CN109001037A - A kind of mud stone drying and watering cycle slaking test equipment that true stress condition is provided - Google Patents

A kind of mud stone drying and watering cycle slaking test equipment that true stress condition is provided Download PDF

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Publication number
CN109001037A
CN109001037A CN201810603760.XA CN201810603760A CN109001037A CN 109001037 A CN109001037 A CN 109001037A CN 201810603760 A CN201810603760 A CN 201810603760A CN 109001037 A CN109001037 A CN 109001037A
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China
Prior art keywords
chamber
cover
mud stone
pressure
watering cycle
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Granted
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CN201810603760.XA
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Chinese (zh)
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CN109001037B (en
Inventor
范志强
唐辉明
谭钦文
温韬
邹宗兴
马俊伟
杨迎铭
宁奕冰
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China University of Geosciences
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China University of Geosciences
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Priority to CN201810603760.XA priority Critical patent/CN109001037B/en
Publication of CN109001037A publication Critical patent/CN109001037A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002Test chambers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0003Steady
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/006Crack, flaws, fracture or rupture
    • G01N2203/0067Fracture or rupture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075Strain-stress relations or elastic constants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/0222Temperature
    • G01N2203/0224Thermal cycling
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/0236Other environments
    • G01N2203/0242With circulation of a fluid
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/025Geometry of the test
    • G01N2203/0256Triaxial, i.e. the forces being applied along three normal axes of the specimen
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/06Indicating or recording means; Sensing means
    • G01N2203/067Parameter measured for estimating the property
    • G01N2203/0676Force, weight, load, energy, speed or acceleration
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/06Indicating or recording means; Sensing means
    • G01N2203/067Parameter measured for estimating the property
    • G01N2203/0682Spatial dimension, e.g. length, area, angle

Abstract

The present invention provides a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition, including test platform, chamber and chamber outer cover, chamber outer cover is on test platform, chamber is set in chamber outer cover and is spliced by six pressure plates, each pressure plate vertically connects a pressure rod one end, each pressure rod other end connects a hydraulic cylinder, and the equal each face of piercing test case outer cover of pressure rod that other each faces of chamber in addition to bottom surface are connected, pressure sensor and displacement sensor are installed on pressure rod, CT scanner is installed above chamber outer cover, rig for testing includes filling pipe and computer, chamber outer cover is accessed in filling pipe one end, the other end connects water pump, computer connects water pump, all hydraulic cylinder, pressure sensor, displacement sensor and CT scanner.Beneficial effects of the present invention: can carry out the drying and watering cycle slaking test and triaxial test under the conditions of true stress, disclose mechanics influence of the bank mud stone in library under the conditions of drying and watering cycle.

Description

A kind of mud stone drying and watering cycle slaking test equipment that true stress condition is provided
Technical field
The present invention relates to Geotechnical Engineering field more particularly to a kind of mud stone drying and watering cycles of offer true stress condition Slaking test equipment.
Background technique
Under the conditions of drying and watering cycle, mud stone typically exhibits the spies such as apparent disintegration in water, corrosion, argillization, dehydration be dry and cracked Property, easily cause corresponding engineering problem, thus cause the extensive concern of people.Mud stone drying and watering cycle slaking test is studied More universal, many scholars carried out correlative study both at home and abroad, not only disclosed mud stone disintegration machine from both macro and micro level Reason, it is also proposed that serial quantizating index is for quantitatively characterizing mud stone mechanism of disintegration and disintegration degree, service engineering practice.At present such Mud stone is cut into bulk first there are a common feature by the operating method of test, then carry out under no confining pressure Drying and watering cycle.
However, making a general survey of the red-bed mudstone Slope Failure event of Badong In Three Gorges Reservoir section it can be found that mud stone library bank is subjected to library Water level cyclical upturn and downturn and be chronically at drying and watering cycle state, disintegration, argillization phenomena such as it is very prominent, due to depositing for initial fissure It can gradually develop to longitudinal direction in, drying and watering cycle, surface layer argillaceous rocks below be caused also to soften by disintegration, and finally can be Deep Weak face is formed under gravity and external environment effect to induce reservoir bank landslide.Show the drying and watering cycle process of library bank mud stone It is not entirely to be carried out under the conditions of no confining pressure.Especially with regard to mud stone reservoir bank landslide from the point of view of, slide strips, slider bed position rock Body necessarily undergoes periodical drying and watering cycle under the conditions of original crustal stress, and gradually weakens, to constitute reservoir stability Unique evolutionary process mechanism.Obviously, existing no lateral confinement drying and watering cycle slaking test method has been difficult to meet library bank mud stone True mechanical condition.
Therefore, it based on the contradiction between current test method and required experimental condition, needs realizing mud stone sample dry and wet On the basis of circulation, a kind of mud stone drying and watering cycle slaking test equipment that true stress condition is provided is designed, it is previous to make up The deficiency of test method.
Summary of the invention
In view of this, the embodiment provides a kind of mud stone drying and watering cycles for providing true stress condition to be disintegrated examination Test equipment.
The embodiment of the present invention provides a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition, including Test platform, chamber and chamber outer cover, the chamber outer cover is the cuboid without bottom surface and lower end is embedded in the test On platform, the chamber is spliced into a cuboid by six pressure plates and constitutes, and the chamber is set to the chamber outer cover The interior and described chamber is opposite one by one with five faces of the chamber outer cover except five faces of bottom surface, outside each pressure plate Surface vertically connects a pressure rod one end, and each pressure rod other end connects a hydraulic cylinder, and the chamber is in addition to bottom surface The pressure rod that is connected of other each faces run through the face of the chamber outer cover opposite with the face, on each pressure rod It is mounted on pressure sensor and displacement sensor, CT scanner, the rig for testing are installed above the chamber outer cover It further include filling pipe and computer, the chamber outer cover is accessed in described filling pipe one end, and the other end connects water pump, described Computer connects the water pump, all hydraulic cylinder, all pressure sensors, all displacement sensors and the CT scanner, institute It states and fills mud stone sample in chamber, the computer controls the water pump to filling the water in the chamber outer cover, the calculating Machine control all hydraulic cylinder presses to the chamber, and all pressure sensors and all displacement sensors monitor each pressurization respectively Pressure and displacement data are simultaneously transmitted to the computer by the pressure of bar and displacement, and the CT scanner is each to mud stone sample Section is scanned and scanning information is transmitted to the computer, and the computer pieces together the scanning information and forms mud stone sample It is disintegrated crack growth figure.
Further, the test platform upper surface is equipped with electrothermal tube and the electrothermal tube is located at the chamber outer cover It is interior.
Further, the pressure plate is equipped with several equally distributed evaporation apertures.
Further, including pedestal, the base upper surface are equipped with several straight sliding rails, are equipped on the sliding rail Advance ball, the test platform are placed on all straight sliding rails by ball contact.
Further, including the chamber shield base is accessed in drainage pipeline, described drainage pipeline one end, and the other end is set There is control valve.
Further, chamber outer cover top surface is equipped with the gas vent of several annular distributions.
Further, four hydraulic cylinders of four side periphery of chamber outer cover are side hydraulic cylinder, each described Side hydraulic cylinder lower end is fixed on a microscope carrier, and all microscope carriers are both secured on the test platform, two opposite described lateral Hydraulic cylinder is orthogonal with other two opposite side hydraulic cylinders.
Further, frame column is fixed on the test platform, the hydraulic cylinder of the chamber top surface connection is fixed on On the frame column.
Further, the test platform is equipped with and keeps a foothold in the chamber outer cover, chamber bottom surface connection Hydraulic cylinder is fixed on described keep a foothold.
Further, the chamber outer cover includes four housings, and the housing includes three cover plates, in three cover plates two-by-two It is mutually connected vertically, and the side edge of the housing and top edge are tenon structure, are connected between four housings by mortise and tenon Connect to form the chamber outer cover, the test platform upper surface be equipped with embedding groove, the chamber outer cover lower end insertion described in The chamber outer cover is sealed in embedding groove.
The technical solution that the embodiment of the present invention provides has the benefit that a kind of offer true stress of the invention The mud stone drying and watering cycle slaking test of condition is equipped, and chamber outer cover provides drying and watering cycle condition, chamber mould for mud stone test The quasi- true stress condition of mud stone, CT scanner carry out real time scan to each section of mud stone sample, record mud stone under each ring number It is disintegrated fragmentation situation and degree, the variation of fragmentation sample size grading, discloses differential swelling after research disintegration, after facilitating research to be disintegrated The variation of sample grain composition.And after drying and watering cycle slaking test, equipment can continue to load to mud stone sample, realize mud stone Triaxial test in circulation disintegrating procedue, cooperation CT scan technology can also disclose crackle of sample during compressive deformation and expand Exhibition rule and broken situation, convenient for explaining triaxial compressions macromechanics of the sample in drying and watering cycle disintegrating procedue from microcosmic point Characteristic, for disclosing reservoir area mud stone bank slope in reservoir water level fluctuation, i.e. mechanical response under the conditions of drying and watering cycle has positive effect.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram for the mud stone drying and watering cycle slaking test equipment for providing true stress condition of the present invention;
Fig. 2 is that a kind of A-A that the mud stone drying and watering cycle slaking test for providing true stress condition is equipped in Fig. 1 of the present invention is cutd open View;
Fig. 3 is that a kind of B-B that the mud stone drying and watering cycle slaking test for providing true stress condition is equipped in Fig. 1 of the present invention is cutd open View;
Fig. 4 is that a kind of C-C that the mud stone drying and watering cycle slaking test for providing true stress condition is equipped in Fig. 1 of the present invention is cutd open View;
Fig. 5 is the schematic diagram of chamber outer cover 16 in Fig. 1.
In figure: 1-CT scanner, 2- axial liquid cylinder pressure, 3- pressure rod, 4- frame column, 5- pressure plate, 6- side hydraulic cylinder, 7- displacement sensor, 8- microscope carrier, 9- electrothermal tube, 10- is straight sliding rail, 11- drainage pipeline, 12- control valve, 13- chamber, 14- Pressure sensor, 15- pedestal, 16- chamber outer cover, the vertical bearing of 17-, 18- advance ball, 19- test platform, 20- water filling Pipeline, 21- computer, 22- water pump, 23- evaporation apertures, 24- keep a foothold, 25- gas vent, 26- housing, the vertical tenon outside plate of 27-, 28- Vertical tenon inner panel, the horizontal tenon bottom plate of 29-, the horizontal tenon cover board of 30-, the side 31- are to axis hole, the vertical axis hole of 32-.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is further described.
FIG. 1 to FIG. 5 is please referred to, provides the mud stone drying and watering cycle of true stress condition the embodiment provides a kind of Slaking test equipment, including pedestal 15 and test platform 19, chamber 5 and chamber outer cover 16.
15 upper surface of pedestal is equipped with several straight sliding rails 10, is equipped with advance ball 18, institute on the sliding rail It states test platform 19 to be placed on all straight sliding rails 10 by ball contact, is fixed with frame column 4 on the test platform 19, Vertical bearing 17 is installed, the test platform 19, which is equipped with, keeps a foothold 24 on the frame column 4.
The chamber outer cover 16 is the cuboid without bottom face and is embedded on the test platform 19, outside the chamber Cover 16 includes four housings 26, and 26 top surface of housing is equipped with the gas vent 25 of several annular distributions, and the housing 26 includes three covers Plate is mutually connected vertically two-by-two in three cover plates, and the side edge of the housing 26 is equipped in vertical tenon outside plate 27 or vertical tenon Plate 28 is equipped with semicircle orifice, 26 upper surface of housing in the middle part of 27 middle part of vertical tenon outside plate and the vertical tenon inner panel 28 Edge be equipped with horizontal tenon cover board 30 and horizontal tenon bottom plate 29, the inner one end of the horizontal tenon cover board 30 and the horizontal tenon bottom The inner one end of plate 29 is equipped with circular hole, and vertical direction passes through the vertical tenon outside plate 27 and institute between adjacent two housing 26 It states the vertical cooperation tenon connection of tenon inner panel 28 and two semicircle orifices merges into lateral axis hole 27, water between two housing 26 Square cooperate tenon connection to by the horizontal tenon cover board 30 and the horizontal tenon bottom plate 29, passes through between four housings 26 Tenon connection forms the chamber outer cover 16 and four circular holes in 16 top surface of chamber outer cover merge into vertical axis Hole 32,19 upper surface of test platform are equipped with embedding groove, and 16 lower end of chamber outer cover is embedded in institute in the embedding groove State the sealing of chamber outer cover 16.
The chamber 13 is spliced into a cuboid by six pressure plates 5 and constitutes, and the pressure plate 5 is equipped with several uniform points The evaporation apertures 23 of cloth, the chamber 13 is set in the chamber outer cover 16 and the chamber 13 removes five faces of bottom surface Opposite one by one with five faces of the chamber outer cover 16, each 5 outer surface of pressure plate vertically connects a pressure rod 3 one The other end at end, the pressure rod 3 of 13 bottom of the chamber connection connects an axial liquid cylinder pressure 2 and the axial liquid cylinder pressure 2 is fixed Keep a foothold on 24 in described, other each 3 other ends of pressure rod pass through the chamber outer cover 16 lateral axis hole 31 or Vertical axis hole 32 simultaneously connects a hydraulic cylinder, and the smooth rubber circle for reinforcing sealing effect, each pressurization are equipped between rod aperture Pressure sensor 14 and displacement sensor 7 are mounted on bar 3, the four of 16 4 side periphery of chamber outer cover are described hydraulic Cylinder is side hydraulic cylinder 6, and each 6 lower end of side hydraulic cylinder is fixed on a microscope carrier 8, and all microscope carriers 8 are both secured to described On test platform 19, two opposite side hydraulic cylinders 6 are orthogonal with other two opposite side hydraulic cylinders 6, the examination The hydraulic cylinder of 13 top surface of tryoff connection is axial liquid cylinder pressure 2 and the axial liquid cylinder pressure 2 is fixed on the frame column 4, the axial direction The pressure rod 3 that hydraulic cylinder 2 is connected passes through the vertical bearing 17, and the top of the frame column 4 is equipped with CT scanner 1, institute It states 19 upper surface of test platform in chamber outer cover 16 and is equipped with O-shaped electrothermal tube, be mainly used for heating and improve the chamber Temperature in 13 accelerates the rate of drying of mud stone sample.
The rig for testing further includes filling pipe 20, drainage pipeline 11 and computer 21, described 20 one end of filling pipe The chamber outer cover 16 is accessed, the other end connects water pump 22, and the chamber outer cover 16 is accessed in described 11 one end of drainage pipeline Bottom, the other end are equipped with control valve 12.
The computer 21 connects the water pump 22, all hydraulic cylinder, all pressure sensors 14, all displacement sensors 7 and the CT scanner 1, mud stone sample is placed in the chamber 13, and the computer 21 controls the water pump to the examination Water filling in tryoff outer cover 16, the electrothermal tube 9 carry out heating heating to chamber 13, and the computer 21 controls all hydraulic cylinder Press to the mud stone sample, all pressure sensors 14 and all displacement sensors 7 monitor respectively each pressure rod 3 pressure and It is displaced and pressure and displacement data is transmitted to the computer 21, the experiment porch 19 is sliding on the straight sliding rail 10 It is dynamic, it is ensured that each vertical cross-section of mud stone sample can be scanned by the CT scanner 1, and scanning information can be transmitted to the meter Calculation machine 21, the computer 21 piece together the scanning information and form mud stone sample disintegration crack growth figure.
The basic process for equipping progress wetting-drying test using above-mentioned mud stone drying and watering cycle slaking test is as follows:
(1) mud stone sample and dress sample are made
Mud stone being cut according to 3 size of pressure plate, the mud stone sample to match with pressure plate being made, mud stone sample is placed in On the pressure plate 3 of bottom, it is then turned on computer 21 and manipulates each hydraulic cylinder, select rate control, make the pressure plate 3 positioned at top Be located at lateral pressurization plate 3 slowly close to mud stone specimen surface, when pressure plate will be close to mud stone specimen surface, then calculate Machine 21 controls hydraulic cylinder and slows down 3 travel speed of pressure plate, and the moment observes all pressure sensors 14 and feeds back to computer 21 Monitoring data.When pressure monitoring value is more than zero, illustrates that pressure plate 3 is in contact with specimen surface, pass through computer at this time 21, which issue instruction stopping hydraulic cylinder, continues to pressurize, and remains stationary pressure plate.
(2) mud stone sample loads and installs chamber
Scheduled load is selected, all axial liquid cylinder pressures 2 and all side hydraulic cylinders 6 are instructed by computer 21 Property manipulation, using Stress Control mode make top pressure plate 3 and side pressure plate 3 respectively to sample carry out axially and laterally Load, until monitoring numerical value that all pressure sensors 14 feed back to computer 21 is specified pressure value, and sustained loading Do not change.Then splice chamber outer cover 16 and chamber outer cover 16 is embedded in test platform formation leakproofness and preferably test sky Between.
(3) wetting-drying test and CT scan
It is denoted as first with rig for testing measurement mud stone sample standard duration needed for water body complete wetting of the invention T1, and required standard duration is completely dried by wet sample at a certain temperature and is denoted as T2, referring next to standard duration, formally open Beginning wetting-drying test.Water pump 22 is controlled by computer 21 first, water is pumped into chamber outer cover 16, water level need to cover mud Rock sample top surface is more than T1 when infiltrating duration, i.e., the control valve 12 on openable drainage pipeline 11, by urine dilution test case outer cover 16, electrothermal tube 9 is then transferred to assigned temperature, the wet sample of mud stone can be carried out for when T2 drying.After drying, CT can be opened Scanner 1, the back-and-forth motion by test platform 19 along straight sliding rail 10 position, and can make each section of mud stone sample can be by CT 1 real time scan of scanner, information can piece together to form three-dimensional mud stone sample disintegration crack growth figure after feeding back to computer 21, Mechanism of disintegration is disclosed, and facilitates and carries out disintegration grain composition analysis.Repeat the step such as above-mentioned water filling, draining, drying, CT scan Suddenly, drying and watering cycle slaking test research can be carried out to mud stone.
(4) triaxial test and CT scan
As the expansion of drying and watering cycle slaking test, the present invention can also carry out three axis examination of mud stone during drying and watering cycle Research is tested, i.e., after each drying and watering cycle, maintains mud stone sample lateral load constant, controls the axial liquid cylinder pressure 2 at top, Select rate control, continue to sample carry out it is axially loaded, until sample destroys completely.During triaxial test, by all Record axis pressure, axial displacement, lateral displacement, the data such as side pressure feed back to meter in real time for pressure sensor 14 and all displacement sensors 7 Calculation machine can form the pressure-deformation curve during triaxial test, reflect the mechanical property of sample.By to different dry and wets Mud stone sample under cycle-index carries out triaxial test, can study influence of the drying and watering cycle condition for mud stone mechanical property. Crackle of the 1 each section of real time scan sample of CT scanner during compressive deformation can also be used during triaxial test to expand Exhibition rule and broken situation explain triaxial compressions macromechanics of the mud stone sample in drying and watering cycle disintegrating procedue from microcosmic point Characteristic.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. it is a kind of provide true stress condition mud stone drying and watering cycle slaking test equipment, it is characterised in that: including test platform, Chamber and chamber outer cover, the chamber outer cover is the cuboid without bottom surface and lower end is embedded on the test platform, institute It states chamber and is spliced into a cuboid by six pressure plates and constitute, the chamber is set in the chamber outer cover and the examination Tryoff is opposite one by one with five faces of the chamber outer cover except five faces of bottom surface, and each pressure plate outer surface vertically connects A pressure rod one end is connect, each pressure rod other end connects a hydraulic cylinder, and other each faces of the chamber in addition to bottom surface The pressure rod connected runs through the face of the chamber outer cover opposite with the face, is mounted on pressure on each pressure rod Force snesor and displacement sensor, the chamber outer cover top are equipped with CT scanner, and the rig for testing further includes water filling The chamber outer cover is accessed in pipeline and computer, described filling pipe one end, and the other end connects water pump, the computer connection The water pump, all hydraulic cylinder, all pressure sensors, all displacement sensors and the CT scanner, in the chamber Mud stone sample is filled, the computer controls the water pump to filling the water in the chamber outer cover, and the computer control is all Hydraulic cylinder presses to the chamber, all pressure sensors and all displacement sensors monitor respectively each pressure rod pressure and It is displaced and pressure and displacement data is transmitted to the computer, the CT scanner sweeps each section of mud stone sample It retouches and scanning information is transmitted to the computer, the computer pieces together the scanning information and forms mud stone sample disintegration crackle hair Zhan Tu.
2. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: the test platform upper surface is equipped with electrothermal tube and the electrothermal tube is located in the chamber outer cover.
3. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: the pressure plate is equipped with several equally distributed evaporation apertures.
4. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature It is: further includes pedestal, the base upper surface is equipped with several straight sliding rails, advance ball is installed on the sliding rail, The test platform is placed on all straight sliding rails by ball contact.
5. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature It is: further includes drainage pipeline, the chamber shield base is accessed in described drainage pipeline one end, and the other end is equipped with control valve.
6. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: chamber outer cover top surface is equipped with the gas vent of several annular distributions.
7. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: four hydraulic cylinders of four side periphery of chamber outer cover are side hydraulic cylinder, under each side hydraulic cylinder End be fixed on a microscope carrier, all microscope carriers are both secured on the test platform, two opposite side hydraulic cylinders in addition Two opposite side hydraulic cylinders are orthogonal.
8. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature It is: is fixed with frame column on the test platform, the hydraulic cylinder of the chamber top surface connection is fixed on the frame column.
9. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: the test platform is equipped with and keeps a foothold in the chamber outer cover, and the hydraulic cylinder of the chamber bottom surface connection is fixed on It is described keep a foothold on.
10. a kind of mud stone drying and watering cycle slaking test equipment for providing true stress condition as described in claim 1, feature Be: the chamber outer cover includes four housings, and the housing includes three cover plates, the company of being mutually perpendicular to two-by-two in three cover plates It connects, and the side edge of the housing and top edge are tenon structure, are formed between four housings by tenon connection described Chamber outer cover, the test platform upper surface are equipped with embedding groove, and chamber outer cover lower end is embedded in the embedding groove will The chamber outer cover sealing.
CN201810603760.XA 2018-06-12 2018-06-12 Mud rock dry-wet cycle disintegration test equipment providing real stress condition Active CN109001037B (en)

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Application Number Priority Date Filing Date Title
CN201810603760.XA CN109001037B (en) 2018-06-12 2018-06-12 Mud rock dry-wet cycle disintegration test equipment providing real stress condition

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Application Number Priority Date Filing Date Title
CN201810603760.XA CN109001037B (en) 2018-06-12 2018-06-12 Mud rock dry-wet cycle disintegration test equipment providing real stress condition

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CN109001037A true CN109001037A (en) 2018-12-14
CN109001037B CN109001037B (en) 2021-01-15

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