CN206020194U - The pilot system of THMC couplings during consideration rock joint shear - Google Patents
The pilot system of THMC couplings during consideration rock joint shear Download PDFInfo
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- CN206020194U CN206020194U CN201620937123.2U CN201620937123U CN206020194U CN 206020194 U CN206020194 U CN 206020194U CN 201620937123 U CN201620937123 U CN 201620937123U CN 206020194 U CN206020194 U CN 206020194U
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Abstract
The pilot system of THMC couplings during a kind of consideration rock joint shear, including main frame and loading structure, loading servo-control system, seepage flow shear box and sealing device, high-low-temperature environmental testing case and seepage flow servo-control system, main frame and loading structure include the orthogonal normal direction loading frame with independent loads ability and horizontal addload framework, and loading servo-control system is used for the hydraulic loaded servo-control system and the motor servo loading system for rheological test of conventional test；Seepage flow shear box and sealing device are located in high-low-temperature environmental testing case, and the motion end of normal direction loading frame and horizontal addload framework is contradicted through high-low-temperature environmental testing case with seepage flow shear box and sealing device；Loading servo-control system is connected with normal direction loading frame and horizontal addload framework respectively.The utility model bears the test and analysis that osmotic pressure is higher, effectively realize under THMC couplings.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, is related to a kind of pilot system of complex condition, more particularly to a kind of
Consideration thermodynamics, hydraulics, mechanics, chemistry (Thermal-Hydrological-Mechanical- in shear history
Chemical:THMC) the rock joint pilot system of multi- scenarios method effect.
Background technology
Nuclear waste disposal, natural gas and CO2The large-sized rock mass such as underground storage, geothermal utilization, deep water conservancy and mining engineering
Engineering is generally built in jointed rock mass, and the multi- scenarios method characteristic of the lower underground jointed rock mass of hyperosmosis power effect is to be related to such
The whether safe key factor of underground engineering, basic problem and forward position focus that also always rock mechanics circle is studied, and consider
The rock joint shear pilot system of THMC couplings is to disclose the important means of this science basic problem.
Therefore, shear strength characteristics and deformation of the deep understanding and cognition joint of science under the conditions of high/low temperature, seepage flow
Percolation law and chemical reaction in property, shear history, set up criterion of strength of the joint under the conditions of seepage flow, constitutive relation and
Full shear-seepage Coupling Constitutive, develops and " considers the test system of THMC couplings during rock joint shear
System " is very necessary.
The correlative study of forefathers is made a general survey of, the research that (1) carries out at present does not also consider temperature and chemical reaction to shearing seepage flow
Characteristic influences each other；(2) test result that carries out at present is mostly focused under relatively low seepage pressure, and under higher seepage pressure
The seepage tests carried out during joint shearing is reached after its peak value and research or blank；(3) under the conditions of constant stiffness
Coupled shear-flow test achievement is less, it is difficult to truly reflects rock joint in nature and really shears mechanical characteristic；
(4) under action of long-term load, the coupled characteristic research of rock joint is still in blank.Scientific instrument carry out scientific research
Basic means, experimental technique and the development of scientific research and testing instrument, will push directly on the innovation and development of scientific research, and this is this reality
With new starting point.
Due to the limitation that the restriction of experimental condition, particularly seepage flow seal means are present, the country is with regard to rock joint coupling
The testing equipment for closing test also compares shortage, only Wuhan rock-soil mechanics research institute, Wuhan University, University Of Science and Technology Of Shandong and Beijing duty
The colleges and universities such as industry technical college are developed in succession, but the osmotic pressure that the shear box of existing device can bear often compares
Low, also fail to the effect for considering temperature and chemical reaction in a device.Rock forming mineral can produce dissolving in seepage field and precipitate
Deng chemical reaction, the configuration of surface and mechanical property of rock joint is directly affected, its reaction rate receives the tremendous influence of temperature again,
It is contemplated that the coupling of these factors is the Main way that will study from now on.
Content of the invention
In order to overcome existing testing equipment bear that osmotic pressure is relatively low, fail to consider temperature and the effect of chemical reaction,
Cannot realize the deficiency of the test and analysis under THMC couplings, the utility model provide one kind bear osmotic pressure higher,
The test of the consideration rock joint shear of test and analysis THMC coupling under during THMC coupling is effectively realized
System.
The utility model solves the technical scheme adopted by its technical problem：
The pilot system of THMC couplings during a kind of consideration rock joint shear, including main frame and loading structure,
Loading servo-control system, seepage flow shear box and sealing device, high-low-temperature environmental testing case and seepage flow servo-control system, described
Main frame and loading structure include the orthogonal normal direction loading frame with independent loads ability and horizontal addload framework, described
Normal direction loading frame is the mechanism for loading normal force to test specimen, and the horizontal addload framework is to shear for loading to test specimen
The mechanism of power；The loading servo-control system is used for the hydraulic loaded servo-control system of conventional test and is used for rheological test
Motor servo loading system；
The seepage flow shear box and sealing device include rigid shear box, upper holder block, lower lock block and are used in shear history
In Texturized with the increase of the shear displacemant caulking gum piece, rock sample is placed in rigid shear box, the rock examination
Part is respectively placed with upper holder block and lower lock block in shear direction both sides, leaves described for placing between the upper holder block and lower lock block
The space of caulking gum piece, the upper end of the caulking gum piece are connected with upper holder block, the lower end of the caulking gum piece with push
Block connects；Form hollow reservoir chamber between the caulking gum piece and the fracture seepage face of the rock sample, side hollow
Reservoir chamber is connected with water inlet, and the hollow reservoir chamber of opposite side is connected with delivery port；
The seepage flow servo-control system is included for controlling the infiltration hydraulic pressure control system of the hydraulic pressure of delivery port and water inlet
System and for controlling the seepage velocity control system of the flow velocity of delivery port and water inlet；
The seepage flow shear box and sealing device are located in the high-low-temperature environmental testing case, the normal direction loading frame and
The motion end of horizontal addload framework is contradicted through the high-low-temperature environmental testing case with the seepage flow shear box and sealing device；Institute
State loading servo-control system to be connected with the normal direction loading frame and horizontal addload framework respectively.
Further, the side in the crack of the rock sample is provided with for preventing water from the lateral seal group for laterally flowing out
Part.
Further, the lateral seal component includes rigid seal bar and silica gel sealing layer, on the rigid seal bar
Under be arranged symmetrically, the rigid seal bar is contradicted on the rock sample, the inside arrangement institute of the rigid seal bar
Silica gel sealing layer is stated, the another side of the rigid seal bar is contacted with movable ram, and the movable ram is threadedly coupled with framework.
Further, the pilot system is also included for shearing the solution that produces in flow event to joint and with oozing
The rock particles that stream flows out is timed the solution auto-collection system of quantitative collection, and the delivery port is automatic with the solution
The entrance connection of collection system.
The solution auto-collection system includes electronically controlled valve and rotary type solution collection device, during the rotation
Solution collection device includes test tube, turntable, rotating shaft and solution collecting box；The first end of threeway water inlet pipe is connected with the delivery port
Logical, three directions of the threeway water inlet pipe are respectively mounted the valve, and the second end of the threeway water inlet pipe, the 3rd end are respectively positioned on
In the solution collecting box, in the solution collecting box, rotating shaft is rotatably mounted, turntable, the turntable are installed in the rotating shaft
A upper circle arranges test tube hole at equal intervals, and test tube is placed in the test tube hole, and the 3rd end of the threeway water inlet pipe is positioned at described
The surface of test tube.
The normal direction loading frame includes that normal direction load cylinder, main machine frame, normal force transducer, the displacement of normal direction mangneto are passed
Sensor, spherical universal pressure head and normal direction loading backing plate, the main machine frame have four framework column symmetries to be fixed on testing stand, frame
Connected by crossbeam between trestle, the normal direction load cylinder is fixed on crossbeam；Install on the piston rod of normal direction load cylinder
For measuring to normal direction load cylinder piston rod displacement and then carrying out servo-controlled normal direction mangneto displacement transducer to which,
Normal force transducer is connected to piston rod and exposes termination, and spherical universal pressure head is directly connected to normal force transducer, spherical universal
Pressure head is connected with normal direction loading backing plate, and the normal direction loading backing plate is contradicted in the seepage flow shear box and the top surface of sealing device；
The horizontal addload framework includes that horizontal stand, horizontal addload oil cylinder, horizontal force snesor, horizontal mangneto displacement are passed
Sensor, shearing pressure head and tangentially load backing plate, horizontal addload oil cylinder in the horizontal addload frame ends crossbeam, for plus
Carry cylinder piston rod displacement the horizontal mangneto displacement transducer for further controlling it is measured installed in horizontal addload oil
On the piston rod of cylinder, horizontal force snesor one end is connected to piston rod and exposes termination, the horizontal force snesor other end connection
Tangential loading backing plate connection, the tangential loading backing plate are contradicted in the side of the seepage flow shear box and sealing device.
The high-low-temperature environmental testing case includes environment casing and auxiliary equipment case, puts rigid shearing in the environmental cabinet body
Box, the upper rigid shear box left and right sides have supports block respectively and equipped with vertical ball；Lower rigid shear box is led to box inside bottom
Cross horizontal ball connection；The auxiliary equipment case is placed under testing stand, and the auxiliary equipment case includes water tank, compressor, liquid storage
Device, condenser and discharge outlet.
The infiltration water pressure control system includes servomotor, reduction box, ball screw, water-storage pressure room, hydraulic sensing
Device and water tank, whole seepage flow servo-control system press the signal control of the hydrostatic sensor of water inlet or by water inlet, delivery port
Between pressure differential being controlled；The output shaft of the servomotor connects the input shaft of reduction box, the output of the reduction box
Axle is connected with ball screw, and the ball-screw is linked with relief piston, connects the relief piston on water-storage pressure room, described
The water inlet of water-storage pressure room is connected with water tank, and delivery port is connected with hollow reservoir chamber；In left and right upper holder block Pipe installing hydraulic pressure
Sensor is measured, and installs flow sensor in water inlet, delivery port；
The seepage velocity control system includes that plunger displacement pump, the water inlet of the plunger displacement pump are connected with water tank, delivery port with
Hollow reservoir chamber connection.
The beneficial effects of the utility model are mainly manifested in：
1) test specimen is placed in high-low-temperature environmental testing case, can be tested, truly in the environment of -100 DEG C～+200 DEG C
Reflection Practical Project in rock temperature field；
2) horizontal addload framework may move, and is easily installed rock sample, can push in main machine frame after installation；
3) shear box shear direction by can with shear displacemant deform caulking gum piece sealing, laterally by servo-controlled
Oil pressure is sealed, it is ensured that the good sealing property under multi- scenarios method effect, and highest infiltration hydraulic pressure can reach 3MPa.
4) solution harvester can collect the solution that day part flows out joint automatically, by computer control, without the need for manually operating,
It is easy to subsequently carry out Accurate Analysis to the chemical composition of solution.
5) using the double Loading Control Systems of hydraulic servo and motor servo, it is possible to achieve the loading under many arbitrary boundary conditions,
Long-term load test be can achieve using motor servo control system.
Description of the drawings
Fig. 1 be consider rock joint shear during THMC couplings pilot system front view；
Fig. 2 be consider rock joint shear during THMC couplings pilot system side view；
Fig. 3 is high and low temperature environment box-section schematic diagram；
Fig. 4 is solution harvester profile；
Fig. 5 is solution harvester turntable top view；
Wherein, reference is as follows：1- main machine frames；2- normal direction loading frames；3- horizontal addload frameworks；4- environmental cabinets
Body；5- environmental cabinet auxiliary equipment casees；6- testing stands；7- shear boxs；8a- normal direction piston rods；8b- horizontal piston bars；9a- normal direction adds
Carry backing plate；9b- tangentially loads backing plate；10- sealing rings；11- insulatings；Supports block on the left of 12a-；Supports block on the right side of 12b-；13a-
Left side ball；Ball on the right side of 13b-；14- bottoms ball；15- pulleys；16- solution harvesters；16a- test tubes；16b- turntables；
16c- rotating shafts；16d- solution collecting boxs；16e- valves；The vertical LVDT of 17-；The horizontal LVDT of 18-；19a- upper lefts briquetting；19b- is right
Upper holder block；19c- lower-lefts briquetting；19d- bottom rights briquetting；20a- upper lefts briquetting pipeline；20b- upper right briquetting pipelines；The left sealings of 21a-
Sheet rubber；The right caulking gum pieces of 21b-；The left empty reservoir chambers of 22a-；The right hollow reservoir chambers of 22b-.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is further described.
With reference to Fig. 1～Fig. 5, the pilot system of THMC couplings during a kind of consideration rock joint shear, including master
Machine and loading structure, loading servo-control system, seepage flow shear box and sealing device, high-low-temperature environmental testing case and seepage flow servo
Control system, the main frame and loading structure include the orthogonal normal direction loading frame 2 with independent loads ability and water
Flat loading frame 3, the normal direction loading frame are that the horizontal addload framework is use for the mechanism for loading normal force to test specimen
In the mechanism for loading shearing force to test specimen；The loading servo-control system is used for the hydraulic loaded SERVO CONTROL system of conventional test
System and the motor servo loading system for rheological test；
The seepage flow shear box and sealing device include rigid shear box 7, upper holder block 19a, 19b, lower lock block 19c, 19d and
For caulking gum piece 21a, 21b Texturized with the increase of shear displacemant in shear history, rock sample is placed in just
Property shear box 7 in, the rock sample is respectively placed with upper holder block and lower lock block in shear direction both sides, the upper holder block and pushes
Leave between block for placing the space of the caulking gum piece, the upper end of the caulking gum piece is connected with upper holder block, described
The lower end of caulking gum piece is connected with lower lock block；Formed between the caulking gum piece and the fracture seepage face of the rock sample
Hollow reservoir chamber 22a, 22b, the hollow reservoir chamber of side are connected with water inlet, and the hollow reservoir chamber of opposite side is connected with delivery port
Logical；
The seepage flow servo-control system is included for controlling the infiltration hydraulic pressure control system of the hydraulic pressure of delivery port and water inlet
System and for controlling the seepage velocity control system of the flow velocity of delivery port and water inlet；
The seepage flow shear box and sealing device are located in the high-low-temperature environmental testing case, the normal direction loading frame and
The motion end of horizontal addload framework is contradicted through the high-low-temperature environmental testing case with the seepage flow shear box and sealing device；Institute
State loading servo-control system to be connected with the normal direction loading frame and horizontal addload framework respectively.
Further, the side in the crack of the rock sample is provided with for preventing water from the lateral seal group for laterally flowing out
Part.
Further, the lateral seal component includes rigid seal bar and silica gel sealing layer, on the rigid seal bar
Under be arranged symmetrically, the rigid seal bar is contradicted on the rock sample, the inside arrangement institute of the rigid seal bar
Silica gel sealing layer is stated, the another side of the rigid seal bar is contacted with movable ram, and the movable ram is threadedly coupled with framework.
Further, the pilot system is also included for shearing the solution that produces in flow event to joint and with oozing
The rock particles that stream flows out is timed the solution auto-collection system of quantitative collection, and the delivery port is automatic with the solution
The entrance connection of collection system.
The solution auto-collection system includes electronically controlled valve 16e and rotary type solution collection device, described turn
When dynamic, solution collection device includes test tube 16a, turntable 16b, rotating shaft 16c and solution collecting box 16d；The first end of threeway water inlet pipe
Connect with the delivery port, three directions of the threeway water inlet pipe are respectively mounted the valve, the second of the threeway water inlet pipe
End, the 3rd end are respectively positioned in the solution collecting box, are rotatably mounted rotating shaft in the solution collecting box, are pacified in the rotating shaft
Dress turntable, on the turntable, a circle arranges test tube hole at equal intervals, and test tube is placed in the test tube hole, the threeway water inlet pipe
3rd end is located at the surface of the test tube.
The normal direction loading frame includes normal direction load cylinder, main machine frame 1, normal force transducer, normal direction mangneto displacement
Sensor, spherical universal pressure head and normal direction loading backing plate 9a, the main machine frame 1 have four framework column symmetries to be fixed on testing stand
On 6, connected by crossbeam between frame column, the normal direction load cylinder is fixed on crossbeam；Piston rod in normal direction load cylinder
On install for measuring to normal direction load cylinder piston rod displacement and then carry out servo-controlled normal direction mangneto displacement to which
Sensor, normal force transducer are connected to normal direction piston rod 8a and expose termination, and spherical universal pressure head is direct with normal force transducer
Connection, spherical universal pressure head and normal direction loading backing plate 9a be connecteds, the normal direction load backing plate conflict in the seepage flow shear box and
The top surface of sealing device；
The horizontal addload framework includes that horizontal stand, horizontal addload oil cylinder, horizontal force snesor, horizontal mangneto displacement are passed
Sensor, shearing pressure head and tangential loading backing plate 9b, horizontal addload oil cylinder are arranged in horizontal addload frame ends crossbeam, for right
The horizontal mangneto displacement transducer that load cylinder piston rod displacement is measured and then controlled it is arranged on horizontal addload
On the piston rod of oil cylinder, horizontal force snesor one end is connected to horizontal piston bar 8b and exposes termination, and the horizontal force snesor is another
One end connection shearing loading backing plate 9b connections, the tangential loading backing plate 9b are contradicted in the seepage flow shear box and sealing dress
The side that puts.
The high-low-temperature environmental testing case includes environment casing and auxiliary equipment case, puts rigid shearing in the environmental cabinet body
Box, the upper rigid shear box left and right sides have supports block respectively and equipped with vertical ball；Lower rigid shear box is led to box inside bottom
Cross horizontal ball connection；The auxiliary equipment case is placed under testing stand, and the auxiliary equipment case includes water tank, compressor, liquid storage
Device, condenser and discharge outlet.
The infiltration water pressure control system includes servomotor, reduction box, ball screw, water-storage pressure room, hydraulic sensing
Device and water tank, whole seepage flow servo-control system press the signal control of the hydrostatic sensor of water inlet or by water inlet, delivery port
Between pressure differential being controlled；The output shaft of the servomotor connects the input shaft of reduction box, the output of the reduction box
Axle is connected with ball screw, and the ball-screw is linked with relief piston, connects the relief piston on water-storage pressure room, described
The water inlet of water-storage pressure room is connected with water tank, and delivery port is connected with hollow reservoir chamber；In left and right upper holder block Pipe installing hydraulic pressure
Sensor is measured, and installs flow sensor in water inlet, delivery port；
The seepage velocity control system includes that plunger displacement pump, the water inlet of the plunger displacement pump are connected with water tank, delivery port with
Hollow reservoir chamber connection.
It is configuration when being embodied as and connection example below.
Referring to accompanying drawing 1 and Fig. 2, during a kind of consideration rock joint shear, the pilot system of THMC couplings includes：
Main frame and loading structure, loading servo-control system, seepage flow shear box and sealing device, high-low-temperature environmental testing case, seepage flow are watched
Take control system, data acquisition measuring system and solution auto-collection system.
The main frame loading system is mainly by the orthogonal normal direction loading frame 2 with independent loads ability and level
Constitute to loading frame 3, framework is formed using high grade spheroidal graphite cast-iron one-piece casting, and frame stiffness is 6GN/m.The normal direction adds
Carrying framework mainly includes normal direction load cylinder, main machine frame, force snesor, mangneto displacement transducer, spherical universal pressure head, normal direction
Loading backing plate etc..The main machine frame 1 has four framework column symmetries to be fixed on testing stand 6, is connected by crossbeam between frame column,
The normal direction load cylinder is double acting single-rod piston hydraulic cylinder, is fixed on normal direction loading frame crossbeam.In normal direction loading oil
Mangneto displacement transducer is installed, for measuring to normal direction load cylinder piston rod displacement and then which being entered on the piston rod of cylinder
Row SERVO CONTROL.Force snesor is connected to piston rod 8a and exposes termination, and spherical universal pressure head is directly connected to spherical with force snesor
Universal pressing head loads backing plate 9a by normal direction and transmits Normal stress to test specimen, and normal direction loading backing plate is in order that Normal stress can
Relatively it is delivered evenly on test specimen, prevents the generation for biasing.The horizontal addload framework adopts floating type loading frame, can be left
Move right, horizontal addload framework is easily installed on the left of Fig. 1 when test specimen is installed, after installing, push right side main frame frame
In frame；The horizontal addload framework mainly includes horizontal stand, horizontal addload oil cylinder, force snesor, mangneto displacement transducer, cuts
Hob head, shearing loading backing plate, Antifriction linear guide rail etc.；Horizontal addload oil cylinder is arranged on horizontal addload frame ends crossbeam
Interior, mangneto displacement transducer is arranged on the piston rod 8b of horizontal addload oil cylinder, for carrying out to the displacement of load cylinder piston rod
Measurement is further controlled it.Force snesor one end is connected to piston rod and exposes termination, other end connection shearing pressure head 9b.
The loading servo-control system is included for the hydraulic loaded servo-control system of conventional test and for rheology
The motor servo Loading Control System of test.The hydraulic loaded servo-control system for conventional test, mainly by hydraulic pressure
Oil sources, hydraulic pump, servo valve, servo controller and sensor etc. are constituted；During conventional test, servo loading is mainly by liquid
Force feed source provides power, then is received sensor signal to control signal contrast and then sent to servo valve corresponding from servo controller
Control signal is adjusting oil cylinder oil inlet amount to realize SERVO CONTROL, and then realizes that people can be controlled before computer in process of the test
Process of the test.The motor servo Loading Control System that tests for rheology (long-term loading), mainly by servomotor, deceleration
Machine, synchronous cog belt, ball screw, oil storage cylinder, servo controller, sensor etc. are constituted；During rheological test, by servo
Motor drives decelerator to drive ball-screw by synchronous cog belt, and ball-screw drives oil storage cylinder inner carrier to move back and forth, living
Plug applies pressure in positive movement to the hydraulic oil in oil storage cylinder, and oil pressure by pressure duct and then is delivered to load cylinder,
Power is provided for rheological test, for example, in 100h, shear stress can be kept when shear displacemant is 5mm constant, then be weighed again
Newly start to shear；The servo-control system is controlled by the control software write using C Plus Plus under windows platform
System, software interface is friendly, powerful, be easy to extend, and can achieve normal Normal stress, normal Normal Displacement, three kinds of normal normal stiffness
Rock joint overall process coupling test under boundary condition.
The seepage flow shear box and sealing device, including rigid shear box 7, upper left briquetting 19a, upper right briquetting 19b, lower-left
Briquetting 19c, bottom right briquetting 19d, left caulking gum piece 21a, right caulking gum piece 21b and lateral seal component etc..Size is
The cube rock joint test specimen of 20cm × 10cm × 10cm is placed in rigid shear box 7, and test specimen is respectively put in shear direction both sides
Upper holder block and lower lock block is equipped with, a fixed gap between upper holder block and lower lock block, is left, for placing caulking gum piece；The sealing
Sheet rubber can be Texturized with the increase of shear displacemant in shear history, so as to realize continuous water seal effect；Described close
Envelope sheet rubber and upper lower lock block form left empty reservoir chamber 22a, right hollow reservoir chamber 22b, hydraulic pressure is equal by hollow reservoir chamber
Even act on the seepage flow face of joint, it is to avoid hydraulic pressure converges, the seepage flow closer in joint in nature and engineering
True form, highest infiltration hydraulic pressure can reach 3MPa；The upper holder block is provided with upper left briquetting pipeline 20a, upper right briquetting pipeline
20b, the upper holder block pipeline are connected with hollow reservoir chamber, and the upper holder block pipeline of both sides is connected with hydrostatic sensor, can be accurate
Differential water pressures between the actual water inlet in measurement joint and delivery port, rather than the differential water pressures between outer conduit；Joint side is arranged
There is lateral seal component, sealant is fitted tightly at joint using servo-controlled oil pressure, and oil pressure is controlled more than infiltration
Hydraulic pressure, so that realize lateral seal.
Referring to accompanying drawing 3, high-low-temperature environmental testing case can be used for the test specimens such as metal, nonmetallic, composite and component-
Mechanics properties testing test in 100 DEG C～+200 DEG C temperature environments, it is GB 10592-2008 that technology executes standard《High/low temperature
Chamber technical conditions》.The high-low-temperature environmental testing case is mainly made up of environment casing 4 and its auxiliary equipment case 5.Environmental cabinet
Put shear box 7 in vivo, the upper shear box left and right sides has left supports block 12a, right supports block 12b respectively, and equipped with left vertical ball 13a,
Right vertical ball 13b, it is ensured that test specimen can only be moved up and down when normal direction is loaded；Down cut box passes through ball 14 with box inside bottom
Connection, it is ensured that shear box can only horizontally slip at present for shearing loading, and casing exterior bottom can release horizontal addload equipped with pulley 15
Framework；Cabinets cavity and outer wall adopt high-quality stainless steel material, filling multilayer compound insulating material between inner chamber, outer wall to be formed
Insulating 11, on tank wall, perforate at water inlet, delivery port, left and right pipeline and loading pressure head, has sealing ring 10 around hole
Sealing, it is ensured that the sealing of tapping；Heating element heater adopts helical form Kanthal wire；Temperature element is PT100 thermal resistances；
Refrigeration system adopts compressor cooling；Temperature control system is by temperature element (thermocouple), central arithmetic unit, temperature monitor
Table, and the composition such as computer operation human-computer interaction interface；It is additionally provided with earth leakage protective, overcurrent protection, fastp-acting fuse；
The environment casing is connected with auxiliary equipment case 5 and is placed under testing stand, the auxiliary equipment include water tank, compressor, reservoir,
Condenser, discharge outlet etc..
The seepage flow servo-control system includes permeating water pressure control system and seepage velocity control system, goes out, water inlet
Hydraulic pressure and flow velocity controlled by system respectively.Infiltration water pressure control system mainly by servomotor, reduction box, ball screw,
Water-storage pressure room, hydrostatic sensor, travel switch and water tank composition, whole seepage flow servo-control system can press the liquid of water inlet
Signal (ordinary water pressure) control of pressure sensor is controlled by the pressure differential (normal permeable pressure head) between entery and delivery port；Increasing
During pressure, ball-screw advances relief piston to apply pressure to water-storage pressure room to positive movement, and the water of water-storage pressure room leads to
The hollow reservoir chamber 22a for crossing lower lock block formation enters Rock Joint Plane, flows out from the hollow reservoir chamber 22b of opposite side afterwards,
Measured with the hydrostatic sensor being connected on left and right upper holder block pipeline 20a, 20b through the seepage water pressure before and after rock joint,
Flow velocity is measured by the flow sensor of gateway；Signal according to being gathered controls servomotor by servo controller, so as to
Adjust the water pressure in water-storage pressure room and keep constant.Seepage velocity control system is mainly realized by plunger displacement pump, and is shared above-mentioned
The components such as the water tank of infiltration water pressure control system, hydrostatic sensor, the flow velocity being added in for control on water inlet；Two sets of systems are matched somebody with somebody
Close using the Transient Method that realizes in tiny flow quantity with measurement permeable pressure head, the measurement of discharge when flow is in and can survey scope
Steady state method carries out osmotic control.
The data acquisition measuring system is included for monitoring displacement, load, oil pressure, hydraulic pressure, flow velocity, temperature, humidity
Sensor, the data of each sensor are connected into computer carries out monitor in real time.Wherein, 2 mangneto displacement transducers are respectively used to monitor
Normal direction load cylinder and the displacement of shearing load cylinder inner piston rod, 5 linear displacement transducers (LVDT) are respectively used to monitor
The normal direction of test specimen and shear displacemant, 2 force snesors are respectively used to monitor normal force and shearing force；4 oil pressure sensor difference
For monitoring normal direction and shearing load cylinder and the oil pressure in lateral seal component；2 hydrostatic sensors are respectively used to monitor
Go out, the hydraulic pressure of water inlet；2 flow sensors are respectively used to detect, the flow velocity of water inlet；6 temperature sensors are used respectively
Temperature in monitoring test specimen surrounding；1 humidity sensor is used for monitoring the humidity in high-low-temperature environmental testing case.Wherein it is used for watching
Clothes control displacement and load collection monitoring mainly by controller, the piston rod inner mangneto displacement transducer of load cylinder,
Force snesor, microcomputer outside linear displacement transducer, piston rod and support software to realize；The normal direction of joint plane and cut
Cut displacement to be measured with the linear displacement transducer (LVDT) being installed on shear box, normal direction 17 (4) and shearing 18 (1) position
Displacement sensor using high precision, strong antijamming capability and good stability differential transformer displacement transducer (without temperature drift, when
Drift).0～10L/min ALICAT L-Series mass flowmenters are connected at shear box entry and exit, and which has high precision, repetition
The advantages of property good, fast response time, accurate measurement can be carried out to seepage discharge in shear history.
Referring to accompanying drawing 4-5, water outlet is provided with solution auto-collection system 16, the solution auto-collection system bag
Include test tube 16a, turntable 16b, rotating shaft 16c, solution collecting box 16d, valve 16e, electronic controller.The valve is by Electronic Control
Opening and closing, according to the time for setting by the solution injecting tube of set amount；The test tube is placed in turntable for 12 totally, can pass through centre
Rotating shaft 16c is rotated, and by turning an angle in Electronic Control certain time, such as rotates 30 degree per hour in 12 hours, so as to
The rock particles for flowing out to the solution of generation in joint shearing flow event and with seepage flow as needed is timed quantitative
Collect, so that the solution to collecting carries out chemical composition analysis.
Claims (8)
1. a kind of consideration rock joint shear during THMC couplings pilot system, it is characterised in that：The test system
System include main frame and loading structure, load servo-control system, seepage flow shear box and sealing device, high-low-temperature environmental testing case and
Seepage flow servo-control system, the main frame and loading structure include the orthogonal normal direction loading frame with independent loads ability
Frame and horizontal addload framework, the normal direction loading frame are for the mechanism to test specimen loading normal force, the horizontal addload frame
Frame is the mechanism for loading shearing force to test specimen；The loading servo-control system is used for the hydraulic loaded servo of conventional test
Control system and the motor servo loading system for rheological test；
The seepage flow shear box and sealing device include rigid shear box, upper holder block, lower lock block and be used in shear history with
The increase of shear displacemant and Texturized caulking gum piece, rock sample are placed in rigid shear box, and the rock sample exists
Shear direction both sides are respectively placed with upper holder block and lower lock block, are left for placing the sealing between the upper holder block and lower lock block
The space of sheet rubber, the upper end of the caulking gum piece are connected with upper holder block, and the lower end of the caulking gum piece is connected with lower lock block
Connect；Hollow reservoir chamber, the hollow water storage of side is formed between the caulking gum piece and the fracture seepage face of the rock sample
Room is connected with water inlet, and the hollow reservoir chamber of opposite side is connected with delivery port；
The seepage flow servo-control system include for control delivery port and water inlet hydraulic pressure infiltration water pressure control system and
For controlling the seepage velocity control system of the flow velocity of delivery port and water inlet；
The seepage flow shear box and sealing device are located in the high-low-temperature environmental testing case, the normal direction loading frame and level
The motion end of loading frame is contradicted through the high-low-temperature environmental testing case with the seepage flow shear box and sealing device；Described plus
Carry servo-control system to be connected with the normal direction loading frame and horizontal addload framework respectively.
2. during consideration rock joint shear as claimed in claim 1 THMC couplings pilot system, its feature exists
In：The side in the crack of the rock sample is provided with for preventing water from the lateral seal component for laterally flowing out.
3. during consideration rock joint shear as claimed in claim 2 THMC couplings pilot system, its feature exists
In：The lateral seal component includes rigid seal bar and silica gel sealing layer, rigid seal bar arrangement symmetrical above and below, described
Rigid seal bar is while contradict on the rock sample, the silica gel sealing layer, institute are arranged in the inside of the rigid seal bar
The another side and movable ram for stating rigid seal bar contacts, and the movable ram is threadedly coupled with framework.
4. as described in one of claims 1 to 3 consideration rock joint shear during THMC couplings pilot system, its
It is characterised by：The pilot system is also included for the solution to producing in joint shearing flow event and with seepage flow outflow
Rock particles is timed the solution auto-collection system of quantitative collection, the delivery port and the solution auto-collection system
Entrance connection.
5. during consideration rock joint shear as claimed in claim 4 THMC couplings pilot system, its feature exists
In：The solution auto-collection system includes electronically controlled valve and rotary type solution collection device, the solution during rotation
Collection device includes test tube, turntable, rotating shaft and solution collecting box；The first end of threeway water inlet pipe is connected with the delivery port, institute
Three directions for stating threeway water inlet pipe are respectively mounted the valve, and the second end of the threeway water inlet pipe, the 3rd end are respectively positioned on described
In solution collecting box, in the solution collecting box, rotating shaft is rotatably mounted, turntable is installed in the rotating shaft, one on the turntable
Circle arranges test tube hole at equal intervals, and test tube is placed in the test tube hole, and the 3rd end of the threeway water inlet pipe is located at the test tube
Surface.
6. as described in one of claims 1 to 3 consideration rock joint shear during THMC couplings pilot system, its
It is characterised by：The normal direction loading frame includes normal direction load cylinder, main machine frame, normal force transducer, normal direction mangneto displacement
Sensor, spherical universal pressure head and normal direction loading backing plate, the main machine frame have four framework column symmetries to be fixed on testing stand,
Connected by crossbeam between frame column, the normal direction load cylinder is fixed on crossbeam；Pacify on the piston rod of normal direction load cylinder
Filling further carries out servo-controlled normal direction mangneto displacement sensing to which for measuring to normal direction load cylinder piston rod displacement
Device, normal force transducer are connected to piston rod and expose termination, and spherical universal pressure head is directly connected to normal force transducer, and spherical ten thousand
It is connected to pressure head with normal direction loading backing plate, the normal direction loading backing plate is contradicted on the seepage flow shear box and the top of sealing device
Face；
The horizontal addload framework includes horizontal stand, horizontal addload oil cylinder, horizontal force snesor, horizontal mangneto displacement sensing
Device, shearing pressure head and tangentially load backing plate, horizontal addload oil cylinder in the horizontal addload frame ends crossbeam, for loading
The horizontal mangneto displacement transducer that cylinder piston rod displacement is measured and then controlled it is arranged on horizontal addload oil cylinder
Piston rod on, horizontal force snesor one end is connected to piston rod and exposes termination, and the horizontal force snesor other end connection is cut
Tangential loading backing plate connection, the tangential loading backing plate are contradicted in the side of the seepage flow shear box and sealing device.
7. as described in one of claims 1 to 3 consideration rock joint shear during THMC couplings pilot system, its
It is characterised by：The high-low-temperature environmental testing case includes environment casing and auxiliary equipment case, puts rigidity and cut in the environmental cabinet body
Box is cut, there is supports block the upper rigid shear box left and right sides respectively and equipped with vertical ball；Lower rigid shear box and box inside bottom
Connected by horizontal ball；The auxiliary equipment case is placed under testing stand, and the auxiliary equipment case includes water tank, compressor, storage
Liquid device, condenser and discharge outlet.
8. as described in one of claims 1 to 3 consideration rock joint shear during THMC couplings pilot system, its
It is characterised by：The infiltration water pressure control system includes servomotor, reduction box, ball screw, water-storage pressure room, hydraulic sensing
Device and water tank, whole seepage flow servo-control system press the signal control of the hydrostatic sensor of water inlet or by water inlet, delivery port
Between pressure differential being controlled；The output shaft of the servomotor connects the input shaft of reduction box, the output of the reduction box
Axle is connected with ball screw, and the ball-screw is linked with relief piston, connects the relief piston on water-storage pressure room, described
The water inlet of water-storage pressure room is connected with water tank, and delivery port is connected with hollow reservoir chamber；In left and right upper holder block Pipe installing hydraulic pressure
Sensor, installs flow sensor in water inlet, delivery port；
The seepage velocity control system includes that plunger displacement pump, the water inlet of the plunger displacement pump are connected with water tank, delivery port with hollow
Reservoir chamber is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937123.2U CN206020194U (en) | 2016-08-25 | 2016-08-25 | The pilot system of THMC couplings during consideration rock joint shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937123.2U CN206020194U (en) | 2016-08-25 | 2016-08-25 | The pilot system of THMC couplings during consideration rock joint shear |
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| CN206020194U true CN206020194U (en) | 2017-03-15 |
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| CN201620937123.2U Withdrawn - After Issue CN206020194U (en) | 2016-08-25 | 2016-08-25 | The pilot system of THMC couplings during consideration rock joint shear |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| WO2019071536A1 (en) * | 2017-10-12 | 2019-04-18 | 中国科学院地质与地球物理研究所 | System for field testing of seismic dynamic parameters |
| CN112255118A (en) * | 2020-09-28 | 2021-01-22 | 浙大宁波理工学院 | Testing device and testing method for interaction between soil and underground building structure |
-
2016
- 2016-08-25 CN CN201620937123.2U patent/CN206020194U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
| CN106124343B (en) * | 2016-08-25 | 2019-04-05 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
| WO2019071536A1 (en) * | 2017-10-12 | 2019-04-18 | 中国科学院地质与地球物理研究所 | System for field testing of seismic dynamic parameters |
| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| CN112255118A (en) * | 2020-09-28 | 2021-01-22 | 浙大宁波理工学院 | Testing device and testing method for interaction between soil and underground building structure |
| CN112255118B (en) * | 2020-09-28 | 2024-06-04 | 浙大宁波理工学院 | Device and method for testing interaction between soil and underground building structure |
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Granted publication date: 20170315 Effective date of abandoning: 20190405 |