CN105092105B - A kind of local overcoring method test device of Deep ground stress - Google Patents
A kind of local overcoring method test device of Deep ground stress Download PDFInfo
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- CN105092105B CN105092105B CN201510241960.1A CN201510241960A CN105092105B CN 105092105 B CN105092105 B CN 105092105B CN 201510241960 A CN201510241960 A CN 201510241960A CN 105092105 B CN105092105 B CN 105092105B
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- oil cylinder
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- turnbarrel
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- testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000000994 depressogenic effect Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of local overcoring method test device of Deep ground stress, the rubber layer in its tensioning sleeve is opened in the presence of the connecting rod moved downward, so that test device is fixed on hole wall；Oscillating cylinder driving turnbarrel rotation, corresponding borehole drill construction, wiper mechanism and mechanism for testing work successively, obtain the varying aperture data needed, and then calculate the stress on measuring point ground.The characteristics of present invention has miniaturization, lightness, intellectuality, systematization, stronger EM equipment module ﹑ practicality, and its is easy to operate, can shorten time of measuring, saves measurement cost, it is adaptable to the geostress survey of side hole stress relief method under high stress.
Description
Technical field
The present invention relates to Geotechnical Engineering field, a kind of local overcoring method test dress of Deep ground stress is referred specifically to
Put.
Background technology
With continuing to develop for scientific and technological level, project scale is also constantly expanding, and the foundation engineering in worldwide is built
If constantly developing with development of resources to deep, the increase of mining depth and condition tend to be complicated, and increasing water conservancy
The engineerings such as water power, traffic, national defence and Fundamental Physics Experiments are built in the strong Tectonic activity region in deep and China, high intensity rock burst,
Continue the engineering accidents such as casualties, stop work and production that the deep engineering disaster such as large deformation and large volume landslide is caused and occupy height not
Under, the economic loss caused is startling.Initial high stress is to form above-mentioned disaster and influence different type formation of marine disasters machine
The most direct governing factor of system.Therefore, the initial field stress for accurately measuring Project Areas under buried large ground pressure be into
The rock burst of row high intensity, continue the deep engineering calamity source such as large deformation and large volume landslide rationally assess, Accurate Prediction and can
By the premise and key of prevention and control, this turns into a focus and important development direction for deep engineering research field in recent years.
Detecting earth stress most common method is hydraulic fracturing and stress relief method.Hydraulic fracturing is present must be in advance
A potentially principal direction of the stress tensor limitation consistent with borehole axial.Meanwhile, hydraulic fracturing patent CN2643300 is small
Aperture hydrofracturing detecting earth stress device；CN102998030A rock mass stress monitors；A kind of panoramas of CN103076119A are bored
The hydraulic fracturing detecting earth stress system of hole endoscope；All almost without exception, high pressure pumping station, or even super-pressure pump have been used
Stand, it lacks security, and needs a set of complicated hydraulic control system.Stress relief method is to obtain space three-dimensional crustal stress
Optimal method, but the depth capacity that resultant stress is released at present is 510m, less than hydraulic fracturing MTD.Meanwhile,
Under condition of high ground stress, often there is rock-core disking phenomenon during releasing in resultant stress, it is difficult to the complete core length needed for obtaining, into
The important technical obstacle being applied successfully for restriction resultant stress overcoring method under large ground pressure.Using local stress overcoring method,
It can then avoid and carry out covering the cake phenomenon during core stress relieving under high stress.In testing at the scene, resultant stress overcoring method is needed
Measured hole, which is crept into and rinsed, aperture deformation gauge is laid, release hole excavates, and complex operation wastes time and energy, therefore, it need to be carried out
Improve.
The content of the invention
There is provided one kind deep high-ground stress can be realized present invention aim to the deficiency for solving above-mentioned background technology
The detecting earth stress device of local stress overcoring method.
The technical scheme is that：A kind of local overcoring method test device of Deep ground stress, it is characterised in that：Including from
Set in fixes sleeve, tensioning sleeve, drive sleeve and the turnbarrel set gradually vertically under up to, the fixes sleeve
Oil cylinder is driven, the output end of the driving oil cylinder and one end of piston rod are connected, and the piston rod is axially disposed, the piston
The other end of bar is extend into the tensioning sleeve；A circle rubber layer, the rubber are provided with the outside of the barrel of the tensioning sleeve
Glue-line is connected with the piston rod by symmetrically arranged connecting rod, the two ends of the connecting rod respectively with the rubber layer, piston rod
It is hinged；The axially disposed oscillating cylinder for thering is its output end to rotate in the drive sleeve, the output end of the oscillating cylinder
It is arranged at the turnbarrel top center, borehole drill construction, wiper mechanism and test is fixedly installed in the turnbarrel
Mechanism.
In such scheme：
The radial sidewalls of the tensioning sleeve are provided with the depressed area of inside, the upper/lower terminal difference of the rubber layer
It is fixedly connected with the top and bottom of the depressed area；The connecting rod is provided with 4, and the connecting rod is with the central shaft of tensioning sleeve
It is distributed in umbrella.
The borehole drill construction is set with mechanism for testing so that turnbarrel is substantially symmetrical about its central axis, and the wiper mechanism is located at described bore
On the perpendicular bisector of holes mechanism and mechanism for testing line.
Upper spacer and lower clapboard, the fixation of the borehole drill construction and mechanism for testing have been disposed radially in the turnbarrel
End is located at the turnbarrel top lower surface, and the fixing end of the wiper mechanism is located at the lower clapboard lower surface, it is described on
Dividing plate and lower clapboard are provided with the through hole passed through by the borehole drill construction and mechanism for testing, the borehole drill construction, wiper mechanism and
The working end of mechanism for testing is located at same level.
The borehole drill construction includes the first telescopic oil cylinder, rotation motor and the drill bit set gradually along axis, described first
The fixing end of telescopic oil cylinder is fixedly installed on the turnbarrel top lower surface, the output end of first telescopic oil cylinder and institute
The base for stating rotation motor is fixedly connected, and the output end of the rotation motor is fixedly connected with the drill bit.
The wiper mechanism includes the second telescopic oil cylinder and nozzle set gradually along axis, second telescopic oil cylinder
Fixing end is fixedly installed on the lower clapboard lower surface, and the output end of second telescopic oil cylinder is fixedly connected with the nozzle.
The mechanism for testing includes the 3rd telescopic oil cylinder and deformation gauge, and the fixing end of the 3rd telescopic oil cylinder is fixedly installed
In the turnbarrel top lower surface, the output end of the 3rd telescopic oil cylinder is fixedly connected with the deformation gauge.
The turnbarrel bottom is sealed by supporting plate, and the supporting plate is provided with by the borehole drill construction, wiper mechanism
The through hole passed through with mechanism for testing, the supporting plate center is provided with detector.
The rubber layer in tensioning sleeve in the present invention is opened in the presence of the connecting rod moved downward, so that test dress
Put and be fixed on hole wall；Oscillating cylinder driving turnbarrel rotation, corresponding borehole drill construction, wiper mechanism and mechanism for testing work successively
Make, obtain the varying aperture data needed, and then calculate the stress on measuring point ground.
The characteristics of present invention has miniaturization, lightness, intellectuality, systematization, stronger EM equipment module ﹑ practicality, and
Its is easy to operate, can shorten time of measuring, saves measurement cost, it is adaptable to which the crustal stress of side hole stress relief method is surveyed under high stress
Amount.
Brief description of the drawings
Fig. 1 is schematic front view of the invention；
Fig. 2 is schematic side view of the invention；
Fig. 3 is operating diagram of the invention.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
With reference to Fig. 1 and Fig. 2, a kind of local overcoring method test device of Deep ground stress of the present embodiment, including from top to bottom
Fixes sleeve 1, tensioning sleeve 2, drive sleeve 3 and the turnbarrel 4 set gradually vertically：
Driving oil cylinder 5 is set in fixes sleeve 1, and the output end of driving oil cylinder 5 is connected with one end of piston rod 6, piston
Bar 6 is axially disposed, and the other end of piston rod 6 is extend into tensioning sleeve 2；And the barrel of tensioning sleeve 2 is provided with inside
Depressed area 10, be provided with the rubber layer 7 consistent with its section in the depressed area 10, the upper/lower terminal of rubber layer 7 respectively with depression
The top and bottom in area 10 are fixedly connected；Rubber layer 7 is connected with piston rod 6 by symmetrically arranged connecting rod 8, the two ends of connecting rod 8
It is hinged respectively with rubber layer 7, piston rod 6, connecting rod 8 is provided with 4, and connecting rod 8 is distributed with the central shaft of tensioning sleeve 2 in umbrella.
Driving oil cylinder 5 works, and can promote piston rod 6, drives the connecting rod 8 being connected with piston rod 6 to move downward, and makes rubber layer 7 to extending out
, and then rubber layer 7 is tensioned hole wall, realize the fixation of test device.
And axially disposed in drive sleeve 3 have the oscillating cylinder 9 that its output end rotates, the output end of oscillating cylinder 9
It is arranged at the top center of turnbarrel 4, borehole drill construction, wiper mechanism and mechanism for testing is fixedly installed in turnbarrel 4.
Upper spacer 11 and lower clapboard 12, borehole drill construction and test machine have been disposed radially in the turnbarrel 4 of the present embodiment
The fixing end of structure is located at the top lower surface of turnbarrel 4, and the fixing end of wiper mechanism is located at the lower surface of lower clapboard 12, upper spacer 11
Lower clapboard 12 is provided with the through hole that drilled holes mechanism and mechanism for testing are passed through, borehole drill construction, wiper mechanism and mechanism for testing
Working end is located at same level.
The borehole drill construction, mechanism for testing and wiper mechanism of the present embodiment are arranged in isosceles triangle, are specially：Drilling machine
Structure, mechanism for testing are set so that turnbarrel 4 is substantially symmetrical about its central axis, and wiper mechanism is located at borehole drill construction with being hung down in mechanism for testing line
On line.
The borehole drill construction 5 of the present embodiment includes the first telescopic oil cylinder 13, rotation motor 14 and brill set gradually along axis
First 15, the fixing end of the first telescopic oil cylinder 13 is fixedly installed on the top lower surface of turnbarrel 4, the output of the first telescopic oil cylinder 13
End is fixedly connected with the base of rotation motor 14, and the output end of rotation motor 14 is fixedly connected with drill bit 15.In the first flexible oil
The vertical power of cylinder 13 and the rotary power of rotation motor 14 are jointly under driving, and drill bit 15 carries out boring work.
The wiper mechanism of the present embodiment includes the second telescopic oil cylinder 16 and nozzle 17 set gradually along axis, and second stretches
The fixing end of oil cylinder 16 is fixedly installed on the lower surface of lower clapboard 12, and the output end of the second telescopic oil cylinder 16 is fixed with nozzle 17 to be connected
Connect.Under the vertical power drive of the second telescopic oil cylinder 16, nozzle 17 is sprayed water, and completes to carry out scavenger to the hole got out by drill bit
Make.
Mechanism for testing includes the 3rd telescopic oil cylinder 18 and deformation gauge 19, and the fixing end of the 3rd telescopic oil cylinder 18 is fixedly installed on
The top lower surface of turnbarrel 4, the output end of the 3rd telescopic oil cylinder 18 is fixedly connected with deformation gauge 19.In the 3rd telescopic oil cylinder 18
Vertical power drive under, deformation gauge 19 can be at cleaning the diverse location of metapore, measurable and record the different position of cleaning metapore
The deformation data put.
The bottom of the present embodiment turnbarrel 4 is sealed by supporting plate 20, and supporting plate 20 is provided with drilled holes mechanism, wiper mechanism
The through hole passed through with mechanism for testing, the center of supporting plate 20 is provided with detector 21, to carry out visualization tracking.
The test device of the present embodiment have miniaturization, lightness, intellectuality, systematization, EM equipment module ﹑ practicality compared with
Strong the characteristics of, its operation principle is：
1st, detecting earth stress device is first transported to set foot of hole (bottom hole has polished flat)；
2nd, driving oil cylinder 5 is worked, and promotes piston rod 6, and connecting rod 8 is moved downward, and expands outwardly rubber layer 7, and then make rubber
Glue-line 7 is tensioned hole wall, realizes the fixation of test device；
3rd, drill bit 15 by the first telescopic oil cylinder 13 promote realization feed, and by and rotation motor 14 drive drill bit 15 to rotate,
Lay measured hole, record the position of measured hole (as shown in operating position one in Fig. 3)；
4th, oscillating cylinder 9 works, and makes 90 ° of 4 rotate counterclockwise of turnbarrel, now the second telescopic oil cylinder 16 is just to measured hole
21, nozzle 17 sprays press water, cleaning measured hole (as shown in operating position two in Fig. 3)；
5th, oscillating cylinder 9 works, and makes 90 ° of rotate counterclockwise again of turnbarrel 4, now detecting earth stress aperture deformation gauge 19
Just to measured hole, the 3rd telescopic oil cylinder 18 promotes deformation gauge 19, initial footpath of the record each measuring point of aperture deformation gauge in measured hole
To deformation data (as shown in operating position three in Fig. 3)；
6th, then, drill bit 15 creeps into side hole, to enter to measured hole in the case where the first telescopic oil cylinder 13 and rotation motor 14 drive
Row stress relieving, obtains aperture deformation gauge data (as shown in operating position three in Fig. 3).
Above-mentioned bore mode, with easy to operate, shortens time of measuring, the characteristics of saving measurement cost, in high-ground stress
Area is carried out in geostress survey, can improve the success rate of detecting earth stress.
The above described is only a preferred embodiment of the present invention, not doing any formal to the structure of the present invention
Limitation.Any simple modification, equivalent variations and modification that every technical spirit according to the present invention is made to above example,
In the range of still falling within technical scheme.
Claims (6)
1. a kind of local overcoring method test device of Deep ground stress, it is characterised in that：Including setting gradually vertically from top to bottom
Fixes sleeve (1), tensioning sleeve (2), drive sleeve (3) and turnbarrel (4), driving is set in the fixes sleeve (1)
Oil cylinder (5), the output end of the driving oil cylinder (5) is connected with one end of piston rod (6), and the piston rod (6) is axially disposed,
The other end of the piston rod (6) is extend into the tensioning sleeve (2)；It is provided with the outside of the barrel of the tensioning sleeve (2)
One circle rubber layer (7), the rubber layer (7) is connected with the piston rod (6) by symmetrically arranged connecting rod (8), the connecting rod
(8) two ends are hinged with the rubber layer (7), piston rod (6) respectively；It is axially disposed in the drive sleeve (3) to have its defeated
Go out the oscillating cylinder (9) that end rotates, the output end of the oscillating cylinder (9) is arranged on the turnbarrel (4) top center
Borehole drill construction, wiper mechanism and mechanism for testing are fixedly installed in place, the turnbarrel (4)；The footpath of the tensioning sleeve (2)
Be provided with the depressed area (10) of inside to side wall, the upper/lower terminal of the rubber layer (7) respectively with the depressed area (10)
Top and bottom are fixedly connected；The connecting rod (8) is provided with 4, and the connecting rod (8) is in umbrella with the central shaft of tensioning sleeve (2)
Shape is distributed；The borehole drill construction is set with mechanism for testing so that turnbarrel (4) is substantially symmetrical about its central axis, and the wiper mechanism is located at described
On the perpendicular bisector of borehole drill construction and mechanism for testing line.
2. the local overcoring method test device of Deep ground stress according to claim 1, it is characterised in that：The turnbarrel
(4) upper spacer (11) and lower clapboard (12) have been disposed radially in, the fixing end of the borehole drill construction and mechanism for testing is located at institute
State turnbarrel (4) top lower surface, the fixing end of the wiper mechanism is located at the lower clapboard (12) lower surface, it is described on every
Plate (11) and lower clapboard (12) are provided with the through hole passed through by the borehole drill construction and mechanism for testing, the borehole drill construction, cleaning
The working end of mechanism and mechanism for testing is located at same level.
3. the local overcoring method test device of Deep ground stress according to claim 2, it is characterised in that：The borehole drill construction
Including the first telescopic oil cylinder (13), rotation motor (14) and drill bit (15) set gradually along axis, first telescopic oil cylinder
(13) fixing end is fixedly installed on the turnbarrel (4) top lower surface, the output end of first telescopic oil cylinder (13)
It is fixedly connected with the base of the rotation motor (14), output end and the fixed company of the drill bit (15) of the rotation motor (14)
Connect.
4. the local overcoring method test device of Deep ground stress according to claim 2, it is characterised in that：The wiper mechanism
Including the second telescopic oil cylinder (16) and nozzle (17) set gradually along axis, the fixing end of second telescopic oil cylinder (16) is consolidated
Surely the lower clapboard (12) lower surface, output end and the fixed company of the nozzle (17) of second telescopic oil cylinder (16) are arranged on
Connect.
5. the local overcoring method test device of Deep ground stress according to claim 2, it is characterised in that：The mechanism for testing
Including the 3rd telescopic oil cylinder (18) and deformation gauge (19), the fixing end of the 3rd telescopic oil cylinder (18) is fixedly installed on the rotation
Rotaring sleeve (4) top lower surface, the output end of the 3rd telescopic oil cylinder (18) is fixedly connected with the deformation gauge (19).
6. the local overcoring method test device of Deep ground stress according to claim 1 or 2, it is characterised in that：The rotation
Sleeve (4) bottom is sealed by supporting plate (20), and the supporting plate (20) is provided with by the borehole drill construction, wiper mechanism and test
The through hole that mechanism is passed through, supporting plate (20) center is provided with detector (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241960.1A CN105092105B (en) | 2015-05-13 | 2015-05-13 | A kind of local overcoring method test device of Deep ground stress |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241960.1A CN105092105B (en) | 2015-05-13 | 2015-05-13 | A kind of local overcoring method test device of Deep ground stress |
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| Publication Number | Publication Date |
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| CN105092105A CN105092105A (en) | 2015-11-25 |
| CN105092105B true CN105092105B (en) | 2017-09-19 |
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| CN201510241960.1A Expired - Fee Related CN105092105B (en) | 2015-05-13 | 2015-05-13 | A kind of local overcoring method test device of Deep ground stress |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507876B (en) * | 2015-12-14 | 2016-11-02 | 中国科学院武汉岩土力学研究所 | Integrated apparatus surveyed by a kind of brill based on stress relief method |
| CN114441073B (en) * | 2022-04-07 | 2022-08-16 | 中国科学院武汉岩土力学研究所 | Small-aperture deep-hole ground stress testing system and method for water conservancy exploration drilling |
| CN115096492B (en) * | 2022-08-29 | 2022-12-16 | 中国科学院地质与地球物理研究所 | Deep oil and gas reservoir drilling type stress relief method crustal stress measuring device and method |
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|---|---|---|---|---|
| US5545987A (en) * | 1992-12-23 | 1996-08-13 | Suspa Spannbeton Gmbh | Monitoring device for tension members of soil or rock anchors, compression members of poles, prestressing elements for prestressed concrete structures and bridge cables |
| CN102536156A (en) * | 2012-02-15 | 2012-07-04 | 甘肃铁道综合工程勘察院有限公司 | High-voltage packer for measuring ground stress of deep hole and method for manufacturing rubber sleeve of packer |
| CN103076119A (en) * | 2012-12-28 | 2013-05-01 | 煤炭科学研究总院 | Method for measuring floor heave main control stress of laneway |
| CN103075150A (en) * | 2013-02-05 | 2013-05-01 | 上海大屯能源股份有限公司 | In-situ stress testing method of method for relieving stress in original hole site for multiple times |
| CN104215364A (en) * | 2014-07-15 | 2014-12-17 | 安徽理工大学 | Self-propelled diameter-variable stress rosette pasting device used for geostress measuring |
| CN204924504U (en) * | 2015-05-13 | 2015-12-30 | 中国科学院武汉岩土力学研究所 | Division testing arrangement is separated to deep crustal stress part |
-
2015
- 2015-05-13 CN CN201510241960.1A patent/CN105092105B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545987A (en) * | 1992-12-23 | 1996-08-13 | Suspa Spannbeton Gmbh | Monitoring device for tension members of soil or rock anchors, compression members of poles, prestressing elements for prestressed concrete structures and bridge cables |
| CN102536156A (en) * | 2012-02-15 | 2012-07-04 | 甘肃铁道综合工程勘察院有限公司 | High-voltage packer for measuring ground stress of deep hole and method for manufacturing rubber sleeve of packer |
| CN103076119A (en) * | 2012-12-28 | 2013-05-01 | 煤炭科学研究总院 | Method for measuring floor heave main control stress of laneway |
| CN103075150A (en) * | 2013-02-05 | 2013-05-01 | 上海大屯能源股份有限公司 | In-situ stress testing method of method for relieving stress in original hole site for multiple times |
| CN104215364A (en) * | 2014-07-15 | 2014-12-17 | 安徽理工大学 | Self-propelled diameter-variable stress rosette pasting device used for geostress measuring |
| CN204924504U (en) * | 2015-05-13 | 2015-12-30 | 中国科学院武汉岩土力学研究所 | Division testing arrangement is separated to deep crustal stress part |
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