CN208187390U - Tunnel cross-section settlement monitoring device - Google Patents
Tunnel cross-section settlement monitoring device Download PDFInfo
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- CN208187390U CN208187390U CN201820447737.1U CN201820447737U CN208187390U CN 208187390 U CN208187390 U CN 208187390U CN 201820447737 U CN201820447737 U CN 201820447737U CN 208187390 U CN208187390 U CN 208187390U
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- Prior art keywords
- tube body
- tunnel
- section
- fiber grating
- liquid level
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Abstract
The utility model provides a kind of tunnel cross-section settlement monitoring device, comprising: fiber grating liquid level meter, fiber grating liquid level meter are connect with (FBG) demodulator；Tube body, fiber grating liquid level meter are arranged in tube body, and tube body disk is located on the section in tunnel；Multiple fixing pieces, tube body are connected by the inner wall in fixing piece and tunnel；One end of the pump housing, the pump housing and tube body is connected to be passed through liquid into tube body.The utility model solves the problems, such as that tunnel cross-section settlement monitoring in the prior art is inconvenient.
Description
Technical field
The utility model relates to Tunnel Engineering technical fields, in particular to a kind of tunnel cross-section settlement monitoring device.
Background technique
In constructing tunnel, generally existing tunnel under construction Section Settlement is difficult to the problem of monitoring.The sedimentation of constructing tunnel phase
Tunnel Landslide, reluctant safety accident after the life security and subsequent tunnel of construction personnel itself is open to traffic may be caused.Mesh
The preceding sedimentation for tunnel tunnel face to tunnel under construction section between two linings does not monitor sedimentation method well, main at present
Methods still use total station personal monitoring, however, the monitoring needs of total station manually monitor point by point, take time and effort,
And it is unable to real-time monitoring, meanwhile, monitoring accuracy is related with the operation of staff, causes its measurement error larger, and construct
This section of tunnel safety problem of phase is difficult to result in since tunnel under construction settlement monitoring is difficult, ask safely until comprehensive control
The problem of topic takes place frequently.
Utility model content
The main purpose of the utility model is to provide a kind of tunnel cross-section settlement monitoring devices, to solve in the prior art
Tunnel cross-section settlement monitoring inconvenience problem.
To achieve the goals above, the utility model provides a kind of tunnel cross-section settlement monitoring device, comprising: optical fiber light
Grid liquidometer, fiber grating liquid level meter are connect with (FBG) demodulator；Tube body, fiber grating liquid level meter are arranged in tube body, and tube body disk is set
On the inner wall of the section part in tunnel；Multiple fixing pieces, tube body are connected by the inner wall in fixing piece and tunnel；The pump housing, the pump housing with
One end of tube body is connected to be passed through liquid into tube body.
Further, tube body is inverted U shape structure along inner wall.
Further, at least one end court of tube body sets up.
Further, the first end of tube body upward and extends downward into bending behind the bottom of inner wall, then along the table of inner wall
Face is extended upwardly from the bottom portion to the top of inner wall, along the surface of inner wall extended at the top of inner wall behind bottom bending again after
And upwardly extend, the second end of tube body is set upward.
Further, tube body is multiple, and each section part is provided at least one tube body, and each tube body connects with the pump housing
It connects.
Further, fiber grating liquid level is calculated as multiple, at least one fiber grating liquid level meter is provided in each tube body,
When being provided with multiple fiber grating liquid level timing in tube body, fiber grating liquid level meter is arranged along the extending direction interval of tube body.
Further, it is connect after being connected between multiple fiber grating liquid level meters by optical cable with a (FBG) demodulator.
Further, tube body is bellows.
Using the technical solution of the utility model, it is connected with liquid in tube body and is provided with fiber grating liquid level meter, if tube body
Deformation occurs, manages intracorporal fluid pressure and also just changes, and fiber grating liquid level meter can experience the variation of fluid pressure,
And wavelength value is converted by the variation and is demodulated by (FBG) demodulator.Since tube body is the monitoring position for the section that disk is located at tunnel
On, the construction period in tunnel, when the monitoring position of the section in tunnel settles, tube body also can deformation occurs, to make
Intracorporal fiber grating liquid level meter must be managed and experience the variation of fluid pressure, and then obtain the sedimentation of the monitoring position of tunnel cross-section
Value.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the partial structure diagram of the tunnel cross-section settlement monitoring device of the utility model；And
Fig. 2 shows the optical cable layout diagrams of the tunnel cross-section settlement monitoring device in Fig. 1.
Wherein, the above drawings include the following reference numerals:
10, fiber grating liquid level meter；20, tube body；30, fixing piece；40, optical cable.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually
It is for direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Together
Sample, it for ease of understanding and describes, " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is simultaneously
It is not used in limitation the utility model.
In order to solve the problems, such as that tunnel cross-section settlement monitoring in the prior art is inconvenient, the utility model provides one kind
Tunnel cross-section settlement monitoring device.
A kind of tunnel cross-section settlement monitoring device as shown in Figure 1, including it is fiber grating liquid level meter 10, tube body 20, multiple
Fixing piece 30 and the pump housing, fiber grating liquid level meter 10 are connect with (FBG) demodulator；Fiber grating liquid level meter 10 is arranged in tube body 20, pipe
On the inner wall for the section part that 20 disk of body is located at tunnel；Tube body 20 is connect by fixing piece 30 with the inner wall in tunnel；The pump housing and tube body
20 one end is connected to be passed through liquid into tube body 20.
Liquid is connected in the tube body 20 of the present embodiment and is provided with fiber grating liquid level meter 10, if deformation occurs for tube body 20,
Fluid pressure in tube body 20 also just changes, and fiber grating liquid level meter 10 can experience the variation of fluid pressure, and will
The variation is converted into wavelength value and is demodulated by (FBG) demodulator.Since tube body 20 is on the monitoring position for the inner wall that disk is located at tunnel,
Construction period in tunnel, when the monitoring position of the inner wall in tunnel settles, tube body 20 also can deformation occurs so that
Fiber grating liquid level meter 10 in tube body 20 experiences the variation of fluid pressure, and then obtains the monitoring position at tunnel cross-section
Sedimentation value.
It should be noted that the section in the present embodiment refers to the vertical section in tunnel, and in the process of construction in tunnel, tunnel
Road is divided into multiple segments, is the section for needing to carry out settlement monitoring in the vertical section of the junction of each segment.
As shown in Figure 1, the tube body 20 of the present embodiment is inverted U shape structure along inner wall.Specifically, the prolonging in tunnel of tube body 20
The projection stretched on the cross section in direction is inverted U shape structure, so that the top and bottom of the inner wall in tunnel can be disconnected by tunnel
The monitoring of face settlement monitoring device.
Meanwhile the case where liquid in tube body 20 overflows in order to prevent, the both ends of tube body 20 are all towards setting up.
Specifically, the first end of tube body 20 is fixed on upward on the top in tunnel, and after extending downward into the bottom of inner wall
Bending is then extended upwardly from the bottom portion along the surface of inner wall to the top of inner wall, along the surface of inner wall from the top of inner wall
It extends to behind bottom that bending then upwardly extends again, is fixed on the second end of tube body 20 on the top in tunnel upward and also.It is logical
It crosses aforesaid way to be provided with tube body 20 at the top and bottom of tunnel inner wall, is enable to the sedimentation to section entirety
Situation is monitored.In practical winding, the length of tube body 20 can be increased according to the actual situation, to increase the inner wall monitored
Area, tube body 20 can carry out continuously coiling according to above-mentioned coiled fashion.
In the present embodiment, tube body 20 is multiple, and each section part is provided at least one tube body 20, and each tube body 20 is
It is connect with the pump housing.
Specifically, tunnel is divided into multiple segments, and disk is equipped with tube body 20 on the inner wall of the junction of each segment, works as section
When the length of section is longer, it can be between adjacent tube body 20 discontinuous, it is only necessary to each tube body 20 is connect with the pump housing,
The pump housing is enabled to be all 20 feed flows of tube body.Certainly, when the segment in tunnel is shorter, all tube bodies 20 can be connected to
An entirety is made, at this point, the pump housing, which only needs to be connected to the tube body 20 for being located at tunnel ends, to be supplied for all tube bodies 20
Liquid.
As shown in Fig. 2, in order to guarantee that tunnel cross-section settlement monitoring device can to each position of tunnel inner wall
Be monitored, fiber grating liquid level meter 10 be it is multiple, at least one fiber grating liquid level meter 10 is provided in each tube body 20, when
When being provided with multiple fiber grating liquid level meters 10 in tube body 20, fiber grating liquid level meter 10 is set along the extending direction interval of tube body 20
It sets.In the present embodiment, optical fiber is provided on the position of tube body 20 corresponding with the position that the needs of tunnel inner wall monitor
Raster liquid level meter 10, to guarantee that tunnel cross-section settlement monitoring device can carry out accurate measurements to tunnel cross-section.
(FBG) demodulator in the present embodiment only has one, and should after being connected between each fiber grating liquid level meter 10 by optical cable 40
(FBG) demodulator connection.Optical cable 40 is one and has worn all tube bodies 20, so that all fiber grating liquid level meters 10 are connected
Come, is then connect with (FBG) demodulator, the wavelength signals of (FBG) demodulator analytic solution tune fiber grating liquid level meter 10, to calculate tunnel phase
Answer the sedimentation value of section.The laying mode of optical cable 40 is as shown in Figure 2.
Preferably, tube body 20 is bellows, and the compressive property of bellows is preferable, is able to bear certain water pressure, simultaneously
Certain deformation can occur for bellows itself, so that when a part of the section part in tunnel settles, the phase of tube body 20
Answer pipeline section that can follow and certain deformation occur, and the other parts of tube body 20 and other fiber grating liquid level meters 10 not by
It influences, avoid the different parts of tube body 20 while occurring to settle and cause the problem of monitoring inaccuracy.
Fixing piece 30 in the present embodiment is buckle structure, and buckle structure is set in outside tube body 20, tube body 20 is consolidated
It is scheduled on the inner wall in tunnel.
The utility model additionally provides a kind of tunnel cross-section Monitoring method of the subsidence, using above-mentioned tunnel cross-section settlement monitoring
Device, tunnel cross-section Monitoring method of the subsidence include: on the inner wall for the section part that tunnel cross-section settlement monitoring device is mounted on tunnel；
The fiber grating liquid level meter 10 of tunnel cross-section settlement monitoring device is used to monitor the sedimentation value of the section in tunnel；By the sedimentation of section
Value h is compared with preset standard sedimentation value, to determine whether tunnel is safe.
Preferably, it after tunnel cross-section settlement monitoring device being fixed on the inner wall in tunnel, is settled and is supervised by tunnel cross-section
The pump housing for surveying device injects the liquid of permanent steady pressure in the tube body 20 of tunnel cross-section settlement monitoring device, so as to fill in tube body 20
Full liquid and bubble-free, to meet the needs of measurement.
When the Section Settlement in tunnel, the sedimentation value h of the section part settled and corresponding fiber grating liquid level meter 10
The relationship of the wavelength X detected are as follows:
Wherein, KpFor the liquid level of fiber grating liquid level meter 10 and the ratio of wavelength, KtFor the ratio of wavelength shift and temperature
Value, λ0For the initial wavelength of fiber grating liquid level meter 10, unit is rice, T0For λ0Temperature value when detection, unit are Kelvin K,
T is temperature value when λ is detected, and unit is Kelvin K, and ρ is the density of the liquid in tube body 20, unit kg/m2, g is gravity
Acceleration, unit m/s2。
Then the sedimentation value being calculated and preset standard sedimentation value are compared, when the sedimentation value h of section part is greater than
When preset standard sedimentation value, there are risks in tunnel；Or when the sedimentation value h of section part is less than or equal to preset standard sedimentation value,
Tunnel safety.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
1, solve the problems, such as that tunnel cross-section settlement monitoring in the prior art is inconvenient；
2, using fiber grating liquid level meter monitoring technology, the on-line real time monitoring settled to tunnel cross-section, peace may be implemented
Complete more time-efficient in real time, arrangement two that more can be scientific and reasonable serves as a contrast construction；
3, tunnel cross-section settlement monitoring device interference resistance is strong, corrosion-resistant, incudes sensitive, it is ensured that in monitoring process
Measurement accuracy is accurate.
Obviously, above-mentioned described embodiment is only the embodiment of the utility model a part, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The range of the utility model protection all should belong in the every other embodiment obtained.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of tunnel cross-section settlement monitoring device characterized by comprising
Fiber grating liquid level meter (10), the fiber grating liquid level meter (10) connect with (FBG) demodulator；
Tube body (20), in the tube body (20), tube body (20) disk is located at tunnel for fiber grating liquid level meter (10) setting
On the inner wall of the section part in road；
Multiple fixing pieces (30), the tube body (20) are connect by the fixing piece (30) with the inner wall in the tunnel；
The pump housing, the pump housing are connect to be passed through liquid in the tube body (20) with one end of the tube body (20).
2. tunnel cross-section settlement monitoring device according to claim 1, which is characterized in that the tube body (20) is along described interior
Wall is inverted U shape structure.
3. tunnel cross-section settlement monitoring device according to claim 1, which is characterized in that at least the one of the tube body (20)
End court sets up.
4. tunnel cross-section settlement monitoring device according to claim 2, which is characterized in that the first end of the tube body (20)
Upward and bending behind the bottom of the inner wall is extended downward into, then extended upwardly from the bottom portion along the surface of the inner wall to described
Behind the top of inner wall, extend to behind bottom that bending is then prolonged upwards again at the top of the inner wall along the surface of the inner wall
It stretches, the second end of the tube body (20) is set upward.
5. tunnel cross-section settlement monitoring device according to claim 1, which is characterized in that the tube body (20) be it is multiple,
Each section part is provided at least one described tube body (20), and each tube body (20) connect with the pump housing.
6. tunnel cross-section settlement monitoring device according to claim 5, which is characterized in that the fiber grating liquid level meter
(10) to be multiple, it is provided at least one described fiber grating liquid level meter (10) in each tube body (20), when the tube body
(20) when being provided with multiple fiber grating liquid level meter (10) in, the fiber grating liquid level meter (10) is along the tube body (20)
Extending direction interval setting.
7. tunnel cross-section settlement monitoring device according to claim 6, which is characterized in that multiple fiber grating liquid levels
It is connect after being connected between meter (10) by optical cable (40) with a (FBG) demodulator.
8. tunnel cross-section settlement monitoring device according to claim 1, which is characterized in that the tube body (20) is ripple
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447737.1U CN208187390U (en) | 2018-03-30 | 2018-03-30 | Tunnel cross-section settlement monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447737.1U CN208187390U (en) | 2018-03-30 | 2018-03-30 | Tunnel cross-section settlement monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208187390U true CN208187390U (en) | 2018-12-04 |
Family
ID=64435484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820447737.1U Expired - Fee Related CN208187390U (en) | 2018-03-30 | 2018-03-30 | Tunnel cross-section settlement monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208187390U (en) |
-
2018
- 2018-03-30 CN CN201820447737.1U patent/CN208187390U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 Termination date: 20210330 |