CN207488507U - Vertical strain discharge observation device based on seismic monitoring - Google Patents
Vertical strain discharge observation device based on seismic monitoring Download PDFInfo
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- CN207488507U CN207488507U CN201721655269.9U CN201721655269U CN207488507U CN 207488507 U CN207488507 U CN 207488507U CN 201721655269 U CN201721655269 U CN 201721655269U CN 207488507 U CN207488507 U CN 207488507U
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- vertical strain
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Abstract
A kind of vertical strain discharge observation device based on seismic monitoring provided by the utility model, including baseline, micro-displacement energy converter, zeroing device, pedestal and data collector；Baseline gos deep into inside peephole setting perpendicular to ground, and device buries pipe by stainless steel and is embedded in peephole bottom, and stainless steel is buried pipe by expanding cement couples fixation with buried via hole hole wall；Pedestal is parallel to the ground to be arranged on device, is connect at the top of baseline with pedestal, and pedestal is arranged in the plane on peephole top, and setting zeroing device on pedestal, micro-displacement energy converter is arranged on zeroing device, and micro-displacement energy converter is connect with data collector.The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, the bottom of device is fixed by expanding cement, reduce influence of the temperature to the coupling stability of different coefficient of expansions, by device obtain vertically to strain measurement data, provide fundamental analysis data for Earthquake Prediction Research and geodynamic study.
Description
Technical field
Vertical strain discharge observation device the utility model is related to earthquake monitoring field more particularly to based on seismic monitoring.
Background technology
At present the strain instrument in China mainly have cavity strain measure earth's crust rock mass point-to-point transmission horizontal distance opposite variation,
Volume borehole strain meter measurement stratum internal stress-strain regime variation, component strain stratum inner horizontal ess-strain.This
A little instruments are without vertical discharge observation.After vertical strain instrument after a period of time is studied from the 1980s by China, nearly more than 20 years
Come vertical strain field always nobody be related to.Vertical strain instrument can obtain vertically to strain measurement data, strain is solid
Body tide is promoted from plane strain observation to three dimensions strain observation, so as to which the plane strain tensor matrix-expand of certain point be arrived
Three dimensions strain tensor matrix.The acquisition of vertical strain amount will provide basis for Earthquake Prediction Research and geodynamic study
Analysis of data.
China started vertical strain observation in 1986 and is ground in two stations in Jiangsu and Hubei are mounted with than cooperation
The ORBES-84 type quartz pantographs of system, to the ORBES-84 types vertical telescopic instrument nineties in last century there are no it is subsequent research and
Report.
ORBES-84 type quartz pantographs are always about 3-4m, and instrument tip is embedded in 0.4 at the top of cave with super indium steel pipe
In the embedded hole of~0.8m depths, the method that is combined using epoxy resin with mechanical riveted is securely embedded in super indium steel pipe
In hole, as the fixing end of instrument.Instrument fixing end is socketed with quartz ampoule baseline using nylon and metal snare, ensures each quartz
End surfaces are tightly connected, and vertically and ground.The apparatus subject of vertical telescopic instrument is by baseline, magnetic displacement sensor system, capacitance
The part such as transducer system, calibration system and instrument base forms.
It can analyze and obtain from the vertical telescopic instrument development of ORBES-84 types and Preliminary experiment results, the instrument job insecurity
There is following reason：1st, the vertical strain fixing end and measurement end are separately mounted to the top and bottom in cave, hole body cavity
Effect is affected to what the vertical strain of this mounting means measured；2nd, the coupled modes of fixing end are asphalt mixtures modified by epoxy resin at the top of cavern
Fat and mechanical rivet, temperature are larger to the various material coupling stability influence of the different coefficients of expansion；3rd, fixing end and quartzy base
Line is socketed using nylon and metal ferrules, although this mode short time inner face is completely embedded, over time
Since the effects such as gravity, temperature can influence the being completely embedded property of two kinds of materials；4th, the sensor levels at the end of the eighties are relatively backward,
Sensor performance is poor, job insecurity.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of vertical strain discharge observation device based on seismic monitoring,
The bottom of device is fixed by expanding cement, is reduced influence of the temperature to the coupling stability of different coefficient of expansions, is passed through dress
Put obtain vertically to strain measurement data, by strain tide from plane strain observation promoted to three dimensions strain see
It surveys, thus by the plane strain tensor matrix-expand of certain point to three dimensions strain tensor matrix.The acquisition of vertical strain amount
Fundamental analysis data will be provided for Earthquake Prediction Research and geodynamic study.
To solve the above-mentioned problems, the utility model provides a kind of vertical strain discharge observation device based on seismic monitoring,
Including baseline, micro-displacement energy converter, zeroing device, pedestal and data collector；
The baseline gos deep into inside peephole setting perpendicular to ground, and described device is buried pipe by stainless steel and buried
In peephole bottom, the stainless steel is buried by pipe by expanding cement and couples fixation with the hole wall of the peephole；
The pedestal setting parallel to the ground on such devices, is connect, the bottom at the top of the baseline with the pedestal
Seat is arranged in the plane on peephole top, and setting zeroing device, the micro-displacement energy converter are arranged on the tune on the pedestal
On zero device, the micro-displacement energy converter is connect with the data collector.
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and technical solution is：Including
Baseline, micro-displacement energy converter, zeroing device, pedestal and data collector；The baseline gos deep into perpendicular to ground inside peephole
Setting, described device bury pipe by stainless steel and are embedded in peephole bottom, and the stainless steel is buried pipe by expanding cement
Fixation is coupled with the hole wall of the peephole；Pedestal setting parallel to the ground on such devices, at the top of the baseline with
The pedestal connection, the pedestal are arranged in the plane on peephole top, setting zeroing device, the micro-displacement on the pedestal
Energy converter is arranged on the zeroing device, and the micro-displacement energy converter is connect with the data collector.
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and the bottom of device passes through expansion
Cement is fixed, and reduces influence of the temperature to the coupling stability of different coefficient of expansions, by device acquirement vertically to the earth's crust
Strain observation data promotes strain tide to three dimensions strain observation from plane strain observation, thus by certain point
Plane strain tensor matrix-expand is to three dimensions strain tensor matrix.The acquisition of vertical strain amount will be Earthquake Prediction Research and
Geodynamic study provides fundamental analysis data.
Further, the pedestal is stretched by fixed sensor iron core at the top of the baseline, fixes and connect with the pedestal
It connects, and is arranged concentrically at the top of the baseline with the micro-displacement energy converter.
Further, the baseline is carbon fiber pipe.
Further, it is provided with setpoint distance between the hole wall of the baseline and the peephole.
Further, the micro-displacement energy converter is differential transformer displacement sensor.
Further, the pedestal for can up and down adjustment pedestal.
Further, the pedestal includes at least one leveling footing, and at least one leveling footing is arranged on described
The bottom of pedestal.
Further, the data collector includes alterating and direct current source interface and transducer interface, the micro-displacement transducing
Device is connect by the transducer interface with the data collector.
Further, the data collector further includes network interface, and the data collector passes through the network interface
It is connect with exterior terminal.
Further, the material of the pedestal is stainless steel.
Compared with prior art, the beneficial effects of the utility model are：
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and the bottom of device passes through expansion
Cement is fixed, and reduces influence of the temperature to the coupling stability of different coefficient of expansions, by device acquirement vertically to the earth's crust
Strain observation data promotes strain tide to three dimensions strain observation from plane strain observation, thus by certain point
Plane strain tensor matrix-expand is to three dimensions strain tensor matrix.The acquisition of vertical strain amount will be Earthquake Prediction Research and
Geodynamic study provides fundamental analysis data.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.
Fig. 1 shows a kind of vertical strain discharge observation device based on seismic monitoring that the utility model embodiment is provided
Structure diagram.
Specific embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with attached drawing.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore example is intended only as, and cannot this reality be limited with this
With novel protection domain.
Embodiment one
Referring to Fig. 1, the utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, including baseline 1,
Micro-displacement energy converter 2, zeroing device 3, pedestal 4 and data collector 5；
Baseline 1 gos deep into 6 inside of peephole and sets perpendicular to ground, and device buries pipe by stainless steel and is embedded in observation
Stainless steel is buried pipe by expanding cement 8 and couples fixation with the hole wall of peephole 6 by 6 bottom of hole；
Pedestal 4 is parallel to the ground to be arranged on device, and 1 top of baseline is connect with pedestal 4, and pedestal 4 is arranged on peephole 6
In the plane in portion, setting zeroing device 3 on pedestal 4, micro-displacement energy converter 2 is arranged on zeroing device 3, micro-displacement energy converter 2 and number
It is connected according to collector 5.
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and technical solution is：Including
Baseline 1, micro-displacement energy converter 2, zeroing device 3, pedestal 4 and data collector 5；Baseline 1 gos deep into peephole 6 perpendicular to ground
Inside setting, device buries pipe by stainless steel and is embedded in 6 bottom of peephole, by expanding cement 8 by stainless steel bury pipe with
The hole wall coupling of peephole 6 is fixed；Pedestal 4 is parallel to the ground to be arranged on device, and 1 top of baseline is connect with pedestal 4, pedestal 4
It is arranged in the plane on 6 top of peephole, setting zeroing device 3 on pedestal 4, micro-displacement energy converter 2 is arranged on zeroing device 3, micro-
Displacement transducer 2 is connect with data collector 5.
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and the bottom of device passes through expansion
Cement 8 is fixed, and reduces influence of the temperature to the coupling stability of different coefficient of expansions, by device acquirement vertically to the earth's crust
Strain observation data promotes strain tide to three dimensions strain observation from plane strain observation, thus by certain point
Plane strain tensor matrix-expand is to three dimensions strain tensor matrix.The acquisition of vertical strain amount will be Earthquake Prediction Research and
Geodynamic study provides fundamental analysis data.
Wherein, the deep 5~10m of peephole 6.Stainless steel buries a length of 0.5~0.8m of pipe.
Wherein, micro-displacement energy converter 2 is arranged on the surface of vertical line, vertically and ground, referring to Fig. 1.
As the preferred embodiment of the utility model, pedestal 4 is stretched into 1 top of baseline by fixed sensor iron core, the bottom of with
Seat 4 is fixedly connected, and 1 top of baseline is arranged concentrically with micro-displacement energy converter 2.1 top of baseline is concentric with micro-displacement energy converter 2
Setting makes 1 top of baseline not generate friction with 6 inner wall of peephole.
As the preferred embodiment of the utility model, baseline 1 is carbon fiber pipe.
Due to vertical strain instrument, to set 1 length of baseline to a certain extent constant, it is desirable to which baseline 1 has the line expansion system of very little
Number；1 center of gravity of baseline is too high, it is impossible to select the material that density is larger, easily be shaken by external force；Drilling is moister, exudation
Water have certain corrosivity, for long-term observation, baseline 1 should have corrosion resistance；Bore position is normally in cavern, mountain
Height of holes is limited to need baseline 1 that can carry out good splicing；And if ensureing that vertical line does not contact friction with hole wall generation, it is desirable that
Vertical line has very high rigidity, and the height of more than 10m can be supported to keep vertical；For the foregoing reasons, suitable material is selected
Baseline 1 selects carbon fiber pipe through comparing, in the present embodiment as baseline 1.As shown in the parameter in following table：
By the pipe of various materials is compared in upper table it is known that had chosen in the present embodiment density it is small, expansion
Coefficient is small, rigidity is strong, and corrosion resistant carbon fiber pipe is as 1 material of baseline.
As the preferred embodiment of the utility model, setpoint distance is provided between the hole wall of baseline 1 and peephole 6.
Baseline 1 is naturally vertical using the rigidity of itself, is not in contact with hole wall, keeps sufficient degree of freedom, make measurement
As a result it is not influenced by hole wall, more accurately.
As the preferred embodiment of the utility model, micro-displacement energy converter 2 is differential transformer displacement sensor.
Since displacement is very small, observing environment is moister, high-precision differential transformation is had chosen in the present embodiment
Device displacement sensor.This sensor whether there is that amount of friction, unlimited mechanical life, unlimited resolution ratio, zero-bit is repeatable, radial direction is unknown
The advantages that sense, input and output isolation.
Wherein, the parameters of micro-displacement energy converter 2 are：Resolving power：Better than 1 × 10-9；Drift：Less than 10-6/ year；Spirit
Sensitivity：Better than 0.01 micron；Range：More than 100 microns；Nonlinearity：≤ 1%.
Wherein, the parameters of data collector 5 are set as：Alternating Current Power Supply：220V ± 10%；Direct current supply：12V±
10%；A/d resolution：Better than four and half；Range：Not less than ± 2V；Sample rate：Not less than a point sampling；Uncertainty：It is less than
0.01% (20 DEG C) or less than ± 0.02% (- 10 DEG C~+40 DEG C).
As the preferred embodiment of the utility model, pedestal 4 for can up and down adjustment pedestal 4.
By can the pedestal 4 of up and down adjustment set, position adjusting can be carried out to micro-displacement energy converter 2.
As the preferred embodiment of the utility model, pedestal 4 includes at least one leveling footing 7, at least one leveling bottom
Foot 7 is arranged on the bottom of pedestal 4.
4 stable material quality of pedestal can carry out leveling by leveling footing 7, facilitate installation；There are balancing controls, facilitate device
Zero, which shifts, after long-term work returns to zero, and ensures the stability of device work.
As the preferred embodiment of the utility model, data collector 5 includes alterating and direct current source interface and transducer interface,
Micro-displacement energy converter 2 is connect by transducer interface with data collector 5.
It is powered, while receive observation signal for micro-displacement energy converter 2 by transducer interface.It is dress in the present embodiment
It puts and 12V DC electricity and 220V alternating currents is provided.
As the preferred embodiment of the utility model, data collector 5 further includes network interface, and data collector 5 passes through
Network interface is connect with exterior terminal.
It is for statistical analysis etc. can also 5 collected data of data collector to be sent to by exterior terminal by network interface
Processing.Preferably, network interface is RJ45 interfaces.
As the preferred embodiment of the utility model, the material of pedestal 4 is stainless steel.
Based on above device, carry out vertically to strain measurement, detailed process is：
Baseline 1 is naturally vertical using the rigidity of itself, is not in contact with hole wall, keeps sufficient degree of freedom；Top is not
Rust steel base 4 moves up and down the micro-displacement sensor placed on balancing controls, under particular circumstances regarding 1 length of baseline not
Become, when the distance change on 6 bottom of peephole and ground, this variation is converted to change in electric by micro-displacement energy converter 2, by counting
According to collector 5 by certain format acquisition, storage, transmission, the continuous observation to vertical strain amount is realized.
Compared with prior art, the beneficial effects of the utility model are：
The utility model provides a kind of vertical strain discharge observation device based on seismic monitoring, and the bottom of device passes through expansion
Cement 8 is fixed, and reduces influence of the temperature to the coupling stability of different coefficient of expansions, by device acquirement vertically to the earth's crust
Strain observation data promotes strain tide to three dimensions strain observation from plane strain observation, thus by certain point
Plane strain tensor matrix-expand is to three dimensions strain tensor matrix.The acquisition of vertical strain amount will be Earthquake Prediction Research and
Geodynamic study provides fundamental analysis data.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (10)
1. the vertical strain discharge observation device based on seismic monitoring, which is characterized in that
Including baseline, micro-displacement energy converter, zeroing device, pedestal and data collector；
The baseline gos deep into inside peephole setting perpendicular to ground, and described device buries pipe by stainless steel and is embedded in sight
The stainless steel is buried pipe by expanding cement and couples fixation with the hole wall of the peephole by gaging hole bottom；
The pedestal setting parallel to the ground on such devices, is connect, the pedestal is set at the top of the baseline with the pedestal
It puts in the plane on peephole top, setting zeroing device, the micro-displacement energy converter are arranged on the zeroing device on the pedestal
On, the micro-displacement energy converter is connect with the data collector.
2. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The pedestal is stretched by fixed sensor iron core at the top of the baseline, is fixedly connected with the pedestal, and the baseline
Top is arranged concentrically with the micro-displacement energy converter.
3. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The baseline is carbon fiber pipe.
4. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
Setpoint distance is provided between the hole wall of the baseline and the peephole.
5. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The micro-displacement energy converter is differential transformer displacement sensor.
6. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The pedestal for can up and down adjustment pedestal.
7. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The pedestal includes at least one leveling footing, and at least one leveling footing is arranged on the bottom of the pedestal.
8. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The data collector includes alterating and direct current source interface and transducer interface, and the micro-displacement energy converter passes through the transducing
Device interface is connect with the data collector.
9. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The data collector further includes network interface, and the data collector is connected by the network interface and exterior terminal
It connects.
10. the vertical strain discharge observation device according to claim 1 based on seismic monitoring, which is characterized in that
The material of the pedestal is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655269.9U CN207488507U (en) | 2017-12-01 | 2017-12-01 | Vertical strain discharge observation device based on seismic monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655269.9U CN207488507U (en) | 2017-12-01 | 2017-12-01 | Vertical strain discharge observation device based on seismic monitoring |
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| CN207488507U true CN207488507U (en) | 2018-06-12 |
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| CN201721655269.9U Expired - Fee Related CN207488507U (en) | 2017-12-01 | 2017-12-01 | Vertical strain discharge observation device based on seismic monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812746A (en) * | 2020-07-23 | 2020-10-23 | 中国地震局地壳应力研究所 | Borehole strain gauge in-situ calibration method based on seismic surface wave |
| CN117092688A (en) * | 2023-07-04 | 2023-11-21 | 重庆地质矿产研究院 | Vertical strain quantity observation device and method based on seismic monitoring |
-
2017
- 2017-12-01 CN CN201721655269.9U patent/CN207488507U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812746A (en) * | 2020-07-23 | 2020-10-23 | 中国地震局地壳应力研究所 | Borehole strain gauge in-situ calibration method based on seismic surface wave |
| CN111812746B (en) * | 2020-07-23 | 2023-07-07 | 应急管理部国家自然灾害防治研究院 | Borehole strain gauge in-situ calibration method based on seismic surface wave |
| CN117092688A (en) * | 2023-07-04 | 2023-11-21 | 重庆地质矿产研究院 | Vertical strain quantity observation device and method based on seismic monitoring |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20181201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |