CN221802865U - Shield tunnel segment circumferential deformation monitoring and early warning device - Google Patents
Shield tunnel segment circumferential deformation monitoring and early warning device Download PDFInfo
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- CN221802865U CN221802865U CN202420446945.5U CN202420446945U CN221802865U CN 221802865 U CN221802865 U CN 221802865U CN 202420446945 U CN202420446945 U CN 202420446945U CN 221802865 U CN221802865 U CN 221802865U
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- monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 13
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses a shield tunnel segment circumferential deformation monitoring and early warning device, and belongs to the technical field of tunnel monitoring; the pipe piece comprises mounting frames symmetrically arranged at two sides of a pipe piece circumferential joint; the mounting bracket includes: an arc plate attached to the inner wall of the duct piece and a flat plate integrally arranged with the arc plate; the flat plates of the two opposite installation racks are correspondingly arranged in parallel; be provided with between the flat board of two relative mounting brackets: and a sensor for monitoring deformation displacement. According to the utility model, the mounting frames are arranged on the pipe pieces at two sides of the joint, the displacement and deformation among the pipe pieces are reacted in time, and the measurement and the early warning are performed; the sensors are arranged at multiple positions and multiple points, so that the reliability of data and the sensitivity of monitoring are fully ensured.
Description
Technical Field
The utility model relates to the technical field of tunnel monitoring, in particular to a shield tunnel segment circumferential deformation monitoring and early warning device.
Background
The shield tunnel segment can deform in the operation process; in order to ensure the safety of the tunnel, the deformation of the tunnel segment needs to be monitored, and early warning is carried out when the deformation reaches a threshold value. In the prior art, an optical fiber is arranged on the inner wall of a tunnel segment; when the pipe piece is deformed or displaced, the deformation of the sensing optical fiber can reflect the deformation condition of the pipe piece.
For example, patent application number "CN201110287947.1" discloses a tunnel convergence deformation distributed optical fiber monitoring method and system; arranging sensing optical fibers on the surface of a substrate sheet with the same curved surface shape as the inner side of a concrete pipe sheet of a shield tunnel to form a distributed optical fiber convergence deformation sensor, respectively fixing two ends of the sensor on the inner side of the concrete pipe sheet, wherein the sensing optical fibers are provided with two parallel paths, and one path is a tight sleeve optical fiber for measuring the strain along the radial direction of the sensor; the sensing optical fiber is arranged on the surface of the sheet sensor, and the measurement of the convergence value of the tunnel section is carried out by calibrating the correlation between the convergence value of the gauge length of the sensor and the strain variation of the sensing optical fiber and converting the correlation into the convergence state variation information of the tunnel section by using a Brillouin optical time domain distributed optical fiber sensing (BOTDA) method.
The technology can realize deformation monitoring and early warning of tunnel segments; the method is mainly used for monitoring the axial deformation of the tunnel segment. However, when monitoring the circumferential deformation of the tunnel segment, the distribution form is not practical due to the different and more complex deformation directions of the segment. Meanwhile, the more circumferential deformation direction angles of the tunnel duct piece are considered, the deformation of a plurality of states is needed to be considered, and therefore detection and early warning effects are guaranteed.
Disclosure of utility model
The utility model aims to solve the problems in the prior art, and provides a shield tunnel segment circumferential deformation monitoring and early warning device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a shield tunnel section of jurisdiction hoop deformation monitoring early warning device, includes the mounting bracket of symmetry setting in section of jurisdiction hoop seam both sides;
the two mounting frames are respectively arranged on one duct piece;
The mounting bracket includes: an arc plate attached to the inner wall of the duct piece and a flat plate integrally arranged with the arc plate;
the flat plates of the two opposite installation racks are correspondingly arranged in parallel;
Be provided with between the flat board of two relative mounting brackets: and a sensor for monitoring deformation displacement.
In some embodiments, the sensors are arranged in parallel with no less than two.
In some embodiments, the flat plate is provided with an extension plate perpendicular to the flat plate;
The outer side faces of the extension plates of the two opposite installation racks are level, and a space is reserved between the opposite faces of the two extension plates;
A sensor is arranged between the two extension plates.
In some embodiments, the sensor is a tension sensor and/or a fiber optic sensor.
In some embodiments, the extension plate is provided with a mounting seat thereon.
In some embodiments, the extension panel extends from one side of the segment seam to the other side;
the end part of the extension plate is provided with a pressure sensor propped against the inner wall of the duct piece.
In some embodiments, the mounting frame is further provided with triangular rib plates for connecting the arc plates and the flat plates.
In some embodiments, the triangular rib is symmetrically arranged with two.
In some embodiments, the arc plate is connected to the tube sheet by at least two fixation points.
In some embodiments, the arc plates are provided with screw holes in triangular distribution.
Compared with the prior art, the utility model provides the shield tunnel segment circumferential deformation monitoring and early warning device, which has the following beneficial effects.
1. According to the utility model, two mounting frames are in a group and are respectively arranged on the duct pieces at two sides of a joint, so that the displacement and deformation between the two duct pieces are reacted in time, and the displacement and deformation are measured and calculated and early warned; the arc plate attached to the inner wall of the duct piece is firmly arranged on the inner side of the duct piece and is connected with the duct piece through at least two fixed points, so that the stability and the reliability are fully ensured; the sensors are arranged at multiple positions and multiple points, so that the reliability of data and the sensitivity of monitoring are fully ensured.
2. According to the utility model, the plurality of sensors are arranged, so that the sensing sensitivity is improved, the data acquisition points are increased, and the accuracy of data is improved; sensors for monitoring deformation displacement are arranged between the flat plates and the extension plates, and the change of measured data is monitored and early warned; the deformation in multiple directions is measured, so that the reliability of deformation monitoring is further enhanced; and the pressure sensor which is abutted against the duct piece is matched with the sensors at the two positions, so that the monitoring reliability is further enhanced.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows; and will be apparent to those skilled in the art in part based upon a review of the following; or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic view of the present utility model in use.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic structural view of the present utility model.
Fig. 4 is a schematic structural view of the present utility model.
Fig. 5 is a front view of the present utility model.
Fig. 6 is a schematic structural view of the mounting frame.
In the figure:
1. A mounting frame; 11. an arc plate; 12. a flat plate; 13. triangular rib plates; 2. a sensor; 3. an extension plate; 31. a mounting base; 4. a pressure sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-6, a shield tunnel segment circumferential deformation monitoring and early warning device comprises mounting frames 1 symmetrically arranged at two sides of a segment circumferential seam; the two mounting frames 1 are a group and are respectively arranged on the duct pieces on two sides of the joint so as to timely react to the displacement and deformation between the two duct pieces, calculate and early warn.
In some embodiments, the mounting 1 comprises: an arc plate 11 attached to the inner wall of the segment, and a flat plate 12 integrally provided with the arc plate 11. The arc plate 11 attached by the shape is firmly arranged on the inner side of the duct piece, so that the arc plate and the duct piece are integrated.
Preferably, the arc plate 11 is connected with the duct piece through at least two fixed points so as to fully ensure stability and reliability; as shown in the figure, three screw holes are formed in the arc plate 11 in a triangular distribution and are used for penetrating through fixing pieces (such as screws) to be connected with the duct piece.
It should be noted that the flat plates 12 of the two opposite mounting frames 1 are correspondingly arranged in parallel; as shown in fig. 2, the opposite faces of the two plates 12 are parallel.
Meanwhile, between the flat plates 12 of the opposite two mounts 1, there are provided: a sensor 2 for monitoring deformation displacement; the sensor 2 measures the data change, so that monitoring and early warning are performed.
It can be understood that the two mounting frames 1 respectively displace with one duct piece; as shown in fig. 2, after the relative change of the two segments, the distance between the two mounting frames 1 changes, the data of the sensor 2 changes, and the early warning is triggered after the threshold value is reached.
Further, the sensor 2 is provided with not less than two in parallel.
As shown in fig. 4, the arrangement of a plurality of sensors 2 between two flat plates 12 can further improve the perceived sensitivity; meanwhile, the data acquisition points are increased, and the accuracy of the data can be improved.
The sensor 2 is a tension sensor and/or an optical fiber sensor.
After the displacement of the tension sensor changes, the deformation is calculated according to the change of the tension value; the optical fiber sensor performs measurement and calculation according to the strain quantity; the measurement and calculation modes of the two sensors are both in the prior art, and are matched with corresponding control and calculation terminals, and no redundant description is made here.
In some embodiments, the flat plate 12 is provided with an extension plate 3 perpendicular thereto.
Wherein, the outer side faces of the extension plates 3 opposite to the two mounting frames 1 are flush, and a space is reserved between the opposite faces of the two extension plates 3; a sensor 2 is arranged between the two extension plates 3.
The deformation in the other direction is measured by the sensor 2 between the two extension plates 3; and cooperates with the sensor 2 between the plates 12 to further enhance the reliability of deformation monitoring.
As shown in fig. 3, a space is reserved between the opposite faces of the two extension plates 3; the measuring directions of the two groups of sensors 2 are perpendicular.
Preferably, the extension plate 3 is provided with a mounting seat 31 to facilitate the mounting of the sensor 2.
In some embodiments, the extension panel 3 extends from one side of the segment seam to the other; the end of the extension plate 3 is provided with a pressure sensor 4 which is propped against the inner wall of the duct piece.
It should be noted that the pressure sensor 4 on the mounting frame 1 arranged on one duct piece is abutted against the other duct piece; when the two segments are displaced relatively, the pressure sensor 4 senses data change; in cooperation with the sensor 2 in the two positions, the reliability of monitoring is further enhanced.
In some embodiments, triangular rib plates 13 connecting the arc plates 11 and the flat plates 12 are also arranged on the mounting frame 1.
Preferably, two triangular ribs 13 are symmetrically arranged.
As shown in the accompanying drawings; the stability between the arc plate 11 and the flat plate 12 is enhanced by the arrangement of the two triangular rib plates 13, so that the arc plate has higher strength; no deformation occurs between the arc plate 11 and the flat plate 12.
When the pipe piece circumferential seam fixing device is used, the mounting frame 1 is fixed at two sides of the pipe piece circumferential seam through fixing pieces such as screws; as shown in fig. 1, a plurality of mounting frames 1 are provided according to the splicing form of the duct pieces; then, installing and calibrating the sensor 2 and the pressure sensor 4 on the installation frame 1, and connecting the sensor 2 and the pressure sensor 4 to a control end in a communication way; in the monitoring process, two groups of sensors 2 in different directions are matched with pressure sensors 4 which are abutted against the duct piece, data are measured, calculated, and monitoring and early warning are carried out according to comprehensive values.
In the utility model, two mounting frames 1 are a group and are respectively arranged on the duct pieces at two sides of a joint, and the displacement and deformation between the two duct pieces are reacted in time, calculated and early-warned; the arc plate 11 attached to the inner wall of the duct piece is firmly arranged on the inner side of the duct piece and is connected with the duct piece through at least two fixed points, so that the stability and the reliability are fully ensured; the sensors are arranged at multiple positions and multiple points, so that the reliability of data and the sensitivity of monitoring are fully ensured; a plurality of sensors 2 are arranged, so that the perception sensitivity is improved, the data acquisition points are increased, and the accuracy of data is improved; a sensor 2 for monitoring deformation displacement is arranged between the flat plates 12 and between the extension plates 3, and the change of measured data is monitored and early warned; the deformation in multiple directions is measured, so that the reliability of deformation monitoring is further enhanced; the pressure sensor 4 which is abutted against the duct piece is matched with the sensors 2 at the two positions, so that the monitoring reliability is further enhanced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. The shield tunnel segment circumferential deformation monitoring and early warning device is characterized by comprising mounting frames (1) symmetrically arranged at two sides of a segment circumferential seam;
The mounting rack (1) comprises: an arc plate (11) attached to the inner wall of the duct piece, and a flat plate (12) integrally provided with the arc plate (11);
The flat plates (12) of the two opposite installation racks (1) are correspondingly arranged in parallel;
The flat plates (12) of the two opposite installation frames (1) are provided with: a sensor (2) for monitoring deformation displacement.
2. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 1, wherein at least two sensors (2) are arranged in parallel.
3. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 1, wherein the flat plate (12) is provided with an extension plate (3) perpendicular to the flat plate;
the outer side faces of the extension plates (3) opposite to the two mounting frames (1) are flush, and a space is reserved between the opposite faces of the two extension plates (3);
a sensor (2) is arranged between the two extension plates (3).
4. The shield tunnel segment circumferential deformation monitoring and early warning device according to any one of claims 1 or 3, wherein the sensor (2) is a tension sensor and/or an optical fiber sensor.
5. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 3, wherein the extending plate (3) is provided with a mounting seat (31).
6. A shield tunnel segment circumferential deformation monitoring and early warning device according to claim 3, characterized in that the extension plate (3) extends from one side of the segment joint to the other side;
the end part of the extension plate (3) is provided with a pressure sensor (4) propped against the inner wall of the duct piece.
7. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 1 is characterized in that the mounting frame (1) is further provided with triangular rib plates (13) connected with the arc plates (11) and the flat plates (12).
8. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 7, wherein two triangular rib plates (13) are symmetrically arranged.
9. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 1, wherein the arc plate (11) is connected with the segment through at least two fixed points.
10. The shield tunnel segment circumferential deformation monitoring and early warning device according to claim 9, wherein screw holes are formed in the arc plate (11) in triangular distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420446945.5U CN221802865U (en) | 2024-03-08 | 2024-03-08 | Shield tunnel segment circumferential deformation monitoring and early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420446945.5U CN221802865U (en) | 2024-03-08 | 2024-03-08 | Shield tunnel segment circumferential deformation monitoring and early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221802865U true CN221802865U (en) | 2024-10-01 |
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ID=92872792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420446945.5U Active CN221802865U (en) | 2024-03-08 | 2024-03-08 | Shield tunnel segment circumferential deformation monitoring and early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221802865U (en) |
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- 2024-03-08 CN CN202420446945.5U patent/CN221802865U/en active Active
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