an outer protection plate arranged on the outer side of the first duct piece, an inner protection plate arranged on the inner side of the second duct piece and a trapezoid groove formed in one side of the first duct piece. A trapezoid block is arranged on one side of the second pipe piece. The first duct piece, the second duct piece, the trapezoidal groove and the trapezoidal block are arranged to be used in cooperation, the trapezoidal block is movably connected with the trapezoidal groove in a clamped mode, the splicing connection stability between the first duct piece and the second duct piece can be effectively improved, and meanwhile the outer protection plate and the inner protection plate are arranged on the inner side and the outer side of the first duct piece and the second duct piece to be used in cooperation. The inner wall and the outer wall of the first duct piece and the inner wall and the outer wall of the second duct piece can be conveniently and effectively supported and protected, the overall structural strength is improved, damage caused by external acting force is prevented, and long-term work and use are better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of segment connection, in particular to a segment connection structure for shield tunnel construction. Background Technique

[0002] At present, the shield method is often used for tunnel construction in projects such as subways, railways, highways, and water conservancy. It has a wide application market prospect and good economic and social benefits. The shield method is a fully mechanized construction method in the subaqueous tunneling method. It is to push the shield machine in the ground, and prevent the surrounding rock from collapsing into the tunnel by the shield shell and segment support. At the same time, the soil is excavated by a cutting device in front of the excavation face, transported out of the tunnel by an earth removal machine, and jacked forward by a jack at the rear, and precast concrete segments are assembled to form a tunnel structure.

[0003] The prior art has the following deficiencies: A segment connection structure for shield tunnel construction with the publication number of CN202021365205.7 in the prior art includes a concrete segment. Two upper connecting plates are fixedly connected to the upper side walls on both sides of the concrete segment. Two second installation holes are opened at the bottom end of the upper connecting plate. Second bolts are arranged in the second installation holes. Two first installation holes are opened at the middle position of the side wall of the upper connecting plate. First bolts are arranged in the first installation holes. An alignment slot is opened at the middle position of the upper end of the concrete segment. A lower connecting block is fixedly connected to the lower end of the concrete segment. An alignment block is fixedly connected to the middle position of the side of the lower connecting block away from the concrete segment. A plurality of vertical drainage holes are opened at the middle position of the upper end of the alignment slot. The plurality of vertical drainage holes extend downward to the middle position of the concrete segment. A horizontal drainage hole is opened at the middle position of the side surface of the concrete segment. The horizontal drainage hole is communicated with the plurality of vertical drainage holes.

[0004] When the above segment connection structure is in use, its alignment block and alignment slot are both movably connected, and its connection stability is relatively poor. At the same time, its end connection structure is relatively complex, and its practicability is relatively low, which is not convenient for better installation and connection of segments. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a segment connection structure for shield tunnel construction to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A segment connection structure for shield tunnel construction, including a first segment, a second segment is arranged on one side of the first segment, an outer protection plate is arranged on the outer side of the first segment, an inner protection plate is arranged on the inner side of the second segment, a trapezoidal groove is arranged on one side of the first segment, and a trapezoidal block is arranged on one side of the second segment.

[0007] As a preferred technical solution of the present utility model, the first segment includes a first fixing hole, a first connecting rod, a first fixing groove and a first connecting hole. The first fixing hole is arranged on the inner side of the first segment, the first connecting rod is fixedly installed on the top of the first segment, a first fixing groove is arranged on one side of the first connecting rod, the first connecting hole is arranged at the bottom of the first segment, and the first fixing hole corresponds to the first fixing groove in terms of size and position.

[0008] As a preferred technical solution of the present utility model, the outer diameter dimension of the first connecting rod is adapted to the inner diameter dimension of the first connecting hole, and the first connecting rod is movably inserted into the first connecting hole.

[0009] As a preferred technical solution of the present utility model, the second segment includes a second fixing hole, a second connecting rod, a second fixing groove and a second connecting hole. The second fixing hole is arranged on the outer side of the second segment, the second connecting rod is fixedly installed on the top of the second segment, a second fixing groove is arranged on one side of the second connecting rod, the second connecting hole is arranged at the bottom of the second segment, the outer diameter dimension of the second connecting rod is adapted to the inner diameter dimension of the second connecting hole, the second connecting rod is movably inserted into the second connecting hole, and the second fixing groove corresponds to the second fixing hole in terms of vertical position.

[0010] As a preferred technical solution of the present utility model, a first mounting hole is arranged on the outer protection plate, and the first mounting hole corresponds to the second fixing hole in terms of position.

[0011] As a preferred technical solution of the present utility model, a second mounting hole is arranged on the inner protection plate, and the second mounting hole corresponds to the first fixing hole in terms of position.

[0012] As a preferred technical solution of the present utility model, the inner diameter dimension of the trapezoidal groove is adapted to the outer diameter dimension of the trapezoidal block, and the trapezoidal block is movably clamped with the trapezoidal groove.

[0013] Compared with the prior art, the present utility model provides a segment connection structure for shield tunnel construction, having the following beneficial effects:

[0014] 1. This segment connection structure for shield tunnel construction effectively improves the assembly connection stability between the first segment and the second segment by using the first segment, the second segment, trapezoidal grooves, and trapezoidal blocks in cooperation. The trapezoidal blocks are movably clamped with the trapezoidal grooves. Meanwhile, an outer protective plate and an inner protective plate are provided on the inner and outer sides of the first segment and the second segment for cooperation, which can effectively support and protect the inner and outer walls of the first segment and the second segment, facilitate improving the structural strength of the installation connection of the first segment and the second segment, and prevent damage caused by external forces.

[0015] 2. This segment connection structure for shield tunnel construction further improves the assembly connection stability between the first segment and the second segment by setting the first fixing holes and the second fixing holes corresponding to the second installation holes and the first installation holes respectively, which facilitates the connection bolts. By using the first connecting rod, the second connecting rod, the first fixing groove, and the second fixing groove in cooperation, it is convenient to assemble and join multiple first segments and second segments, making it easier to install and use and improving the working effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the assembly connection structure of the present invention;

[0017] Figure 2 Schematic diagram of the first segment structure of the present invention;

[0018] Figure 3 Schematic diagram of the second segment structure of the present invention;

[0019] Figure 4 Schematic diagram of the bottom structures of the first segment and the second segment of the present invention.

[0020] In the figure: 1. First segment; 101. First fixing hole; 102. First connecting rod; 103. First fixing groove; 104. First connection hole; 2. Second segment; 201. Second fixing hole; 202. Second connecting rod; 203. Second fixing groove; 204. Second connection hole; 3. Outer protective plate; 301. First installation hole; 4. Inner protective plate; 401. Second installation hole; 5. Trapezoidal groove; 6. Trapezoidal block. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0022] Please refer toFigures 1-4 , in this embodiment: A segment connection structure for shield tunnel construction includes a first segment 1. A second segment 2 is arranged on one side of the first segment 1. An outer protection plate 3 is arranged on the outer side of the first segment 1 to facilitate the protection of the outer side of the segment. An inner protection plate 4 is arranged on the inner side of the second segment 2 to facilitate the protection of the inner side of the segment. A trapezoidal groove 5 is arranged on one side of the first segment 1 to facilitate the connection of a trapezoidal block 6. A trapezoidal block 6 is arranged on one side of the second segment 2, which can improve the assembly connection stability.

[0023] In this embodiment, the first segment 1 includes a first fixing hole 101, a first connecting rod 102, a first fixing groove 103 and a first connection hole 104. The first fixing hole 101 is arranged on the inner side of the first segment 1. The first connecting rod 102 is fixedly installed on the top of the first segment 1. A first fixing groove 103 is arranged on one side of the first connecting rod 102. The first connection hole 104 is arranged at the bottom of the first segment 1. The first fixing hole 101 and the first fixing groove 103 are corresponding in size and position, which is convenient for connecting and fixing them and improving the splicing and installation stability.

[0024] In this embodiment, the outer diameter dimension of the first connecting rod 102 is adapted to the inner diameter dimension of the first connection hole 104, and the first connecting rod 102 is movably inserted into the first connection hole 104, which is convenient for better installation and use.

[0025] In this embodiment, the second segment 2 includes a second fixing hole 201, a second connecting rod 202, a second fixing groove 203 and a second connection hole 204. The second fixing hole 201 is arranged on the outer side of the second segment 2. The second connecting rod 202 is fixedly installed on the top of the second segment 2. A second fixing groove 203 is arranged on one side of the second connecting rod 202. The second connection hole 204 is arranged at the bottom of the second segment 2. The outer diameter dimension of the second connecting rod 202 is adapted to the inner diameter dimension of the second connection hole 204, and the second connecting rod 202 is movably inserted into the second connection hole 204. The second fixing groove 203 and the second fixing hole 201 are corresponding in up and down position, which is convenient for assembling and connecting with the first segment 1 and can improve the connection stability at the same time.

[0026] In this embodiment, a first installation hole 301 is arranged on the outer protection plate 3, and the first installation hole 301 is corresponding in position to the second fixing hole 201, which is convenient for protecting the outer sides of the first segment 1 and the second segment 2 and can improve the strength of their connection structure at the same time.

[0027] In this embodiment, a second installation hole 401 is arranged on the inner protection plate 4, and the second installation hole 401 is corresponding in position to the first fixing hole 101, which is convenient for protecting the inner sides of the first segment 1 and the second segment 2 and can further improve the protection effect.

[0028] In this embodiment, the inner diameter dimension of the trapezoidal groove 5 is adapted to the outer diameter dimension of the trapezoidal block 6. The trapezoidal block 6 is movably clamped with the trapezoidal groove 5, which facilitates the assembly and connection of the first segment 1 and the second segment 2, and at the same time can improve the connection stability.

[0029] The working principle and usage process of the present utility model: The operator can conveniently perform the quick splicing and installation work of the first segment 1 and the second segment 2 by docking and inserting the trapezoidal groove 5 and the trapezoidal block 6 on one side of the first segment 1 and the second segment 2. By using the outer protection plate 3 provided on the outer side of the first segment 1 and the inner protection plate 4 provided on the inner side of the second segment 2 in cooperation, the inner and outer walls of the first segment 1 and the second segment 2 can be effectively protected. By providing the first installation holes 301 and the second installation holes 401 on the outer protection plate 3 and the inner protection plate 4, which respectively correspond to the second fixing holes 201 and the first fixing holes 101, and inserting bolts, the connection and installation stability between the first segment 1 and the second segment 2 can be effectively improved, facilitating better work use. By inserting the first connecting rod 102 and the second connecting rod 202 into the first connecting hole 104 and the second connecting hole 204 respectively, and at the same time passing the bolts through the second installation hole 401, the first installation hole 301, the first fixing hole 101 and the second fixing hole 201, it is convenient to connect and fix with the first fixing groove 103 and the second fixing groove 203, facilitating the assembly and connection between multiple first segments 1 and second segments 2.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shield tunnel construction segment connection structure, comprising a first segment (1), a second segment (2) being arranged on one side of the first segment (1), characterized in that: An outer protective plate (3) is arranged on the outer side of the first tube segment (1), an inner protective plate (4) is arranged on the inner side of the second tube segment (2), a trapezoidal groove (5) is arranged on one side of the first tube segment (1), and a trapezoidal block (6) is arranged on one side of the second tube segment (2).

2. A shield tunnel construction segment connection structure according to claim 1, characterized in that: The first tube segment (1) comprises a first fixing hole (101), a first connecting rod (102), a first fixing groove (103) and a first connecting hole (104); the first fixing hole (101) is arranged on the inner side of the first tube segment (1); the first connecting rod (102) is fixedly mounted on the top of the first tube segment (1); a first fixing groove (103) is arranged on one side of the first connecting rod (102); the first connecting hole (104) is arranged on the bottom of the first tube segment (1); the first fixing hole (101) corresponds to the first fixing groove (103) in size and position.

3. A shield tunnel construction segment connection structure according to claim 2, characterized in that: The outer diameter of the first connecting rod (102) matches the inner diameter of the first connecting hole (104), and the first connecting rod (102) is movably plugged into the first connecting hole (104).

4. A shield tunnel construction segment connection structure according to claim 1, characterized in that: The second tube segment (2) comprises a second fixing hole (201), a second connecting rod (202), a second fixing groove (203) and a second connecting hole (204); the second fixing hole (201) is arranged on the outer side of the second tube segment (2); the second connecting rod (202) is fixedly mounted on the top of the second tube segment (2); a second fixing groove (203) is arranged on one side of the second connecting rod (202); a second connecting hole (204) is arranged on the bottom of the second tube segment (2); the outer diameter of the second connecting rod (202) is matched with the inner diameter of the second connecting hole (204); the second connecting rod (202) is movably plugged into the second connecting hole (204); and the second fixing groove (203) corresponds to the upper and lower positions of the second fixing hole (201).

5. A shield tunnel construction segment connection structure according to claim 1, characterized in that: The outer protective plate (3) is provided with a first mounting hole (301), and the first mounting hole (301) corresponds in position to the second fixing hole (201).

6. A shield tunnel construction segment connection structure according to claim 1, characterized in that: The inner protection plate (4) is provided with a second mounting hole (401), and the second mounting hole (401) corresponds in position to the first fixing hole (101).

7. The shield tunnel construction segment connection structure according to claim 1, characterized in that: The inner diameter of the trapezoidal groove (5) is matched with the outer diameter of the trapezoidal block (6), and the trapezoidal block (6) is movably engaged with the trapezoidal groove (5).

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