CN104007013B - Chemical solution seepage flow test device under rock Single Fracture different temperatures - Google Patents
Chemical solution seepage flow test device under rock Single Fracture different temperatures Download PDFInfo
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- CN104007013B CN104007013B CN201310137965.0A CN201310137965A CN104007013B CN 104007013 B CN104007013 B CN 104007013B CN 201310137965 A CN201310137965 A CN 201310137965A CN 104007013 B CN104007013 B CN 104007013B
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- 230000035699 permeability Effects 0.000 claims abstract description 13
- 230000035515 penetration Effects 0.000 claims abstract description 11
- 239000012774 insulation material Substances 0.000 claims abstract description 6
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Abstract
The present invention relates to chemical solution seepage flow test device under a kind of rock Single Fracture different temperatures, including specimen appliance system, axial pressure system, confined pressure system, chemical solution pressure loading system, servo-control system and data collecting system, the specimen appliance system includes test specimen, columned heat-shrink tube and cylinder rigid cushion block, one end of the stiffness bearer is provided with permeability hole, annular infiltration groove and radial penetration groove, the chemical solution pressure loading system is provided with heater, heater includes heater and temperature sensor, heater is arranged on the solution line of specimen appliance system side, temperature sensor is provided with solution line between heater and specimen appliance system.To improve experiment accuracy, the tube wall of the solution line between heater and specimen appliance system is provided with insulation material, and heater uses ceramic heater.
Description
Technical field
The present invention relates to chemical solution seepage flow test device under a kind of rock Single Fracture different temperatures, the equipment is suitable to grind
Study carefully different temperatures chemical solution and ooze the chemical attack-stress coupling effect occurred during rock Single Fracture.
Background technology
Rock cranny generally dominates the migration direction of underground water, is the main study subject of seepage field.Simultaneously as receiving
The surface reaction mechanism in mineral dissolution is controlled, the water rock chemical action contact free face that joint fissure is formed is also anti-geochemistry
The main generation place answered.Therefore, the presence of rock cranny greatly affected the balance and underground water of subterranean body mechanics
The carrying out of migration and geochemical reaction in seepage field.In view of the diversity of fissure-plane environmental effect, to fissure-plane many
The research of mechanism of Evolution has important basic meaning under the coupling of field.
There are some researches show mechanical function can make fissure-plane produce densification or sliding, thus cause infiltrative change.
Meanwhile, chemical reaction can make fracture surface material dissolving occur or precipitate, and will cause the change of seepage channel.And work as external force and ooze
Stream is acted on when on fissure-plane simultaneously, and the change of its penetration property is subject to mechanical function and chemical reaction co- controlling.Due to water
Rock chemical attack and temperature have an extremely close relation, the chemical attack that the chemical solution of different temperatures occurs by rock fracture
Intensity it is different.Deform there is presently no rock fracture chemical attack, crack under different confined pressures, different temperatures chemical solution
Experimental rig.
The content of the invention
It is an object of the invention to provide chemical solution seepage flow test device under a kind of rock Single Fracture different temperatures, can be with
Under realizing different chemical solution temperature and different confined pressures, the chemical attack of rock Single Fracture, the experiment of crack deformation.
The object of the present invention is achieved like this：Chemical solution seepage tests dress under a kind of rock Single Fracture different temperatures
Put, including specimen appliance system, axial pressure system, confined pressure system, chemical solution pressure loading system, servo-control system and
Data collecting system, the specimen appliance system includes test specimen, columned heat-shrink tube and with permeability hole, annular infiltration groove
With the cylinder rigid cushion block of Radial Flow Through Porous Media groove, heat-shrink tube is linked on test specimen, and one end of the stiffness bearer is provided with oozes
Open-work, annular infiltration groove and radial penetration groove；Permeability hole, annular infiltration groove and radial penetration groove are interconnected；Institute
State chemical solution pressure loading system and be provided with heater, heater includes heater and temperature sensor, and heater sets
Put on the solution line of specimen appliance system side, temperature is provided with the solution line between heater and specimen appliance system
Degree sensor.
To realize products perfection, improving, improve combination property of the invention, its further step is heater and test specimen
The tube wall of the solution line between apparatus system is provided with insulation material；Heater is ceramic heater.
The present invention is provided with the technical scheme of heater using chemical solution pressure loading system, solves current rock
Single Fracture chemical solution seepage flow test device can not realize different temperatures chemical solution to rock fracture chemical attack, crack deformation
The defect of experiment.
The beneficial effect that produces compared with the prior art of the present invention is：
1st, chemical solution seepage flow test device increases heater under rock Single Fracture different temperatures, can study different temperatures
Rock fracture chemical attack, crack deformation test under chemical solution seepage effect；
2nd, one end of the stiffness bearer of experimental rig is provided with permeability hole, annular infiltration groove and radial penetration groove, changes
Learn solution osmotic effect more preferable；
3rd, make simple, easy for installation, for scientific research provides facility.
The invention will be further described with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of chemical solution seepage flow test device under rock Single Fracture different temperatures of the present invention.
Fig. 2 is the stiffness bearer structural representation of rock Single Fracture chemical solution seepage flow test device of the present invention.
In figure：1st, load cylinder, 2, servomotor I, 3, reductor I, 4, worm drive secondary I, 5, piston I, 6, heat-shrink tube,
7th, stiffness bearer, 8, servomotor II, 9, tachometer generator, 10, reductor II, 11, worm drive secondary II, 12, piston I I,
13rd, fissure-plane, 14, seepage flow tap pipe, 15, boiling flask, 16, electronic balance, 17, computer controller, 18, cylinder body I, 19,
Cylinder body I I, 20, servomotor III, 21, flute profile belt wheel reducing gear, 22, ball-screw transmission mechanism, 23, moving beam, 24,
Test specimen, 25, experiment force snesor, 26, loading axis, 27, heater, 28, solution line, 29, insulation material, 30, TEMP
Device, 31, flow sensor, 32, shaft position sensor, 33, radial displacement transducer, 34, data wire I, 35, data wire II,
36th, valve I, 37, valve II, 38, valve III, 39, valve IV, 40, valve V, 41, valve VI, 42, permeability hole, 43, annular
Infiltration groove, 44, radial penetration groove.
Specific embodiment
Referring to accompanying drawing 1 and accompanying drawing 2, chemical solution seepage flow test device under a kind of rock Single Fracture different temperatures, including examination
Part apparatus system, axial pressure system, confined pressure system, chemical solution pressure loading system, servo-control system and data acquisition
System, the specimen appliance system includes test specimen 24, columned heat-shrink tube 6 and with permeability hole 42, annular infiltration groove 43
With the cylinder rigid cushion block 7 of radial penetration groove 44, heat-shrink tube 6 is linked on test specimen 24, and one end of the stiffness bearer 7 sets
It is equipped with permeability hole 42, annular infiltration groove 43 and radial penetration groove 44；Wherein permeability hole 42, annular permeate groove 43 and radial direction
Infiltration groove 44 is interconnected；The chemical solution pressure loading system is provided with heater, and heater includes heater
27 and temperature sensor 30, heater 27 is arranged on the solution line 28 of specimen appliance system side, heater 27 and test specimen
Temperature sensor 30 is provided with solution line 28 between apparatus system.To improve experiment accuracy, heater 27 and test specimen
The tube wall of the solution line 28 between apparatus system is provided with insulation material 29, the optimal use ceramic heater of heater 27.It is molten
Liquid pipe road 28, stiffness bearer 7, piston I I12 are made with corrosion resistant stainless steel material.
Specimen appliance system includes columned heat-shrink tube 6 and is oozed with permeability hole 42, annular infiltration groove 43 and radial direction
The cylinder rigid cushion block 7 of saturating groove 44, the Single Fracture sillar that test specimen 24 is carries out Brazilian splitting by cylinder rock sample
One is produced parallel to axis direction, the artificial coarse fissure-plane 13 through whole sample, after cleavage sample is closed up, pyrocondensation is used
Pipe 6 is entangled, and is placed between upper and lower two stiffness bearers 7.
Axle pressure loading system includes servomotor III20, flute profile belt wheel reducing gear 21, ball-screw transmission mechanism 22.
Servomotor III20 drives ball-screw transmission mechanism 22, the movement on ball-screw by flute profile belt wheel reducing gear 21
Crossbeam 23 applies test force by loading axis 26 to test specimen 24, and the experiment force snesor 25 on moving beam 23 examines the size of power
Measure and come and be sent in computer controller 17, moving beam 23 by pressure to loading axis 26 when, loading axis 26 acts on top
Stiffness bearer 7, applies axle power to test specimen 24.
Confined pressure system includes three axle self-balancing balancing gate pits and confined pressure loading system.Specimen appliance system is placed in three axle self-balancings
Balancing gate pit, three axle self-balancing balancing gate pits are connected with confined pressure loading system by oil pipe, and its effect is to apply confined pressure to test specimen 24, is enclosed
The loading of pressure is realized by load cylinder 1, and the instruction that servomotor I2 sends according to Testing Software is rotated by reductor
I3 drives the motion of worm drive secondary I4 to drive the linear motion of piston I 5 to adjust in-oil cylinder pressure, installed in load cylinder 1
The pressure sensor detection oil pressure of oil outlet end, is sent in computer controller 17, measurement signal of the computer controller 17 pressure
Processed, and be compared with the pressure data for setting, then provided deviation correcting signal, made the pressure value of applying and the pressure for setting
Force value reaches unanimity.
Cylinder body I18, cylinder body I I19 in chemical solution pressure loading system, can configure different chemical solutions, heater 27
To in solution line 28 chemical solution heating, heating-up temperature be normal temperature to 100 DEG C, by computer controller 17 control heater
27 temperature, and pipeline is carried out into isothermal holding with insulation material 29, servomotor II8 is coaxially furnished with tachometer generator 9, root
The instruction sent according to the Testing Software of computer controller 17 is rotated, and by reductor II10 V belt translation worm drive secondary II11, is made
Piston I I12 is moved along a straight line, and realizes that solution pressure is loaded.Infiltration in the stiffness bearer 7 that solution passes through specimen appliance system
Hole 42 is flowed along annular infiltration groove 43 and radial penetration groove 44, flows through the fissure-plane 13 of test specimen 24, and by test specimen 24
The discharge solution of seepage flow tap pipe 14 on portion's stiffness bearer 7, is collected with boiling flask 15 and is placed on electronic balance 16, electronics
Balance 16 is connected with computer controller 17, and collection penetrates the flow of rock fracture, and the flow through rock fracture can also lead to
The piston stroke or flowmeter for crossing hole Water hydraulic static pressure loading part are obtained.
Data collecting system include liquid inventory and pressure, the axial deformation of test specimen 24 and radial deformation, confined pressure and axle pressure,
The collection of the data such as solution temperature, by flow sensor 31 and tachometer generator 9 and the electricity of chemical solution pressure loading system
Brain controller 17 is connected, Real-time Collection liquid inventory and pressure；By shaft position sensor 32 and radial displacement transducer 33
It is connected with computer controller 17, the axial deformation of Real-time Collection test specimen 24 and radial deformation；The experiment of loading system is pressed by axle
Force snesor 25 is connected with computer controller 17, Real-time Collection axle pressure；Pressure sensor and computer control by confined pressure system
Device processed 17 is connected, Real-time Collection confined pressure；It is connected with computer controller 17 by temperature sensor 30, Real-time Collection flows into fissure-plane
13 solution temperature.In process of the test, computer real time record liquid inventory and pressure, the axial deformation of test specimen 24 and radial direction become
Shape, confined pressure and axle pressure, solution temperature curve.
Chemical solution seepage flow test device embodiment under rock Single Fracture different temperatures of the present invention：
(1) by splitting after cylindrical rock close up, form rock sample test piece 24, the size of test specimen 24 is diameter 50mm, high
Degree 100mm, is entangled test specimen 24 with the heat-shrink tube 6 resistant to chemical etching that a diameter of 60mm, length are 150mm, will with hair dryer
Heat-shrink tube 6 is heated, it is ensured that heat-shrink tube 6 and the perimetral tight of test specimen 24 are contacted, and are disposed respectively with permeability hole in the upper and lower side of test specimen 24
42nd, the cylinder rigid cushion block 7 of annular infiltration groove 43 and radial penetration groove 44, the size of stiffness bearer 7 is diameter 50mm, thick
5mm, installs radial displacement transducer 33, to measure the radial deformation of test specimen 24, two at the middle part of heat-shrink tube 6 of the overcoat of test specimen 24
Individual stiffness bearer 7 sets shaft position sensor 32, to measure the axial deformation of test specimen 24, by radial displacement transducer 33 and axle
Connected by data wire I34, data wire II35 and computer controller 17 respectively to displacement transducer 32.
(2) pipeline of Surrounding Rock System, solution pressure loading system and chemical solution temperature control system is connected, in row
Be collected in the liquid occurred after water rock chemical action in boiling flask 15 by liquid mouthful, and boiling flask 15 is placed on electronic balance 16,
By each servomotor, pressure sensor, experiment force snesor 25, temperature sensor 30, flow sensor 31, axial displacement sensing
Device 32, radial displacement transducer 33, electronic balance 16 are connected with computer controller 17 respectively.
(3) the servomotor III20 in axle pressure loading system drives ball-screw to pass by flute profile belt wheel reducing gear 21
Motivation structure 22, the moving beam 23 on ball-screw transmission mechanism 22 applies axle pressure to test specimen 24；When confined pressure loading system exists
When the oil sources of load cylinder 1 is sufficient, valve I36 is closed, open valve II37, moved along a straight line by piston I 5 and test specimen 24 is applied to enclose
Pressure.
(4) when solution is sufficient in chemical solution loader, valve III38 and valve IV39 is closed, opens valve V40,
Servomotor II8 drives worm drive secondary II11 by reductor II10, the piston I I12 of loader is moved along a straight line, real
Existing solution pressure loading, solution temperature is measured by temperature sensor 30, when solution pressure and temperature reach design load, is beaten
Valve opening door VI41, the solution with uniform temperature is by inlet opening and with permeability hole 42, annular infiltration groove 43 and radially oozes
The stiffness bearer 7 of saturating groove 44, penetrates into the fissure-plane 13 of test specimen 24, and is discharged by seepage flow tap pipe 14 residual after Water-rock interaction
Liquid, the raffinate after Water-rock interaction is collected by boiling flask 15, and electronic balance 16 measures raffinate weight, weighs intervals
The quality of the raffinate for being flowed out, is converted into flow velocity.A bottle seepage exit raffinate is collected at regular intervals using many ginsengs
Number Water Test Kits carries out the Concentration Testing of specific ion.
(4) real time data to data collecting system is arranged, and can obtain chemical solution under different temperatures, different pressures
Oozed the mechanical characteristic and the change rule of solution chemistry composition of the deformation of test specimen 24 produced during rock fracture face 13.
Claims (1)
1. chemical solution seepage flow test device under a kind of rock Single Fracture different temperatures, including specimen appliance system, axial pressure
System, confined pressure system, chemical solution pressure loading system, servo-control system and data collecting system, the specimen appliance system
System includes test specimen (24), columned heat-shrink tube (6) and cylinder rigid cushion block (7), and heat-shrink tube (6) is linked in test specimen (24)
On, it is characterised in that one end of the stiffness bearer (7) is provided with permeability hole (42), annular infiltration groove (43) and radially oozes
Saturating groove (44)；Permeability hole (42), annular infiltration groove (43) and radial penetration groove (44) are interconnected；The chemical solution
Pressure-loaded system is provided with heater, and heater includes heater (27) and temperature sensor (30), heater (27)
It is arranged on the solution line of specimen appliance system side (28), the solution line between heater (27) and specimen appliance system
(28) temperature sensor (30) is provided with；
Wherein, the tube wall of the solution line (28) between heater (27) and specimen appliance system is provided with insulation material (29)；
The heater (27) is ceramic heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310137965.0A CN104007013B (en) | 2013-04-22 | 2013-04-22 | Chemical solution seepage flow test device under rock Single Fracture different temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137965.0A CN104007013B (en) | 2013-04-22 | 2013-04-22 | Chemical solution seepage flow test device under rock Single Fracture different temperatures |
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| CN104007013A CN104007013A (en) | 2014-08-27 |
| CN104007013B true CN104007013B (en) | 2017-07-11 |
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| CN103076270B (en) * | 2013-01-29 | 2014-12-10 | 大连海事大学 | Toroidal fissured rock sample, MHC coupled seepage experimental device of sample and use method of device |
| CN203191260U (en) * | 2013-04-22 | 2013-09-11 | 湖南科技大学 | Rock single fracture chemical solution seepage test device |
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