CN107063962A - Rock couples infiltration experiment device and method - Google Patents
Rock couples infiltration experiment device and method Download PDFInfo
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- CN107063962A CN107063962A CN201611164469.4A CN201611164469A CN107063962A CN 107063962 A CN107063962 A CN 107063962A CN 201611164469 A CN201611164469 A CN 201611164469A CN 107063962 A CN107063962 A CN 107063962A
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- 239000011435 rock Substances 0.000 title claims abstract description 71
- 238000002474 experimental method Methods 0.000 title claims abstract description 42
- 238000001764 infiltration Methods 0.000 title claims abstract description 28
- 230000008595 infiltration Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000000126 substance Substances 0.000 claims abstract description 76
- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 238000003860 storage Methods 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 230000035699 permeability Effects 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 238000010998 test method Methods 0.000 claims abstract description 5
- 238000005057 refrigeration Methods 0.000 claims description 36
- 229910001220 stainless steel Inorganic materials 0.000 claims description 34
- 239000010935 stainless steel Substances 0.000 claims description 34
- 239000004411 aluminium Substances 0.000 claims description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- 238000005266 casting Methods 0.000 claims description 26
- 230000003204 osmotic effect Effects 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 238000011049 filling Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 10
- 239000001110 calcium chloride Substances 0.000 claims description 10
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 9
- 238000011068 loading method Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 68
- 239000003921 oil Substances 0.000 description 24
- 238000011160 research Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000012412 chemical coupling Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000010165 autogamy Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005111 flow chemistry technique Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- 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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Rock couples infiltration experiment device and method, and in particular to the lower In Rock Seepage Tests device and method of the chemical multi- scenarios method effect of temperature stress seepage flow.The device includes computer console, water storage box, balancing gate pit, boosting cylinder, profit converter, temperature control system, chemical solution from match system and pipe-line system.Test method comprises the following steps：Prepare and sample is installed；Temperature control device is installed；Temperature control is set；Humid test；Automatically control the experiment stabilization sub stage.The present invention is for temperature control system mode of heating is simple, range of temperature is small in existing rock coupling infiltration experiment device, function is dull, set the problem of experimental condition is less, temperature can be effectively adjusted, while automatically controlling chemical solution ph, CO in carbon acid solution is solved2The rock permeability under the problem of causing acid reduce, true reductive water rock action condition, dynamic characteristic test is easily evaporated from solution to study.
Description
Technical field
Rock (body) permeability test field of the present invention, and in particular to Temperature-Stress-seepage flow-chemistry multi- scenarios method effect
Lower In Rock Seepage Tests device and method.
Background technology
In recent years, researcher has found that the infiltration of fissure rock under temperature-seepage-stress-chemistry (THMC) coupling is special
Property changing rule, disposal buried to nuclear waste, blast treatment of soft foundation, carbon dioxide geologic sequestration, geothermal exploitation, petroleum acids are melted
Adopt, numerous water-related rock engineerings such as Hydraulic and Hydro-Power Engineering have highly important scientific meaning.At present, for rock
The experimental study of THMC couplings also has considerable room for improvement from now at present also in theoretical research stage, wherein
The temperature system and chemical solution for coupling infiltration experiment device determine the achieved temperature change of whole experiment from match system
The pH value range of scope and osmotic fluid, carrying out temperature-chemistry-seepage flow-stress multi- scenarios method experimental study to system has non-
Often important effect.Although THMC couplings research does not have maturation, someone designs some In Rock Seepage Tests dress
Put, but the matching of representative poor and experimental condition and Practical Project is unsatisfactory.Such as TOP TNDUSTRIE companies of existing France
The triaxial rheology experimental system of production, can load confined pressure, axle pressure and pore water pressure, but without reference to temperature, Chemical Control factor.
The mechanical test system of a set of stress-current-chemical Coupling of Wuhan rock-soil mechanics Research Institute, can carry out multinomial rock power
Learn mesoscale experiments.The pilot system is mainly used in the change of mechanical property under the influence of chemical factor, not only without design temperature
System, and be concentrated mainly on the mechanics of fissure rock and deformation characteristic, coupling model and mechanical relationship, it can not use
The Penetration Signature changing rule of fissure rock under the influence of system research seepage-stress-chemistry-temperature multi- scenarios method.River sea
University's Seepage Experiment room and the joint study of Chengdu servo-hydraulic equipment Co., Ltd, the design, " super-pressure (multi-channel control) of manufacture
Big flow permeameter and seepage liquefaction system ", can load confined pressure, axle pressure, osmotic pressure (i.e. pore water pressure), and can
Water chemistry experiment is carried out, but it lacks temperature-controlling system and can not consider temperature factor, and the various troublesome poeration of valve, inadequate people
Property.Importantly, the temperature control system of most existing Triaxial tester does not set heat sink typically, only
There is heater, and mode of heating is simple, heating is uneven, and range of temperature is small, it is difficult to meet wanting for seeping at high temperature experiment
Ask；And existing infiltration experiment device design function is dull, set experiment condition fewer, majority does not have chemical solution autogamy
System, it is impossible to crack permeability of rock mechanism of Evolution under further comprehensive discussion multi- scenarios method effect so that this respect
Progress is slow.
With expanding economy, problem of environmental pollution is increasingly severe, or even injures the underground environment residing for Rock And Soil.
For example, Surrounding Nuclear Waste Repositories safe handling is exactly a typical solid heat chemistry coupled problem of stream, due to the heat released by nuke rubbish
Amount influence causes rock temperature to change, while influenceing the chemical composition of underground water so that water-rock interaction mechanism changes,
The Penetration Signature and deformation properties of rock is caused to be different from normal Rock And Soil, therefore temperature conditionss, chemical action are for research
The permeability change of Rock And Soil makes great sense, and carrying out the research of temperature, water-rock interaction to Rock And Soil can be not only
Solve the problems, such as that underground environment provides theoretical foundation, application can also be provided for Practical Projects such as geothermal energy resources utilization, oil exploitations
Value.Meanwhile, temperature conditionss, water-rock interaction can influence underground water as the property presence of field in the environment in depositing for Rock And Soil
Seepage field, stress field, water chemistry reaction so that constantly the dynamic in multifactor composition is put down for Rock And Soil, particularly crack rock
In weighing apparatus system.And temperature, stress, chemistry, current are while the rock mass characteristic under collective effect is greatly affected, wherein permeating
Rate and rock strength can change a lot, and ignore the obtained rock property of ambient environmental factors research and have very big error,
It is difficult to meet actual requirement of engineering, therefore the high hydraulic pressure temperature chemical Coupling infiltration experiment device of this fissure rock high stress is special
Be temperature-controlling system therein and chemical solution from match system, be used not only for systematically carrying out temperature-seepage-stress-chemistry
The research of the lower fissure rock Penetration Signature changing rule of multi- scenarios method effect, is also worth with important Practical Project, to from now on
The experimental study of multi- scenarios method has very big impetus.
The content of the invention
The technical problem of solution：For temperature control system mode of heating is simple, add in existing rock coupling infiltration experiment device
Heat is uneven, and range of temperature is small, it is difficult to realize that seeping at high temperature is tested, and existing infiltration experiment device design function is dull, set
The problem of experimental condition is less is put, the present invention provides a kind of rock coupling infiltration experiment device and method, can effectively adjust temperature
Degree, prevents heat to scatter and disappear, and chemical solution is configured using mixing and stirring automatically, by the way of automatic injection system, can be controlled automatically
Solution ph processed, solves CO in carbon acid solution2The problem of causing acid reduce easily is evaporated from solution, is easy to system to open
Open up the research of the lower fissure rock Penetration Signature changing rule of temperature-seepage-stress-chemistry multi- scenarios method effect, true reductive water
Rock permeability, dynamic characteristic test research under rock action condition.
Technical scheme：Rock couples infiltration experiment device, including computer console, water storage box, chemical solution from disposition
System, profit converter, balancing gate pit, boosting cylinder, temperature control system and pipe-line system, water storage box by pipeline and chemical solution from
Match system is connected, and chemical solution fills parallel operation by profit from match system and is connected with balancing gate pit, inside the balancing gate pit from top to bottom
Be sequentially provided with pressure sensor, upper force-transmitting pole, on ooze plate, under ooze plate and lower force-transmitting pole, balancing gate pit bottom is described provided with boosting cylinder
Profit converter includes flow sensor d, high pressure sensor, low pressure sensor, high pressure water tank, low pressure water tank, low pressure and oozed
Saturating control valve a, low-pressure permeability control valve b, high-pressure osmosis control valve a and high-pressure osmosis control valve b, high pressure sensor are located at high pressure
Water tank, low pressure sensor is located at low pressure water tank, and the temperature control system includes insulation shell, heating controller, heating
Machine, refrigeration controller, refrigerator, titanium heating tube, cast aluminium casting stainless steel heating snare and cast aluminium casting stainless steel air dielectric
Temperature-controlled tube, the insulation shell is outside balancing gate pit, and the titanium heating tube is located at cistern interior, and the cast aluminium casting is stainless
Steel heating collar is sheathed on boosting cylinder top, and the cast aluminium casting stainless steel air dielectric temperature-controlled tube is located inside balancing gate pit, heated
Controller and refrigeration controller are located at outside balancing gate pit, are connected with cast aluminium casting stainless steel air dielectric temperature-controlled tube；
Heating controller peripheral hardware heater, the heater includes temperature sensor b, conduction oil, vacuum plant, vacuum row
Air valve and smoke alarm, vacuum plant is inside heater, and conduction oil is inside vacuum plant, and vacuum gas discharge valve is located at
At the top of vacuum plant, the temperature sensor b inserts the conduction oil of heater internal body from top；
Refrigeration controller peripheral hardware refrigerator, the refrigerator includes temperature sensor c, refrigeration filling CaCl2And closure,
Refrigeration filling CaCl is housed inside refrigerator2, refrigeration fillings of the temperature sensor c from top insertion refrigerator internal body
CaCl2；
The water storage box bottom is provided with outlet pipe, and the outlet pipe is provided with intelligent electromagnetic regulating valve a, flow sensor a；
The chemical solution includes chemical solution receptacle, intelligent electromagnetic regulating valve b, flow sensor b, intelligence high accuracy from match system
PH instrument a, intelligence high accuracy pH instrument b, cleaning Water-accumulating water cylinder, intelligent electromagnetic regulating valve c, flow sensor c, intelligent electromagnetic regulating valve d
And filter；Chemical solution receptacle and cleaning Water-accumulating water cylinder bottom, which are provided with outlet pipe, the outlet pipe, is respectively equipped with intelligent electricity
Magnetically condition valve and flow sensor；Water storage box, chemical solution receptacle and cleaning Water-accumulating water cylinder by bottom outlet pipe from left to right
The main pipeline into profit converter is connected in successively.
Preferably, the insulation shell uses Split type structure, it is made up of two halves, heat-insulated asbestos is set gradually from inside to outside
With stainless steel coaming plate.
Preferably, the heating element heater of the water storage box is titanium heating tube, the temp-controlling element of balancing gate pit is cast not for cast aluminium
Become rusty steel air dielectric temperature-controlled tube, and the temp-controlling element of boosting cylinder is cast aluminium casting stainless steel heating snare, pipe-line system heating and thermal insulation
Element is Electrothermal ring, and sets gradually on the outside of pipeline heat-insulated asbestos and stainless steel coaming plate from inside to outside.
Preferably, being provided with smoke alarm at the top of the heater.
Preferably, filling heat-conductive oil when being heated in cast aluminium casting stainless steel air dielectric temperature-controlled tube, injects during cooling
CaCl2Solution.
Preferably, pipe-line system uses the material of acid-alkali-corrosive-resisting in the rock coupling infiltration experiment device.
The test method of infiltration experiment device is coupled based on the rock described in claim 1, is comprised the following steps：
Step 1: silica gel is coated onto into rock sample surface and heat-shrink tube is put, heat-shrink tube is blown with high-temperature hot-air rifle, will be made
Good test specimen is placed on force-transmitting pole above and below the groove in balancing gate pit's upper and lower covers, connection；
Step 2: installing pressure indoor air bleeding valve, confined pressure oil-control valve is opened, until having oil to emerge in pressure indoor air bleeding valve, is closed
Close pressure indoor air bleeding valve；External heater and refrigerator in balancing gate pit, heat-insulated rubber is fixed after temperature sensor a is inserted into balancing gate pit
Glue；
Step 3: heating/cold temperatures, adjustment are set to heating/refrigeration controller in computer " KingView " system
Heating/refrigeration frequency, and initial temperature, steady temperature, final temperature and heating/refrigerating time are set, after being provided with, start
Heating/refrigerating；
Step 4: balancing gate pit is reached after target temperature, start loading confined pressure, axle pressure；Confined pressure, axle pressure reached after desired value,
Osmotic pressure exhaust is carried out, osmotic pressure is loaded after exhaust；
Step 5: chemical solution is injected into chemical solution from the chemical solution receptacle in match system, chemical solution is flowed through
Chemical solution enters profit converter from after match system, after osmotic pressure water tank is acted in profit converter by osmotic pressure gradually
Penetrate into rock sample；
Step 6: temperature field, chemical fields, stress field are progressively stablized after loading, temperature is automatically controlled by computer console
Control system, chemical solution continue for stable operation from match system and stress system and keep desired value, you can realize multi- scenarios method
Experiment.
Preferably, the collocation method of the chemical solution, its step is as follows：
Step 1: cleaning high voltage/low voltage water tank：Air in water tank in low pressure and high voltage system is complete
Cleaned after emptying；
Step 2: preparing solute：The running water of half chests is poured into chemical solution receptacle, CO is passed through2Gas, makes CO2Gas
Body after running water reaction fully with obtaining carbon acid solution；
Step 3: solute pours osmotic pressure water tank：The carbon acid solution up to target ph is punched into water tank.
Beneficial effect：1st, present invention selection titanium heating tube makees the heating of water under high pressure prime, and the water in water storage box is directly heated
To temperature in use；Pass through filling heat-conductive oil and refrigeration filling CaCl in stainless steel air dielectric temperature-controlled tube of being cast to cast aluminium2Regulation and control
The temperature of balancing gate pit；Boost cylinder selection cast aluminium casting stainless steel heating snare, so as to ensure to complete heating in 3 hours and protect
Temperature, can effectively adjust temperature, prevent heat to scatter and disappear.
2nd, the present invention sets vacuum plant in heater, provides oxygen-free environment to conduction oil, can prevent conduction oil from passing through
Heat-conducting oil pipes enter after the casting stainless steel air dielectric temperature-controlled tube heating of balancing gate pit's cast aluminium by the too high caused combustion problem of temperature；
The external smoke alarm of heater can the possible caused safety problem of the high temperature of early warning in time.
3rd, the present invention is provided with chemical solution from match system, is mixed and stirred automatically using solute chemistry material, automatic injection system
Mode carries out solution preparation, it is not necessary to artificial to carry out complicated solution preparation, automatically controls solution ph, can solve the problem that carbonic acid is molten
CO in liquid2The problem of causing acid reduce easily is evaporated from solution.
4th, the present invention is provided with automatic cleaning Water-accumulating water cylinder, and adjust flow by computer cleans the whole of chemical solution process automatically
Body experimental rig, easy to operate, water-saving and environmental protection is time saving, can solve the problem that in chemical solution long-term existence trial to experimental rig
The problem of causing to corrode.
5th, the present invention is provided with insulation shell on the outside of balancing gate pit, and heat-insulated asbestos are set gradually from inside to outside and stainless steel encloses
Plate, can effectively prevent heat exchange by sample and air exclusion, while being also that balancing gate pit periphery keeps human body adaptive temperature；And
And, insulation shell uses Split type structure, is made up of two halves, easy to disassemble.
6th, a whole set of pipe-line system uses the material of acid-alkali-corrosive-resisting (0≤pH≤14), it is ensured that its long-time stability run.
The present invention for rock (body) institute's preservation groundwater condition, rock that can truly under reductive water rock action condition
Infiltration, dynamic characteristic test research.
Brief description of the drawings
Fig. 1 is the principle schematic that rock couples infiltration experiment device；
Fig. 2 is balancing gate pit's internal structure schematic diagram；
Fig. 3 is sample schematic diagram；
Fig. 4 is heater structural representation；
Fig. 5 is refrigerator structural representation；
Fig. 6 is chemical solution autogamy system principle schematic diagram；
Fig. 7 is profit commutator principle schematic diagram.
The label declaration of parts in schematic diagram：1. pressure sensor；2. on force-transmitting pole；3. infiltrate mouth；4. TEMP
Device a；5. heating controller；6. refrigeration controller；7. pressure indoor air bleeding valve；8. hydraulic oil；9. balancing gate pit；10. insulation shell；
11. cast aluminium casting stainless steel heating snare；The stainless steel air dielectric temperature-controlled tube 12. cast aluminium is cast；13. boost cylinder；14. on ooze
Plate；15. test specimen；16. under ooze plate；17. axle hydraulic oil inlet；18. go out to ooze mouth；19. pressure head；20. lower force-transmitting pole；21. high-elastic sealing
Circle；22. heat-shrink tube；23. smoke alarm；24. vacuum gas discharge valve；25. conduction oil；26. vacuum plant；27. heater；28.
Temperature sensor b；29. refrigerator；30. refrigeration filling CaCl2；31. closure；32. temperature sensor c；33. check valve；34.
Motor；35. pump；36. water storage box；37. pressure transmitter；38. safety valve；39. intelligent electromagnetic regulating valve a；40. flow sensor
a；41. intelligent electromagnetic regulating valve b；42. flow sensor b；43. intelligent electromagnetic regulating valve c；44. flow sensor c；45. intelligence
High-precision pH instrument a；46. intelligence high accuracy pH instrument b；47. intelligent electromagnetic regulating valve d；48. filter；49. chemical solution is deposited
Device；50. clean Water-accumulating water cylinder；51. water tank；52. titanium heating tube；53. temperature sensor d；54. flow sensor d；55. high pressure is passed
Sensor；56. low pressure sensor；57. high pressure water tank；58. low pressure water tank；59. low-pressure permeability control valve a；60. low-pressure permeability
Control valve b；61. high-pressure osmosis control valve a；62. high-pressure osmosis control valve b.
Embodiment
The experimental rig and test method of the present invention are described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
Fig. 1 is the principle schematic that rock couples infiltration experiment device, and the present invention includes water storage box 36, balancing gate pit 9, boosting
Cylinder 13, profit converter, temperature control system, chemical solution are from match system and pipe-line system.
Water in water tank 51 is squeezed into water storage box 36 by reference picture 6, pump 35, by titanium heating tube 52 to the water in water storage box 36
Heating, the water flowed out from water storage box 36 passes through intelligent electromagnetic regulating valve a 39 and flow that the bottom outlet pipe of water storage box 36 is provided with
Enter chemical solution after sensor a 40 from match system, the chemical solution includes chemical solution receptacle 49 from match system, if
In the intelligent electromagnetic regulating valve b 41 and flow sensor b 42 of the bottom outlet pipe of chemical solution receptacle 49, Water-accumulating water cylinder is cleaned
50, located at the intelligent electromagnetic regulating valve c 43 and flow sensor c 44 of the cleaning bottom outlet pipe of Water-accumulating water cylinder 50, chemical solution is deposited
The outlet pipe for putting device 49 and cleaning water storage box 50 bottom is connected in the main pipeline of water outlet in water storage box 36, chemical solution receptacle successively
Intelligence high accuracy pH instrument a 45 and intelligence high accuracy pH instrument b 46 are additionally provided with main pipeline between 49 and cleaning water storage box 50,
Main pipeline after the access cleaning outlet pipe of Water-accumulating water cylinder 50 is provided with intelligent electromagnetic regulating valve d 47 and filter 48, by filter
Solution after 48 filterings enters profit converter.
Fig. 7 is the principle schematic of profit converter, and profit converter includes flow sensor d 54, high pressure sensor
55th, low pressure sensor 56, high pressure water tank 57, low pressure water tank 58, low-pressure permeability control valve a 59, low-pressure permeability control valve b
60th, high-pressure osmosis control valve a 61 and high-pressure osmosis control valve b 62, high pressure water tank 57 is provided with high pressure sensor 55, low pressure
Water tank 58 is provided with low pressure sensor 56.High pressure water tank 57 and low pressure water tank 58 are accessed by flow sensor 54 and pressed
Power room, is loaded into osmotic pressure.
Reference picture 2, confined pressure and axle pressure are realized by balancing gate pit 9 and boosting cylinder 13 respectively.
Temperature control system include insulation shell 10, heating controller 5, heater 27, refrigeration controller 6, refrigerator 29,
Titanium heating tube 52, cast aluminium casting stainless steel heating snare 11 and cast aluminium casting stainless steel air dielectric temperature-controlled tube 12, the insulation
Housing 10 is outside balancing gate pit 9, and the titanium heating tube 52 is inside water storage box 36, the cast aluminium casting stainless steel heating collar
Set 11 is located inside balancing gate pit 9 located at boosting cylinder 13 top, the cast aluminium casting stainless steel air dielectric temperature-controlled tube 12, heating control
Device 5 and refrigeration controller 6 processed are located at outside balancing gate pit 9, are connected with cast aluminium casting stainless steel air dielectric temperature-controlled tube 12；
The peripheral hardware heater 27 of heating controller 5, the heater 27 includes temperature sensor b 28, conduction oil 25, vacuum
Device 26, vacuum gas discharge valve 24 and smoke alarm 23, the inside of heater 27 are provided with vacuum plant 26, vacuum plant 26
Portion is equipped with conduction oil 25, and top is provided with vacuum gas discharge valve 24, and the temperature sensor b 28 inserts the body of heater 27 from top
Internal conduction oil 25, the top of the heater 27 is additionally provided with smoke alarm 23；
The peripheral hardware refrigerator 29 of refrigeration controller 6, the refrigerator 29 includes temperature sensor c 32, refrigeration filling CaCl2
30 and closure 31, the inside of refrigerator 29 is equipped with refrigeration filling CaCl230, the temperature sensor c 32 are inserted from top and caused
The refrigeration filling CaCl of the internal body of cold 292 30。
By heater 27 and refrigerator 29 respectively to the cast aluminium casting stainless steel air dielectric temperature-controlled tube inside balancing gate pit 9
12 filling heat-conductives oil, 25 and refrigeration filling CaCl230 temperature come in control pressure room 9, load temperature field.
Changed by computer console control pressure room 9, temperature control system, chemical solution from match system and profit
Device, so as to realize the lower In Rock Seepage Tests device of Temperature-Stress-seepage flow-chemistry multi- scenarios method effect.
The high hydraulic pressure temperature chemical Coupling permeability test temperature system device of fissure rock high stress of the present invention, experiment step
It is rapid as follows：
Step 1: preparing and installing sample：Ready silica gel is uniformly applied to the different rock sample table of specification
Face simultaneously puts heat-shrink tube 22 to sample, blows heat-shrink tube 22 with high-temperature hot-air rifle, it is close to specimen surface, prevents from laterally oozing
Stream；Increase bullet sealing ring 21 close to the place of force-transmitting pole at sample two ends, prevent heat-shrink tube from coming off, the test specimen 15 made is put
There is aperture in the middle of force-transmitting pole above and below groove in the upper and lower covers of balancing gate pit 9, connection, force-transmitting pole with being carved with annular at sample contacts
Tank and permeable steel plate, to ensure that infiltration occurs along the whole end face of sample.
Step 2: installing temperature control device：Pressure indoor air bleeding valve 7 is installed, confined pressure oil-control valve is opened, makes in hydraulic oil source system
The charged pressure room 9 of hydraulic oil 8 in, when thering is oil to emerge in the air bleeding valve of pressure indoor, illustrate to be filled with confined pressure in balancing gate pit 9
Oil, closes pressure indoor air bleeding valve 7 immediately；External heater 27 and refrigerator 29 in balancing gate pit 9, by being installed into balancing gate pit 9
The 25 or refrigeration filling CaCl of filling heat-conductive oil of cast aluminium casting stainless steel air dielectric temperature-controlled tube 12230 control confined pressure oil
Temperature；Temperature sensor a 4 is inserted fixed in balancing gate pit 9, then fixed insulating rubber, when the temperature of sample reaches desired value
When, temperature sensor a 4 feeds back to computer, and computer control heater/refrigerator is stopped.
Step 3: setting temperature control：According to test requirements document, using computer " KingView " system to heating/refrigeration control
Device processed sets heating/cold temperatures, adjusts heating/refrigeration frequency, by the initial temperature of setting, steady temperature, final temperature and
Heating/refrigeration time, temperature control system is transferred to by computer, realizes that temperature parameter is automatically gathered, temperature control system enters automatically
Row stage by stage, classification, linear heat heating and cool, be provided with after, begin to warm up/freeze；
Step 4：Humid test：Reach after target temperature, start progressively slow loading confined pressure, axle pressure；Confined pressure, axle pressure
Reach after desired value, carry out osmotic pressure exhaust, prevent thering is gas to make osmotic pressure loading unstable in pipeline, infiltration is loaded after exhaust
Pressure；
Step 5: loading chemical fields by injecting chemical solution into chemical solution receptacle 49, chemical solution is flowed through
Chemical solution enters profit converter from after match system, after osmotic pressure water tank is acted in profit converter by osmotic pressure gradually
Penetrate into rock sample, realize that temperature-seepage-stress-chemistry (THMC) is acted on the multi- scenarios method of rock sample, tested
Temperature control system continues to run with to keep target temperature constant in journey.
Step 6: automatically controlling the experiment stabilization sub stage：Temperature field, chemical fields, stress field are progressively stablized after loading, by profit
The manual control of converter, which is got to, to be automatically controlled, and temperature control system, chemical solution are automatically controlled from match system and stress by computer
System continues for stable operation and keeps desired value, you can realize that multi- scenarios method is tested.
The collocation method of the chemical solution, its step is as follows：
Step 1: cleaning high voltage/low voltage water tank：Air in water tank in low pressure and high voltage system is complete
Cleaned after emptying.Four road Hyposmolalities and hyperosmosis switch are opened, will emptied of water in computer computer control system
That waypoint hits " water outlet ", while corresponding " liter " is set into 30, flow is changed to " big flow " by " low discharge ".So continue
For a period of time, you can cleaning after the air emptying in water tank.
Step 2: configuration solute：The running water of half chests is poured into chemical solution receptacle 49, CO is passed through2Gas, makes CO2
Gas fully reacts with running water, until reaching saturation state, obtains carbon acid solution, i.e. CO2+H2O=H2CO3；Open water storage box
36 and the intelligent electromagnetic regulating valve of chemical solution receptacle 49, pass through computer and adjust flow sensor and control flow to change pipeline
The pH value of solution is learned, a variety of operating condition of test then can be set.
Step 3: solute pours osmotic pressure water tank：The carbon acid solution up to target ph is punched into osmotic pressure water tank.
In computer computer control system, click on that to be intake road " water inlet ", while " drop " on corresponding road is set into 30, thus
Start water inlet, continuing for some time to be full of.
Embodiment 2
Temperature control system includes the temperature control of balancing gate pit's temperature control and seepage water.
Seepage water temperature control：As shown in fig. 6, after being powered, pump 35 conveys water to water storage box 36, in the effect of pressure transmitter 37
Under, titanium heating tube 52 can be heated to predetermined temperature to the water in water storage box 36, while being monitored in real time.Adjusted by intelligent electromagnetic
The outflow of hot water in valve a 39 and flow sensor a 40 control water storage boxes 36 is saved, good insulation is surrounded by water pipeline
Material so that penetrate into the water temperature closely test temperature of sample.
Pressure greenhouse heating：As shown in Figure 2, Figure 4 shows, by the vacuum plant 26 of the injection heating machine 27 of conduction oil 25, afterwards will
Oil guide pipe is arranged on conduction oil porch, and conduction oil 25 enters behind balancing gate pit 9, starts heating controller 5 and design temperature target
Value, then by being heated (most to the cast aluminium oily 25 pairs of balancing gate pits 9 of filling heat-conductive in stainless steel air dielectric temperature-controlled tube 12 that cast
It is high 150 DEG C), temperature sensor a 4 is deep into balancing gate pit 9, can accurately be measured temperature in balancing gate pit 9, be reached temperature objectives
After value, heating controller 5 is stopped.Heating process is interim, whenever the temperature that temperature sensor is measured is less than desired value,
The meeting automatic start of heating controller 5, continuation is heated to balancing gate pit 9, until temperature arrives again at desired value.While in order to try
The security tested, starts smoke alarm 23 when people leaves laboratory, it is to avoid cause safe thing because the temperature of conduction oil 25 is too high
Therefore.
Balancing gate pit's refrigeration：It is similar with heating process, reference picture 2, Fig. 5.By refrigeration filling CaCl2The aqueous solution is passed through refrigerator
29, afterwards by guiding tube be arranged on cooling water inlet, start refrigeration controller 6, by cast aluminium cast stainless steel air dielectric
Injection refrigeration filling CaCl in temperature-controlled tube 12230 pairs of refrigeration of balancing gate pit 9 (minimum reachable -30 DEG C), utilize temperature sensor a 4
Feedback, the temperature in balancing gate pit 9 just can accurately reach and stably in target temperature value.
Using the device of embodiment 1, using temperature as variable, following experiment is carried out, experimental procedure is：(1) prepare and pacify
Muck sample；(2) install and temperature control system is set：Temperature is set as 25 DEG C (75 DEG C, 150 DEG C)；(3) temperature control system is filled to experiment
Put and heated；(4) object of experiment value is set：Temperature is reached after 25 DEG C of desired value (75 DEG C, 150 DEG C), by profit converter
Change into manually automatic, then in computer control system, the desired value of confined pressure is set as 2.5MPa, the desired value of osmotic pressure is set
It is set to 0.4MPa, axle pressure desired value is set as 20KN；(5) percolating fluid is collected：When showing confined pressure in computer control system, oozing
Pressure, axle pressure are reached after desired value, start, from going out to ooze the collection percolating fluid of mouth 18, then to become measuring instrument to react percolating fluid using body
Volume, i.e. average discharge.
Obtain following experimental data：
Limestone crack mean flow scale under condition of different temperatures
Test result indicates that：The initial seepage discharge of rock fracture is different under condition of different temperatures, the more high initial seepage discharge of temperature
Bigger, permeability is higher, illustrates that the Penetration Signature of rock fracture is varied widely.Experimental result and existing theoretical kissing
Close, illustrating the temperature control system of the present apparatus has very excellent performance, requirement of the experiment to temperature system device can be realized.
Embodiment 3
As shown in fig. 6, after the water in water storage box 36 is heated or cooled to target temperature, opening intelligent electromagnetic regulating valve a
39 and flow sensor a 40, makes the water infiltration flow tube road in water storage box 36；Open intelligent electromagnetic regulating valve b 41 and flow
Sensor b 42, seepage flow pipeline is equally flowed into by the solution in ready chemical solution receptacle 44；Profit is computerizedd control
The corresponding solenoid valve opening of feedback control of system acquisition flow sensor controls corresponding flow；And start intelligent height
Precision pH instrument a 45, determines pipeline pH value, until pipeline solution ph is reached after desired value, opens intelligent electromagnetic regulating valve d 47
Satisfactory chemical solution is passed through seepage flow pipeline seepage flow and enters rock sample.
Using the device of embodiment 1, using seepage flow solution as variable, tested, experimental procedure is as follows：(1) prepare simultaneously
Rock sample is installed；(2) install and chemical solution is set from match system：By ready chemical solution injection chemical solution receptacle 49
It is interior；(3) osmotic pressure is loaded：Automatic by profit converter is got to manually, opens low (height) osmotic pressure in tetra- tunnels of profit converter Shang
Switch, that waypoint for controlling the water tank that inject chemical solution is hit " water inlet ", such osmotic pressure water tank, which is just store, has expired chemistry
Solution；(4) object of experiment value is set：Changing into manually for profit converter is automatic, then in computer control system, by confined pressure
Desired value be set as 1MPa, the desired value of osmotic pressure is set as 0.5MPa, and axle pressure desired value is set as 20KN；(5) seepage flow is collected
Liquid：After showing that confined pressure, osmotic pressure, axle pressure reach desired value in computer control system, beginning is oozed from going out to ooze the collection of mouth 18
Flow liquid, then becomes measuring instrument to react the volume of percolating fluid, i.e. average discharge using body.
Obtain following experimental data：
Complete limestone mean flow scale under different pH condition
Test result indicates that：Under different pH value effect, the seepage discharge of limestone is different；Add rock after carbon acid solution
Seepage discharge increased, the permeability increase of intact rock, illustrate that chemical fields have a significant impact to the seepage characteristic of limestone.From
The chemical solution of the present apparatus is fully able to meet experiment to chemical system from match system by good performance from the point of view of experimental result
It is required that, experimental data is accurate and has collected, and very big facility is brought to the experiment of whole multi- scenarios method.
Embodiment 4
As shown in fig. 6, to be tested be fully completed unloads and removed after sample, water is filled to cleaning Water-accumulating water cylinder 50, intelligence is opened
Energy regulating valve c 43 and flow sensor c 44, starts the instrument such as cleaning seepage flow pipeline, chemical solution receptacle and osmotic pressure water tank
Start intelligence high accuracy pH instrument b 46 in device device, cleaning process, intelligence high accuracy pH instrument b is received by computer control system
46 feedback, until pipeline pH value reaches 7, terminates cleaning.
Claims (8)
1. rock couples infiltration experiment device, including computer console, water storage box (36), chemical solution from match system, profit
Converter, balancing gate pit (9), boosting cylinder (13), temperature control system and pipe-line system, water storage box (36) pass through pipeline and chemical solution
Liquid is connected from match system, and chemical solution fills parallel operation by profit from match system and is connected with balancing gate pit (9), in the balancing gate pit (9)
Portion be sequentially provided with from top to bottom pressure sensor (1), upper force-transmitting pole (2), on ooze plate (14), under ooze plate (16) and lower force-transmitting pole
(20), balancing gate pit (9) bottom is provided with boosting cylinder (13), and the profit converter includes flow sensor d (54), high pressure sensor
(55), low pressure sensor (56), high pressure water tank (57), low pressure water tank (58), low-pressure permeability control valve a (59), low pressure are oozed
Saturating control valve b (60), high-pressure osmosis control valve a (61) and high-pressure osmosis control valve b (62), high pressure sensor (55) are located at high pressure
Water tank (57), low pressure sensor (56) is located at low pressure water tank (58), it is characterised in that the temperature control system includes protecting
Warm housing (10), heating controller (5), heater (27), refrigeration controller (6), refrigerator (29), titanium heating tube (52), casting
Aluminium casting stainless steel heating snare (11) and cast aluminium casting stainless steel air dielectric temperature-controlled tube (12), the insulation shell (10) set
Outside in balancing gate pit (9), the titanium heating tube (52) is internal located at water storage box (36), the cast aluminium casting stainless steel heating snare
(11) located at boosting cylinder (13) top, the cast aluminium casting stainless steel air dielectric temperature-controlled tube (12) is located at balancing gate pit (9) inside,
Heating controller (5) and refrigeration controller (6) are located at balancing gate pit (9) outside, with cast aluminium casting stainless steel air dielectric temperature-controlled tube
(12) connect；
Heating controller (5) peripheral hardware heater (27), the heater (27) include temperature sensor b (28), conduction oil (25),
Vacuum plant (26), vacuum gas discharge valve (24) and smoke alarm (23), vacuum plant (26) are internal located at heater (27), lead
Deep fat (25) is internal located at vacuum plant (26), and vacuum gas discharge valve (24) is at the top of vacuum plant (26), the TEMP
Device b (28) inserts the conduction oil (25) of heater (27) internal body from top；
Refrigeration controller (6) peripheral hardware refrigerator (29), the refrigerator (29) includes temperature sensor c (32), refrigeration filling
CaCl2(30) and closure (31), refrigeration filling CaCl2(30) it is internal located at refrigerator (29), the temperature sensor c (32)
The refrigeration filling CaCl of refrigerator (29) internal body is inserted from top2(30)；
Water storage box (36) bottom is provided with outlet pipe, and the outlet pipe is provided with intelligent electromagnetic regulating valve a (39), flow sensing
Device a (40)；The chemical solution includes chemical solution receptacle (49), intelligent electromagnetic regulating valve b (41), flow from match system and passed
Sensor b (42), intelligence high accuracy pH instrument a (45), intelligence high accuracy pH instrument b (46), cleaning Water-accumulating water cylinder (50), intelligent electromagnetic regulation
Valve c (43), flow sensor c (44), intelligent electromagnetic regulating valve d (47) and filter (48)；Chemical solution receptacle (49) and
Cleaning Water-accumulating water cylinder (50) bottom is provided with outlet pipe, the outlet pipe and is respectively equipped with intelligent electromagnetic regulating valve and flow sensor；
Water storage box (36), chemical solution receptacle (49) and cleaning Water-accumulating water cylinder (50) be from left to right connected in successively by bottom outlet pipe into
Enter the main pipeline of profit converter.
2. rock according to claim 1 couples infiltration experiment device, it is characterised in that the insulation shell (10) uses
Split type structure, is made up of two halves, and heat-insulated asbestos and stainless steel coaming plate are set gradually from inside to outside.
3. rock according to claim 1 couples infiltration experiment device, it is characterised in that the heating of the water storage box (36)
Element is titanium heating tube (52), and the temp-controlling element of balancing gate pit (9) is cast aluminium casting stainless steel air dielectric temperature-controlled tube (12), boosting
The temp-controlling element of cylinder (13) is cast aluminium casting stainless steel heating snare (11), and pipe-line system heating and thermal insulation element is Electrothermal ring,
And set gradually heat-insulated asbestos and stainless steel coaming plate from inside to outside on the outside of pipeline.
4. rock according to claim 1 couples infiltration experiment device, it is characterised in that set at the top of the heater (27)
There is smoke alarm (23).
5. rock according to claim 1 couples infiltration experiment device, it is characterised in that cast aluminium casting stainless steel air is situated between
Filling heat-conductive oil, injects CaCl when being heated in matter temperature-controlled tube (12) during cooling2Solution.
6. rock according to claim 1 couples infiltration experiment device, it is characterised in that the rock couples permeability test
Pipe-line system uses the material of acid-alkali-corrosive-resisting in device.
7. the test method of infiltration experiment device is coupled based on the rock described in claim 1, it is characterised in that including following step
Suddenly：
Step 1: silica gel is coated onto into rock sample surface and heat-shrink tube (22) is put, heat-shrink tube (22) is blown with high-temperature hot-air rifle, will
The test specimen (15) made is placed on force-transmitting pole above and below the groove in balancing gate pit (9) upper and lower covers, connection；
Step 2: installing pressure indoor air bleeding valve (7), confined pressure oil-control valve is opened, until thering is oil to emerge in pressure indoor air bleeding valve (7),
Close pressure indoor air bleeding valve (7)；In balancing gate pit (9) external heater (27) and refrigerator (29), temperature sensor a (4) is inserted
Enter balancing gate pit (9) and fix insulating rubber afterwards；
Step 3: heating/cold temperatures are set to heating/refrigeration controller in computer " KingView " system, adjustment heating/
Refrigeration frequency, and initial temperature, steady temperature, final temperature and heating/refrigerating time are set, after being provided with, begin to warm up/
Refrigeration；
Step 4: balancing gate pit (9) are reached after target temperature, start loading confined pressure, axle pressure；Confined pressure, axle pressure are reached after desired value, are entered
Row osmotic pressure is vented, and osmotic pressure is loaded after exhaust；
Step 5: chemical solution is injected into chemical solution from the chemical solution receptacle (49) in match system, chemical solution is flowed through
Chemical solution enters profit converter from after match system, after osmotic pressure water tank is acted in profit converter by osmotic pressure gradually
Penetrate into rock sample；
Step 6: temperature field, chemical fields, stress field are progressively stablized after loading, temperature control system is automatically controlled by computer console
System, chemical solution continue for stable operation from match system and stress system and keep desired value, you can realize that multi- scenarios method is tested.
8. rock according to claim 8 couples the test method of infiltration experiment device, it is characterised in that the chemical solution
The collocation method of liquid, its step is as follows：
Step 1: cleaning high voltage/low voltage water tank：Air in water tank in low pressure and high voltage system is emptied completely
After clean；
Step 2: preparing solute：The running water of half chests is poured into chemical solution receptacle (49), CO is passed through2Gas, makes CO2Gas
Body after running water reaction fully with obtaining carbon acid solution；
Step 3: solute pours osmotic pressure water tank：The carbon acid solution up to target ph is punched into water tank.
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| CN107941676A (en) * | 2017-12-12 | 2018-04-20 | 中国矿业大学 | One kind pollution preparation of soil sample and testing permeability be detecting device integrated and method |
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