CN107796551A - Experiment porch and its method for measurement in a kind of local wall stress overcoring method instrument room - Google Patents
Experiment porch and its method for measurement in a kind of local wall stress overcoring method instrument room Download PDFInfo
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- CN107796551A CN107796551A CN201711240807.2A CN201711240807A CN107796551A CN 107796551 A CN107796551 A CN 107796551A CN 201711240807 A CN201711240807 A CN 201711240807A CN 107796551 A CN107796551 A CN 107796551A
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- stress
- cushion block
- wall
- experiment porch
- instrument room
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000005259 measurement Methods 0.000 title claims abstract description 23
- 238000002474 experimental method Methods 0.000 title claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 43
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims description 24
- 239000011888 foil Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses experiment porch and its method for measurement in a kind of local wall stress overcoring method instrument room, wherein, experiment porch includes pedestal and the framework being perpendicularly fixed on the pedestal in the local wall stress overcoring method instrument room, the inner roof wall of the framework is fixed with the first balance cushion block, the inner bottom wall of the framework is fixed with jack, the upper end of the jack is fixed with the second balance cushion block, rock mass to be measured passes through the described first balance cushion block and the second balance block grip, the sleeve set along vertical mode is also removably secured in the side wall of the framework, the side wall of the sleeve is provided with through hole, the through hole is corresponding with the rock mass position to be measured, crustal stress robot device is provided with the sleeve；The apparatus and method are able to ensure that the geostress survey of measuring point to be operated in the range of relatively small rock mass and complete, and avoid influence of the anisotropism key element because of Rock Nature to measurement result, improve the reliability of test achievement.
Description
Technical field
The present invention relates to rock-soil mechanics field of measuring technique, in particular it relates to a kind of local wall stress overcoring method instrument
Laboratory experiment platform and the method for carrying out the overcoring method measurement of drilling local wall stress.
Background technology
Shale gas is a kind of to contain abundant, clean and effective unconventional gas resource.Reconnoitred out for current shale gas
Hair not yet obtains the present situation of scale breakthrough on region, carries out tackling of key scientific and technical problems and reconnoitres demonstration, promotes multi-field, polymorphic type page
Rock gas survey and exploitation important breakthrough, promotion shale gas reserves are verified and Productivity Construction, are carried to complete the national shale gas object of planning
For resource base and technical guarantee.Not only it is closely related with exploitation shale gas, Deep ground stress measurement and research, and vertically
Geostress measurement in deep borehole new method, the development of new technology and the development of new instrument and crustal stress long term monitoring are also research ground
Extremely important research topic in terms of shake, earthquake mechanism and earthquake prediction.Therefore, these positions of Research on Crustal upper strata
Rock mass initial field stress state, develop it is with independent intellectual property and most advanced principle, available for vertical gun drilling
Crustal stress well logging special purpose device be really country urgent need, also for pursue geostress measurement in deep borehole in terms of reach generation
The needs of the leading ambitious goal in boundary.
It is exactly to have internal stress in its internal preservation that rock medium, which is different from one of key property of other materials, and this is main
It is to be caused by rock mass deadweight and earth history upper crust tectonic movement and remained many factors such as tectonic stress so far to cause
's.Crustal stress is the general designation to internal stress present in rock mass, and this mechanical state of engineering rock mass is not only objective reality
, and its size and Orientation is also what is varied in different localities.Geostress measurement and study and its application are throughout water conservancy and hydropower, ore deposit
Rock engineering design and estimation of stability work in all fields such as industrial engineering (IE), petroleum resources exploitation, transportation industry, it may be said that
Crustal stress is rock mechanics and engineering design and calculates one of essential master data data of analysis.Both at home and abroad for not
The research of the measuring method and its dependence test technology of the initial field stress state in situ influenceed by Engineering Disturbance area existing more than 80
The history in year, in the numerous earth stress measuring methods having pointed out, especially with drilling hole stress solution in rock mechanics and engineering field
The application of division is the most universal, and its measuring technology develops also relatively ripe and perfect.Nevertheless, drilling hole stress solution
Certain limitation is remained in actual application of division earth stress measuring method itself, particularly dimensionally should
It is particularly true in terms of power measurement.
The content of the invention
It is an object of the invention to provide experiment porch in a kind of local wall stress overcoring method instrument room and carry out drilling office
The method of portion's wall stress overcoring method measurement, this method are able to ensure that the geostress survey of measuring point is operated in relatively small rock
Completed in the range of body, avoid influence of the anisotropism key element because of Rock Nature to measurement result, improve test achievement can
By property.
To achieve these goals, the invention provides experiment porch in a kind of local wall stress overcoring method instrument room,
Experiment porch includes pedestal and the framework being perpendicularly fixed on the pedestal in the local wall stress overcoring method instrument room,
The inner roof wall of the framework is fixed with the first balance cushion block, and the inner bottom wall of the framework is fixed with jack, the jack
Upper end is fixed with the second balance cushion block, and rock mass to be measured passes through the described first balance cushion block and the second balance block grip, the frame
The sleeve set along vertical mode is also removably secured in the side wall of frame, the side wall of the sleeve is provided with through hole, described
Through hole is corresponding with the rock mass position to be measured, and crustal stress robot device is provided with the sleeve.
Preferably, the framework includes being respectively and vertically fixed at two longerons on the pedestal, two longerons
Upper end is connected by crossbeam respectively with the lower end of two longerons, and the first balance cushion block is held within the institute of top
The lower surface of crossbeam is stated, the jack is held within the upper surface of the crossbeam of lower section.
Preferably, horizontally disposed support is removably secured on the longeron, the lower end of the sleeve is consolidated
Surely there is bracket, the bracket is removably attached on the support.
Preferably, the support and the longeron are connected by screw connection, the bracket and the support by screw
Connect.
Preferably, the longeron surface is provided with multiple screwed holes from top to bottom, and the support is screwed in institute
State on screwed hole.
Preferably, the first balance cushion block is rectangular block architecture, and the second balance cushion block by sequentially connecting from top to bottom
Rectangular block architecture and the cylinder composition connect.
Bored present invention also offers a kind of using experiment porch in above-mentioned local wall stress overcoring method instrument room
The method of hole local wall stress overcoring method measurement, methods described include：
1) crustal stress robot device is put into sleeve, rock mass to be measured is placed on the first balance cushion block and second flat
Between weighing apparatus cushion block, and clamped by jack；
2) side of rock mass to be measured is polished by crustal stress robot device；
3) a diameter of 30-40mm rounded face is selected on the side of the rock mass to be measured after polishing, and is glued in rounded face
Four component strain clumps are connect, the foil gauge of each four component strains clump is mutually in 45° angle；
4) after four component strain clumps consolidate, ring cutting drilling is carried out along above-mentioned rounded face using crustal stress robot device
Operation, the depth of drilling is 40-60mm, and data record is carried out by the deformeter being connected with four component strain clumps；
5) stop ring cutting drilling operation after hole wall wall stabilization, 1-2 groups are arranged in the side wall of the bottom hole of drilling
Clump is strained, data record is carried out by the deformeter with straining Cong Xianglian.
Preferably, in step (5), when the strain clump arranged in the side wall of the bottom hole of drilling is 2 groups, 2 groups of strain clumps
Angle between drilling axis is 110 °~130 °.
According to above-mentioned technical proposal, the invention provides experiment porch in a kind of local wall stress overcoring method instrument room
And the method that local wall stress overcoring method measures that drills is carried out, the local wall stress overcoring method instrument laboratory experiment is put down
Platform includes pedestal and the framework being perpendicularly fixed on the pedestal, and the inner roof wall of the framework is fixed with the first balance cushion block, institute
The inner bottom wall for stating framework is fixed with jack, and the upper end of the jack is fixed with the second balance cushion block, and rock mass to be measured passes through institute
The first balance cushion block and the second balance block grip are stated, has also been removably secured along vertical mode in the side wall of the framework
The sleeve of setting, the side wall of the sleeve are provided with through hole, and the through hole is corresponding with the rock mass position to be measured, the set
Crustal stress robot device is provided with cylinder；The equipment is in side-wall hole, with sleeve perforate UNICOM, the stretching machinery from the hole
Arm can be completed to paste foil gauge and test the work of test block coring.The apparatus and method are able to ensure that the crustal stress of measuring point
Measurement, which is operated in the range of relatively small rock mass, to be completed, and avoids the anisotropism key element because of Rock Nature to measurement result
Influence, improve the reliability of test achievement.
Other features and advantages of the present invention：
1. this method allows the process of crustal stress robot device test crustal stress can be square in less space indoors
Just intuitively demonstrate.
2. this method stresses on test block with jack, underground force-bearing of surrounding rock mass situation is simulated, takes full advantage of and is released from stress
Shorter, the easy to implement advantage of core.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the first state of experiment porch in a kind of local wall stress overcoring method instrument room provided by the invention
Structure chart；
Fig. 2 is second of state of experiment porch in a kind of local wall stress overcoring method instrument room provided by the invention
Structure chart.
Description of reference numerals is as follows：
1- sleeve 2- brackets
3- support 4- pedestals
5- frameworks 6- first balances cushion block.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, " vertical method, horizontal direction " etc. is included in term
The noun of locality only represent orientation of the term under normal service condition, or be skilled artisan understands that be commonly called as, without
It should be regarded as the limitation to the term.
As depicted in figs. 1 and 2：The invention provides experiment porch in a kind of local wall stress overcoring method instrument room, institute
Stating experiment porch in local wall stress overcoring method instrument room includes pedestal 4 and the framework 5 being perpendicularly fixed on the pedestal 4,
The inner roof wall of the framework 5 is fixed with the first balance cushion block 6, and the inner bottom wall of the framework 5 is fixed with jack, described very heavy
The upper end on top is fixed with the second balance cushion block, and rock mass to be measured balances block grip by the described first balance cushion block 6 and second,
The sleeve 1 set along vertical mode is also removably secured in the side wall of the framework 5, the side wall of the sleeve 1 is provided with
Through hole, the through hole is corresponding with the rock mass position to be measured, and crustal stress robot device is provided with the sleeve 1.This sets
Standby and method is able to ensure that the geostress survey of measuring point to be operated in the range of relatively small rock mass and completes, avoid because of rock mass
Influence of the anisotropism key element of matter to measurement result, improve the reliability of test achievement.
In a kind of preferred embodiment of the present invention, in order to preferably fix rock mass to be measured, measurement result is improved
Accuracy, the framework 5 include being respectively and vertically fixed at two longerons on the pedestal 4, the upper end of two longerons and
The lower end of two longerons is connected by crossbeam respectively, and the first balance cushion block 6 is held within the crossbeam of top
Lower surface, the jack be held within lower section the crossbeam upper surface.
In a kind of preferred embodiment of the present invention, in order to preferably fix rock mass to be measured, measurement result is improved
Accuracy, horizontally disposed support 3 is removably secured on the longeron, the lower end of the sleeve 1 is fixed with support
Frame 2, the bracket 2 are removably attached on the support 3.
In a kind of preferred embodiment of the present invention, in order to facilitate the installation and removal of sleeve 1, the He of support 3
The longeron passes through screw connection by screw connection, the bracket 2 and the support 3.
It is convenient to rock in order to facilitate the position of the opposing frame 5 of sleeve 1 in a kind of preferred embodiment of the present invention
Body measures, and the longeron surface is provided with multiple screwed holes from top to bottom, and the support 3 is screwed in described
On screwed hole.
In a kind of preferred embodiment of the present invention, in order to preferably fix rock mass to be measured, measurement result is improved
Accuracy, the first balance cushion block 6 be rectangular block architecture, and described second balances cushion block by the square that is sequentially connected with from top to bottom
Shape block structure and cylinder composition.
Bored present invention also offers a kind of using experiment porch in above-mentioned local wall stress overcoring method instrument room
The method of hole local wall stress overcoring method measurement, methods described include：
1st, crustal stress robot device is put into sleeve 1 (a diameter of 168mm of sleeve here), by rock mass to be measured
(rock mass to be measured chooses smooth square griotte test block) is placed between the first balance cushion block 6 and the second balance cushion block, and is led to
Cross jack clamping；
2nd, the manipulator stretched out by crustal stress robot device side-wall hole polishes to the side of rock mass to be measured；
3rd, a diameter of 30-40mm rounded face is selected on the side of the rock mass to be measured after polishing, and is glued in rounded face
Four component strain clumps are connect, the foil gauge of each four component strains clump is mutually in 45° angle；
4th, after four component strain clumps consolidate, ring cutting drilling is carried out along above-mentioned rounded face using crustal stress robot device
Operation (carries out stress relieving operation), and the depth of drilling is 40-60mm, is entered by the deformeter being connected with four component strain clumps
Row data record (obtains the normal strain changing value of at least four different directions)；
5th, stop ring cutting drilling operation after hole wall wall stabilization, 1-2 groups are arranged in the side wall of the bottom hole of drilling
Straining clump, (when the strain clump arranged in the side wall of the bottom hole of drilling is 2 groups, angle of 2 groups of strain clumps between drilling axis is
110 °~130 °), the hole wall of two groups of eight different directions (is obtained by the deformeter progress data record with straining Cong Xianglian
Normal strain value, along with bottom hole strain measurement value, improve the measurement accuracy of three-dimensional ground stress).After completing to measure, according to side
The normal strain changing value for the different directions that the stress relieving operation of wall wall obtains, obtain no less than six independent equations and form
System of linear equations, it is known that the modulus of elasticity and Poisson's ratio of measuring point rock material, solve to obtain measuring point by least square method
Six crustal stress components, obtain the three-dimensional ground stress of measuring point.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention is to various
Possible combination no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (8)
1. experiment porch in a kind of local wall stress overcoring method instrument room, it is characterised in that the local wall stress releases
Experiment porch includes pedestal (4) and the framework (5) being perpendicularly fixed on the pedestal (4) in method instrument room, the framework (5)
Inner roof wall is fixed with the first balance cushion block (6), and the inner bottom wall of the framework (5) is fixed with jack, the upper end of the jack
The second balance cushion block is fixed with, rock mass to be measured passes through the described first balance cushion block (6) and the second balance block grip, the framework
(5) also it is removably secured the sleeve (1) set along vertical mode in side wall, the side wall of the sleeve (1) is provided with logical
Hole, the through hole is corresponding with the rock mass position to be measured, and crustal stress robot device is provided with the sleeve (1).
2. experiment porch in local wall stress overcoring method instrument room according to claim 1, it is characterised in that the frame
Frame (5) includes being respectively and vertically fixed at two longerons on the pedestal (4), the upper end of two longerons and two it is described vertical
The lower end of beam is connected by crossbeam respectively, and the first balance cushion block (6) is held within the lower surface of the crossbeam of top,
The jack is held within the upper surface of the crossbeam of lower section.
3. experiment porch in local wall stress overcoring method instrument room according to claim 2, it is characterised in that described vertical
Horizontally disposed support (3) is removably secured on beam, the lower end of the sleeve (1) is fixed with bracket (2), described
Bracket (2) is removably attached on the support (3).
4. experiment porch in local wall stress overcoring method instrument room according to claim 3, it is characterised in that the branch
Frame (3) and the longeron pass through screw connection by screw connection, the bracket (2) and the support (3).
5. experiment porch in the local wall stress overcoring method instrument room according to claim any one of 1-4, its feature exist
In the longeron surface is provided with multiple screwed holes from top to bottom, and the support (3) is screwed in the screwed hole
On.
6. experiment porch in the local wall stress overcoring method instrument room according to claim any one of 1-5, its feature exist
In the first balance cushion block (6) be rectangular block architecture, and described second balances cushion block by the rectangular block that is sequentially connected with from top to bottom
Structure and cylinder composition.
7. experiment porch enters in the local wall stress overcoring method instrument room in a kind of 1-6 using claim described in any one
The method of row drilling local wall stress overcoring method measurement, it is characterised in that methods described includes：
1) crustal stress robot device is put into sleeve, rock mass to be measured is placed on the first balance cushion block (6) and the second balance
Between cushion block, and clamped by jack；
2) side of rock mass to be measured is polished by crustal stress robot device；
3) a diameter of 30-40mm rounded face is selected on the side of the rock mass to be measured after polishing, and four is bonded in rounded face
Component strain clump, the foil gauge of each four component strains clump is mutually in 45° angle；
4) after four component strain clumps consolidate, ring cutting drilling operation is carried out along above-mentioned rounded face using crustal stress robot device,
The depth of drilling is 40-60mm, and data record is carried out by the deformeter being connected with four component strain clumps；
5) stop ring cutting drilling operation after hole wall wall stabilization, the strain of 1-2 groups is arranged in the side wall of the bottom hole of drilling
Clump, data record is carried out by the deformeter with straining Cong Xianglian.
8. according to the method for claim 7, it is characterised in that in step (5), arranged when in the side wall of the bottom hole of drilling
Strain clump be 2 groups when, angle of 2 groups of strain clumps between drilling axis is 110 °~130 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240807.2A CN107796551B (en) | 2017-11-30 | 2017-11-30 | Indoor experiment platform of local wall stress relief method instrument and measurement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240807.2A CN107796551B (en) | 2017-11-30 | 2017-11-30 | Indoor experiment platform of local wall stress relief method instrument and measurement method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107796551A true CN107796551A (en) | 2018-03-13 |
| CN107796551B CN107796551B (en) | 2024-01-30 |
Family
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|---|---|---|---|
| CN201711240807.2A Active CN107796551B (en) | 2017-11-30 | 2017-11-30 | Indoor experiment platform of local wall stress relief method instrument and measurement method thereof |
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| CN (1) | CN107796551B (en) |
Cited By (3)
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|---|---|---|---|---|
| CN108414129A (en) * | 2018-04-02 | 2018-08-17 | 长江水利委员会长江科学院 | The direct patch crustal stress of half backpack body releases test device and method |
| CN108547613A (en) * | 2018-06-13 | 2018-09-18 | 中国科学院武汉岩土力学研究所 | A kind of device for measuring deep rock mass three-dimensional ground stress |
| CN115184171A (en) * | 2022-07-06 | 2022-10-14 | 中国科学院武汉岩土力学研究所 | In-situ rock mass modulus measurement system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414129A (en) * | 2018-04-02 | 2018-08-17 | 长江水利委员会长江科学院 | The direct patch crustal stress of half backpack body releases test device and method |
| CN108414129B (en) * | 2018-04-02 | 2023-07-14 | 长江水利委员会长江科学院 | Device and method for testing relief of direct patch ground stress of semi-enclosure |
| CN108547613A (en) * | 2018-06-13 | 2018-09-18 | 中国科学院武汉岩土力学研究所 | A kind of device for measuring deep rock mass three-dimensional ground stress |
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| CN115184171A (en) * | 2022-07-06 | 2022-10-14 | 中国科学院武汉岩土力学研究所 | In-situ rock mass modulus measurement system and method |
| CN115184171B (en) * | 2022-07-06 | 2024-06-11 | 中国科学院武汉岩土力学研究所 | In-situ rock mass modulus measurement system and method |
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|---|---|
| CN107796551B (en) | 2024-01-30 |
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