CN219434556U - Bearing table for tunnel segment bending resistance experiment - Google Patents
Bearing table for tunnel segment bending resistance experiment Download PDFInfo
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- CN219434556U CN219434556U CN202320080749.6U CN202320080749U CN219434556U CN 219434556 U CN219434556 U CN 219434556U CN 202320080749 U CN202320080749 U CN 202320080749U CN 219434556 U CN219434556 U CN 219434556U
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- 238000005452 bending Methods 0.000 title claims abstract description 37
- 238000002474 experimental method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model discloses a bearing table for tunnel segment bending resistance experiments, which comprises a longitudinal pressurizing device, a guide rail frame and two bases, wherein the bases comprise a sliding base and a first supporting unit; the first supporting unit comprises a fixed plate, a hinged frame, a seat plate, an angle adjusting rod and a stroke adjusting device; the sliding base is assembled on the guide rail frame in a sliding way, and the fixing plate is arranged at one end, far away from the guide rail frame, of the sliding base; the bottom of the hinged frame is fixed on the fixed plate, the top of the hinged frame is hinged with the upper end of the seat plate, the lower end of the seat plate is hinged with one end of the angle adjusting rod, the other end of the angle adjusting rod is connected with the stroke adjusting device, and the stroke adjusting device is used for adjusting the extending length of the angle adjusting rod. The plummer passes through the extension length of stroke adjusting device control angle regulation pole to adjust the inclination of bedplate, make the both ends of the tunnel segment of different radians can laminate on the bedplate, simulate out the state of tunnel segment at the during operation, reduce the error of bending resistance test.
Description
Technical Field
The utility model relates to the field of tunnel segment detection equipment, in particular to a bearing table for a tunnel segment bending resistance experiment.
Background
At present, along with the rapid development of domestic subways, the shield tunnel segments are used more and more widely. However, the single-layer lining is used as a permanent support, and particularly waterproof, crack development and the like are required, so that the requirements on the performances of the tunnel segment are higher and higher, and the comprehensive performances of the tunnel segment in all aspects are more and more emphasized. Based on the requirements, various characteristic tunnel segments capable of effectively limiting crack development and high in comprehensive performance are gradually applied to actual engineering.
In the practical application process of the tunnel duct piece, the two ends of the tunnel duct piece are respectively clung to the end faces of other tunnel duct pieces, but the base of the existing test bench cannot be suitable for the tunnel duct pieces with different radians, cannot be adjusted according to the radians of the tunnel duct pieces, and the two ends of the tunnel duct pieces with different radians cannot be completely attached to the base, so that the state of the tunnel duct pieces in the working process cannot be completely simulated in a bending-resistant experiment, errors are generated between bending-resistant data and practical application, and potential safety hazards exist.
Disclosure of Invention
The utility model aims to provide a bearing table for a tunnel segment bending resistance experiment, so as to solve the problem that a base of the test table cannot be suitable for tunnel segments with different radians.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a bearing table for tunnel segment bending resistance experiments, which comprises a longitudinal pressurizing device, a guide rail frame and two bases, wherein the two bases are arranged on the guide rail frame;
the base comprises a sliding base and a first supporting unit; the first supporting unit comprises a fixed plate, a hinged frame, a seat plate, an angle adjusting rod and a stroke adjusting device; the sliding base is assembled on the guide rail frame in a sliding way, and the fixing plate is arranged at one end, far away from the guide rail frame, of the sliding base; the bottom of the hinged frame is fixed on the fixed plate, the top of the hinged frame is hinged with the upper end of the seat board, the lower end of the seat board is hinged with one end of the angle adjusting rod, the other end of the angle adjusting rod is connected with the stroke adjusting device, and the stroke adjusting device is used for adjusting the extending length of the angle adjusting rod.
In the bearing table for tunnel segment bending resistance experiments, the stroke adjusting device is an adjusting seat, and the adjusting seat is fixed on the sliding base; the adjusting seat is provided with a screw hole; the other end of the angle adjusting rod is provided with threads and is in threaded connection with the screw hole.
The lower end of the seat board is provided with a first hinging seat, a first hinging rod and a first fixing nut, and one end of the angle adjusting rod is provided with a through hole; one end of the first hinging rod is provided with a first limiting block, and the other end of the first hinging rod penetrates through the first hinging seat and the through hole and is assembled with the first fixing nut in a threaded manner;
in the bearing table for the tunnel segment bending test, the hinge bracket comprises a first hinge post, a second hinge post, a hinge connecting rod and a second fixing nut;
the first hinge post is fixed to the front side of the stroke adjustment device, and the second hinge post is fixed to the rear side of the stroke adjustment device; the upper end of the seat plate is provided with a second hinging seat and a third hinging seat which are coaxially arranged, and the second hinging seat is arranged at the front side of the third hinging seat; one end of the hinged connecting rod is provided with a second limiting block, and the other end of the hinged connecting rod penetrates through the first hinged column, the second hinged seat, the second hinged column and the third hinged seat and is assembled with the second fixing nut in a threaded mode.
In the plummer for tunnel segment bending test, the base still includes the second supporting element, the structure of second supporting element is the same with the structure of first supporting element, first supporting element set up in slide base's front end near-end department, the second supporting element set up in slide base's rear end near-end department.
In the bearing table for the tunnel segment bending resistance experiment, the longitudinal pressurizing device comprises a portal frame, a longitudinal jack and a data acquisition device;
the portal frame is erected in the middle of the guide rail frame, the fixed end of the longitudinal jack is arranged on the portal frame, and the output end of the longitudinal jack is arranged downwards;
the data acquisition device is arranged at the upper part of the longitudinal jack or in the guide rail frame.
In the bearing table for tunnel segment bending resistance experiments, one side of the seat plate connected with the hinge bracket is provided with a plurality of reinforcing ribs.
In the plummer for tunnel segment bending test, both sides all are equipped with first reinforcing plate around first articulated column and the second articulated column.
In the plummer for tunnel segment bending test, the one end and the sliding base of fixed plate are connected, the unsettled setting of the other end of fixed plate, sliding base's lateral wall with contained angle between the other end of fixed plate is equipped with a plurality of second reinforcing plates, second reinforcing plate interval sets up.
One technical scheme of the utility model has the following beneficial effects:
the bearing table for the tunnel segment bending resistance experiment is provided with a first supporting unit, and the extending length of the angle adjusting rod is controlled and adjusted through the travel adjusting device, so that the inclination angle of the seat plate is adjusted. According to the inclination of the radian adjustment bedplate of tunnel segment for the both ends of the tunnel segment of different radians can laminate on the bedplate, simulate out the state of tunnel segment at the during operation, reduce the error between bending resistance test and the practical application, reduce and have the potential safety hazard.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present utility model;
FIG. 2 is a schematic view of the other side of the embodiment of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural view of a first supporting unit according to one embodiment of the present utility model;
in the accompanying drawings: a longitudinal pressurizing device 1, a guide rail frame 2 and a base 3; tunnel segment 4;
a portal frame 11 and a longitudinal jack 12; a slide base 31, a first support unit 32, a second support unit 32;
a fixed plate 321, a hinge bracket 322, a seat plate 323, an angle adjusting lever 324, and a stroke adjusting device 325; a first hinge seat 326, a first fixing nut 328; a second hinge base 329; a third hinge base 320;
a second reinforcing plate 3111; a first hinge post 3221, a second hinge post 3222, a hinge link 3223, a second fixing nut 3224; a second stopper 3225; a first reinforcing plate 3226; reinforcing ribs 3231; screw hole 3251; the first stopper 3271.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" or "a plurality" means two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the utility model provides a bearing table for tunnel segment bending test, which comprises a longitudinal pressurizing device 1, a guide rail frame 2 and two bases 3, wherein the two bases 3 are arranged on the guide rail frame 2, and the longitudinal pressurizing device 1 is arranged in the middle of the guide rail frame 2;
the base 3 includes a slide base 31 and a first supporting unit 32; the first supporting unit 32 includes a fixed plate 321, a hinge bracket 322, a seat plate 323, an angle adjusting lever 324, and a stroke adjusting device 325; the sliding base 31 is slidably assembled on the guide rail frame 2, and the fixing plate 321 is disposed at one end of the sliding base 31 away from the guide rail frame 2; the bottom of the hinge bracket 322 is fixed on the fixed plate 321, the top of the hinge bracket 322 is hinged to the upper end of the seat plate 323, the lower end of the seat plate 323 is hinged to one end of the angle adjusting rod 324, the other end of the angle adjusting rod 324 is connected with the stroke adjusting device 325, and the stroke adjusting device 325 is used for adjusting the extending length of the angle adjusting rod 324.
The bearing table for tunnel segment bending test is provided with a first supporting unit 32, and the extending length of the angle adjusting rod 324 is controlled and adjusted by the stroke adjusting device 325, so as to adjust the inclination angle of the seat plate 323. According to the inclination of the radian adjustment bedplate 323 of tunnel segment 4 for the both ends of the tunnel segment 4 of different radians can laminate on bedplate 323, simulate out the state of tunnel segment 4 at the during operation, reduce the error between bending test and the practical application, reduce and have the potential safety hazard.
When the included angle between the end face of the tunnel segment 4 and the horizontal plane is larger, the worker can control the angle adjusting rod 324 to retract through the stroke adjusting device 325, so that the angle adjusting rod 324 drives the seat plate 323 to rotate downwards, and the seat plate 323 is tightly attached to the end face of the tunnel segment 4. Similarly, when the included angle between the end surface of the tunnel segment 4 and the horizontal plane is smaller, the worker can control the angle adjusting rod 324 to extend through the stroke adjusting device 325, so that the angle adjusting rod 324 drives the seat plate 323 to rotate upwards, and the seat plate 323 is tightly attached to the end surface of the tunnel segment 4.
The sliding base 31 and the guide rail frame 2 are assembled in a sliding manner, and the distance between the two bases 3 can be adjusted according to the actual outer diameter of the tunnel duct piece 4, so that the bearing table for the tunnel duct piece bending resistance experiment can be used for different tunnel duct pieces 4, and the applicability is enhanced. The longitudinal pressurizing device 1 is used for loading the tunnel segment 4, so that the tunnel segment 4 is subjected to vertical downward pressure, and a bending resistance test is realized. A plummer for tunnel segment bending test can load a plurality of detecting element, including pressure sensor, laser displacement sensor and take the high accuracy camera of scale, pressure sensor assembles in vertical pressurizing device 1 or base 3 for detect the pressure that tunnel segment 4 received. The laser displacement sensor and the high-precision camera with scales are used for detecting deformation of the tunnel segment 4 and providing specific data.
Specifically, the stroke adjusting device 325 is an adjusting seat, and the adjusting seat is fixed to the sliding base 31; the adjusting seat is provided with a screw hole 3251; the other end of the angle adjusting rod 324 is provided with threads and is in threaded connection with the screw hole;
the lower end of the seat plate 323 is provided with a first hinging seat 326, a first hinging rod and a first fixing nut 328, and one end of the angle adjusting rod 324 is provided with a through hole; one end of the first hinge rod is provided with a first limiting block 3271, and the other end of the first hinge rod passes through the first hinge seat 326 and the through hole and is assembled with the first fixing nut 328 in a threaded manner.
In one embodiment of the present utility model, the stroke adjustment device 325 is embodied as an adjustment seat, which is simple in structure, stable and firm, can withstand large loads, and is simple to operate.
When the extending length of the angle adjusting rod 324 needs to be adjusted, the first fixing nut 328 is separated from the other end of the first hinge rod, and the first hinge rod is pulled out; rotating the seat plate 323 to enable the seat plate 323 to be attached to the end face of the tunnel segment 4; subsequently, the angle adjusting lever 324 is rotated, and the length of the angle adjusting lever 324 is changed so that the length of the angle adjusting lever 324 is adapted to the rotation angle of the seat plate 323; finally, the first hinge rod is again passed through the first hinge seat 326 and the through hole, and the first fixing nut 328 is re-screw-assembled with the other end of the first hinge rod.
Specifically, the hinge bracket 322 includes a first hinge post 3221, a second hinge post 3222, a hinge link 3223, and a second fixing nut 3224;
the first hinge post 3221 is fixed to the front side of the stroke adjustment device 325, and the second hinge post 3222 is fixed to the rear side of the stroke adjustment device 325; the upper end of the seat plate 323 is provided with a second hinge seat 329 and a third hinge seat 320 which are coaxially arranged, and the second hinge seat 329 is arranged at the front side of the third hinge seat 320; one end of the hinge rod 3223 is provided with a second limiting block 3225, and the other end of the hinge rod 3223 passes through the first hinge post 3221, the second hinge base 329, the second hinge post 3222 and the third hinge base 320 and is assembled with the second fixing nut 3224 in a threaded manner.
In one embodiment of the present utility model, the hinge bracket 322 includes a first hinge post 3221, a second hinge post 3222, a hinge link 3223, and a second fixing nut 3224. Through setting up first hinge post 3221 and second hinge post 3222, reinforcing structural stability improves hinge frame 322 intensity, prevents that hinge frame 322 from taking place deformation at bending test in-process, influences the test result.
Specifically, the base 3 further includes a second supporting unit 32, the second supporting unit 32 has the same structure as the first supporting unit 32, the first supporting unit 32 is disposed at the front proximal end of the sliding base 31, and the second supporting unit 32 is disposed at the rear proximal end of the sliding base 31.
In one embodiment of the present utility model, the slide base 31 is provided with a first support unit 32 and a second support unit 32. The second supporting unit 32 can share the pressure born by the first supporting unit 32, so that the structural stability is enhanced, the strength of the base 3 is improved, and the deformation of the first supporting unit 32 in the bending resistance testing process is prevented, and the testing result is influenced.
Specifically, the longitudinal pressurizing device 1 comprises a portal frame 11, a longitudinal jack 12 and a data acquisition device;
the portal frame 11 is erected in the middle of the guide rail frame 2, the fixed end of the longitudinal jack 12 is arranged on the portal frame 11, and the output end of the longitudinal jack 12 is arranged downwards;
the data acquisition device is arranged at the upper part of the longitudinal jack 12 or in the guide rail frame 2.
The portal frame 11 is used for fixing the longitudinal jack 12, so that the longitudinal jack 12 can be suspended above the tunnel segment 4, and the longitudinal jack 12 is used for providing vertical loading for the tunnel segment 4, so that the tunnel segment 4 is subjected to vertical pressure. In one embodiment of the utility model, the data acquisition device comprises a horizontal pressure sensor arranged at the top of a horizontal jack, a vertical pressure sensor arranged at the top of a vertical jack, a laser displacement sensor arranged in a middle groove of a rack base and a high-precision camera with scales.
Preferably, the seat plate 323 is provided with a plurality of reinforcing ribs 3231 at a side connected to the hinge bracket 322. By adopting the structure, the strength of the seat board 323 can be enhanced, and the seat board 323 is prevented from deforming in the bending resistance test process to influence the test effect. In one embodiment of the present utility model, the reinforcing ribs 3231 comprise two longitudinal reinforcing ribs and two transverse reinforcing ribs, and the two longitudinal reinforcing ribs and the two transverse reinforcing ribs combine to form a "well".
Optionally, first reinforcing plates 3226 are disposed on both front and rear sides of the first hinge post 3221 and the second hinge post 3222.
With the above structure, the strength of first hinge post 3221 and second hinge post 3222 may be enhanced, so that first hinge post 3221 and second hinge post 3222 may withstand the pressure during the bending resistance test.
Specifically, one end of the fixed plate 321 is connected with the sliding base 31, the other end of the fixed plate 321 is suspended, an included angle between a side wall of the sliding base 31 and the other end of the fixed plate 321 is provided with a plurality of second reinforcing plates 3111, and the second reinforcing plates 3111 are arranged at intervals.
With the above structure, the strength of the fixing plate 321 can be enhanced, so that the fixing plate 321 can bear the pressure in the bending resistance test process.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of this specification without the exercise of inventive faculty, and such equivalent modifications and alternatives are intended to be included within the scope of the utility model as defined in the claims.
Claims (8)
1. The bearing table for the tunnel segment bending resistance experiment is characterized by comprising a longitudinal pressurizing device, a guide rail frame and two bases, wherein the two bases are arranged on the guide rail frame, and the longitudinal pressurizing device is arranged in the middle of the guide rail frame;
the base comprises a sliding base and a first supporting unit; the first supporting unit comprises a fixed plate, a hinged frame, a seat plate, an angle adjusting rod and a stroke adjusting device; the sliding base is assembled on the guide rail frame in a sliding way, and the fixing plate is arranged at one end, far away from the guide rail frame, of the sliding base; the bottom of the hinged frame is fixed on the fixed plate, the top of the hinged frame is hinged with the upper end of the seat board, the lower end of the seat board is hinged with one end of the angle adjusting rod, the other end of the angle adjusting rod is connected with the stroke adjusting device, and the stroke adjusting device is used for adjusting the extending length of the angle adjusting rod.
2. The bearing table for tunnel segment bending resistance experiments according to claim 1, wherein the stroke adjusting device is an adjusting seat, and the adjusting seat is fixed on the sliding base; the adjusting seat is provided with a screw hole; the other end of the angle adjusting rod is provided with threads and is in threaded connection with the screw hole;
the lower end of the seat board is provided with a first hinging seat, a first hinging rod and a first fixing nut, and one end of the angle adjusting rod is provided with a through hole; one end of the first hinging rod is provided with a first limiting block, and the other end of the first hinging rod penetrates through the first hinging seat and the through hole and is assembled with the first fixing nut in a threaded mode.
3. The bearing table for tunnel segment bending resistance experiments according to claim 1, wherein the hinge frame comprises a first hinge post, a second hinge post, a hinge connecting rod and a second fixing nut;
the first hinge post is fixed to the front side of the stroke adjustment device, and the second hinge post is fixed to the rear side of the stroke adjustment device; the upper end of the seat plate is provided with a second hinging seat and a third hinging seat which are coaxially arranged, and the second hinging seat is arranged at the front side of the third hinging seat; one end of the hinged connecting rod is provided with a second limiting block, and the other end of the hinged connecting rod penetrates through the first hinged column, the second hinged seat, the second hinged column and the third hinged seat and is assembled with the second fixing nut in a threaded mode.
4. The plummer for tunnel segment bending resistance experiments according to claim 1, wherein the base further comprises a second supporting unit, the second supporting unit has the same structure as the first supporting unit, the first supporting unit is disposed at the front proximal end of the sliding base, and the second supporting unit is disposed at the rear proximal end of the sliding base.
5. The plummer for tunnel segment bending resistance experiments according to claim 1, wherein the longitudinal pressurizing device comprises a portal frame, a longitudinal jack and a data acquisition device;
the portal frame is erected in the middle of the guide rail frame, the fixed end of the longitudinal jack is arranged on the portal frame, and the output end of the longitudinal jack is arranged downwards;
the data acquisition device is arranged at the upper part of the longitudinal jack or in the guide rail frame.
6. The bearing table for tunnel segment bending test according to claim 1, wherein a plurality of reinforcing ribs are arranged on one side of the seat plate connected with the hinge frame.
7. A loading table for tunnel segment bending test according to claim 3, wherein the front and rear sides of the first hinge post and the second hinge post are respectively provided with a first reinforcing plate.
8. The plummer for tunnel segment bending resistance experiments according to claim 1, wherein one end of the fixed plate is connected with the sliding base, the other end of the fixed plate is suspended, a plurality of second reinforcing plates are arranged at an included angle between the side wall of the sliding base and the other end of the fixed plate, and the second reinforcing plates are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080749.6U CN219434556U (en) | 2023-01-12 | 2023-01-12 | Bearing table for tunnel segment bending resistance experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080749.6U CN219434556U (en) | 2023-01-12 | 2023-01-12 | Bearing table for tunnel segment bending resistance experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219434556U true CN219434556U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320080749.6U Active CN219434556U (en) | 2023-01-12 | 2023-01-12 | Bearing table for tunnel segment bending resistance experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219434556U (en) |
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2023
- 2023-01-12 CN CN202320080749.6U patent/CN219434556U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240726 Address after: No. 18, Qiangshi Road, Shishan Town, Nanhai District, Foshan, Guangdong 528225 Patentee after: China Railway 23rd Bureau Group Rail Transit Foshan Engineering Co.,Ltd. Country or region after: China Patentee after: CHINA RAILWAY 23RD BUREAU GROUP RAIL TRANSIT ENGINEERING Co.,Ltd. Address before: No. 18, Qiangshi Road, Shishan Town, Nanhai District, Foshan, Guangdong 528225 Patentee before: China Railway 23rd Bureau Group Rail Transit Foshan Engineering Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |