CN109931875A - A kind of buried type geotechnical engineering monitoring device - Google Patents
A kind of buried type geotechnical engineering monitoring device Download PDFInfo
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- CN109931875A CN109931875A CN201711356262.1A CN201711356262A CN109931875A CN 109931875 A CN109931875 A CN 109931875A CN 201711356262 A CN201711356262 A CN 201711356262A CN 109931875 A CN109931875 A CN 109931875A
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Abstract
The invention discloses a kind of buried type geotechnical engineering monitoring devices, test cell, processing unit and at least one pipeline, pipeline and external sealing completely cut off, it is provided at least one shaped form bracket in pipeline and is continuously laid in multiple first sides the A deformation tooth and multiple first sides B deformation tooth of opposite sides on the shaped form bracket, in the shaped form channel being laid staggeredly and formation is passed through for one or more first signal optical fibres between the head of the two between multiple first side A deformation teeth and multiple first sides B deformation tooth, inner wall of the pipe is fixed at least both ends on shaped form bracket, at least one end of pipeline and it is connected with a tubule, optical cable is laid in tubule, optical cable one end is connect with the first signal optical fibre in pipeline, the other end of the optical cable is connect with test cell, the test cell is connect with processing unit.The present invention is easy to be embedded in engineering structure, becomes the sensing element of effectively monitoring civil engineering structure stress variation.
Description
Technical field
The present invention relates to a kind of ring, specially a kind of monitoring element, in particular to a kind of buried type geotechnical engineering monitoring
Device.
Background technique
The service life of the Important Projects such as bridge, dam, subway, tunnel is decades-long or even upper a century, but
In long-time service, the erosion of environment, the fatigue effect of the aging of material and load effect, various dither effects and burst thing
The collective effect of the adverse factors such as part will lead to the damage accumulation of fabric structure and the decline of load-bearing capacity, so that influencing it makes
With the service life, catastrophic accident even occurs in extreme circumstances.Therefore, it is necessary to the structure to important building health into
Row monitoring guarantees that the civil engineering is under the conditions of safe handling.
Traditional civil engineering monitoring method has static strain testing Vibration identification method, acoustic-emission, ultrasonic tesint method, red
A variety of methods such as outer thermal imagery method, pulse radar method and x-ray method, but these methods it is difficult to the complete test of entire engineering, at
This height, based on qualitative test, and be not easy to realize the long term monitoring of real-time online, for the health status of civil engineering structure
It cannot completely be assessed in time, there is biggish limitation.
The appearance and development of optical fiber sensing technology provide a kind of new means for effective monitoring of civil engineering structure.
Fibre Optical Sensor have the characteristics that it is more preferable for basic sensing device with charge than tradition, such as by electromagnetic interference, easily building distribution,
Quasi-distributed sensor array can carry out remote monitoring and other advantages.Some bridges, dam have begun to be passed using optical-fiber type
Induction device carries out performance monitoring, at present mainly with fiber grating using in the majority, but also has disadvantage, mainly higher cost, monitoring
The quantity of point is on the low side and has been mounted on based on the surface of monitoring works, which has limited its popularization and use and to engineering structure
Complete monitoring.
Summary of the invention
The purpose of the present invention is to provide a kind of buried type geotechnical engineering monitoring devices.The configuration of the present invention is simple, design are closed
Reason, processing and fabricating is convenient, at low cost and usage mode is flexible, the service life is long, high sensitivity, is easy to be embedded in engineering structure, becomes
The effectively sensing element of monitoring civil engineering structure stress variation.
To achieve the above object, the technical solution adopted by the present invention is that: optical fiber type civil engineering structure stress monitoring element,
It is characterized by: test cell, processing unit and at least one pipeline in civil engineering structure, and the pipeline and outer
Portion's sealing isolation, at least one shaped form bracket is provided in pipeline and is continuously laid on the shaped form bracket with respect to two
Multiple first sides A deformation tooth of side and multiple first sides B deform tooth, and the multiple first side A deformation tooth and multiple first sides B become
It is in be laid staggeredly and formed between the head of the two the shaped form channel passed through for one or more first signal optical fibres between shape tooth,
First side A deformation tooth and the first side B deformation tooth correspondence are laid in the first signal optical fibre two sides, and at least both ends on shaped form bracket
It is fixed on inner wall of the pipe, at least one end of pipeline and is connected with a tubule, optical cable, and the optical cable are laid in the tubule
One end is connect with the first signal optical fibre in pipeline, and the other end of the optical cable is connect with test cell, the test cell with
Processing unit connection.
Above-mentioned buried type geotechnical engineering monitoring device, the shaped form bracket are shaped form shell, the multiple first A
Side deformation tooth and the corresponding inner wall for being laid in shaped form bracket of multiple first sides B deformation tooth.
Above-mentioned buried type geotechnical engineering monitoring device, structure or the pipeline external surface of the pipeline for corrugated tube shape
It is provided with screw thread or groove.
Above-mentioned buried type geotechnical engineering monitoring device, the shaped form bracket are spring, and the first side A deforms tooth and first
The side B deformation tooth is corresponding to be laid between adjacent two adjacent rings spring wire in the spring.
Detailed description of the invention
Fig. 1 is a schematic structural view of Embodiment 1 of the present invention
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of buried type geotechnical engineering monitoring device, test cell 5,7 and of processing unit
At least one pipeline 10 in civil engineering structure, and the pipeline 10 and external sealing completely cut off, and are arranged in pipeline 10
There is at least one shaped form bracket and is continuously laid in multiple first sides A deformation tooth 4- of opposite sides on the shaped form bracket
Is between 1 and the deformation of multiple first sides B tooth 4-2, the multiple first side A deformation tooth 4-1 and multiple first sides B deformation tooth 4-2
It is laid staggeredly and forms the shaped form channel passed through for one or more first signal optical fibres 33, the first side A between the head of the two
Deformation tooth 4-1 and the first side B deformation tooth 4-2 correspondence are laid in 33 two sides of the first signal optical fibre, and at least two on shaped form bracket
10 inner wall of pipeline is fixed at end, at least one end of pipeline 10 and is connected with a tubule 12, is laid with optical cable in the tubule 12
1, and 1 one end of the optical cable is connect with the first signal optical fibre 33 in pipeline 10, the other end and test cell 5 of the optical cable 1
Connection, the test cell 5 are connect with processing unit 7.
In the present embodiment, shaped form bracket is shaped form shell 19, multiple first side A deformation tooth 4-1 and multiple first sides B
Deformation tooth 4-2 correspondence is laid on the inner wall of shaped form bracket 19.Reinforcing bar 15 in pipeline 10 and concrete 16 passes through band 11
It is fixed together, when reinforcing bar 15 is bent or concrete 16 has crackle, the shape of pipeline 10 can also change, while shaped form
Bracket 19 is contacted with 10 inner wall of pipeline, leads to the also bending deformation of shaped form shell 19, to make to be laid in shaped form shell 19
The first side A deformation tooth 4-1 and the first side B deformation the distance between tooth 4-2 change, cause to be held on the first side A deformation tooth 4-1
And the first the two sides B deformation tooth 4-2 between the first signal optical fibre 33 bending curvature variation, make to be transmitted in the first signal optical fibre 33
Optical signal changed power, which is measured by 1 test cell 5 of optical cable and passes to processing unit 7, processing unit
7 calculate the bending state of shaped form shell 19, and extrapolate reinforcing bar 15 and be bent size or 16 crackle size of concrete, are
The health monitoring of civil engineering structure provides data basis.
It is that the structure of corrugated tube shape or 10 surface of pipeline have screw thread or groove that a kind of preferred way, which is pipeline 10, makes pipeline
10 can have bigger contact area with concrete 16, combine the two closer, to keep monitoring result more acurrate.
First signal optical fibre 33 is the optical fiber that outside is surrounded by multi-protective layer, and first signal optical fibre 33 is outside
It is surrounded by the optical fiber of multilayer fibers protective layer, such as tight tube fiber, carbon coated optical fiber, polyimide coated optical fiber；First letter
Number optical fiber 33 is also possible to plastic optical fiber, multi-core optical fiber, thin fiber or photonic crystal fiber；Or more first signal optical fibres
33 be clamped in side by side the first side A deformation tooth 4-1 and the first side B deformation tooth 4-2 between or more first signal optical fibres 33 pass through
Resin merges into signal optical fibre beam or signal optical fibre band.One layer of waterproof layer is coated with outside first signal optical fibre 33,
Such as waterproofing unction, hydrone can be further prevented to extend making for the first signal optical fibre 33 to the erosion of the first signal optical fibre 33
Use the service life.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of buried type geotechnical engineering monitoring device, it is characterised in that: test cell (5), processing unit (7) and be located at building
At least one pipeline (10) in engineering structure, and the pipeline (10) and external sealing completely cut off, and are provided in pipeline (10)
At least one shaped form bracket and multiple first sides the A deformation tooth (4- for being continuously laid in opposite sides on the shaped form bracket
1) and multiple first sides B deformation tooth (4-2), the multiple first side A deformation tooth (4-1) and multiple first sides B deform tooth (4-2)
Between in being laid staggeredly and form the shaped form channel passed through for one or more first signal optical fibres (33) between the head of the two,
First side A deformation tooth (4-1) and the first side B deformation tooth (4-2) correspondence are laid in the first signal optical fibre (33) two sides, and shaped form
Pipeline (10) inner wall is fixed at least both ends on bracket, at least one end of pipeline (10) and is connected with a tubule (12), described
It is laid with optical cable (1) in tubule (12), and the optical cable (1) one end is connect with the first signal optical fibre (33) in pipeline (10),
The other end of the optical cable (1) is connect with test cell (5), and the test cell (5) connect with processing unit (7).
2. buried type geotechnical engineering monitoring device according to claim 1, it is characterised in that: the shaped form bracket is song
Line style shell (19), the multiple first side A deformation tooth (4-1) and multiple first sides B deformation tooth (4-2) correspondence are laid in curve
The inner wall of type bracket (19).
3. optical-fiber type civil engineering stress monitoring element according to claim 2, it is characterised in that: one pipeline
(10) multiple shaped form brackets or in multiple pipelines (10) are connected on first signal optical fibre (33).
4. optical-fiber type civil engineering stress monitoring element according to claim 9, it is characterised in that: each shaped form bracket
Both ends are provided with light reflecting device (46), are provided with photoswitch (35) between the optical cable (1) and test cell (5).
5. buried type geotechnical engineering monitoring device according to claim 1, it is characterised in that: the pipeline (10) is ripple
The structure of tubulose or the pipeline (10) outer surface are provided with screw thread or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356262.1A CN109931875A (en) | 2017-12-16 | 2017-12-16 | A kind of buried type geotechnical engineering monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356262.1A CN109931875A (en) | 2017-12-16 | 2017-12-16 | A kind of buried type geotechnical engineering monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN109931875A true CN109931875A (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711356262.1A Pending CN109931875A (en) | 2017-12-16 | 2017-12-16 | A kind of buried type geotechnical engineering monitoring device |
Country Status (1)
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| CN (1) | CN109931875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308628A (en) * | 2019-11-28 | 2020-06-19 | 中国铁路设计集团有限公司 | Protection method for high-speed rail tunnel deformation joint penetrated by embedded sensing optical cable |
-
2017
- 2017-12-16 CN CN201711356262.1A patent/CN109931875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308628A (en) * | 2019-11-28 | 2020-06-19 | 中国铁路设计集团有限公司 | Protection method for high-speed rail tunnel deformation joint penetrated by embedded sensing optical cable |
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Application publication date: 20190625 |