Shield segment strength detection equipment

By simulating the splicing structure of the ring frame and tunnel segments, and combining pressure devices and sensors, the problem that existing equipment cannot reflect the stress difference after the overall splicing of tunnel segments is solved, and a comprehensive evaluation of the overall performance of tunnel segments is realized.

CN223742175UActive Publication Date: 2025-12-30HUNAN CITY UNIV
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Patent Information

Application Number
CN202423303240.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-30
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing tunnel segment strength testing equipment can only test one segment in a ring, which cannot reflect the stress difference of the segments after overall splicing, resulting in some defects not being detected in time.

Method used

A shield tunnel segment strength testing device was designed. By simulating the splicing structure of the ring frame and the segments, the device simulates the overall splicing of multiple segments. Combined with pressure devices and sensors, it collects pressure resistance data and can more comprehensively evaluate the overall performance of the segments.

Benefits of technology

It enables performance evaluation of tunnel segments after overall assembly, better reflects the defects of individual segments, and improves the comprehensiveness and accuracy of the inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses shield segment strength detection equipment, which relates to the technical field of segment detection and comprises a test base, a portal frame fixedly mounted on the test base, a pressure device fixedly mounted at the top of the portal frame, a bearing component arranged at the telescopic end of the pressure device, and pipe frames symmetrically arranged on the test base. Simulation ring frames are rotationally connected in the two pipe frames in a sleeved mode, bolts are inserted into the corresponding first splicing holes and the corresponding second splicing holes, the simulation ring frames and the pipe pieces can be spliced together, then the bolts are inserted into the corresponding third splicing holes, the pipe pieces can be spliced together, the pipe pieces are annularly spliced and installed, and the actual installation condition is simulated; the pressure device drives the bearing assembly to press downwards, the pressure device is matched with a sensor in the prior art to collect pressure resistance data, and by means of the structure, the actual use environment can be simulated to a certain extent, the overall performance of the duct pieces after connection can be better evaluated, and the comprehensive performance of the duct pieces can be more comprehensively reflected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipe piece detection technical field more specifically, the utility model relates to a kind of shield pipe piece strength detection equipment. BACKGROUND

[0002] Shield pipe piece strength detection equipment is mainly used to detect the strength and quality of pipe piece in shield construction, to ensure that it meets design requirements and safety standards, and the detection project includes compression resistance detection of pipe piece, and the existing strength detection equipment for compression resistance detection is usually to place pipe piece, and to complete detection by using pressure device to press down.

[0003] However, the current pipe piece strength detection equipment only detects one piece of pipe piece in a circle, and after pipe piece splicing is completed, the stress of pipe piece will have certain difference, which cannot reflect the performance of pipe piece after overall splicing, so that the defects of individual pipe piece are covered up, leading to that some problems cannot be discovered in time in overall detection. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a shield pipe piece strength detection equipment to solve the problem that the current pipe piece strength detection equipment only detects one piece of pipe piece in a circle, and after pipe piece splicing is completed, the stress of pipe piece will have certain difference, which cannot reflect the performance of pipe piece after overall splicing, so that the defects of individual pipe piece are covered up, leading to that some problems cannot be discovered in time in overall detection.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a shield pipe piece strength detection equipment, which comprises a test base, a gantry is fixedly installed on the test base, a pressure device is fixedly installed at the top of the gantry, a bearing assembly is arranged at the telescopic end of the pressure device, pipe racks are symmetrically arranged on the test base, simulation ring frames are rotatably connected in the two pipe racks, a splicing hole one corresponding to the splicing hole two is formed in the simulation ring frame, the pipe piece can be spliced with the simulation ring frame through the splicing hole two and the splicing hole one matched with connecting bolts, and a plurality of pipe pieces can be spliced together through the splicing hole three matched with connecting bolts, a drive shaft is rotatably connected between the two pipe racks, a drive motor one for driving the drive shaft to rotate is fixedly installed on one of the pipe racks, gears are fixedly connected to the drive shaft in a symmetrical manner, and toothed rings are fixedly connected to the two simulation ring frames.

[0006] Preferably, the bearing assembly comprises a bearing frame, the pressure device is used to drive the bearing frame to move vertically up and down, a pressing plate is fixedly installed at the bottom of the bearing frame, a plastic sleeve is arranged on the bottom surface of the pressing plate, and the plastic sleeve is filled with filling material.

[0007] Preferably, the pressing plate is arranged as an arc surface structure matched with the segment, and the shaping sleeve is made of a flexible water-permeable material.

[0008] Preferably, an auxiliary mounting assembly is arranged between the two simulation ring frames, the auxiliary mounting assembly comprises a driving motor two fixedly mounted on the test base and a reverse threaded rod rotationally connected to the test base, the driving motor two is used for driving the reverse threaded rod to rotate, the reverse threaded rod is symmetrically and threadedly driven by a threaded frame, the auxiliary ring is fixedly mounted on opposite sides of the threaded frame, the auxiliary ring is movably sleeved on the outer surface of the simulation ring frame, and the test base is fixedly provided with a limiting frame on the front and rear sides.

[0009] Preferably, the axial lines of the reverse threaded rod and the auxiliary ring are parallel to each other.

[0010] Preferably, a protection assembly is arranged below the segment, the protection assembly comprises a bridge slope frame and a guide plate fixedly mounted on the test base, the bridge slope frame is located below the segment, the bridge slope frame is fixedly communicated with the middle part of the guide plate on the front and rear sides, the front and rear sides of the bridge slope frame are smooth inclined surface structures, the middle part of the bridge slope frame is provided with a bridge hole, and the bridge hole covers the middle parts of the reverse threaded rod and the driving shaft.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The simulation ring frame and the segment can be spliced together by inserting the bolt into the corresponding splice hole one and splice hole two, and a plurality of segments can be spliced together by inserting the bolt into the corresponding splice hole three, the segment is spliced and installed in a ring shape, the actual installation condition is simulated, then, the load bearing assembly is pressed down by the pressure device, the sensor of the prior art is matched, the compression data is collected, by using the above structure, the actual use environment can be simulated to a certain extent, the overall performance of the segment after connection is better evaluated, and the comprehensive performance of the segment is better reflected.

[0013] The driving motor one drives the driving shaft to rotate, the gear engages the tooth ring to drive the simulation ring frame and the segment to rotate synchronously, so that the load bearing assembly can detect different positions on the segment, and in addition, when installing, after splicing the lowermost segment between the simulation ring frames, another segment is spliced at the same position by rotating the segment, so that compared with splicing the segments in sequence in a ring shape, this splicing method is simpler and more labor-saving.

[0014] The pressing plate assists in supporting the shaping sleeve, and at the same time, the filling material is moistened by the watering mode, so that the shaping sleeve can seep water when the segment is extruded by the load bearing assembly, so that the water seepage condition of the segment under pressure can be detected, and the detection effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is main body structure schematic view of the utility model;

[0016] Figure 2 It is simulation ring frame and pipe piece splicing structure schematic view of the utility model;

[0017] Figure 3 It is bearing assembly structure schematic view of the utility model;

[0018] Figure 4 It is auxiliary installation assembly structure schematic view of the utility model;

[0019] Figure 5 It is protection assembly structure schematic view of the utility model.

[0020] [Reference signs]

[0021] 1, test base;2, gantry;3, pressure device;4, bearing assembly;41, bearing frame;42, pressing plate;43, shaping sleeve;44, filler;5, pipe frame;6, simulation ring frame;61, splicing hole one;7, pipe piece;71, splicing hole two;72, splicing hole three;8, drive shaft;9, drive motor one;10, gear;11, gear ring;12, auxiliary installation assembly;121, drive motor two;122, opposite screw rod;123, threaded frame;124, auxiliary ring;125, limiting frame;13, protection assembly;131, bridge slope frame;132, guide plate;133, bridge hole. Specific implementation

[0022] In order to make the technical problem, technical scheme and advantages to be solved by the utility model more clear, the following will be described in detail in conjunction with the drawings and specific embodiments.

[0023] As attached Figure 1 to attached Figure 5 The embodiment of the utility model provides a kind of shield pipe piece strength detection equipment, including test base 1, test base 1 is fixedly installed with gantry 2, the top of gantry 2 is fixedly installed with pressure device 3, and the telescopic end of pressure device 3 is provided with bearing assembly 4, test base 1 is symmetrically provided with pipe frame 5, two pipe frames 5 are rotatably connected with simulation ring frame 6, simulation ring frame 6 is provided with splicing hole one 61 corresponding with splicing hole two 71, pipe piece 7 can be connected with simulation ring frame 6 by splicing hole two 71, splicing hole one 61 and splicing bolt, and multiple pipe pieces 7 can be spliced together by splicing hole three 72 and splicing bolt, two pipe frames 5 are rotatably connected with drive shaft 8, one of pipe frame 5 is fixedly installed with drive motor one 9 for driving drive shaft 8 to rotate, gear 10 is fixedly connected on drive shaft 8, gear ring 11 is fixedly connected on two simulation ring frames 6, and gear 10 is engaged with gear ring 11.

[0024] Specifically, the bolts are inserted into the corresponding splicing holes one 61 and splicing holes two 71, the simulation ring frame 6 and the segment 7 are spliced together, and the bolts are inserted into the corresponding splicing holes three 72 to splice multiple segments 7 together, and the segment 7 is spliced in a ring shape, simulating the actual installation condition, and then the load-bearing assembly 4 is driven to be pressed down by the pressure device 3, and the existing sensor is matched to collect the compression data.

[0025] Further, the driving motor one 9 is driven to drive the driving shaft 8 to rotate, so that the gear 10 meshes with the gear ring 11 to drive the simulation ring frame 6 and the segment 7 to rotate synchronously, so that the load-bearing assembly 4 can detect different positions on the segment 7, and in addition, when the lowermost segment 7 is spliced between the simulation ring frame 6, another segment 7 is spliced at the same position by rotating the segment 7, so that compared with the segment 7 being spliced in a ring shape, this splicing method is simpler and more labor-saving.

[0026] Preferably, the load-bearing assembly 4 comprises a bearing frame 41, and the pressure device 3 is used to drive the bearing frame 41 to move vertically up and down, and the bottom of the bearing frame 41 is fixedly installed with a pressing plate 42, and the bottom surface of the pressing plate 42 is provided with a shaped sleeve 43, and the shaped sleeve 43 is filled with a filler 44.

[0027] Preferably, the pressing plate 42 is provided in an arc surface structure matched with the segment 7, and the shaped sleeve 43 is made of a flexible water-permeable material.

[0028] Among them, the pressing plate 42 assists in supporting the shaped sleeve 43, and at the same time, the filler 44 is moistened by watering, so that when the segment 7 is extruded by the load-bearing assembly 4, the shaped sleeve 43 can make water seep out, so that the water seepage of the segment 7 under pressure can be detected.

[0029] Among them, the filler 44 is preferably a mixture of sand, soil and corresponding gravel particles, which has a certain water absorption capacity and can effectively simulate the characteristics of natural soil.

[0030] Preferably, an auxiliary installation assembly 12 is arranged between the two simulation ring frames 6, the auxiliary installation assembly 12 comprises a driving motor two 121 fixedly installed on the test base 1 and a reverse threaded rod 122 rotationally connected to the test base 1, the driving motor two 121 is used to drive the reverse threaded rod 122 to rotate, the reverse threaded rod 122 is symmetrically threaded with a threaded frame 123, the threaded frame 123 is fixedly installed with an auxiliary ring 124 on opposite sides, the auxiliary ring 124 is movably sleeved on the outer surface of the simulation ring frame 6, and the test base 1 is fixedly installed with a limiting frame 125 on the front and rear sides, and the auxiliary ring 124 is slidably connected to the limiting frame 125.

[0031] Preferably, the axis lines of the reverse threaded rod 122 and the auxiliary ring 124 are parallel to each other.

[0032] Specifically, by rotating the reverse threaded rod 122, the symmetrical threaded frame 123 and the auxiliary ring 124 are threadedly driven to move towards or away from each other, and the limiting frame 125 is matched to keep the symmetrical threaded frame 123 and the auxiliary ring 124 moving linearly towards or away from each other, when it is necessary to install the pipe piece 7, the pipe piece 7 is installed by moving the auxiliary ring 124 towards each other and being attached to the auxiliary ring 124 on both sides, so that the pipe piece 7 is quickly aligned with the simulation ring frame 6, and the installation efficiency is improved, and vice versa, when detecting, the auxiliary ring 124 is moved away to avoid structural interference between the bearing assembly 4 and the auxiliary ring 124, and to affect detection.

[0033] Preferably, the lower portion of the pipe piece 7 is provided with a protection assembly 13, the protection assembly 13 comprises a bridge slope frame 131 and a guide plate 132 fixedly installed on the test base 1, the bridge slope frame 131 is located below the pipe piece 7, the front and rear sides of the bridge slope frame 131 are fixedly communicated with the middle portion of the guide plate 132, the front and rear sides of the bridge slope frame 131 are smooth inclined surface structures, the middle portion of the bridge slope frame 131 is provided with a bridge hole 133, and the bridge hole 133 covers the middle portions of the reverse threaded rod 122 and the driving shaft 8, so as to protect the driving shaft 8 and the reverse threaded rod 122.

[0034] Specifically, during the detection of the pressure of the pipe piece 7, the produced gravel and the like can slide into the guide plate 132 along the inclined surface of the bridge slope frame 131, and then the gravel can be swept out and cleaned by the worker along the reverse threaded rod 122.

[0035] The working process of the utility model is as follows:

[0036] In use, the auxiliary ring 124 is driven to move towards each other by the driving motor two 121, the pipe piece 7 is installed by being attached to the auxiliary ring 124 on both sides, so that the pipe piece 7 is quickly aligned with the simulation ring frame 6, then the bolt is inserted into the corresponding splicing hole one 61 and splicing hole two 71, the simulation ring frame 6 and the pipe piece 7 can be spliced together, the bolt is inserted between the corresponding splicing hole three 72, and a plurality of pipe pieces 7 can be spliced together, the pipe piece 7 is annularly spliced and installed, the actual installation condition is simulated, then the bearing assembly 4 is driven to press down by the pressure device 3, and the existing sensor is matched to collect the compression data.

[0037] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0038] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure with the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0039] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A shield segment strength detection apparatus, characterized by, The utility model relates to a test base (1) is provided with gantry (2) on it, the top of gantry (2) is fixedly installed with pressure device (3), the telescopic end of pressure device (3) is provided with bearing assembly (4), the test base (1) is provided with pipe frame (5) on it, and the pipe frame (5) is rotatably sleeved with simulation ring frame (6) in two, the simulation ring frame (6) is provided with splicing hole no.

2. The shield segment strength detection apparatus according to claim 1, characterized by, The bearing assembly (4) includes a bearing frame (41), and the pressure device (3) is used for driving the bearing frame (41) to move vertically up and down.

3. The shield segment strength detection apparatus according to claim 2, characterized by, The bottom of the bearing frame (41) is fixedly installed with a pressing plate (42), the bottom surface of the pressing plate (42) is provided with a plastic sleeve (43), and the plastic sleeve (43) is filled with a filling material (44).

4. The shield segment strength detection apparatus according to claim 1, characterized by, The pressing plate (42) is provided as an arc surface structure matched with the pipe piece (7), and the plastic sleeve (43) is made of a flexible water-permeable material.

5. The shield segment strength detection apparatus according to claim 4, characterized by, Two simulation ring frames (6) are provided with an auxiliary mounting assembly (12) therebetween, the auxiliary mounting assembly (12) includes a driving motor two (121) fixedly installed on the test base (1) and a reverse threaded rod (122) rotatably connected to the test base (1), the driving motor two (121) is used for driving the reverse threaded rod (122) to rotate, the reverse threaded rod (122) is symmetrically screw-threadedly driven by a threaded frame (123), the threaded frame (123) is fixedly installed with an auxiliary ring (124) on the opposite side, the auxiliary ring (124) is movably sleeved on the outer surface of the simulation ring frame (6), and the front and rear sides of the test base (1) are both fixedly installed with a limiting frame (125), and the auxiliary ring (124) is slidably connected to the limiting frame (125). The axial lines of the reverse threaded rod (122) and the auxiliary ring (124) are parallel to each other.

6. The shield segment strength detection apparatus according to claim 1, characterized by, The pipe piece (7) is provided with a protection assembly (13) below, the protection assembly (13) comprises a bridge slope frame (131) and a guide plate (132) fixedly installed on the test base (1), the bridge slope frame (131) is located below the pipe piece (7), the front and rear sides of the bridge slope frame (131) are fixedly communicated with the middle part of the guide plate (132), the front and rear sides of the bridge slope frame (131) are smooth inclined plane structures, the middle part of the bridge slope frame (131) is provided with a bridge hole (133), and the bridge hole (133) covers the middle part of the opposite screw rod (122) and the driving shaft (8).