Fatigue life detection equipment for shield tunnel segment

Abstract

The utility model discloses shield tunnel segment fatigue life detection equipment which comprises a track, a movable carrying trolley is movably arranged on the track, the upper end of the movable carrying trolley is fixedly connected with a side baffle, a tunnel segment is placed at the upper end of the side baffle, transverse insertion grooves are formed in the lower ends of the two sides of the side baffle, and the transverse insertion grooves are connected with the movable carrying trolley. Supporting plate frames are fixedly connected to the two sides of the rail correspondingly, a connecting frame is fixedly connected to one side of each supporting plate frame, hydraulic columns are fixedly connected to the front side and the rear side of the upper end of the connecting frame correspondingly, and the output ends of the lower ends of the hydraulic columns are detachably connected with pressure plates through clamping mechanisms correspondingly. By pulling the inserting columns on the two sides of the clamping mechanism, the clamping mechanism can be separated from the output end of the hydraulic column, and a user can replace a new pressure plate and new extrusion type rubber.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue life detection, in particular to a shield tunnel segment fatigue life detection device. Background Art

[0002] The shield segment is the main assembly component of shield construction and the innermost barrier of the tunnel. It is responsible for resisting soil pressure, groundwater pressure and some special loads. Therefore, the pressure fatigue resistance of the shield segment needs to be tested. Generally, during the test, the tunnel segment needs to be squeezed by a hydraulic column.

[0003] However, after the tunnel segments are squeezed by the hydraulic column, the extrusion sheet at the lower end of the hydraulic column is generally an integral structure. After long-term use, the extrusion sheet may wear or deform and need to be replaced. The existing extrusion sheet is an integral structure with poor disassembly performance, so it does not meet the existing needs. In response to this, a shield tunnel segment fatigue life detection device is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a shield tunnel segment fatigue life detection device to solve the problem raised in the above background technology that the extrusion piece at the lower end of the hydraulic column is generally an integral structure, and the extrusion piece may be worn or deformed after long-term use, and needs to be replaced, while the existing extrusion piece is an integral structure and has poor disassembly performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shield tunnel segment fatigue life detection device, comprising a track, a movable carrying trolley is movably provided on the track, the upper end of the movable carrying trolley is fixedly connected to a side baffle, the upper end of the side baffle is placed with a tunnel segment, the lower ends of both sides of the side baffle are provided with a horizontal slot, both sides of the track are fixedly connected to a support plate frame, one side of the support plate frame is fixedly connected to a connecting frame, the front and rear sides of the upper end of the connecting frame are fixedly connected to a hydraulic column, the output end of the lower end of the hydraulic column is detachably connected to a pressure plate through a clamping mechanism, and the lower end of the clamping mechanism is fixedly connected to the pressure plate.

[0006] Preferably, the support plate frame is inserted transversely into the transverse slot.

[0007] Preferably, the cross-section of the pressure plate is set to an L-shaped structure, and the two inner end surfaces of the pressure plate are connected to extrusion rubber.

[0008] Preferably, an inner cavity is provided on both sides of the clamping mechanism, a spring is connected to the inside of the inner cavity, an insert column is movably provided through the middle of the inner cavity and the spring, and a movable plate is fixedly connected to the surface around the insert column, and the movable plate moves inside the inner cavity.

[0009] Preferably, one end of the spring is connected to one end of the movable plate.

[0010] Preferably, both ends of the hydraulic column are provided with side grooves, and the inner end of the insertion column is inserted into the side grooves.

[0011] Preferably, the extruded rubber on the inner side of the pressure plate is extruded onto the surface of the tunnel segment.

[0012] Preferably, the clamping mechanism is provided with a connecting hole, the output end of the lower end of the hydraulic column is inserted into the connecting hole of the clamping mechanism, and the inner cavity is provided on both radial sides of the connecting hole.

[0013] The upper end of the clamping mechanism is provided with a groove, and the output end of the lower end of the hydraulic column is inserted into the groove of the clamping mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This utility model drives the movable plate to move horizontally by pulling the plug-in columns on both sides of the clamping mechanism, so that the plug-in columns (clamping mechanism) can be disengaged from the output end on the lower side of the hydraulic column. At this time, the clamping mechanism and the hydraulic column can be separated, and the user can replace the new pressure plate and extrusion rubber.

[0016] 2. In the present invention, during the lateral movement of the overall movable transport trolley, the side baffle at the upper end of the movable transport trolley drives the lateral movement of the overall tunnel segment, so that the support plate frame is horizontally inserted into the horizontal slot, and finally the side baffle at the upper end of the overall support plate frame provides support, preventing the gravity of the overall tunnel segment from being borne by the movable transport trolley at the lower end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the tunnel segments after separation on the movable transport trolley in the present invention;

[0019] Figure 3 For this utility model Figure 1 A magnified view of the three-dimensional structure at point A in the middle;

[0020] Figure 4 For this utility model Figure 3 Enlarged front view of the middle hydraulic column.

[0021] In the figure: 1. Connecting frame; 2. Hydraulic column; 3. Track; 4. Movable transport trolley; 5. Side baffle; 6. Tunnel segment; 7. Horizontal slot; 8. Support plate frame; 9. Side groove; 10. Pressure plate; 11. Clamping mechanism; 12. Extruded rubber; 13. Insertion column; 14. Inner cavity; 15. Movable plate; 16. Spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figures 1 to 4 The utility model provides an embodiment: a shield tunnel segment fatigue life detection device, including a track 3, a movable carrying trolley 4 is movably provided on the track 3, the upper end of the movable carrying trolley 4 is fixedly connected to a side baffle 5, the upper end of the side baffle 5 is placed with a tunnel segment 6, and the lower ends of both sides of the side baffle 5 are provided with a horizontal slot 7, both sides of the track 3 are fixedly connected to a support plate frame 8, one side of the support plate frame 8 is fixedly connected to a connecting frame 1, the front and rear sides of the upper end of the connecting frame 1 are fixedly connected to a hydraulic column 2, the output ends of the lower ends of the hydraulic columns 2 are connected to a pressure plate 10 through a clamping mechanism 11, and the lower end of the clamping mechanism 11 is fixedly connected to the pressure plate 10.

[0024] During the lateral movement of the overall movable transport trolley 4, the side baffle 5 at the upper end of the movable transport trolley 4 drives the lateral movement of the overall tunnel segment 6, so that the support plate frame 8 is horizontally inserted into the horizontal slot 7. Finally, the overall support plate frame 8 supports the side baffle 5 through the horizontal slot 7, avoiding the gravity of the overall tunnel segment 6 being borne by the movable transport trolley 4 at the lower end.

[0025] The tunnel segments 6 are moved to the lower ends of the two pressure plates 10 by the overall movable transport trolley 4, and the cross-sectional surface of the pressure plate 10 is set to an L-shaped structure. The two inner end faces of the pressure plate 10 are connected with extruded rubber 12. The clamping mechanism 11 at the upper end of the pressure plate 10 is clamped on the output end of the lower end of the hydraulic column 2. Then the overall hydraulic column 2 runs, and the output end of the lower end of the hydraulic column 2 presses the clamping mechanism 11 and the pressure plate 10 downward to detect how much pressure the overall tunnel segment 6 can withstand, and then detect the value of the tunnel segment 6's resistance to pressure fatigue. The extruded rubber 12 on the end face of the pressure plate 10 is made of rubber material. The setting of the extruded rubber 12 avoids the phenomenon of wear caused by the pressure plate 10 being squeezed on the tunnel segment 6.

[0026] An inner cavity 14 is provided on both sides of the clamping mechanism 11, wherein a spring 16 is connected to the inner portion of the inner cavity 14, and an insert column 13 is provided movably through the middle of the inner cavity 14 and the spring 16, and a movable plate 15 is fixedly connected to the surface around the insert column 13, and the movable plate 15 moves inside the inner cavity 14.

[0027] One end of the spring 16 is connected to one end of the movable plate 15, and side grooves 9 are provided at both ends of the hydraulic column 2. The inner end of the plug-in column 13 is inserted into the side groove 9, and the extruded rubber 12 on the inner side of the pressure plate 10 is squeezed on the surface of the tunnel segment 6. The upper end of the clamping mechanism 11 is provided with a groove, and the output end of the lower end of the hydraulic column 2 is inserted into the groove of the clamping mechanism 11.

[0028] The clamping mechanism 11 is provided with a connecting hole, and the output end of the lower end of the hydraulic column 2 is inserted into the connecting hole of the clamping mechanism 11, and the inner cavity 14 is provided on both radial sides of the connecting hole.

[0029] When in use, the plug-in columns 13 on both sides of the clamping mechanism 11 are pulled, so that the plug-in columns 13 drive the movable plate 15 to move horizontally, wherein the horizontal movement of the movable plate 15 squeezes the spring 16 inside the inner cavity 14, so that the spring 16 is squeezed and deformed. After the movable plate 15 moves horizontally in the inner cavity 14, one end of the plug-in column 13 is disengaged from the side grooves 9 on both sides of the hydraulic column 2, thereby allowing the clamping mechanism 11 to be disengaged from the output end on the lower side of the hydraulic column 2. This operation enables the integral extruded rubber 12, the entire clamping mechanism 11 and the hydraulic column 2 to be separated;

[0030] Then, the user can replace the new pressure plate 10 and the extruded rubber 12 by pulling and releasing the insertion column 13, and the clamping mechanism 11 is re-inserted into the side groove 9 at the lower end of the hydraulic column to fix the new pressure plate 10 and the extruded rubber 12.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A shield tunnel segment fatigue life detection device, comprising a track (3), characterized in that: A movable transport trolley (4) is movably provided on the track (3). The upper end of the movable transport trolley (4) is fixedly connected to a side baffle (5). The side baffle (5) is used to limit the tunnel segment (6). The lower ends of both sides of the side baffle (5) are provided with a transverse slot (7). Both sides of the track (3) are fixedly connected to a support plate frame (8). One side of the support plate frame (8) is fixedly connected to a connecting frame (1). The front and rear sides of the upper end of the connecting frame (1) are fixedly connected to hydraulic columns (2). The output end of the lower end of the hydraulic column (2) is detachably connected to a pressure plate (10) via a clamping mechanism (11). The lower end of the clamping mechanism (11) is fixedly connected to the pressure plate (10).

2. The shield tunnel segment fatigue life detection device according to claim 1, characterized in that: The support plate frame (8) is inserted transversely into the transverse slot (7).

3. The shield tunnel segment fatigue life detection device according to claim 2, characterized in that: The cross-section of the pressure plate (10) is configured as an L-shaped structure, and both inner end surfaces of the pressure plate (10) are connected to extrusion rubber (12).

4. The shield tunnel segment fatigue life detection device according to claim 3, characterized in that: Both sides of the clamping mechanism (11) are provided with inner cavities (14), the inner part of the inner cavity (14) is connected with a spring (16), a plug-in column (13) is movably provided in the middle of the inner cavity (14) and the spring (16), and a movable plate (15) is fixedly connected to the surface around the plug-in column (13), and the movable plate (15) moves inside the inner cavity (14).

5. The shield tunnel segment fatigue life detection device according to claim 4, characterized in that: One end of the spring (16) is connected to one end of the movable plate (15).

6. The shield tunnel segment fatigue life detection device according to claim 5, characterized in that: Both ends of the hydraulic column (2) are provided with side grooves (9), and the inner end of the insertion column (13) is inserted into the side grooves (9).

7. The shield tunnel segment fatigue life detection device according to claim 6, characterized in that: The extruded rubber (12) on the inner side of the pressure plate (10) is squeezed onto the surface of the tunnel segment (6).

8. The shield tunnel segment fatigue life detection device according to claim 4, characterized in that: The clamping mechanism (11) is provided with a connecting hole, the output end of the lower end of the hydraulic column (2) is inserted into the connecting hole of the clamping mechanism (11), and the inner cavity (14) is provided on both radial sides of the connecting hole.

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