Pipe piece fastening device

Abstract

The utility model discloses a duct piece fastening device which comprises a plurality of embedded steel plates which are arranged on the opposite sides of two adjacent duct pieces respectively. And the fastening steel plates are arranged on the two pre-embedded steel plates, and the fastening steel plates are used for connecting the pre-embedded steel plates on the opposite sides of the two adjacent pipe pieces. According to the utility model, the plurality of fastening steel plates are fixed on the opposite sides of every two adjacent pipe pieces and are connected with the two adjacent pipe pieces, so that the two adjacent pipe pieces can be reinforced, and the phenomenon of water leakage caused by loose contact and opening of circular seams of the pipe pieces due to insufficient counter force of a shield body can be prevented; and only the fastening steel plate on the starting ring needs to be detached.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel safety technical field especially relates to a segment fastening device. BACKGROUND

[0002] The statements herein only provide the background of the utility model related, and do not necessarily constitute the prior art.

[0003] Tunnel lining prefabricated concrete segment is the important component for supporting underground structure and preventing soil collapse in tunnel engineering.In the tunnel adopting shield method construction, segment is the main unit of tunnel lining, and the quality control of segment is very important in shield tunnel construction, which directly influences the safety, progress and service life of tunnel engineering.The segments of tunnel initial ring (initial lining ring) are not fixed, and there is displacement and ovalization between segments;when segment is out of shield tail and received, the segments in tunnel are generally fixed by bolt connection and bonding, and the method has the risk of causing segment ring joint contact relaxation, opening and water leakage due to insufficient shield reaction force, and influences construction safety, so a segment fastening device is provided to solve the above problems. SUMMARY

[0004] The utility model discloses a segment fastening device to solve the above problems.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a segment fastening device, comprising:

[0006] A plurality of embedded steel plates are arranged on the opposite sides of two adjacent segments.

[0007] A fastening steel plate is arranged on the two embedded steel plates, and the fastening steel plate is used for connecting the embedded steel plates on the opposite sides of two adjacent segments.

[0008] Further, the embedded steel plate is embedded in the corresponding segment.

[0009] Further, the fastening steel plate is U-shaped, and the two sides of the fastening steel plate are welded on the embedded steel plates on the opposite sides of two adjacent segments.

[0010] Further, the pre-embedded steel plate is provided with a plurality of mounting slots in linear distribution along the length direction, each mounting slot is a polygonal slot body, the pre-embedded steel plate is provided with a threaded ring at each mounting slot, the bottom of the fastening steel plate is provided with a fixing cap corresponding to the mounting slot, the inside of the fixing cap is provided with a positioning hole for inserting the threaded ring, the pre-embedded steel plate is rotatably provided with a positioning assembly, the bottom of the positioning assembly is located in the positioning hole, and the bottom of the positioning assembly can be screwed with the threaded ring when the threaded ring is inserted into the positioning hole.

[0011] Further, the positioning assembly comprises an adjusting column rotatably arranged in the pre-embedded steel plate and a threaded rod, the threaded rod is arranged at the bottom of the adjusting column, and the top of the adjusting column is provided with an operation slot.

[0012] The utility model discloses beneficial effects are reflected in:

[0013] In the utility model, in the originating section, the segment is assembled into a ring body on one side of the tunnel, the ring body is the originating ring, the pre-embedded steel plate is located on the outer arc surface of the segment of the originating ring, after the originating ring is formed, the adjacent two pre-embedded steel plates at the outer arc surface of the segment are welded and fixed with the fastening steel plate, so that the originating ring is stable after forming a ring, and displacement or elliptical deformation is difficult to occur, in the segment disengagement shield tail stage, the pre-embedded steel plate is located on the inner arc surface of the segment of the inner ring body, and the adjacent two pre-embedded steel plates at the inner arc surface of the segment are welded and fixed with the fastening steel plate by the staff, in the receiving stage, the tunnel has a plurality of inner ring bodies that have been installed, the adjacent two inner ring bodies have the pre-embedded steel plate that is relatively distributed on the corresponding segment between each other, and the staff can weld the fastening steel plate to the adjacent two pre-embedded steel plates, so that the adjacent two inner ring bodies are fixed and stable between each other, and the method can prevent the pipe segment ring joint from being loose, opening and causing water leakage due to insufficient shield body reaction force. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the perspective view of the utility model;

[0015] Figure 2 It is the second embodiment schematic view of the utility model;

[0016] Figure 3 It is the local explosion schematic view of the second embodiment in the utility model;

[0017] Figure 4 It is the setting schematic view of the positioning assembly in the utility model.

[0018] In the drawing:

[0019] 1, pre-embedded steel plate;2, fastening steel plate;3, mounting slot;4, threaded ring;5, fixing cap;6, positioning hole;7, positioning assembly;71, adjusting column;72, threaded rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model discloses a segment fastener, including a plurality of pre -buried steel sheet 1, a plurality of pre -buried steel sheet 1 installs at the opposite side of adjacent two segments respectively, and two pre -buried steel sheet 1 is provided with fastening steel sheet 2, and the thickness of fastening steel sheet 2 is 2cm, and its appearance is U-shaped, and fastening steel sheet 2 is used for connecting the pre -buried steel sheet 1 of adjacent two segments opposite sides, in actual situation, can install pre -buried steel sheet 1 to the corresponding position of segment when producing segment prefabricated part, like this can save most time when tunnel construction.

[0022] In the specific implementation, in the originating section, the segments are assembled into a ring body on one side outside the tunnel, the ring body is an originating ring, the pre-buried steel plates 1 are located on the outer arc surfaces of the segments of the originating ring, the originating ring serves as a starting frame of the shield machine, and is used to ensure that the shield machine can advance to the tunnel according to a preset axis, so that the segment position is assembled correctly. After the originating ring is formed, the two pre-buried steel plates 1 adjacent to each other at the outer arc surfaces of the segments and the fastening steel plate 2 are welded and fixed, so that the structure of the originating ring is stable after the originating ring is formed into a ring, and displacement or elliptical deformation is difficult to occur. In the segment disengagement phase of the shield tail, the shield machine advances to the tunnel, the segments are assembled into a single inner ring body by a segment assembling machine of the shield tail of the shield machine. With the continuous advancement of the shield machine, the segments of the above-mentioned inner ring body gradually disengage from the shield tail and are exposed in the surrounding soil. At this time, the pre-buried steel plates 1 are located on the inner arc surfaces of the segments of the inner ring body. The two pre-buried steel plates 1 adjacent to each other at the inner arc surfaces of the segments and the fastening steel plate 2 are welded and fixed by the workers. In the receiving phase, the tunnel has a plurality of inner ring bodies that have been installed. At this time, the corresponding segments between every two adjacent inner ring bodies have oppositely distributed pre-buried steel plates 1. The fastening steel plate 2 is welded to the above-mentioned two pre-buried steel plates 1 adjacent to each other by the workers. Thus, the fixing between every two adjacent inner ring bodies is stable. This mode can prevent the segment ring joints from being loose, opening and causing water leakage due to insufficient reaction force of the shield body, so as to facilitate long-term use.

[0023] In addition, the pre-buried steel plate 1 has a corresponding arc, which corresponds to the arc of the segment. After the tunnel construction is completed, the fastening steel plate 2 on each segment of the originating ring needs to be removed, so that each segment of the originating ring can be removed.

[0024] In an embodiment, the embedded steel plate 1 is embedded on the corresponding pipe segment, and the embedded steel plate 1 is fixedly connected with the corresponding pipe segment.

[0025] In this way, the embedded steel plate 1 can be installed on the pipe segment for a long time, and when disassembled, only the fastening steel plate 2 needs to be removed, without the need to remove the embedded steel plate 1, thereby saving disassembly time.

[0026] In an embodiment, the fastening steel plate 2 is in a U shape, and both sides thereof are welded to the embedded steel plates 1 arranged on the opposite sides of the adjacent two pipe segments.

[0027] In this way, the fastening steel plate 2 can be fixed to the embedded steel plate 1 in a very stable manner through welding, so as to ensure the structural strength.

[0028] In an embodiment, a plurality of installation grooves 3 in a straight line are arranged on the embedded steel plate 1 along the length direction thereof, each installation groove 3 is a polygonal groove, a threaded ring 4 is arranged on the embedded steel plate 1 at each installation groove 3, the inner wall of the threaded ring 4 is provided with threads, and the installation end thereof faces upward, a fixing cap 5 corresponding to the installation groove 3 is arranged on the bottom of the fastening steel plate 2, the inside of the fixing cap 5 is provided with a positioning hole 6 for the threaded ring 4 to be inserted, and a positioning assembly 7 is rotatably arranged on the embedded steel plate 1, and the bottom of the positioning assembly 7 is located in the positioning hole 6.

[0029] In a specific implementation, when the threaded ring 4 is inserted into the inside of the positioning hole 6, the bottom of the positioning assembly 7 can be screwed with the threaded ring 4. Specifically, since the embedded steel plate 1 is provided with a plurality of polygonal installation grooves 3, the fixing cap 5 can be inserted into the corresponding installation groove 3 according to requirements, so that the fastening steel plate 2 can be arranged vertically on the embedded steel plate 1 or arranged in an inclined manner on the embedded steel plate 1. In this way, when the position of the pipe segment is not suitable for installing the fastening steel plate 2 on the embedded steel plate 1 in a fixed position, the installation position and angle of the fastening steel plate 2 can be adjusted in the above-mentioned manner. When installed, the fixing cap 5 is gradually inserted into the inside of the corresponding installation groove 3, and at the same time, the corresponding threaded ring 4 is also inserted into the positioning hole 6. In this process, rotating the positioning assembly 7 can make it screwed into the threaded ring 4, so as to ensure that the fastening steel plate 2 can be stably fixed on the corresponding embedded steel plate 1. This manner can ensure stable installation, and when the fastening steel plate 2 needs to be disassembled, the positioning assembly 7 can be reversely rotated, so as to facilitate actual use.

[0030] In an embodiment, the positioning assembly 7 includes an adjusting column 71 rotatably arranged in the embedded steel plate 1 and a threaded rod 72, the threaded rod 72 is arranged at the bottom of the adjusting column 71, and the top of the adjusting column 71 is provided with an operation groove.

[0031] In this way, the rotating operation of the positioning assembly 7 can be further facilitated by inserting the operating end of the corresponding tool into the operating slot.

[0032] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0034] In addition, "a plurality of" means two or more.

[0035] The above is only the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A segment fastening device, characterized in that, include: Multiple embedded steel plates (1) are respectively set on opposite sides of two adjacent pipe segments; Fastening steel plate (2) is set on two pre-embedded steel plates (1), the fastening steel plate (2) is used to connect the pre-embedded steel plates (1) on opposite sides of two adjacent pipe segments.

2. The segment fastening device according to claim 1, characterized in that: The pre-embedded steel plate (1) is embedded in the corresponding pipe segment.

3. The segment fastening device according to claim 1, characterized in that: The fastening steel plate (2) is U-shaped, and its two sides are respectively welded to the pre-embedded steel plates (1) on opposite sides of two adjacent pipe segments.

4. The segment fastening device according to claim 1, characterized in that: The embedded steel plate (1) has multiple linearly distributed mounting grooves (3) along its length. Each mounting groove (3) is a polygonal groove. Each mounting groove (3) of the embedded steel plate (1) is provided with a threaded ring (4). The bottom of the fastening steel plate (2) is provided with a fixing cap (5) corresponding to the mounting groove (3). The fixing cap (5) has a positioning hole (6) for the threaded ring (4) to be inserted. The embedded steel plate (1) is rotatably provided with a positioning component (7). The bottom of the positioning component (7) is located in the positioning hole (6). When the threaded ring (4) is inserted into the positioning hole (6), the bottom of the positioning component (7) can be screwed into the threaded ring (4).

5. The segment fastening device according to claim 4, characterized in that: The positioning component (7) includes an adjusting column (71) and a threaded rod (72) that are rotatably disposed in the embedded steel plate (1). The threaded rod (72) is disposed at the bottom of the adjusting column (71), and an operating groove is provided at the top of the adjusting column (71).

Images