CN208059849U - A kind of double sleeve probes in the underground measured for borehole strain - Google Patents
A kind of double sleeve probes in the underground measured for borehole strain Download PDFInfo
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- CN208059849U CN208059849U CN201820533874.7U CN201820533874U CN208059849U CN 208059849 U CN208059849 U CN 208059849U CN 201820533874 U CN201820533874 U CN 201820533874U CN 208059849 U CN208059849 U CN 208059849U
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- inner cylinder
- outer barrel
- well
- underground
- filler
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- 239000000523 sample Substances 0.000 title claims abstract description 60
- 238000005553 drilling Methods 0.000 claims abstract description 57
- 239000000945 filler Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 239000011435 rock Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 15
- 239000004568 cement Substances 0.000 claims description 11
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a kind of double sleeve probes in the underground measured for borehole strain.Double sleeves, which are popped one's head in, includes：The double-sleeve structure formed by outer barrel and inner cylinder；Filled layer is arranged in the space between the outer barrel and the inner cylinder；Filler is arranged in the filled layer, and the filler can obstruct effect of the hydraulic pressure to sensor during drilling strain gauge is gone into the well, and can crustal strain sensor be passed to well again going into the well after installation is complete；Air is deposited in the segment space of filled layer, and space is provided for the liquid flowing of filler；And double sleeve seals, after filler is put into filled layer, sealing is connected between making inner barrel and outer barrel.The utility model can eliminate influence of the km deep-well hydraulic pressure to drilling strain gauge by the double sleeve probes in drilling strain gauge underground that outer barrel, inner cylinder, filler and its characteristic are constituted, and solution is provided to deep-well installation application for drilling strain gauge.
Description
Technical field
The utility model is related to the deep-well fields of drilling strain gauge, can be used in deep-well strain measurement more particularly to a kind of
Influence of the above hydraulic pressure of km to drilling strain gauge sensor is eliminated, ensures the double sets in the drilling strain gauge underground of instrument working performance
Cylinder probe.
Background technology
In the earth deformation measurement that drills, usually probe is coupled mounted on 100 meters or so of underground depth with rock, can be clear
Borehole strain solid tide, the crustal motions phenomenons such as earthquake strain wave, same shake strain step is recorded.Current drilling strain gauge spirit
Sensitivity is better than 10-10Strain, range is 10-4Strain magnitude.As drilling Crustal Deformation Observations develop to deep-well direction, 10-4It answers
It is difficult to meet the observation requirement of km deep-well to become dynamic range.It is pre- that 1000 meters of drilling 10MPa hydrostatic pressures will be such that probe generates
Deformation reaches 10-3Magnitude.This is solved the problems, such as at present, first, reducing ess-strain sensor sensitivity, it is made to obtain the survey of bigger
Range is measured, second is that the electromechanical regulating mechanism of installation, allows strain transducer to carry out operating point balance adjustment, obtain the expansion of range
Exhibition.However the decline of measurement accuracy, Wu Faman can be brought to obtain the way of bigger range by reducing Borehole strain observation sensitivity
The performance requirement of instrument is learned enough.The electromechanical regulating mechanism of installation can make the measurement structure of probe, electronic circuit become complicated, increase
Failure rate and measurement are interfered, and Borehole strain observation system reliability and stability are influenced.Therefore how in Borehole strain observation system
System is gone into the well the influence for effectively eliminating hydraulic pressure to probe in installation process, and after can guarantee Borehole strain observation system installation is complete
Normal work is that can borehole stress and strain observe one of the key technology that develop to crust deep part.
Utility model content
Based on the problems of prior art, the purpose of this utility model is to provide a kind of for deep-well strain measurement
The double sleeves in underground are popped one's head in, and are solved Borehole strain observation system and are drilled interior hydraulic pressure effect in deep-well installation process to probe generation change
The technical issues of shape.During in drilling strain gauge underground, double sleeve probes go into the well installation process, outer barrel undertakes hydraulic pressure effect and deforms,
Since the filler of the filled layer among outer barrel and inner cylinder is liquid and partial air, outer barrel deformation will not conduct hydraulic pressure
To inner cylinder, inner cylinder does not deform in the process.After drilling strain gauge probe to fitting depth, by cement injection, make
The outer barrel coupling of the double sleeve probes of drilling rock and drilling strain gauge underground.After installation coupling, among outer barrel and inner cylinder
The filler of filled layer is gradually cured by liquid, makes outer barrel and the inner cylinder coupling of the double sleeve probes in underground.By install coupling and
Filler coupling makes drilling rock, outer barrel, inner cylinder three realize that coupling, inner cylinder can be deformed with drilling rock ess-strain, passes
Sensor units of measurement is mounted on the inner tube wall of the double sleeve probes in underground, can measure the deformation of inner cylinder.Pass through borehole strain
The double sleeve probes in instrument underground can effectively offset influence of the hydraulic pressure to sensor, ensure sensor good coupling, do not influence to sense
The working performance of device enables Borehole strain observation to crust deep part development and application.
One embodiment of the utility model provides a kind of double sleeve probes in the underground measured for borehole strain, including：
The double-sleeve structure formed by outer barrel (9) and inner cylinder (81)；Filled layer (10) is arranged in the outer barrel (9) and institute
It states in the space between inner cylinder (81)；Filler (11) is arranged in the filled layer (10), and the filler (11) is being bored
Hole deformeter can obstruct effect of the hydraulic pressure to sensor during going into the well, can well be answered the earth's crust again going into the well after installation is complete
Change passes to sensor；Air (12), is deposited in the segment space of filled layer (10), is carried for the liquid flowing of filler (11)
For space；And double sleeve seals (13) make inner cylinder (81) and outer barrel (9) after filler (11) is put into filled layer (10)
Between seal be connected.
Preferably, the outer barrel (9) is located at the outermost layer of the double sleeve probes in underground, is thin-walled cylinder, and lower end is closed
Spherical shape or approximate spherical shape.
Preferably, the outer barrel (9) acts on and deformation during going into the well with hydraulic pressure, to keep the leakproofness of outer barrel
Energy.
Preferably, the inner cylinder (81) is thin-walled cylinder, and dual thin wall cylindrical structure is formed with the outer barrel (9).
Preferably, the inner cylinder (81) realizes the installation and sealing of sensor, measuring circuit, cable, to ensure sensor
With the normal work of measuring circuit.
Preferably, the inner cylinder (81) and centralizer and equipment mechanical connection of going into the well.
Preferably, the filler (11) is liquid characteristic during drilling strain gauge is gone into the well, and can obstruct hydraulic pressure
Transmission to inner cylinder (81)；It goes into the well after installation is complete in drilling strain gauge, filler (11) is with the Young equivalent with rock
Crustal strain can be passed to the sensor being arranged on inner tube wall by the solid of modulus well.
Preferably, the filler (11) is slow setting cement.
Preferably, after in drilling strain gauge underground, double sleeves probes reach fitting depths, by cement injection in the borehole,
Outer barrel (9) and drilling rock is set to couple, after cement solidification completely is coupled in drilling, the filler (11) starts to cure, and makes outer
Cylinder (9) and inner cylinder (81) realize coupling, and the filler (11) after solidification has and the equivalent Young's modulus of rock, realize drilling
The coupling of rock, outer barrel and inner cylinder three, drilling diastrophe can be efficiently transferred to inner cylinder, inner cylinder (81) made to become therewith
Shape is deformed by sensor measurement inner cylinder, realizes strain measurement.
Preferably, the air (12) has volume appropriate in filled layer (10), to ensure outer barrel during going into the well
(9) needs of deflection, and ensure the coupling performance of filler (11) after installation.
Double sleeves probe for drilling strain gauge of the utility model has the advantages that：It can effectively eliminate and go into the well
Influence of the hydraulic pressure to sensor in the process can guarantee sensor good coupling again after installation, not influence the working performance of sensor,
Enable Borehole strain observation to crust deep part application development.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art for, without creative efforts, can also be according to these attached drawings
Obtain other accompanying drawings.
Fig. 1 is the knot according to the double sleeve probes in the underground measured for borehole strain of one embodiment of the utility model
Structure schematic diagram；
Fig. 2 is the double sleeve probe installations in the underground measured for borehole strain according to one embodiment of the utility model
Schematic diagram.
Specific implementation mode
The embodiment of the utility model is explained below with reference to Figure of description.It should be noted that this theory
Involved embodiment is not exhausted in bright book, does not represent unique embodiment of the utility model.It is corresponding real below
It applies example to be intended merely to clearly illustrate the utility model content of the utility model patent, not to the restriction to embodiments thereof.
For one of ordinary skill in the field, various forms of variations can also be made on the basis of such embodiment illustrates
And change, every technical concept for belonging to the utility model and utility model content and obvious changes or variations also exist
Within the scope of protection of the utility model.
The double sleeves in the underground measured for borehole strain for being illustrated in figure 2 one embodiment according to the present utility model are visited
Head scheme of installation.The drilling strain gauge underground measured for borehole strain pair sleeves probe 8 of the utility model passes through cement 7
It is coupled with drilling rock 5.Double 8 inside of sleeve probe in underground pass through cable 3 and ground equipped with strain transducer and measuring circuit etc.
Ground instrument 2 in sight chamber 1 is connected.Due to having underground water 6 in drilling 4, drilling strain gauge underground probe 8 and electricity
Cable 3 needs encapsulation process.
As shown in Figure 1, the underground pair sleeves probe 8 for being used for borehole strain side amount includes：Inner cylinder 81, outer barrel 9, filled layer
10, filler 11, air 12, double sleeve seals 13.With reference to Fig. 1 to the double sleeves in the underground of the embodiments of the present invention
The structure of probe 8 is described in detail.
In above-mentioned underground pair sleeves probe 8, outer barrel 9 is located at the double sleeves probe most external in underground of drilling strain gauge, preferably
Its structure of ground is thin-walled cylinder barrel, and lower bottom part can be closed spherical shape or approximate spherical shape design, facilitate drilling strain gauge
Probe is gone into the well.But the utility model does not impose any restrictions the shape of outer barrel bottom, can be that drilling strain gauge is facilitated to pop one's head in
Any shape gone into the well.
In above-mentioned underground pair sleeves probe 8, preferably, the structure of inner cylinder 81 is thin-walled cylinder barrel.Inner cylinder 81 in structure and
It can be functionally identical with the underground probe cylinder of existing drilling strain gauge, sensor, measuring circuit, electricity may be implemented
The installation and sealing of cable ensure the normal work of sensor and measuring circuit, and can be with centralizer and equipment machinery of going into the well
Installation is connected, and ensures that going into the well for drilling strain gauge is smoothed out.
As described above, above-mentioned outer barrel 9 and inner cylinder 81 constitute double-sleeve structure, double thin-walled cylinder barrel knots are preferably may be constructed
Structure.
In above-mentioned underground pair sleeves probe 8, filled layer 10 is located in the space between outer barrel, inner cylinder.
In above-mentioned underground pair sleeves probe 8, filler 11 is arranged in filled layer 10, and filler has special material special
Property.During going into the well, filler has liquid feature, effectively obstructs transmission of the hydraulic pressure to inner cylinder.After the completion of going into the well, pass through filling
Cementing makes drilling and outer barrel couple, and at the same time, filled layer gradually cures, and so that outer barrel and inner cylinder is realized coupling, after solidification
Filler has and the equivalent Young's modulus of rock, and the deformation of drilling rock can be efficiently transferred to inner cylinder, make inner cylinder therewith
Deformation, is deformed by sensor measurement inner cylinder, realizes strain measurement.
In above-mentioned underground pair sleeves probe 8, suitable air 12 retains the filling sheaf space for being not to be filled object filling
It is interior.During going into the well, space is provided for the flowing of filler liquid, inner cylinder 81 is protected not acted on by hydraulic pressure.
In above-mentioned underground pair sleeves probe 8, double sleeve seals 13 are located at the inner cylinder 81 and outer barrel 9 of the double sleeves probes in underground
Upper end (one end of the spherical shape design i.e. far from outer barrel 9).Before installation of going into the well, after filler 11 pours into filled layer 10,
The double sleeve seals 13 of installation, make to form confined space between inner cylinder 81 and outer barrel 9.
The course of work of the utility model embodiment is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 show a kind of borehole strain for the earth deformation measurement that drills that one embodiment of the utility model provides
The double sleeves probes in the underground of instrument can eliminate during going into the well hydraulic pressure to boring when drilling strain gauge is installed and used in deep-well
The influence of hole deformeter, demand of the hydraulic pressure to 82 wide range of drilling strain gauge sensor during solution is gone into the well.Ensure after installation
Sensor good coupling does not influence the working performance of sensor, and Borehole strain observation is made to develop to crust deep part.Drilling strain gauge
Sensor 82 uses differential capacitor displacement sensor.As shown in Figure 1, sensor 82 is mounted on the inner cylinder of underground pair sleeves probe 8
On 81 barrel.Inner cylinder 81 and tube structure, the function of existing drilling strain gauge underground probe can be identical.In cylinder 81
Portion can install the components such as sensor 82, measuring circuit and cable, and realize sealing, outside can with centralizer and go into the well mating
Device is connected, and goes into the well installation convenient for the double sleeves probes of drilling strain gauge.
The double sleeve probes in drilling strain gauge underground are gone into the well before installation, and filler 11 (such as slow setting cement) is poured into filled layer
It in 10, not fully fills, there are 12 surpluses of air appropriate, then by double sleeve seals 13 that inner cylinder 81 and outer barrel 9 is complete
It is hermetically sealed.During in drilling strain gauge underground, double sleeve probes are gone into the well, outer barrel 9 undertakes hydraulic pressure effect and deforms, due to filling
Object 11 does not solidify also in the stage of going into the well, and is the filler 11 and air 12 of liquid in filled layer 10, and hydraulic pressure can not be transmitted to inner cylinder
81, inner cylinder does not deform during going into the well.After in drilling strain gauge underground, double sleeves probes reach fitting depths, by
Cement injection in drilling makes the outer barrel 9 of the double sleeve probes of drilling rock and drilling strain gauge underground couple.Installation coupling terminates
Afterwards, 11 slow setting cement of filler is gradually cured by liquid, and the outer barrel 9 of the double sleeve probes in underground and inner cylinder 81 is made to couple.Pass through peace
Dress coupling and the coupling of filler 11 make drilling rock, outer barrel 9,81 three of inner cylinder realize that coupling, inner cylinder 81 can be answered with drilling rock
Stress-strain and deform, sensor 82 is mounted on 81 wall of inner cylinder of the double sleeves probes in underground, can measure the deformation of inner cylinder,
And then realize strain measurement.
One embodiment of the utility model provides a kind of double sleeves in the underground of the drilling strain gauge measured for crustal strain
Probe, can effectively eliminate influence of the hydraulic pressure to sensor during going into the well, and can guarantee sensor good coupling again after installation, ensure
The performance that sensor works normally for a long time.
Obviously, those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Utility model, and being not used as the restriction to the utility model, if in the spirit of the utility model, to
Variation, the modification of the upper embodiment will all be fallen in the Claims scope of the utility model.
Claims (10)
1. a kind of double sleeve probes in the underground measured for borehole strain, which is characterized in that including：
The double-sleeve structure formed by outer barrel (9) and inner cylinder (81)；
Filled layer (10) is arranged in space between the outer barrel (9) and the inner cylinder (81)；
Filler (11) is arranged in the filled layer (10), filler (11) energy during drilling strain gauge is gone into the well
Effect of the hydraulic pressure to sensor is obstructed, can crustal strain sensor be passed into well again going into the well after installation is complete；
Air (12), is deposited in the segment space of filled layer (10), and space is provided for the liquid flowing of filler (11)；And
Double sleeve seals (13) make to seal between inner cylinder (81) and outer barrel (9) after filler (11) is put into filled layer (10)
It is connected.
2. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the outer barrel
(9) it is located at the outermost layer of the double sleeve probes in underground, is thin-walled cylinder, lower end is closed spherical shape or approximate spherical shape.
3. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the outer barrel
(9) it is acted on and deformation with hydraulic pressure during going into the well, to keep the sealing performance of outer barrel.
4. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the inner cylinder
(81) it is thin-walled cylinder, dual thin wall cylindrical structure is formed with the outer barrel (9).
5. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the inner cylinder
(81) installation and sealing for realizing sensor, measuring circuit, cable, to ensure the normal work of sensor and measuring circuit.
6. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the inner cylinder
(81) and centralizer and go into the well equipment mechanical connection.
7. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the filling
Object (11) is liquid characteristic during drilling strain gauge is gone into the well, and can obstruct transmission of the hydraulic pressure to inner cylinder (81)；It is drilling
Deformeter is gone into the well after installation is complete, and filler (11) is the solid with the Young's modulus equivalent with rock, can be well by ground
Shell strain passes to the sensor being arranged on inner tube wall.
8. the double sleeve probes in the underground measured for borehole strain according to claim 7, which is characterized in that the filling
Object (11) is slow setting cement.
9. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that answered in drilling
After becoming the double sleeve probe arrival fitting depths in instrument underground, by cement injection in the borehole, make outer barrel (9) and drilling rock coupling
It closes, after cement solidification completely is coupled in drilling, the filler (11) starts to cure, and outer barrel (9) and inner cylinder (81) is made to realize coupling
It closes, the filler (11) after solidification has and the equivalent Young's modulus of rock, realizes the coupling of drilling rock, outer barrel and inner cylinder three
It closes, drilling diastrophe can be efficiently transferred to inner cylinder, so that inner cylinder (81) is deformed therewith, become by sensor measurement inner cylinder
Shape realizes strain measurement.
10. the double sleeve probes in the underground measured for borehole strain according to claim 1, which is characterized in that the sky
Gas (12) has volume appropriate in filled layer (10), to ensure the needs of outer barrel (9) deflection during going into the well, Yi Jibao
The coupling performance of filler (11) after card installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820533874.7U CN208059849U (en) | 2018-04-16 | 2018-04-16 | A kind of double sleeve probes in the underground measured for borehole strain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820533874.7U CN208059849U (en) | 2018-04-16 | 2018-04-16 | A kind of double sleeve probes in the underground measured for borehole strain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208059849U true CN208059849U (en) | 2018-11-06 |
Family
ID=63986262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820533874.7U Withdrawn - After Issue CN208059849U (en) | 2018-04-16 | 2018-04-16 | A kind of double sleeve probes in the underground measured for borehole strain |
Country Status (1)
| Country | Link |
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| CN (1) | CN208059849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332706A (en) * | 2018-04-16 | 2018-07-27 | 中国地震局地壳应力研究所 | A kind of double sleeve probes in the underground measured for borehole strain |
-
2018
- 2018-04-16 CN CN201820533874.7U patent/CN208059849U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332706A (en) * | 2018-04-16 | 2018-07-27 | 中国地震局地壳应力研究所 | A kind of double sleeve probes in the underground measured for borehole strain |
| CN108332706B (en) * | 2018-04-16 | 2023-11-17 | 应急管理部国家自然灾害防治研究院 | Underground double-sleeve probe for borehole strain measurement |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100085, Anning Road, Haidian District, Beijing, 1, Xisanqi Patentee after: National natural disaster prevention and Control Research Institute Ministry of emergency management Address before: 100085, Anning Road, Haidian District, Beijing, 1, Xisanqi Patentee before: THE INSTITUTE OF CRUSTAL DYNAMICS, CHINA EARTHQUAKE ADMINISTRATION |
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| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181106 Effective date of abandoning: 20231117 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181106 Effective date of abandoning: 20231117 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |