CN109458982A - A kind of tunnel subsidence monitoring device and method - Google Patents
A kind of tunnel subsidence monitoring device and method Download PDFInfo
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- CN109458982A CN109458982A CN201811426170.0A CN201811426170A CN109458982A CN 109458982 A CN109458982 A CN 109458982A CN 201811426170 A CN201811426170 A CN 201811426170A CN 109458982 A CN109458982 A CN 109458982A
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- height
- water level
- pressure value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Present disclose provides a kind of tunnel subsidence monitoring device and methods.Wherein, a kind of tunnel subsidence monitoring device, comprising: several detectors are laid in respectively at reference point and default monitoring point；These detectors are joined end to end by connection water pipe and connectivity trachea, are connected between the detector and fluid reservoir of fluid reservoir by connection water pipe and connectivity trachea, and then constitute linker；Data acquisition module, including collector, memory and processor；The collector is configured as the pressure value of acquisition detector corresponding position detected, and is sent to processor；The processor is configured to converting height of water level information for pressure value, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and accumulative sedimentation information.
Description
Technical field
The disclosure belongs to tunnel structure deformation monitoring field more particularly to a kind of tunnel subsidence monitoring device and method.
Background technique
Only there is provided background technical informations relevant to the disclosure for the statement of this part, it is not necessary to so constitute first skill
Art.
The complicated conditions such as the engineering geology and hydrogeology in tunnel are changeable, design and construction of the existing tunnel by the period of building
The limitation of technical conditions, tunnel vault cracking often occurs in the tunnel built in early days, abutment wall cracks, vault is empty, lining cutting damages,
How the health problem in the tunnels such as Tunnel Water Leakage, freezing damage in tunnel, country rock large deformation carries out Gernral Check-up to tunnel and disaster is pre-
Anti- and control is just particularly important.
The deformation monitoring of tunnel structure is to understand and grasp tunnel structure variation and in time discovery disease and judge its safety
The necessary ways and means of situation.By the monitoring to tunnel main structure, monitoring data are collected, record renovation scheme, system
Ground arrangement, stockpile, grasp the existing deformation for building up Tunnel Engineering operation in time, constantly sum up experience and lessons, can be
Disease management provides reliable basis, can also use for reference for the design of correlation engineering from now on, construction, operation maintenance unit.
Summary of the invention
According to the one aspect of one or more other embodiments of the present disclosure, a kind of tunnel subsidence monitoring device, energy are provided
The period acquisition for enough realizing tunnel subsidence data, improves tunnel subsidence accuracy.
A kind of tunnel subsidence monitoring device that embodiment of the disclosure provides, comprising:
Several detectors are laid in respectively at reference point and default monitoring point；These detectors by connection water pipe and
Connectivity trachea joins end to end, and is connected between the detector and fluid reservoir of fluid reservoir by connection water pipe and connectivity trachea, into
And constitute linker；
Data acquisition module, including collector, memory and processor；The collector is configured as acquisition detector institute
The pressure value of the corresponding position of detection, and it is sent to processor；The processor is configured to converting water level for pressure value
Elevation information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and add up to sink
Information drops.
In one or more embodiments, the installation site of the fluid reservoir be higher than detector and connection water pipe be connected to gas
The height of pipe.
In one or more embodiments, to prestore detector initial value, acceleration of gravity, liquid in the memory close
Degree and customized collection period；Wherein, after detector is stable, at the beginning of the current level height of detector is set as detector
Initial value.
In one or more embodiments, the processor, is also configured to
After converting height of water level information for pressure value, height of water level information is filtered.
In one or more embodiments, in the processor, process that height of water level information is filtered
Are as follows:
Choose the pressure value corresponding height of water level information moment corresponding with height of water level of most freshly harvested preset group quantity
The influence degree of the height of water level of acquisition carries out convolutional calculation, obtains this filtered height of water level information.
In one or more embodiments, it is set with the data group number upper limit of storage pressure value in the memory, works as pressure
When the data group number of force value is more than the upper limit, the data before being covered according to acquisition time.
The disclosure additionally provides a kind of working method of tunnel subsidence monitoring device.
A kind of working method of tunnel subsidence monitoring device of the disclosure, comprising:
It sets the parameter of data acquisition module, including detector initial value, acceleration of gravity, fluid density and customized adopts
Collect the period；
It is laid in the pressure value of the detector acquisition corresponding position at reference point and default monitoring point；
Collector acquires the pressure value for the corresponding position that detector is detected according to customized collection period, and transmits
To processor；
Processor converts water level for pressure value according to the relationship of pressure, fluid density, acceleration of gravity and height of water level
Elevation information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and add up to sink
Information drops.
In one or more embodiments, after pressure value is converted height of water level information by processor, to height of water level
Information is filtered.
In one or more embodiments, process height of water level information being filtered are as follows:
Choose the pressure value corresponding height of water level information moment corresponding with height of water level of most freshly harvested preset group quantity
The influence degree of the height of water level of acquisition carries out convolutional calculation, obtains this filtered height of water level information.
In one or more embodiments, it is set with the data group number upper limit of storage pressure value in memory, works as pressure
When the data group number of value is more than the upper limit, the data before being covered according to acquisition time.
The beneficial effect of the disclosure is:
(1) the tunnel subsidence monitoring device of the disclosure acquires detector according to customized collection period using collector
The pressure value of the corresponding position detected, and it is sent to processor；Each data acquisition module can support multiple detectors to connect
Enter, the real-time monitoring in (such as: 1 kilometer) tunnel over long distances can be covered.
(2) disclosure is filtered height of water level information after converting height of water level information for pressure value,
It can effectively reduce random noise or the interference that aperiodic noise generates, can reduce tunnel vehicle, subway, high-speed rail, construction nearby
Deng the periodic vibration interference generated to tunnel.
(3) the tunnel subsidence monitoring device of the disclosure adapts to common pressure type hydrostatic level, has extensive adapt to
Property.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is a kind of tunnel subsidence monitoring device structural schematic diagram of the disclosure.
Fig. 2 is a kind of flow chart of work methods of tunnel subsidence monitoring device of the disclosure.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
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 disclosure.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, operation, device, component and/or their combination.
Fig. 1 is a kind of tunnel subsidence monitoring device structural schematic diagram of the disclosure.
As shown in Figure 1, a kind of tunnel subsidence monitoring device that embodiment of the disclosure provides, comprising: detector, fluid reservoir
And data acquisition module.
(1) detector and fluid reservoir
Several detectors are laid in respectively at reference point and default monitoring point；These detectors by connection water pipe and
Connectivity trachea joins end to end；
Wherein, fluid reservoir is provided with good fluidity, macromolecular liquid that is not volatile, being not easy water molecules.
Such as: anti-icing fluid is filled in fluid reservoir.
As shown in Figure 1, anti-icing fluid is added by the anti-icing fluid filler being arranged on fluid reservoir, and in the side of fluid reservoir
The tracheae being connected with fluid reservoir is set, which has the function of liquid level instruction, the liquid height in fluid reservoir forbid be more than
Tracheae.
After the completion of anti-icing fluid filling, the water pipe and tracheae of the last one detector are blocked.
It is connected between the detector and fluid reservoir of fluid reservoir by connection water pipe and connectivity trachea, and then constitutes connection
Device.
In specific implementation, pressure type hydrostatic level can be used to realize in detector.
Number, number order from 1 to 32 are set when every pressure type hydrostatic level factory.Detector lays mode point
For two kinds of reference point and monitoring point.Reference point number is set as 1, generallys use deep stake and fixes, and the pressure value of reference point is as ginseng
Examine operation of the value for monitoring point sedimentation value；Monitoring point number be set as 2 to 32, generally by monitoring point be fixed to tunnel ground or
Wall obtains the sedimentation value of current location after the pressure value progress operation of the pressure value and reference point of monitoring point.
Such as: detector clipping room is away from being 15-30 meters, each most 32 detectors of carry of data acquisition module, this tunnel
Road settlement monitoring device can cover 1 kilometer of tunnel of installation.
(2) data acquisition module
Data acquisition module includes collector, memory and processor；The collector is configured as acquisition detector institute
The pressure value of the corresponding position of detection, and it is sent to processor；The processor is configured to converting water level for pressure value
Elevation information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and add up to sink
Information drops.
Specifically, it is communicated between data acquisition module and detector using RS485.
In specific implementation, detector initial value, acceleration of gravity, fluid density are prestored in the memory and are made by oneself
Adopted collection period；Wherein, after detector is stable, the current level height of detector is set as detector initial value.
Such as: collection period defines the communication monitoring time of data acquisition module and detector, i.e. data acquisition module
From the time interval of detector acquisition pressure value.Collection period is set in data acquisition module, as unit of minute；Such as it can
It is primary with setting acquisition in 3 minutes.
Detector initial value, the calculating for detector sedimentation value.A kind of tunnel subsidence monitoring device, which is laid, completes and transports
After row is stablized, the height of water level of Current detector is set as detector initial value.Detector initial value is in data acquisition module
Middle setting, in millimeters；
Acceleration of gravity, for pressure value conversion height of water level.The acceleration of gravity of districts and cities where taking tunnel；
Fluid density, the density for filled liquid in pressure value conversion height of water level, that is, fluid reservoir.Wherein, it stores up
The density of filled liquid in flow container can be calculated with density=mass/volume formula.
Wherein, collected pressure value is converted into height of water level by data acquisition module, according to formula:
Height of water level=pressure/(density * acceleration of gravity).
Specifically, the processor, is also configured to
After converting height of water level information for pressure value, height of water level information is filtered.
Wherein, process height of water level information being filtered are as follows:
Choose the pressure value corresponding height of water level information moment corresponding with height of water level of most freshly harvested preset group quantity
The influence degree of the height of water level of acquisition carries out convolutional calculation, obtains this filtered height of water level information.
In one or more embodiments, be set in the memory storage pressure value the data group number upper limit (such as:
20 groups), the data when the data group number of pressure value is more than the upper limit, before being covered according to acquisition time.
It takes the data of most freshly harvested 20 groups of pressure values and is converted into height value, substitute into convolutional calculation formula and calculated
Afterwards, as this filtered height of water level.Such as acquire 20 groups of data deficiencies, insufficient section with most freshly harvested one group of data into
Row filling.
It is calculated according to following equation:
Wherein, i indicates that times of collection, * indicate convolution.X (i) indicates that the collected height of water level of i-th, h (n-i) indicate
The influence degree for the height of water level that the collected height of water level of i-th acquires the n moment.
Such as:
H (n)=[0.02,0.02,0.02,0.02,0.02,0.04,0.04,0.04,0.04,0.04,0.06,0 .06,
0.06,0.06,0.06,0.08,0.08,0.08,0.08,0.08]。
By verifying, convolutional calculation is carried out using above 20 groups of h (n) data, can reflect that faster tunnel really settles,
Realize real-time monitoring；The interference that the preferable filtering environmental factor of energy generates again, reduces wrong report.
Instantaneous deformation is calculated using filtered data, accumulative deformation depends on this measured value of reference point and monitoring point
And initial value.By taking reference point 1 and monitoring point 2 as an example: No. 1 initial value A1 of reference point, No. 1 this measured value A2 of reference point；
The initial value B1 of monitoring point 2, this measured value B2 of monitoring point 2；Reference point changing value X1=A2-A1, monitoring point changing value Y1
=B2-B1；The sedimentation value Z1=Y1-X1 of monitoring point 2.
As shown in Fig. 2, a kind of working method of tunnel subsidence monitoring device of the disclosure, comprising:
(1) it sets the parameter of data acquisition module, including detector initial value, acceleration of gravity, fluid density and makes by oneself
Adopted collection period；
(2) it is laid in the pressure value of the detector acquisition corresponding position at reference point and default monitoring point；
(3) collector acquires the pressure value for the corresponding position that detector is detected according to customized collection period, and
It is sent to processor；
(4) processor converts pressure value to according to the relationship of pressure, fluid density, acceleration of gravity and height of water level
Height of water level information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and tire out
Meter sedimentation information.
Specifically, after pressure value is converted height of water level information by processor, place is filtered to height of water level information
Reason.
The process that height of water level information is filtered are as follows:
Choose the pressure value corresponding height of water level information moment corresponding with height of water level of most freshly harvested preset group quantity
The influence degree of the height of water level of acquisition carries out convolutional calculation, obtains this filtered height of water level information.
Wherein, it is set with the data group number upper limit of storage pressure value in memory, when the data group number of pressure value is more than
The data when upper limit, before being covered according to acquisition time.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure
The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.
Claims (10)
1. a kind of tunnel subsidence monitoring device characterized by comprising
Several detectors are laid in respectively at reference point and default monitoring point；These detectors by connection water pipe be connected to
Tracheae joins end to end, and is connected between the detector and fluid reservoir of fluid reservoir by connection water pipe and connectivity trachea, and then structure
At linker；
Data acquisition module, including collector, memory and processor；The collector is configured as acquisition detector and is detected
Corresponding position pressure value, and be sent to processor；The processor is configured to converting height of water level for pressure value
Information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and accumulative sedimentation letter
Breath.
2. a kind of tunnel subsidence monitoring device as described in claim 1, which is characterized in that the installation site of the fluid reservoir is high
In the height of detector and connection water pipe and connectivity trachea.
3. a kind of tunnel subsidence monitoring device as described in claim 1, which is characterized in that prestore detection in the memory
Device initial value, acceleration of gravity, fluid density and customized collection period；Wherein, after detector is stable, by detector
Current level height is set as detector initial value.
4. a kind of tunnel subsidence monitoring device as described in claim 1, which is characterized in that the processor is also configured to
After converting height of water level information for pressure value, height of water level information is filtered.
5. a kind of tunnel subsidence monitoring device as claimed in claim 4, which is characterized in that in the processor, to water level
The process that elevation information is filtered are as follows:
Choose the corresponding height of water level information of the pressure value moment acquisition corresponding with height of water level of most freshly harvested preset group quantity
Height of water level influence degree carry out convolutional calculation, obtain this filtered height of water level information.
6. a kind of tunnel subsidence monitoring device as described in claim 1, which is characterized in that be set with storage in the memory
The data group number upper limit of pressure value, the data when the data group number of pressure value is more than the upper limit, before being covered according to acquisition time.
7. a kind of working method of such as tunnel subsidence monitoring device of any of claims 1-6, which is characterized in that packet
It includes:
Set the parameter of data acquisition module, including detector initial value, acceleration of gravity, fluid density and customized acquisition week
Phase；
It is laid in the pressure value of the detector acquisition corresponding position at reference point and default monitoring point；
Collector acquires the pressure value for the corresponding position that detector is detected according to customized collection period, and is sent to place
Manage device；
Processor converts height of water level for pressure value according to the relationship of pressure, fluid density, acceleration of gravity and height of water level
Information, and then height of water level at height of water level at monitoring point and reference point is made into difference to calculate immediate settlement and accumulative sedimentation letter
Breath.
8. a kind of working method of tunnel subsidence monitoring device as claimed in claim 7, which is characterized in that processor is by pressure
Value is converted into after height of water level information, is filtered to height of water level information.
9. a kind of working method of tunnel subsidence monitoring device as claimed in claim 8, which is characterized in that believe height of water level
Cease the process being filtered are as follows:
Choose the corresponding height of water level information of the pressure value moment acquisition corresponding with height of water level of most freshly harvested preset group quantity
Height of water level influence degree carry out convolutional calculation, obtain this filtered height of water level information.
10. a kind of working method of tunnel subsidence monitoring device as claimed in claim 7, which is characterized in that in memory
It is set with the data group number upper limit of storage pressure value, when the data group number of pressure value is more than the upper limit, is covered according to acquisition time
Data before.
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Cited By (1)
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| CN110160490A (en) * | 2019-05-29 | 2019-08-23 | 武汉铁路职业技术学院 | Soft ground settlement monitoring device and method |
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