A shield tunnel segment temporary connection testing device

Abstract

The application discloses a shield tunnel segment temporary connection testing device, which comprises a base plate, a flat plate is fixedly connected to one side of the base plate through a connecting column, a segment deformation tester is arranged in the middle of the flat plate, an anti-collision device is arranged on one side of the flat plate, the anti-collision device comprises a base rod, the base rod reciprocatingly slides in a sliding hole of the flat plate, a supporting plate is fixedly connected to the bottom of the base rod, a first spring is fixedly connected between the supporting plate and the flat plate, a guide hole is arranged on one side of the base rod, a guide rod is slidably connected in the guide hole, a detection rod is fixedly connected to one end of the guide rod, a second spring is fixedly connected between the detection rod and the base rod, a transmission assembly is arranged on the other end of the guide rod, the transmission assembly is arranged opposite to the segment deformation tester, and when the detection rod encounters an obstacle that cannot be crossed, the segment deformation tester can be driven to shrink through the transmission assembly to avoid the obstacle. The shield tunnel segment temporary connection testing device has the advantages that an additional safety device is arranged in front of the testing rod, and collision between the testing rod and the segment can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grouting reinforcement technology, and particularly relates to a shield tunnel segment temporary connection testing device. BACKGROUND

[0002] The shield method is a fully mechanized construction method in the construction of the cut-and-cover method, which is to push the shield machine in the ground, support the surrounding rock on all sides with the shield shell and the segment to prevent collapse into the tunnel, simultaneously excavate the soil in front of the excavation face with a cutting device, transport the excavated soil out of the hole with the soil removal machine, and push forward by the jack in the rear part and assemble the prefabricated concrete segments to form a mechanized construction method of the tunnel structure. Before the above construction, the prefabricated concrete segments need to be tested, as shown in Figure 4 , the prior art tests the deformation of the segments 100 by applying pressure to the temporary tunnel pipe formed by the misaligned splicing of multiple segments 100 and using a segment deformation tester. During the testing process, as shown in Figure 5 and Figure 6 , after the deformation of the segments 100, a misalignment is formed between the two adjacent segments 100, and the angle of the misalignment may be greater than 90° or less than 90°, as shown in Figure 6 When the misalignment angle A between the two segments 100 is greater than or equal to 90 degrees, the segment deformation tester is prone to collision with the misalignment during the testing process, thereby damaging the segment deformation tester. SUMMARY

[0003] The present application aims to solve the problems in the prior art and provides a shield tunnel segment temporary connection testing device to solve the problems in the prior art.

[0004] To achieve the above object, the present application adopts the following technical scheme:

[0005] A shield tunnel segment temporary connection testing device, comprising a base plate, a flat plate is fixedly connected to one side of the base plate through a connecting column, a segment deformation tester is arranged in the middle of the flat plate, an anti-collision device is arranged on one side of the flat plate, the anti-collision device comprises a base rod, the base rod reciprocally slides in a sliding hole of the flat plate, a supporting plate is fixedly connected to the bottom of the base rod, a first spring is fixedly connected between the supporting plate and the flat plate, a guide hole is arranged on one side of the base rod, a guide rod is slidably connected in the guide hole, a detection rod is fixedly connected to one end of the guide rod, a second spring is fixedly connected between the detection rod and the base rod, a transmission assembly is arranged on the other end of the guide rod, the transmission assembly is arranged opposite to the segment deformation tester, and when the detection rod encounters an obstacle that cannot be passed, the segment deformation tester can be driven to retract by the transmission assembly to avoid the obstacle.

[0006] Preferably, the segment deformation tester comprises a fixed block, a tapered hole is arranged at the bottom of the fixed block, a tapered block is arranged in the tapered hole, one side of the tapered block is fixedly connected with a test rod, the test rod slides in a center hole at the bottom of the tapered hole, and the third spring is fixedly connected between the tapered block and the bottom of the tapered hole.

[0007] Preferably, the transmission assembly comprises a transmission rod, a touch block and a pressing block, the transmission rod is fixed with the guide rod, the transmission rod passes through the accommodation groove of the flat plate, the touch block is fixed at one end of the transmission rod away from the guide rod, and the pressing block is fixed at one side of the tapered block.

[0008] Preferably, a first inclined surface is arranged below one side of the touch block, a second inclined surface is arranged above one side of the pressing block, and the first inclined surface and the second inclined surface are arranged in correspondence.

[0009] Preferably, a bottom plate is arranged at one side of the base plate, a support column is fixedly connected to the middle of the bottom plate, the support column is hingedly connected with the base plate through a hinge, an electric telescopic rod is arranged between the base plate and the bottom plate, one end of the electric telescopic rod is hingedly connected with the base plate, and the other end of the electric telescopic rod is hingedly connected with the bottom plate.

[0010] The present application has the advantages that the shield tunnel segment temporary connection testing device provided by the present application increases an insurance in front of the test rod, when the segment misalignment angle A between two segments is less than 90 degrees, the detection rod can smoothly pass through the misalignment, when the segment misalignment angle A between two segments is greater than or equal to 90 degrees, the transmission assembly makes the tapered block and the test rod descend, so that the test rod avoids the misalignment and passes through, and collision between the test rod and the segments can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a basic structure schematic diagram of the present application;

[0012] Figure 2 is a structure schematic diagram of the segment deformation tester;

[0013] Figure 3 is Figure 1 is an enlarged view of A of the segment deformation tester;

[0014] Figure 4 is a use state diagram of the present application;

[0015] Figure 5 is a state diagram of deformation between adjacent segments;

[0016] Figure 6 is another state diagram of deformation between adjacent segments. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] Example 1

[0019] like Figures 1-3 As shown, the present invention provides a temporary connection testing device for shield tunnel segments, comprising a base plate 12, a base plate 1 on one side of the base plate 12, a support column 11 fixedly connected to the middle of the base plate 1, the support column 11 being hinged to the base plate 12, and an electric telescopic rod 13 provided between the base plate 12 and the base plate 1. One end of the electric telescopic rod 13 is hinged to the base plate 12, and the other end of the electric telescopic rod 13 is hinged to the base plate 1. During operation, the electric telescopic rod 13 enables the base plate 12 to swing back and forth.

[0020] The substrate 12 is fixedly connected to a plate 2 on one side by two connecting posts 14. A segment deformation tester 3 is mounted in the middle of the plate 2. The segment deformation tester 3 includes a fixing block 31 with a conical hole at the bottom. A conical block 32 is placed inside the conical hole. A test rod 33 is fixedly connected to one side of the conical block 32. The test rod 33 slides in the center hole at the bottom of the conical hole. A third spring 34 is fixedly connected between the conical block 32 and the bottom of the conical hole. A displacement sensor 9 is fixedly connected to one side of the substrate 12, and the displacement sensor 9 is arranged opposite to the conical block 32.

[0021] During use, please refer to Figure 4 The tunnel segments 100 are assembled into a tunnel within the test box 200. Sand and gravel 300 are filled between the test box 200 and the tunnel. Then, the temporary connection test device for tunnel segments provided by this invention is installed on the support 500. The support 500 rotates, and the top of the test rod 33 is in close contact with the tunnel segment 100. When the tunnel segment 100 deforms, the test rod 33 exerts pressure on the displacement sensor 9 through the conical block 32, causing the displacement sensor 9 to deform relatively, thereby testing the amount of deformation of the tunnel segment 100.

[0022] During the testing process, see Figure 5 and Figure 6 After segment 100 deforms, a misalignment will form between two adjacent segments 100. The angle of the misalignment may be greater than 90° or less than 90°. See [link / reference]. Figure 5 When the misalignment angle A between two segments 100 is less than 90 degrees, the segment deformation tester can cross the slope. When the misalignment angle A between two segments 100 is greater than or equal to 90 degrees, see [reference needed]. Figure 6, the pipe segment deformation tester is easy to collide with the misaligned segment during the testing process, thus damaging the pipe segment deformation tester. Therefore, an anti-collision device 4 is arranged on one side of the flat plate 2, which comprises a base rod 41 reciprocally sliding in a sliding hole of the flat plate 2, a supporting plate 42 fixedly connected to the bottom of the base rod 41, a first spring 43 fixedly connected between the supporting plate 42 and the flat plate 2, a guide hole arranged on one side of the base rod 41, a guide rod 44 slidingly connected in the guide hole, a detection rod 45 fixedly connected to one end of the guide rod 44, a second spring 43 fixedly connected between the detection rod 45 and the base rod 41, a transmission assembly arranged on the other end of the guide rod 44, the transmission assembly being oppositely arranged with the pipe segment deformation tester 3, the transmission assembly comprising a transmission rod 47, a touch block 48 and an extrusion block 35, the transmission rod 47 being fixed with the guide rod 44, the transmission rod 47 passing through a gap slot of the flat plate 2, the touch block 48 being fixed on the end of the transmission rod 47 away from the guide rod 44, and the extrusion block 35 being fixed on one side of the tapered block 32. A first inclined surface is arranged on the lower side of one side of the touch block 48, and a second inclined surface is arranged on the upper side of one side of the extrusion block 35, the first inclined surface being correspondingly arranged with the second inclined surface.

[0023] During use, when the detection rod 45 encounters an obstacle that cannot be passed, the pipe segment deformation tester 3 can be driven to retract by the transmission assembly to avoid the obstacle. The specific working process is as follows: when the misaligned angle A between the two pipe segments 100 is less than 90 degrees, the detection rod 45 can pass through the misaligned segment, and the misaligned segment can decompose the downward force on the detection rod 45, so that the base rod 41 moves downward, at this time, the detection rod 45 can smoothly pass through the misaligned segment, and by the same token, the detection rod 45 can smoothly pass through the misaligned segment, so the testing rod 33 can also smoothly pass through the misaligned segment. When the misaligned angle A between the two pipe segments 100 is greater than or equal to 90 degrees, at this time, when the detection rod 45 passes through the misaligned segment, the misaligned segment cannot decompose the downward force on the detection rod 45, at this time, only the guide rod 44 translates, and in the process of translation of the guide rod 44, the touch block 48 will be in contact with the extrusion block 35, so that the tapered block 32 and the testing rod 33 are lowered under the action of the first inclined surface and the second inclined surface, so that the testing rod 33 avoids the misaligned segment and passes through. It is equivalent to adding an insurance in front of the testing rod 33, which can avoid the collision between the testing rod 33 and the pipe segment.

[0024] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A temporary connection testing device for shield tunnel segments, comprising a base plate (12), wherein a plate (2) is fixedly connected to one side of the base plate (12) via a connecting post (14), and a segment deformation tester (3) is mounted in the middle of the plate (2), characterized in that: The plate (2) is equipped with an anti-collision device (4) on one side. The anti-collision device (4) includes a base rod (41). The base rod (41) slides back and forth in the sliding hole of the plate (2). The bottom of the base rod (41) is fixedly connected to a support plate (42). The support plate (42) and the plate (2) are fixedly connected to a first spring (43). The base rod (41) is provided with a guide hole on one side. A guide rod (44) is slidably connected in the guide hole. One end of the guide rod (44) is fixedly connected to a detection rod (45). The detection rod (45) and the base rod (41) are fixedly connected to a second spring (46). The other end of the guide rod (44) is equipped with a transmission assembly. The transmission assembly is set opposite to the segment deformation tester (3). When the detection rod (45) encounters an obstacle that cannot be crossed, the transmission assembly can drive the segment deformation tester (3) to retract to avoid the obstacle. The segment deformation tester (3) includes a fixing block (31), the bottom of the fixing block (31) is provided with a conical hole, a conical block (32) is provided in the conical hole, a test rod (33) is fixedly connected to one side of the conical block (32), the test rod (33) slides in the center hole at the bottom of the conical hole, and a third spring (34) is fixedly connected between the conical block (32) and the bottom of the conical hole; The transmission assembly includes a transmission rod (47), a contact block (48), and a pressing block (35). The transmission rod (47) is fixed to the guide rod (44). The transmission rod (47) passes through the relief groove of the plate (2). The contact block (48) is fixed to the end of the transmission rod (47) away from the guide rod (44). The pressing block (35) is fixed to one side of the conical block (32). The touch block (48) has a first inclined surface on one side below, and the extrusion block (35) has a second inclined surface on one side above, with the first inclined surface and the second inclined surface corresponding to each other.

2. The shield tunnel segment temporary connection testing device according to claim 1, characterized in that: A base plate (1) is provided on one side of the substrate (12). A support column (11) is fixedly connected to the middle of the base plate (1). The support column (11) is hinged to the substrate (12) by a hinge. An electric telescopic rod (13) is provided between the substrate (12) and the base plate (1). One end of the electric telescopic rod (13) is hinged to the substrate (12), and the other end of the electric telescopic rod (13) is hinged to the base plate (1).

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