CN105699196B - Rock seepage-stress-temperature-chemical Coupling rheological measurement device and its method - Google Patents
Rock seepage-stress-temperature-chemical Coupling rheological measurement device and its method Download PDFInfo
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- CN105699196B CN105699196B CN201610061212.XA CN201610061212A CN105699196B CN 105699196 B CN105699196 B CN 105699196B CN 201610061212 A CN201610061212 A CN 201610061212A CN 105699196 B CN105699196 B CN 105699196B
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- 239000011435 rock Substances 0.000 title claims abstract description 79
- 238000012412 chemical coupling Methods 0.000 title claims abstract description 16
- 238000000518 rheometry Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 49
- 230000003204 osmotic effect Effects 0.000 claims abstract description 44
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002474 experimental method Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 239000012153 distilled water Substances 0.000 claims description 12
- 238000010998 test method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 2
- -1 Frozen-thawed cycled Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 51
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229920006247 high-performance elastomer Polymers 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000010257 thawing Methods 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ecology (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention discloses a kind of rock seepage stress temperature chemical Coupling rheological measurement device and its methods, rock sample is placed in the balancing gate pit of triaxial rheological experiment device, confining pressure is applied to rock sample by hydraulic system, the temperature for adjusting hydraulic oil carrys out control pressure indoor temperature；Chemical solution is poured rock sample bottom and top by Liang Ge chemical solutions locker room respectively, applies bottom osmotic pressure and top osmotic pressure to rock sample；After maintaining confining pressure, osmotic pressure, temperature and chemical concentrations to stablize, triaxial rheological experiment is carried out.The present invention realizes the temperature change and Frozen-thawed cycled of rock sample by the temperature of hydraulic oil in control pressure room, and the seepage flow of chemical solution is realized using the osmotic pressure difference at rock sample bottom and top, and can realize the osmotic pressure of different chemical concentrations；By the rock multi- scenarios method rheological test under different osmotic pressures, different stress, different temperatures, different chemical solutions and concentration, the long term stability problem under separately or cooperatively being acted on by underground water, Frozen-thawed cycled, chemical attack and stress quantitative study rock has reference value.
Description
Technical field
The present invention relates to rock mechanics and engineering fields, and in particular to a kind of rock seepage-stress-temperature-chemical Coupling
Rheological test devices and methods therefor.
Background technology
The multi- scenarios method problem of rock is one important research topic of current rock mechanics, has very important engineering
Background and meaning.In many underground rock projects, such as underground storage cave depot, dam foundation, underground diversion tunnel are in the presence of more
Weight factor coupling effect.The presence of underground water would generally make water and the rock effect of intercoupling, meanwhile, it permeates in water
Complex chemical composition is various, constantly corrodes rock interior, and Frozen-thawed cycled also has a significant impact to rock material destruction.Therefore
It is necessary to carry out dynamic characteristic test of the rock under seepage-stress-temperature-chemistry multi- scenarios method, analysis rock is in more couplings
Stability problem under the conditions of conjunction.
The rheology attribute testing of rock is to determine one of the main means of rock long-time stability.Therefore, development is oozed
Rheology experiment under stream-stress-temperature-chemistry multi- scenarios method necessitates.Currently, it is special to carry out rock triaxial rheology mechanics
Property experiment method it is ripe, but carry out multi- scenarios method rheological test method it is also less, there has been no different osmotic pressures, non-equalities of temperature
Degree, different stress and various concentration chemical solution separately or cooperatively act on lower stress, strain, permeability, temperature and temporal evolution
The test method of rule.
Invention content
Goal of the invention：In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of rock seepage-stress-temperature
Degree-chemical Coupling rheological measurement device and its test method, test rock material is in different osmotic pressures, different temperatures, different stress
Lower stress, strain, permeability, temperature and time Evolution are separately or cooperatively acted on various concentration chemical solution, solve rock
Stone separately or cooperatively acted on by underground water, Frozen-thawed cycled, chemical attack and stress under long term stability problem.
Technical solution：The present invention provides a kind of rock seepage-stress-temperature-chemical Coupling rheological measurement device, rock samples
It is placed in the balancing gate pit of triaxial rheological experiment device, further includes the hydraulic system being connected with balancing gate pit, bottom and top with rock sample
The Liang Ge chemical solutions locker room that portion is respectively communicated with, the hydraulic system equipped with humidostat apply the rock sample in balancing gate pit
Confining pressure, the chemical solution flowed out in Liang Ge chemical solutions locker room is added to apply bottom osmotic pressure and top osmotic pressure to rock sample respectively.
Further, the hydraulic system by hydraulic oil apply confining pressure, due to hydraulic oil solidification point minus 20 degrees with
Under, boiling point is spent more than 100, can meet Frozen-thawed cycled, the i.e. wide variation of temperature, and good heat conductivity.
Further, the balancing gate pit is equipped with temperature sensor, can measure whether reach required test temperature.
Further, the chemical solution locker room connection distilled water bottle and solution bottle, into the chemical solution locker room
It adds solution or distilled water adjusts solution concentration.
Further, the chemical solution locker room is equipped with solution concentration detection meter, by solution concentration needed for selection, realizes
The seepage flow of rock sample various concentration chemical solution.
A kind of rock seepage-stress-temperature-chemical Coupling rheometer test method, chooses and prepares rock sample, rock sample is inserted in
It is put into rubber sleeve in the balancing gate pit of triaxial rheological experiment device, hydraulic oil is poured by balancing gate pit by hydraulic system, rock sample is applied
Add confining pressure, the temperature for adjusting hydraulic oil carrys out control pressure indoor temperature；Liang Ge chemical solutions locker room respectively rushes chemical solution
Enter rock sample bottom and top, bottom osmotic pressure and top osmotic pressure are applied to rock sample；Maintain confining pressure, osmotic pressure, temperature and chemical solution
After concentration is stablized, triaxial rheological experiment, and Real-time Monitoring Data are carried out by applying axis pressure.
Further, after hydraulic oil pours balancing gate pit, hydraulic oil is adjusted into trip temperature by humidostat, and utilize temperature
It spends sensing gauge and carries out the indoor temperature measurement of pressure so that pressure indoor temperature reaches -20 DEG C of test temperature~20 DEG C.Pass through tune
The temperature for saving hydraulic oil in balancing gate pit, to realize the temperature change and Frozen-thawed cycled of rock sample.
Further, Liang Ge chemical solutions locker room is more than top osmotic pressure to the bottom osmotic pressure that rock sample applies, and the two osmotic pressure is poor
Osmotic pressure value needed for as testing.
Further, in the chemical solution locker room concentration of solution by distilled water bottle and solution bottle to adding in solution room
The mode of high concentration solution or distilled water is detected to count using solution and chooses required solution concentration, realize that rock sample is different to adjust
The seepage flow of concentration chemical solution.
Advantageous effect：The present invention realizes temperature change and the freeze thawing of rock sample by the temperature of hydraulic oil in control pressure room
Cycle, the seepage flow of chemical solution is realized using the osmotic pressure difference at rock sample bottom and top, and can realize different chemical concentrations
Osmotic pressure；Pass through the rock multi- scenarios method rheology under different osmotic pressures, different stress, different temperatures, different chemical solutions and concentration
Experiment, it is long-term steady under separately or cooperatively being acted on by underground water, Frozen-thawed cycled, chemical attack and stress quantitative study rock
Qualitative question has reference value.
Description of the drawings
Fig. 1 is test device structural schematic diagram of the present invention.
Specific implementation mode
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment：A kind of rock seepage-stress-temperature-chemical Coupling rheological measurement device, as shown in Figure 1, including rock sample
1, rubber sleeve 2, balancing gate pit 3, hydraulic system 4, humidostat 7, temperature sensor 8, Liang Ge chemical solutions locker room 9, distillation
Water bottle 14, highly concentrated solution bottle 15 and solution concentration detection meter 18, rock sample 1 are covered by high performance rubber sleeve 2 and are placed in three
In the balancing gate pit 3 of axis rheological test device, hydraulic system 4 is connected to balancing gate pit 3 and is applied to the rock sample 1 in balancing gate pit 3 by hydraulic oil 6
Add confining pressure, and humidostat 7 can be adjusted hydraulic oil 6 into trip temperature, the temperature sensor 8 that balancing gate pit 3 is equipped with, which can measure, is
It is no to reach required test temperature.Liang Ge chemical solutions locker room 9 is respectively communicated with the bottom and top of rock sample 1, the chemical solution of outflow
Liquid applies bottom osmotic pressure and top osmotic pressure respectively to rock sample 1, which is that concentration is 0.1mol/L volume fractions difference
For 40% sodium chloride, 20% sodium sulphate and 40% potassium chloride mixed solution.Wherein, applied bottom osmotic pressure is oozed more than top
Pressure, the two osmotic pressure difference are osmotic pressure value needed for experiment.Chemical solution locker room 9 connects distilled water bottle 14 and highly concentrated solution bottle 15,
Solution concentration is adjusted by adding highly concentrated solution or distilled water to it, it is dense to choose solution by solution concentration detection meter 18
Degree realizes the seepage flow of 1 various concentration chemical solution of rock sample.
The present embodiment specific implementation step is as follows：
1. obtaining underground core sample using core bit, intact, lossless and original internal structural integrity core is chosen
Sample is processed into standard cylindrical sample, and then the rock sample 1 prepared is inserted in corrosion-resistant high-performance rubber set 2；It is corrosion-resistant
High-performance rubber set 2 can bear the corrosion of various concentration chemical solution, and rubber sleeve internal diameter fits with 1 outer diameter of rock sample.
2. the rock sample 1 for packaging rubber sleeve 2 is put into balancing gate pit 3, the valve 5 of hydraulic system 4 is opened, hydraulic oil 6 rushes
Enter the surrounding of rock sample 1 in balancing gate pit 3 and carry out confining pressure predetermined value application to it, then hydraulic oil 6 is carried out by humidostat 7
Temperature is adjusted, and is carried out the temperature in balancing gate pit 3 using temperature sensing meter 8 and measured so that temperature reaches required examination in balancing gate pit 3
Test temperature；Between wherein test temperature range generally takes -20 DEG C to 20 DEG C, the temperature of hydraulic oil 6 in adjusting balancing gate pit 3 can be passed through
Degree, to realize the temperature change and Frozen-thawed cycled of rock sample 1.
3. opening valve 10,11 equipped with the chemical solution modulated in chemical solution locker room 9 and utilizing 12,13 points of conduit
Osmotic pressure is not applied to the bottom and top of rock sample 1, wherein bottom osmotic pressure is more than top osmotic pressure, and the two osmotic pressure difference is in testing
Required osmotic pressure value；Wherein solution concentration can utilize a distilled water bottle 14 and a highly concentrated solution bottle 15 to pass through controlled valve
16,17 the mode of highly concentrated solutions or distilled water is added to adjust, choose required solution concentration using solution detection meter 18, come
Realize the seepage flow of 1 various concentration chemical solution of rock sample.
4. after maintaining confining pressure, osmotic pressure, temperature and chemical concentrations to stablize, first carrying out precompressed makes stiffness bearer 19 and rock
The top pressure-bearing surface and jack 20 of sample 1 come into full contact with closure, adjust the data of axial strain gauge 21 and hoop strain meter 22,
Axis pressure is applied by reaction frame 23 and jack 20 again and carries out triaxial rheological experiment, and number is monitored by data collecting instrument 24 in real time
According to.
Claims (8)
1. a kind of rock seepage-stress-temperature-chemical Coupling rheological measurement device, rock sample are placed in triaxial rheological experiment device
In balancing gate pit, it is characterised in that：Further include the hydraulic system being connected with balancing gate pit, be respectively communicated with the bottom and top of rock sample
Liang Ge chemical solutions locker room, be equipped with humidostat the hydraulic system in balancing gate pit rock sample apply confining pressure, two
The chemical solution flowed out in chemical solution locker room applies bottom osmotic pressure to rock sample respectively and top osmotic pressure, applied bottom osmotic pressure are big
In top osmotic pressure, the two osmotic pressure difference is osmotic pressure value needed for experiment.
2. rock seepage-stress-temperature-chemical Coupling rheological measurement device according to claim 1, it is characterised in that：
The hydraulic system applies confining pressure by hydraulic oil.
3. rock seepage-stress-temperature-chemical Coupling rheological measurement device according to claim 1 or 2, feature exist
In：The balancing gate pit is equipped with temperature sensor.
4. rock seepage-stress-temperature-chemical Coupling rheological measurement device according to claim 1, it is characterised in that：
The chemical solution locker room connection distilled water bottle and solution bottle, solution or distilled water are added into the chemical solution locker room
Adjust solution concentration.
5. rock seepage-stress-temperature-chemical Coupling rheological measurement device according to claim 1 or 4, feature exist
In：The chemical solution locker room is equipped with solution concentration detection meter.
6. a kind of rock seepage-stress-temperature-chemical Coupling rheometer test method, it is characterised in that：Rock sample is chosen and prepares,
Rock sample is inserted in the balancing gate pit for being put into triaxial rheological experiment device in rubber sleeve, hydraulic oil is poured by pressure by hydraulic system
Room applies confining pressure to rock sample, and the temperature for adjusting hydraulic oil carrys out control pressure indoor temperature；Respectively will Liang Ge chemical solutions locker room
Chemical solution pours rock sample bottom and top, applies bottom osmotic pressure and top osmotic pressure to rock sample, applied bottom osmotic pressure is more than top
Osmotic pressure, the two osmotic pressure difference are osmotic pressure value needed for experiment；After maintaining confining pressure, osmotic pressure, temperature and chemical concentrations to stablize, carry out
Triaxial rheological experiment, and Real-time Monitoring Data.
7. rock seepage-stress-temperature-chemical Coupling rheometer test method according to claim 6, it is characterised in that：
After hydraulic oil pours balancing gate pit, hydraulic oil is adjusted into trip temperature by humidostat, and is pressed using temperature sensing meter
The indoor temperature of power measures so that pressure indoor temperature reaches -20 DEG C of test temperature ~ 20 DEG C.
8. rock seepage-stress-temperature-chemical Coupling rheometer test method according to claim 6, it is characterised in that：
In the chemical solution locker room concentration of solution by distilled water bottle and solution bottle to adding solution or distilled water in solution room
Mode adjust, utilize solution detection meter choose needed for solution concentration, realize the seepage flow of rock sample various concentration chemical solution.
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| CN201610061212.XA CN105699196B (en) | 2016-01-28 | 2016-01-28 | Rock seepage-stress-temperature-chemical Coupling rheological measurement device and its method |
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| CN201610061212.XA CN105699196B (en) | 2016-01-28 | 2016-01-28 | Rock seepage-stress-temperature-chemical Coupling rheological measurement device and its method |
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| CN105699196B true CN105699196B (en) | 2018-09-25 |
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