CN109490119A - A kind of determination method of rock material damage variable - Google Patents
A kind of determination method of rock material damage variable Download PDFInfo
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- CN109490119A CN109490119A CN201811523932.9A CN201811523932A CN109490119A CN 109490119 A CN109490119 A CN 109490119A CN 201811523932 A CN201811523932 A CN 201811523932A CN 109490119 A CN109490119 A CN 109490119A
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- 239000011435 rock Substances 0.000 title claims abstract description 174
- 239000000463 material Substances 0.000 title claims abstract description 161
- 230000006378 damage Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000035699 permeability Effects 0.000 claims abstract description 46
- 238000011144 upstream manufacturing Methods 0.000 claims description 66
- 239000012530 fluid Substances 0.000 claims description 36
- 238000004826 seaming Methods 0.000 claims description 27
- 230000000694 effects Effects 0.000 claims description 6
- 230000002706 hydrostatic effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 206010061245 Internal injury Diseases 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
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- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to Geotechnical Engineering field more particularly to a kind of determination methods of rock material damage variable.The determination method comprises determining that permeability of the rock material under nondestructive state；Determine permeability of the rock material under faulted condition；Rock material damage variable is determined in the permeability of permeability and rock material under faulted condition under nondestructive state according to determining rock material.A kind of determination method of rock material damage variable provided by the present invention, it is based on rock material permeability and defines damage variable, the measurement of permeability does not have any damage to rock material, follow-up study is not also influenced, and it can accurately, delicately reflect degree of injury when rock material internal crack development degree is lower, practicability, accuracy and sensitivity are higher, and eligible result is more in line with reality.
Description
Technical field
The invention belongs to Geotechnical Engineering field more particularly to a kind of determination methods of rock material damage variable.
Background technique
It acts on rock mass engineering project, the load as caused by mankind's activity or environment, is all essentially to become at any time
The circulation dynamic loads of change, for example, deeps mines, traffic tunnel and hydraulic and hydroelectric engineering construction, during one's term of military service in, rock
Except can also bear because of factors such as excavation disturbance, explosion and earthquakes in addition to by static loads such as certain weight stress and tectonic stresses
Caused by dynamic circulation load.Rock material crack under the Fatigue Load of unsteady flow is constantly germinated, is extended and mutual
Perforation, it is easy to damage or even unstability, destruction, cause huge casualties and economic loss.Therefore, how quantitative
Description fatigue load degree of injury caused by rock material of change, prevention and improvement to rock mass engineering project disaster have particularly significant
Meaning.Currently, there are many kinds of the methods of determining rock material degree of injury, wherein common are based on ultrasonic velocity, sound
Emit the damage variable of the parameter definitions such as signal, ELECTROMAGNETIC RADIATION SIGNATURE and elastic modulus of rock.But it is defined using above-mentioned parameter
Damage variable has certain limitation.Therefore, a kind of rock material damage not damaged, accuracy is high, sensitivity is strong is invented
Become method for determination of amount to be of great significance.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of rocks not damaged, accuracy is high, sensitivity is strong
The determination method of stone material damage variable.
The present invention through the following technical solutions to achieve the above objectives:
A kind of determination method of rock material damage variable, the determining method include:
Determine permeability of the rock material under nondestructive state；
Determine permeability of the rock material under faulted condition；
The rock material damage variable based on permeability, the formula 1 are determined according to formula 1) are as follows:
In the formula 1: DKFor the rock material damage variable based on permeability, K0It is rock material under nondestructive state
Permeability；For the permeability under rock material faulted condition.
Further, it is determined that permeability of the rock material under nondestructive state and under faulted condition passes through multi- scenarios method
Pilot system carries out, and the multi- scenarios method pilot system includes pressure indoor, axially loaded piston, seaming chuck, loaded seat, rubber
Set, upstream pressure container, downstream pressure container and data acquisition and analysis system, in which:
The axially loaded piston is movably arranged on the top of the pressure indoor along the axial direction of the pressure indoor；
The seaming chuck is arranged in the pressure indoor, and, the seaming chuck separably with the axially loaded piston
Effect end in contact；
The bottom of the pressure indoor is arranged in the loaded seat；
It is tightly connected between the seaming chuck and the loaded seat by the rubber sleeve；
The upstream pressure container is arranged outside the pressure indoor, and the output end of the upstream pressure container passes through pipeline
It is connected with the seaming chuck；
The downstream pressure container is arranged outside the pressure indoor, and the output end of the downstream pressure container passes through pipeline
It is connected with the loaded seat；
The data acquisition and analysis system is connected with the upstream pressure container, the downstream pressure container.
Further, permeability of the determining rock material under nondestructive state specifically includes:
Described in rock material is placed between the seaming chuck and the loaded seat of the multi- scenarios method pilot system
The height of rock material described in rubber sleeve is L, cross-sectional area A；
It is oil-filled into the pressure indoor, and apply hydrostatic pressure to the pressure indoor, make rubber sleeve is inside and outside to keep stablizing；
It is V from volume1Upstream pressure container and volume be V2Downstream pressure container in, to rock material upstream and downstream point
Not Zhu Ru coefficient of viscosity is μ, the compressed coefficient is β fluid, while data acquisition and analysis system is according to the acquisition data point of setting
Time interval record variation and the time of rock material upstream and downstream Fluid pressure in real time, until rock material upstream and downstream pressure becomes
In stabilization, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure that rock material upstream is injected is promoted,
Fluid pressure downstream remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system starts to record rock material in real time again according to the time interval of the acquisition data point of setting
Expect variation and the time of upstream and downstream pressure, until upstream and downstream pressure is consistent, stops test；
According to the rock material upstream and downstream pressure of data acquisition and analysis system record and time, any acquisition data point is calculated
The rock material upstream and downstream pressure differential Δ P at momenti0And any acquisition data point moment is at a distance of the time Δ at moment on-test
ti0；
According to formula 2) calculate permeability K under rock material nondestructive state0, the formula 2) are as follows:
Further, it is determined that permeability of the rock material under faulted condition specifically includes:
Described in rock material is placed between the seaming chuck and the loaded seat of the multi- scenarios method pilot system
In rubber sleeve, the height of the rock material is L, cross-sectional area A；
It is oil-filled into the pressure indoor, and apply hydrostatic pressure to pressure indoor, make rubber sleeve is inside and outside to keep stablizing；
It is in close contact axially loaded piston and seaming chuck, axial fatigue is carried out to rock material by axially loaded piston
Load；
After rock material damages, axially loaded piston stops load and removal；
After carrying out fatigue loading to rock material, rock material internal injury crackle constantly germinates, extends and is mutually communicated；
It is V from volume1Upstream pressure container and volume be V2Downstream pressure container in, to rock material upstream and downstream point
Not Zhu Ru coefficient of viscosity is μ, the compressed coefficient is β fluid, while data acquisition and analysis system is according to the acquisition data point of setting
Time interval record variation and the time of rock material upstream and downstream Fluid pressure in real time, until rock material upstream and downstream pressure becomes
In stabilization, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure that rock material upstream is injected is promoted,
Fluid pressure downstream remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system starts to record rock material in real time again according to the time interval of the acquisition data point of setting
Expect variation and the time of upstream and downstream pressure, until upstream and downstream pressure is consistent, stops test；
According to the rock material upstream and downstream pressure of data acquisition and analysis system record and time, any acquisition data point is calculated
The rock material upstream and downstream pressure difference at momentAnd any acquisition data point moment is at a distance of the time at moment on-test
According to formula 3) calculate permeability under rock material faulted conditionThe formula 3) are as follows:
Further, the both ends of the rubber sleeve pass through clip and the seaming chuck respectively and the loaded seat connects
It connects, by the unlatching of clip, facilitates rock material being put into rubber sleeve.
Further, it is connected between the top of the pressure indoor and the loaded seat by multiple screw rods, it is multiple described
Screw rod facilitates pressure indoor and loaded seat by the loading of screw rod around the equiangularly spaced setting of central axis of the pressure indoor
Separation, further facilitates being put into for rock material.
The beneficial effects of the present invention are:
A kind of determination method of rock material damage variable provided by the present invention is defined based on rock material permeability
Damage variable, the measurement of permeability do not have any damage to rock material, do not influence on follow-up study yet, and can be quasi-
Really, degree of injury when delicately reflection rock material internal crack development degree is lower, practicability, accuracy and sensitivity are more
Height, eligible result are more in line with reality.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of the multi- scenarios method pilot system of the embodiment of the present invention；
The schematic diagram of multi- scenarios method pilot system when Fig. 2 is permeability of the rock material under nondestructive state；
Fig. 3 is the schematic diagram that multi- scenarios method pilot system carries out fatigue loading to rock material；
Fig. 4 is test effect figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of determination method of rock material damage variable, which includes:
Determine permeability of the rock material under nondestructive state；
Determine permeability of the rock material under faulted condition；
According to formula 1) determine the rock material damage variable based on permeability, formula 1) are as follows:
Formula 1) in: DKFor the rock material damage variable based on permeability, K0For infiltration of the rock material under nondestructive state
Saturating rate；For the permeability under rock material faulted condition.
Further, in the embodiment of the present invention, infiltration of the rock material under nondestructive state and under faulted condition is determined
Rate passes through multi- scenarios method pilot system and carries out.Fig. 1 is the structural schematic diagram of the multi- scenarios method pilot system of the embodiment of the present invention,
Referring to Fig. 1, which includes pressure indoor 2, axially loaded piston 1, seaming chuck 11, loaded seat 6, rubber
Set 10, upstream pressure container 5, downstream pressure container 9 and data acquisition and analysis system 7, in which:
Axially loaded piston 1 is movably arranged on the top of pressure indoor 2 along the axial direction of pressure indoor 2；
Seaming chuck 11 is arranged in pressure indoor 2, and, seaming chuck 11 is separably terminated with the effect of axially loaded piston 1
Touching；
The bottom of pressure indoor 2 is arranged in loaded seat 6；
It is tightly connected between seaming chuck 11 and loaded seat 6 by rubber sleeve 10；
Upstream pressure container 5 is arranged outside pressure indoor 2, and the output end of upstream pressure container 5 passes through pipeline and seaming chuck
11 connections；
Downstream pressure container 9 is arranged outside pressure indoor 2, and the output end of downstream pressure container 9 passes through pipeline and load bottom
Seat 6 connects；
Data acquisition and analysis system 7 is connected with upstream pressure container 5, downstream pressure container 9.
When carrying out coupling test to rock material 8, after rock material 8 is placed on rubber sleeve 10, can carry out.
Further, in conjunction with Fig. 1, the both ends of the rubber sleeve 10 of the embodiment of the present invention pass through clip 4 and seaming chuck 11 respectively
And loaded seat 6 connects, and by the unlatching of clip, facilitates rock material being put into rubber sleeve.
Further, in conjunction with Fig. 1, pass through multiple spiral shells between the top and loaded seat 6 of the pressure indoor 2 of the embodiment of the present invention
Bar 3 connects, multiple screw rods 3 around pressure indoor 2 the equiangularly spaced setting of central axis, by the loading of screw rod, facilitate pressure indoor and
The separation of loaded seat further facilitates being put into for rock material.
Fig. 2 is the schematic diagram of multi- scenarios method pilot system when determining permeability of the rock material under nondestructive state, in conjunction with
Fig. 2 in the embodiment of the present invention, determines that permeability of the rock material under nondestructive state specifically includes:
The rubber sleeve 10 rock material 8 being placed between the seaming chuck 11 of multi- scenarios method pilot system and loaded seat 6
In, the height of rock material 8 is L, cross-sectional area A；
It is oil-filled into pressure indoor 2, and apply hydrostatic pressure to pressure indoor 2, it can not only make rubber sleeve 10 is inside and outside to keep steady
The phenomenon that determining, rubber sleeve 10 and rock material 8 can also be made to be in close contact, prevent follow-up test from rubber sleeve 10 being caused to expand hair
It is raw；
It is V from volume1Upstream pressure container 5 and volume be V2Downstream pressure container 9 in, to 8 upstream and downstream of rock material
It is injected separately into the fluid that coefficient of viscosity is μ, the compressed coefficient is β, while data acquisition and analysis system 7 is according to the acquisition data of setting
The time interval of point records variation and the time of 8 upstream and downstream Fluid pressure of rock material in real time, until rock material upstream and downstream pressure
Power tends towards stability, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure of 8 upstream of rock material injection is promoted,
Fluid pressure downstream remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system 7 starts to record rock material in real time again according to the time interval of the acquisition data point of setting
Expect variation and the time of upstream and downstream pressure, until upstream and downstream pressure is consistent, stops test；
The rock material pressure difference recorded according to data acquisition and analysis system 7 and time, when calculating any acquisition data point
The rock material upstream and downstream pressure differential Δ P at quarteri0And any acquisition data point moment is at a distance of the time Δ at moment on-test
ti0；
According to formula 2) calculate permeability K under rock material nondestructive state0, formula 2) are as follows:
Fig. 3 is the schematic diagram that multi- scenarios method pilot system carries out fatigue loading to rock material, and in conjunction with Fig. 3, the present invention is real
It applies in example, determines rock material in the area of the permeability of permeability and determining rock material under nondestructive state under faulted condition
It is not that power need to be loaded to axially loaded piston 1 by loading equipemtn 12, and then applies pressure to rock sample 8, makes rock
Sample 8 damages, and specifically includes:
The rubber sleeve 10 rock material 8 being placed between the seaming chuck 11 of multi- scenarios method pilot system and loaded seat 6
In, the height of rock material 8 is L, cross-sectional area A；
It is oil-filled into pressure indoor 2, and apply hydrostatic pressure to pressure indoor 2, make rubber sleeve 10 is inside and outside to keep stablizing；
It is in close contact axially loaded piston 1 with seaming chuck 11, axis is carried out to rock material 8 by axially loaded piston 1
To fatigue loading；
After rock material 8 damages, axially loaded piston 1 stops load and removal；
After carrying out fatigue loading to rock material 8,8 internal injury crackle 13 of rock material constantly germinating, extension and mutual
Perforation, forms state shown in FIG. 1；
It is V from volume1Upstream pressure container 5 and volume be V2Downstream pressure container 9 in, to 8 upstream and downstream of rock material
It is injected separately into the fluid that coefficient of viscosity is μ, the compressed coefficient is β, while data acquisition and analysis system 7 is according to the acquisition data of setting
The time interval of point records variation and the time of 8 upstream and downstream Fluid pressure of rock material in real time, until rock material upstream and downstream pressure
Power tends towards stability, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure of 8 upstream of rock material injection is promoted,
Fluid pressure downstream remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system 7 starts to record rock material in real time again according to the time interval of the acquisition data point of setting
Expect variation and the time of upstream and downstream pressure, until upstream and downstream pressure is consistent, stops test；
The rock material pressure difference recorded according to data acquisition and analysis system 7 and time, when calculating any acquisition data point
The rock material upstream and downstream pressure difference at quarterAnd any acquisition data point moment is at a distance of the time at moment on-test
According to formula 3) calculate permeability under rock material faulted conditionFormula 3) are as follows:
The embodiment of the present invention passes through the permeability K by rock material under nondestructive state0With rock material in faulted condition
Under permeabilityBring formula into:It can determine the rock material damaging parameter D defined based on permeabilityK。
Rock material used by the embodiment of the present invention picks up from one piece of rock mass, and homogenieity is preferable, and at least three pieces of test is not
The permeability for carrying out fatigue loading sample, is averaged sample as the permeability K under nondestructive state0。
Table 1 is the loading scheme for the permeability tested under rock loss state by multi- scenarios method pilot system, and table 2 is table
The test result table of loading scheme shown in 1, Fig. 4 are test effect figure, are obtained by table 2 and Fig. 4, damage variable and fatigue load
Number correlation is loaded, load number is more, and damage variable is bigger.Rock material damages under Fatigue Load
Wound, crack is constantly germinated, is extended and be mutually communicated, increases rock material penetrating power, permeability is caused to be gradually increased.This examination
The Evolution for data suture rock material damage variable after by Fatigue Load that test obtains.
Table 1
Table 2
Following illustrated embodiment is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
The bright limitation made under any form has usually intellectual in any technical field, if not departing from the proposed skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (6)
1. a kind of determination method of rock material damage variable, which is characterized in that the determining method includes:
Determine permeability of the rock material under nondestructive state；
Determine permeability of the rock material under faulted condition；
According to formula 1) determine the rock material damage variable based on permeability, the formula 1) are as follows:
The formula 1) in: DKFor the rock material damage variable based on permeability, K0For infiltration of the rock material under nondestructive state
Saturating rate；For the permeability under rock material faulted condition.
2. a kind of determination method of rock material damage variable according to claim 1, which is characterized in that determine rock material
Permeability of the material under nondestructive state and under faulted condition passes through multi- scenarios method pilot system and carries out, the multi- scenarios method examination
Check system includes pressure indoor (2), axially loaded piston (1), seaming chuck (11), loaded seat (6), rubber sleeve (10), upstream pressure
Force container (5), downstream pressure container (9) and data acquisition and analysis system (7), in which:
The axially loaded piston (1) is movably arranged on the top of the pressure indoor (2) along the axial direction of the pressure indoor (2)；
Seaming chuck (11) setting is interior in the pressure indoor (2), and, the seaming chuck (11) separably adds with the axial direction
Carry the effect end in contact of piston (1)；
The bottom of the pressure indoor (2) is arranged on the loaded seat (6)；
It is tightly connected between the seaming chuck (11) and the loaded seat (6) by the rubber sleeve (10)；
Upstream pressure container (5) setting is external in the pressure indoor (2), and the output end of the upstream pressure container (5) is logical
Piping and the seaming chuck (11) connection；
Downstream pressure container (9) setting is external in the pressure indoor (2), and the output end of the downstream pressure container (9) is logical
Piping and the loaded seat (6) connection；
The data acquisition and analysis system (7) connects with the upstream pressure container (5), the downstream pressure container (9).
3. a kind of determination method of rock material damage variable according to claim 2, which is characterized in that the determining rock
Permeability of the stone material under nondestructive state specifically includes:
Rock material (8) is placed between the seaming chuck (11) of the multi- scenarios method pilot system and the loaded seat (6)
The rubber sleeve (10) in, the height of the rock material (8) is L, cross-sectional area A；
It is oil-filled into the pressure indoor (2), and apply hydrostatic pressure to the pressure indoor (2), make rubber sleeve (10) is inside and outside to keep
Stablize；
It is V from volume1Upstream pressure container (5) and volume be V2Downstream pressure container (9) in, up and down to rock material (8)
Trip is injected separately into the fluid that coefficient of viscosity is μ, the compressed coefficient is β, while data acquisition and analysis system (7) is according to the acquisition of setting
The time interval of data point records the variation and the time of rock material (8) upstream and downstream Fluid pressure in real time, until on rock material
Downstream pressure tends towards stability, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure of rock material (8) upstream injection is promoted, under
Trip Fluid pressure remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system (7) starts to record rock material in real time again according to the time interval of the acquisition data point of setting
The variation of upstream and downstream pressure and time stop test until upstream and downstream pressure is consistent；
According to the rock material upstream and downstream pressure of data acquisition and analysis system (7) record and time, any acquisition data point is calculated
The rock material upstream and downstream pressure differential Δ P at momenti0And any acquisition data point moment is at a distance of the time Δ at moment on-test
ti0；
According to formula 2) calculate permeability K under rock material nondestructive state0, the formula 2) are as follows:
4. a kind of determination method of rock material damage variable according to claim 2, which is characterized in that determine rock material
Expect that the permeability under faulted condition specifically includes:
Rock material (8) is placed between the seaming chuck (11) of the multi- scenarios method pilot system and the loaded seat (6)
The rubber sleeve (10) in, the height of the rock material (8) is L, cross-sectional area A；
It is oil-filled into the pressure indoor (2), and apply hydrostatic pressure to pressure indoor (2), make rubber sleeve (10) is inside and outside to keep stablizing；
Be in close contact axially loaded piston (1) and seaming chuck (11), by axially loaded piston (1) to rock material (8) into
The load of row axial fatigue；
After rock material (8) damages, axially loaded piston (1) stops load and removal；
After carrying out fatigue loading to rock material (8), rock material (8) internal injury crackle (13) constantly germinating, extension and phase
Mutually perforation；
It is V from volume1Upstream pressure container (5) and volume be V2Downstream pressure container (9) in, up and down to rock material (8)
Trip is injected separately into the fluid that coefficient of viscosity is μ, the compressed coefficient is β, while data acquisition and analysis system (7) is according to the acquisition of setting
The time interval of data point records the variation and the time of rock material (8) upstream and downstream Fluid pressure in real time, until on rock material
Downstream pressure tends towards stability, to establish uniform Fluid pressure inside rock material；
After establishing uniform Fluid pressure inside rock material, the Fluid pressure of rock material (8) upstream injection is promoted, under
Trip Fluid pressure remains unchanged, to establish initial pressure difference Δ P at rock sample upstream and downstream both ends0；
Data acquisition and analysis system (7) starts to record rock material in real time again according to the time interval of the acquisition data point of setting
The variation of upstream and downstream pressure and time stop test until upstream and downstream pressure is consistent；
According to the rock material upstream and downstream pressure of data acquisition and analysis system (7) record and time, any acquisition data point is calculated
The rock material upstream and downstream pressure difference at momentAnd any acquisition data point moment is at a distance of the time at moment on-test
According to formula 3) calculate permeability under rock material faulted conditionThe formula 3) are as follows:
5. a kind of determination method of rock material damage variable according to claim 2, which is characterized in that the rubber sleeve
(10) both ends pass through clip (4) and the seaming chuck (11) and the loaded seat (6) connection respectively.
6. a kind of determination method of rock material damage variable according to claim 2, which is characterized in that the pressure indoor
(2) it is connected between top and the loaded seat (6) by multiple screw rods (3), multiple screw rods (3) are around the pressure indoor
(2) the equiangularly spaced setting of central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523932.9A CN109490119B (en) | 2018-12-13 | 2018-12-13 | Method for determining damage variable of rock material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523932.9A CN109490119B (en) | 2018-12-13 | 2018-12-13 | Method for determining damage variable of rock material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109490119A true CN109490119A (en) | 2019-03-19 |
| CN109490119B CN109490119B (en) | 2021-04-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120067A (en) * | 2019-05-08 | 2019-08-13 | 中国科学院武汉岩土力学研究所 | Rock natural structure surface wear volume determines method, apparatus and computer equipment |
| CN111238950A (en) * | 2019-03-22 | 2020-06-05 | 湘潭大学 | Rock confining pressure device |
| CN111413230A (en) * | 2020-05-12 | 2020-07-14 | 燕山大学 | High-voltage pulse water injection excited sandstone micro-damage detection experimental device and method |
| CN114813371A (en) * | 2022-04-15 | 2022-07-29 | 安徽理工大学 | Overburden rock damage zoning and height determining method based on permeability-damage relation |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201716256U (en) * | 2010-07-14 | 2011-01-19 | 中原工学院 | Soil mass permeability testing device |
| CN102507406A (en) * | 2011-09-21 | 2012-06-20 | 青岛石大石仪科技有限责任公司 | Method and device for measuring core permeability |
| US20130312510A1 (en) * | 2010-05-06 | 2013-11-28 | Halliburton Energy Services, Inc. | Simulating Downhole Flow Through a Perforation |
| CN203422307U (en) * | 2013-07-25 | 2014-02-05 | 中国石油天然气股份有限公司 | Quick testing device for permeability of dense rock |
| CN103575631A (en) * | 2013-11-06 | 2014-02-12 | 河海大学 | Rock permeability testing system and testing method |
| CN103645298A (en) * | 2013-12-18 | 2014-03-19 | 重庆大学 | Testing method for determining self-recovering amount of damaged rock salt |
| CN103913409A (en) * | 2014-03-31 | 2014-07-09 | 河海大学 | Method for measuring gas permeation coefficient of compact rock under three dimensional stress condition |
| CN103926186A (en) * | 2014-04-28 | 2014-07-16 | 西安石油大学 | Method for quantitatively evaluating influence of water injection on distribution of pore throats |
| CN203732405U (en) * | 2014-01-13 | 2014-07-23 | 中国石油天然气股份有限公司 | Device for testing permeability of rock |
| US20160334322A1 (en) * | 2015-05-11 | 2016-11-17 | Schlumberger Technology Corporation | Methods for measurement of ultra-low permeability and porosity by accounting for adsorption |
| CN106290118A (en) * | 2016-10-26 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | Oil in Super-low Permeability rock permeability measuring method under triaxial stress effect |
| CN106323842A (en) * | 2016-10-26 | 2017-01-11 | 中国科学院武汉岩土力学研究所 | Method of true/false triaxial test capable of measuring gas permeability of dense rocks |
| WO2017106301A1 (en) * | 2015-12-14 | 2017-06-22 | Saudi Arabian Oil Company | Method and device for determining gas permeability of a subsurface formation |
| CN107014731A (en) * | 2017-03-29 | 2017-08-04 | 东北大学 | A kind of hypotonic rock gas-liquid two drives pressure pulse decay infiltration experiment device and method |
| US20170248506A1 (en) * | 2016-02-25 | 2017-08-31 | Robin Gupta | Coreflood Testing System and Methods for Simultaneous Measurement of Key Core Properties |
| CN108088778A (en) * | 2017-12-06 | 2018-05-29 | 中国科学院武汉岩土力学研究所 | A kind of rock type materials permeability, porosity testing device |
| US20180209891A1 (en) * | 2017-01-25 | 2018-07-26 | New England Research, Inc. | Method for automating control systems for performing a complex transient permeability test |
| CN208076347U (en) * | 2018-01-03 | 2018-11-09 | 中国石油天然气股份有限公司 | Rock permeability and compressed coefficient translocation device |
| CN108956412A (en) * | 2018-04-12 | 2018-12-07 | 河海大学 | A kind of method of the cold area's rock freezing-thawing damage degree of determining High aititude |
-
2018
- 2018-12-13 CN CN201811523932.9A patent/CN109490119B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130312510A1 (en) * | 2010-05-06 | 2013-11-28 | Halliburton Energy Services, Inc. | Simulating Downhole Flow Through a Perforation |
| CN201716256U (en) * | 2010-07-14 | 2011-01-19 | 中原工学院 | Soil mass permeability testing device |
| CN102507406A (en) * | 2011-09-21 | 2012-06-20 | 青岛石大石仪科技有限责任公司 | Method and device for measuring core permeability |
| CN203422307U (en) * | 2013-07-25 | 2014-02-05 | 中国石油天然气股份有限公司 | Quick testing device for permeability of dense rock |
| CN103575631A (en) * | 2013-11-06 | 2014-02-12 | 河海大学 | Rock permeability testing system and testing method |
| CN103645298A (en) * | 2013-12-18 | 2014-03-19 | 重庆大学 | Testing method for determining self-recovering amount of damaged rock salt |
| CN203732405U (en) * | 2014-01-13 | 2014-07-23 | 中国石油天然气股份有限公司 | Device for testing permeability of rock |
| CN103913409A (en) * | 2014-03-31 | 2014-07-09 | 河海大学 | Method for measuring gas permeation coefficient of compact rock under three dimensional stress condition |
| CN103926186A (en) * | 2014-04-28 | 2014-07-16 | 西安石油大学 | Method for quantitatively evaluating influence of water injection on distribution of pore throats |
| US20160334322A1 (en) * | 2015-05-11 | 2016-11-17 | Schlumberger Technology Corporation | Methods for measurement of ultra-low permeability and porosity by accounting for adsorption |
| WO2017106301A1 (en) * | 2015-12-14 | 2017-06-22 | Saudi Arabian Oil Company | Method and device for determining gas permeability of a subsurface formation |
| US20170248506A1 (en) * | 2016-02-25 | 2017-08-31 | Robin Gupta | Coreflood Testing System and Methods for Simultaneous Measurement of Key Core Properties |
| CN106290118A (en) * | 2016-10-26 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | Oil in Super-low Permeability rock permeability measuring method under triaxial stress effect |
| CN106323842A (en) * | 2016-10-26 | 2017-01-11 | 中国科学院武汉岩土力学研究所 | Method of true/false triaxial test capable of measuring gas permeability of dense rocks |
| US20180209891A1 (en) * | 2017-01-25 | 2018-07-26 | New England Research, Inc. | Method for automating control systems for performing a complex transient permeability test |
| CN107014731A (en) * | 2017-03-29 | 2017-08-04 | 东北大学 | A kind of hypotonic rock gas-liquid two drives pressure pulse decay infiltration experiment device and method |
| CN108088778A (en) * | 2017-12-06 | 2018-05-29 | 中国科学院武汉岩土力学研究所 | A kind of rock type materials permeability, porosity testing device |
| CN208076347U (en) * | 2018-01-03 | 2018-11-09 | 中国石油天然气股份有限公司 | Rock permeability and compressed coefficient translocation device |
| CN108956412A (en) * | 2018-04-12 | 2018-12-07 | 河海大学 | A kind of method of the cold area's rock freezing-thawing damage degree of determining High aititude |
Non-Patent Citations (2)
| Title |
|---|
| AMIN GHANIZADEH ET AL.: ""Experimental study of fluid transport processes in the matrix system of the European organic-rich shales: II. Posidonia Shale (Lower Toarcian, northern Germany)"", 《INTERNATIONAL JOURNAL OF COAL GEOLOGY》 * |
| 靳佩桦 等: ""急剧冷却后花岗岩物理力学及渗透性质试验研究"", 《岩石力学与工程学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238950A (en) * | 2019-03-22 | 2020-06-05 | 湘潭大学 | Rock confining pressure device |
| CN111238950B (en) * | 2019-03-22 | 2023-03-21 | 湘潭大学 | Rock confining pressure device |
| CN110120067A (en) * | 2019-05-08 | 2019-08-13 | 中国科学院武汉岩土力学研究所 | Rock natural structure surface wear volume determines method, apparatus and computer equipment |
| CN111413230A (en) * | 2020-05-12 | 2020-07-14 | 燕山大学 | High-voltage pulse water injection excited sandstone micro-damage detection experimental device and method |
| CN111413230B (en) * | 2020-05-12 | 2021-03-16 | 燕山大学 | High-voltage pulse water injection excited sandstone micro-damage detection experimental device and method |
| CN114813371A (en) * | 2022-04-15 | 2022-07-29 | 安徽理工大学 | Overburden rock damage zoning and height determining method based on permeability-damage relation |
| CN114813371B (en) * | 2022-04-15 | 2024-05-14 | 安徽理工大学 | Method for determining damage partition and height of overlying strata based on permeation-damage relationship |
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