CN105651670B - Two dimension pressurization water flowing mechanism and the two-dimentional rock sample seepage flow test device using it - Google Patents

Two dimension pressurization water flowing mechanism and the two-dimentional rock sample seepage flow test device using it Download PDF

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Publication number
CN105651670B
CN105651670B CN201511021619.1A CN201511021619A CN105651670B CN 105651670 B CN105651670 B CN 105651670B CN 201511021619 A CN201511021619 A CN 201511021619A CN 105651670 B CN105651670 B CN 105651670B
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China
Prior art keywords
rock sample
dimension
pressurization
dimentional
water flowing
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CN105651670A (en
Inventor
马国伟
董茜茜
李芳�
刘潇
夏从礼
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Lifang Tongda Industrial Tianjin Co ltd
Hebei University of Technology
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Cubic Access Industry (tianjin) Ltd
Beijing University of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/0806Details, e.g. sample holders, mounting samples for testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample
    • G01N15/0826Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change

Abstract

The present invention provides a kind of two dimension pressurization water flowing mechanism and using its two-dimentional rock sample seepage flow test device.Two dimension pressurization water flowing mechanism includes: reaction frame, for two-dimentional rock sample to be embedded in wherein;An at least extruding force force application mechanism, it is installed on the side of reaction frame, it applies extruding force to two-dimentional rock sample by the first pressurization water board of front end, second pressurization water board of the counter-force of the extruding force by reaction frame with respect to another side front end provides, to realize to the extruding in the horizontal direction of two-dimentional rock sample.Water flowing and pressurization function are combined into one, design from pressurization/water flowing structure in two-dimentional rock sample seepage flow test device is simplified by the way that water-filled pipe to be set to inside pressing plate by the present invention.

Description

Two dimension pressurization water flowing mechanism and the two-dimentional rock sample seepage flow test device using it
Technical field
The present invention relates to geotechnical engineering measuring instrument field more particularly to a kind of two dimension pressurization water flowing mechanism and apply its Two-dimentional rock sample seepage flow test device.
Background technique
In recent years, with the heavy constructions such as utilize of energy extraction, nuclear waste disposal, hydraulic engineering and the underground space A large amount of to build, rock Seepage problems are increasingly paid close attention to, in geotechnical engineerings such as mining, water conservancy and hydropower, tunnel, slope reinforcements In, fracture seepage has an important influence the stability of rock mass engineering project.One side rock cranny leads to underground engineering water damage The presence of one of the major reasons, another aspect crack has been greatly reduced rock mass strength.It is well known that because the compressibility of water Very little is easy transmitting pressure, can change the stress state in rock mass containing the Fluid pressure in water voids.But the deformation of rock mass Property and the deformation property of fluid have apparent difference, so the change of stress field caused by Fluid pressure, and flowing The consecutive variations of fluid stress caused by groundwater dynamic property all play very important shadow to the deformation behavior of geologic body It rings.Therefore, the failure mechanism and strength characteristics for studying crack rock will stablize Hydroelectric Engineering Geology subject and rock mass engineering project Subject has highly important theory significance and practical engineering application value.For rock material, failure by shear is that it is main Damage -form, therefore the research of lithosome shear-seepage coupling failure mechanism has great significance to solving the above problems.
Bibliography 1 (design and application of novel numerical control rock joint shear seepage tests platform, Wang Gang, rock-soil mechanics, 30 (10), a kind of numerical control rock joint shear seepage tests platform, major function 2009) are proposed are as follows: in joint test specimen normal direction side Upwards, testing stand has 3 class controllable boundary conditions: constant normal stress (CNL), constant Normal Displacement (CNV) and constant normal direction are rigid It spends (CNS).Parallel cracks shear direction can apply shearing force or displacement, osmotic pressure.It can under 3 kinds of boundaries and loading condition Carry out joint shearing test, joint permeability test, closure stress-infiltration coupling test, shear stress-infiltration coupling test, rock The shearing seepage flow rheological test at stone joint and the radiant flux test of rock joint.
Fig. 1 is please referred to, the system is whole by axially loaded frame, lateral loading mechanism, axially and transversely creep control system System, seepage flow subsystem, shear box and digital control system composition.Each chief component and its working principle are introduced as follows in detail:
Axially loaded frame includes load cylinder, main machine frame, force snesor, upper lower platen etc..Host uses frame knot Configuration formula, load cylinder inversion are fixed on upper beam, and force snesor is mounted on piston.
Lateral loading mechanism includes load cylinder, shearing loading frame, force snesor, displacement sensor etc..Shearing load Frame is all made of high grade spheroidal graphite cast-iron using four frame combined types, oil cylinder seat and strut beam and the side plate on two sides, keeps its frame rigid Big (5000kN/mm) is spent, stable working is reliable;Shearing loading frame is placed on guide rail, is installed when carrying out shearing test It is pushed it in main machine frame after sample, after setting other boundary conditions, it can carry out corresponding shearing test.
Laterally and axially control system uses German DO LI company imported with original packaging EDC Full-digital servo controller, the control Device is controller leading in the world, has multiple Measurement channels, and each Measurement channel can carry out load, displacement, deformation respectively Deng independent control or several Measurement channels jointly control, and may be implemented to convert without impact between multiple control modes.? A stiffness reliability channel can be set in EDC, the normal direction calculated according to the obtained normal stress of measurement and normal deformation is rigid Angle value feeds back to EDC control output channel as control parameter, and well-established law thus may be implemented to stiffness reliability.This function exists It cannot achieve in other controllers.The Measure Precision of EDC is high, easy to operate, defencive function is complete, may be implemented to mark automatically It is fixed, automatic clear 0 and fault self-diagnosis.
Seepage flow subsystem includes infiltration compression system, Japanese import Panasonic's servo motor and controller, EDC controller.It adopts Multistage controllable permanent osmotic pressure and seepage discharge control may be implemented with the system.In the water outlet of shear box, a set of liquid is set Pressure sensor, flow measurement device and stable-pressure device, and a pressure difference control channel is set in EDC Control System Software, come The difference of inlet pressure and outlet pressure is measured, realizes the closed-loop control of shear box import and export osmotic pressure difference.And it can be real Existing stable state and the control of transient state osmotic pressure.
Shear box inside dimension is 200mm (water penetration direction) × 100mm (infiltration width) × 100mm (height).Seepage flow Shear box is made of upper and lower shear box, and upper shear box is made of upper spliced body, upper seal, upper knife body cushion block;Lower shear box by Lower spliced body, lower seal, lower knife body cushion block composition.The characteristics of sealing ring is this programme and critical component, it be by elasticity and Liquid rubber, casting compression molding is made in the moderate polyurethane of hardness.Polyurethane rubber has not only soft but also hard, the small equal spies of friction Point.Sealing ring be it is hollow, the liquid plastics of certain pressure will be injected after sample installs, in cavity, upper seal is being pressed The surrounding of the sample upper half is affixed tightly under power, and the surrounding that lower seal is affixed tightly to sample lower half under stress realizes Sealing, while the contact surface of upper seal and lower seal also receives pressure thight contact, realizes sealing.When upper and lower shearing When box generates relative movement, the contact surface of upper seal and lower seal still maintains compression seal in slip conditions, until Sealing ring disengages.There is an inlet opening to shear sweat to rock sample in upper knife body, another hole is gas vent;Lower knife body In have an apopore, to be discharged penetrate into rock sample shear surface in water.
In the implementation of the present invention, it is found by the applicant that the pressurization of existing rock sample seepage flow test device and water flowing two Part is provided separately, and causes circuit design very chaotic, also, same direction different location hydraulic pressure is applied on rock sample Add unevenly, influences the accuracy of test result.
In addition, for numerical control rock joint shear seepage tests platform shown in FIG. 1, primarily directed to three-dimensional rock sample Be designed, so it carries out normal direction load from bottom to top, carry out shearing load from right-to-left, however three-dimensional rock cranny by Complicated, hidden in it, internal rupture mechanism can not be disclosed really under the prior art.And the prior art is proposed Three-dimensional fracture is not real " three-dimensional ", and the only plane of rule, essence are still two dimension.Therefore, two-dimentional rock is tried Sample carries out test with more realistic meaning.And there is no be directed to what two-dimentional rock sample Fracture Networks were tested in the prior art Device.
Summary of the invention
(1) technical problems to be solved
In view of above-mentioned technical problem, the present invention provides a kind of two dimension pressurization water flowing mechanism and using its two-dimentional rock examination Sample seepage flow test device is designed with simplifying the structure of pressurization and water flowing.
(2) technical solution
According to an aspect of the invention, there is provided a kind of two dimension pressurization water flowing mechanism.Two dimension pressurization water flowing mechanism packet It includes: reaction frame 52, for two-dimentional rock sample to be embedded in wherein;An at least extruding force force application mechanism 53,56 is installed on anti- The side of power frame 52 applies extruding force to two-dimentional rock sample by first pressurization water board 53a, 56a of front end, this is squeezed Second pressurization water board 53b of the counter-force of pressure by reaction frame with respect to another side front end is provided, to realize to two-dimentional rock Sample extruding in the horizontal direction.
Preferably, above-mentioned two dimension pressurization water flowing mechanism further include: at least two second longitudinal direction lifting motors 51;Wherein, instead Power frame 52 is fixed on the top of at least two 51 output shafts of the second lifting motor;Reaction frame 52 is vertical at this at least two second There is threaded hole to the position of lifting motor output threaded rod, the output threaded rod of at least two second longitudinal direction lifting motors is worn Corresponding threaded hole on reaction frame 52 is crossed, under this at least two driven situations of second longitudinal direction lifting motor, output Threaded rod pushes reaction frame 52 to rise or decline, and under decline state, which will be located at the two of test zone Dimension rock sample is embedded in wherein.
According to another aspect of the present invention, a kind of two-dimentional rock sample seepage flow test device is additionally provided.The two dimension rock Stone sample seepage flow test device includes: above-mentioned two dimension pressurization water flowing mechanism;Chassis 10, top are divided into sample introduction region and test Region, has sliding rail between the sample introduction region and test zone, and two dimension pressurization water flowing mechanism is fixed on the test of the chassis 10 The top in region;Rock sample pedestal 30, can be free to slide on the slide rail, for by the two-dimentional rock sample being horizontally arranged by Sample introduction region is transported to test zone;Longitudinal loading mechanism is fixed on the top of the test zone of chassis 10, logical with two dimension pressurization Water dispenser structure mutually staggers, generally liftable structure;Wherein, two-dimentional rock sample is square, and has Fracture Networks thereon, When transporting two-dimentional rock sample, longitudinal loading mechanism and two dimension pressurization water flowing mechanism are risen;It is transported in two-dimentional rock sample After test zone, longitudinal loading mechanism and two dimension pressurization water flowing mechanism are fallen, respectively to the two-dimentional rock for being transported to test zone The extruding force of sample application longitudinal force and horizontal direction.
(3) beneficial effect
It can be seen from the above technical proposal that present invention two dimension pressurization water flowing mechanism and the two-dimentional rock sample infiltration using it Stream experimental rig has the advantages that
(1) by the way that water-filled pipe to be set to inside pressing plate, water flowing and pressurization function are combined into one, from simplifying two dimension It pressurizes in rock sample seepage flow test device and the structure of water flowing designs;
(2) guarantee its stability by placing above-mentioned rock sample plane;Pass through extruding force force application mechanism and counter-force frame The application realized to two-dimentional rock sample lateral force is used in combination in frame;
(3) it is designed specifically for two-dimentional rock sample, the load of the two-dimentional rock sample of realization that can be reliable and stable And the application of extruding force and shearing force, fill up the sky of the shear-seepage coupling test device of domestic and international two-dimentional rock sample It is white;
Using two-dimentional rock sample, flow event is more intuitive, mechanism is more clear, changes conventional three-dimensional test process Not intuitive enough, mechanism is not clear enough, result is difficult to the shortcomings that accurately measuring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of prior art numerical control rock joint shear seepage tests platform;
Fig. 2 is the structural schematic diagram according to two dimension rock sample seepage flow test device of the embodiment of the present invention;
Fig. 3 is the schematic diagram of longitudinal loading mechanism in two dimension rock sample seepage flow test device shown in Fig. 2;
Fig. 4 is the schematic diagram of chassis and lateral loading mechanism in two dimension rock sample seepage flow test device shown in Fig. 2;
Fig. 5 is the stress diagram of two-dimentional rock sample in two dimension rock sample seepage flow test device shown in Fig. 2;
Fig. 6 is that X is logical to the pressurization of extruding force force application mechanism head first in two dimension rock sample seepage flow test device shown in Fig. 2 The schematic diagram of water plate.
[main element]
A- two dimension rock sample;
10- chassis;
11,12- sliding rail;
20- sealing mechanism;
21,22- longitudinal sealing pad;23- lateral seal ring;
The permeable region 23a~23d-;
30- rock sample pedestal;
The longitudinal direction 40- loading mechanism;
41- column;42- motor mounting plate;
43- first longitudinal direction lifting motor;44- bilayer loading frame;
The upper load plate of 44a-;Load plate under 44b-;
45- armorplate glass;
The side 50- is to loading mechanism;
51- second longitudinal direction lifting motor;52- reaction frame;
53-X is to extruding force force application mechanism;56-Y is to extruding force force application mechanism;
The pressurization water board of 53a- first;The pressurization water board of 53b- second;
56a- third pressurization water board;The pressurization water board of 56b- the 4th.
Specific embodiment
Water flowing and pressurization function are combined into one by the way that water-filled pipe to be set to inside pressing plate by the present invention, from simplifying It pressurizes in two-dimentional rock sample seepage flow test device and the structure of water flowing designs, and rock can be simulated based on this exploitation and composition one kind The pilot system of stone sample mechanism characteristic under stress field and water flow field collective effect, can be adapted for rock fracture in stress field With the failure mechanism experimental study under water flow field collective effect.
It should be noted that two dimension pressurization water flowing mechanism is as two-dimentional rock sample seepage tests in following examples Device is illustrated.Certainly, in other embodiments of the present invention, two dimension pressurization water flowing mechanism can also be used alone or make For the subsidiary body of other equipment.
In an exemplary embodiment of the present invention, a kind of two-dimentional rock sample seepage flow test device is provided.This reality It applies in example, test object is rectangular bluestone board A, size are as follows: long 500mm, wide 500mm, 10~20mm of thickness.Add on the bluestone board Work has Fracture Networks, and Fracture Networks position is fixed, cut through by engraving machine, side surface be nature it is coarse, without polishing.
Fig. 2 is the structural schematic diagram according to two dimension rock sample seepage flow test device of the embodiment of the present invention.Fig. 5 is Fig. 2 institute Show the stress diagram of two-dimentional rock sample in two-dimentional rock sample seepage flow test device.As shown in Figure 2 and Figure 5, the present embodiment Two-dimentional rock sample seepage flow test device includes:
Chassis 10, top are divided into sample introduction region and test zone, have between the sample introduction region and test zone and slide Rail 11,12;
Sealing mechanism 20 opens up permeable respectively for sealing two-dimentional rock sample on four sides of the sealing mechanism Region 23a~23d;
Rock sample pedestal 30, can be free to slide on the slide rail, for by the two-dimentional rock sample being horizontally arranged by into Sample region is transported to test zone;
Longitudinal loading mechanism is fixed on the top of the test zone of chassis 10, generally liftable structure, is transporting two dimension When rock sample, which is risen, after two-dimentional rock sample is transported to test zone, the longitudinal direction loading mechanism It falls, longitudinal pressure is applied to the two-dimentional rock sample for being transported to test zone;
Lateral loading mechanism 50, is fixed on the top of the test zone of chassis 10, generally liftable structure, and described Longitudinal loading mechanism is staggered, and when transporting two-dimentional rock sample, which is risen, and is transported in two-dimentional rock sample To test zone, which is fallen, and applies lateral pressure to the two-dimentional rock sample for being transported to test zone;
Osmotic system, for the pressurization water board by lateral loading mechanism head into sealing mechanism two-dimentional rock sample Fracture Networks apply preset osmotic pressure;It is collected simultaneously the water of exudation;And
Data acquisition module, for seepage parameters of the two-dimentional rock sample under pressurized condition to be acquired and handled.
Wherein, sealing mechanism 20, lateral loading mechanism 50 and osmotic system form a kind of novel two dimension pressurization water flowing machine The detailed construction of structure, each component part will be explained below.
Each component part of the present embodiment two dimension rock sample seepage flow test device is described in detail below.
In the present embodiment, Fracture Networks are machined on two-dimentional rock sample A, as shown in Figure 5.The position of Fracture Networks is solid It is fixed, it is carved out before test with engraving machine.
Shape, depth and artistic carving etc. about the Fracture Networks, can be reasonably selected by those skilled in the art, It is not limited to form given by the present embodiment.
Referring to figure 2., chassis 10 is in frame-like construction.In order to facilitate staff's operation, which has certain height Degree, and all kinds of electrical control mechanisms is installed in side.
The top of the chassis 10 is equipped with non-interference sliding rail 11,12 in two perpendicular direction, thus via corresponding Rock sample pedestal 30 two-dimentional rock sample can be transported to test zone, Jin Ershi by sample introduction region from both direction The test of existing two different forms and content.
Due to guarantee that water is moved only along crack when test, so needing to be sealed six sides of rock sample. Sealing mechanism 20 includes: longitudinal sealing pad 21,22, is located at the upper and lower part of two-dimentional rock sample, realizes two-dimentional rock The sealing of Sample A upper and lower surfaces;Lateral seal ring 23 is in " returning " font, is surrounded from surrounding by two-dimentional rock sample A, Realize the sealing of four sides of two-dimentional rock sample.Permeable region is offered respectively on four sides of lateral seal ring 23 23a~23d, as shown in Figure 5.
It is transparent PVC material for longitudinal sealing pad 21,22, facilitates observation two-dimentional rock sample during the test State and infiltration situation.For lateral seal ring 23, it is polyurethane material, is made by Shooting Technique, can bears Biggish pressure.The combination of the longitudinal sealing pad 21,22 and lateral seal ring 23, may be implemented the sealing of 2MPa water.
It can connect and be integrated between the longitudinal sealing pad 21,22 and lateral seal ring 23, be also possible to separately positioned.Only It wants two-dimentional rock sample A can be surrounded.Since longitudinal loading mechanism can be longitudinally applied to pressure, and lower section chassis meeting Counter-force is provided, thus even if not connected between longitudinal sealing pad 21,22 and lateral seal ring 23, under the effect of the pressure, three Person also can tightly be attached onto, will not leak.
Fig. 3 is the schematic diagram of longitudinal loading mechanism in two dimension rock sample seepage flow test device shown in Fig. 2.Referring to figure 2. And Fig. 3, the longitudinal direction loading mechanism 40 include: the four columns 41 being fixed on above chassis test zone;It is fixed on four columns The motor mounting plate 42 at top;It is fixed on above motor mounting plate, and extends downwardly four first longitudinal direction liters of output threaded rod Motor 43 drops;The double-deck loading frame 44 comprising relative position fixed upper load plate 44a and lower load plate 44b.
Four corner locations of upper load plate 44a offer sliding eye, and four columns pass through four sliding eyes, add on this Support plate slides up and down offer limit.Upper load plate 44a is in the correspondence position of the output threaded rod of four first longitudinal direction lifting motors It sets and offers corresponding threaded hole, the output threaded rod of four first longitudinal direction lifting motors is screwed into corresponding threaded hole.It is lower to add The lower surface of support plate 44b is fixed with armorplate glass 45.In four driven situations of first longitudinal direction lifting motor, four defeated Threaded rod pushes the double-deck loading frame to move down out, and the two-dimentional rock sample of lower section is pushed down by armorplate glass.
Fig. 4 is lateral chassis and lateral loading mechanism in two dimension rock sample shear-seepage coupling test device shown in Fig. 2 Schematic diagram.Referring to figure 2. and Fig. 4, lateral loading mechanism 50 include: three second longitudinal direction lifting motors 51, reaction frame 52, X is to extruding force force application mechanism 53 and Y-direction extruding force force application mechanism 56.
The bottom of three second longitudinal direction lifting motors 51 is fixed on chassis 10.Wherein, two second longitudinal direction lifting motors 51 are located at the ipsilateral of extruding force force application mechanism 53, and a first from left is right;Another second longitudinal direction lifting motor is located at extruding force force machine The opposite side of structure 53.
Reaction frame 52 is fixed on the top of three second longitudinal direction lifting motor output shafts, and with longitudinal loading mechanism Four columns 41 are staggered.Wherein, reaction frame 52 has spiral shell in the position of three second longitudinal direction lifting motor output threaded rods Pit.Three second longitudinal direction lifting motor output threaded rods pass through corresponding threaded hole on reaction frame 52.At this three second In longitudinal driven situation of lifting motor, the output threaded rod of three second longitudinal direction lifting motors pushes reaction frame to rise Or decline.When reaction frame 52 is located at decline state, reaction frame 52 is embedding by the two-dimentional rock sample A for being located at test zone Together in wherein.
It should be noted that the present embodiment uses three second longitudinal direction lifting motors 51, and in other embodiments of the invention In, the quantity of second longitudinal direction lifting motor can also be set as needed.Under normal circumstances, two second longitudinal direction liters are at least needed Motor is dropped, the opposite two sides of reaction frame are separately positioned on.
Fig. 5 is the stress diagram of two-dimentional rock sample in two dimension rock sample seepage flow test device shown in Fig. 2.It please refers to Fig. 2 and Fig. 5, X are installed on the side of reaction frame 52 to extruding force force application mechanism 53, pass through the first pressurization water board of front end 53a applies the extruding force of X-direction to two-dimentional rock sample, and the counter-force of the extruding force is by reaction frame with respect to the of another side front end Two pressurization water board 53b are provided, to squeezed in X-direction two-dimentional rock sample.Y-direction extruding force force application mechanism 56 is installed In the front of reaction frame 52 on reaction frame, Y is applied to two-dimentional rock sample by the third pressurization water board 56a of front end The extruding force in direction, fourth pressurization water board 56b of the counter-force of the extruding force by reaction frame with respect to another side front end are provided, from And two-dimentional rock sample is squeezed in the Y direction.
Wherein, the first pressurization water board 53a and third pressurization water board 56a have inlet pipeline, and the two alignment is lateral close Permeable region in seal ring respective side edge adds water to the two-dimentional rock sample being sealed on the inside of lateral seal ring.Second pressurization is logical The pressurization of water plate 53b and the 4th water board 56b has outlet pipeline, which is similarly aligned in lateral seal ring respective side edge Permeable region, to collect through the water that oozes of Fracture Networks on two dimension rock sample.
Fig. 6 is that X is logical to the pressurization of extruding force force application mechanism head first in two dimension rock sample seepage flow test device shown in Fig. 2 The schematic diagram of water plate.As shown in fig. 6, offering the seepage tank of several segments, each seepage flow on the inside of first pressurization water board 53a Slot is connected with an inlet opening of the first pressurization water board upper surface.It is shown in solid in inlet opening such as Fig. 5.It when in use, if should Seepage tank in dry section seepage tank alignment lateral seal ring respective side edge, is intake by corresponding inlet opening respectively.
Herein, the seepage tank of multistage is set, and the corresponding independent inlet opening of each seepage tank is to guarantee in two-dimentional rock The different location of stone sample side, can receive identical water pressure.The seepage tank of the multistage is divided into positioned at different level Two rows, also, adjacent seepage tank is located on different levels, and is not connected to.Do so is to be located to guarantee two-dimentional rock examination On the different height of sample side, there is water flow infiltration.
It will be appreciated by those skilled in the art that can according to need the number of segment that seepage tank is arranged and position in the horizontal plane It sets, also, the permeable region on lateral seal ring side can also be segmented.In the case where requiring not stringent, can also only set Setting in one section of seepage tank on horizontal plane, but in this case in the water of the same side different location of two-dimentional rock sample Pressure will less uniformly, it is possible to influence test result.
Third pressurization water board 56a is identical as the first pressurization structure of water board 53a.And second pressurization water board 53b and 4th pressurization water board 56b is substantially the same with the first pressurization water board 53a, and difference is only that, each seepage tank and corresponding pressurization One apopore of water board lower surface is connected, as shown in phantom in Figure 5.The course of work about three is herein no longer specifically It is bright.
By the lateral loading mechanism, the lateral load capability of the present embodiment test device is 100KN, and infiltration hydraulic pressure is 2MPa。
Osmotic system includes: water supply compression system and return water system.Water supply compression system includes: driven by stepper motors Hydraulic controller.Hydraulic controller by piping connection in first pressurization water board and third pressurize water board upper surface into Water hole.After the completion of two-dimentional rock sample lateral force applies, hydraulic controller passes through inlet opening to the crack of two-dimentional rock sample Network applies preset osmotic pressure.Return water system includes catch basin.Under second pressurization water board and the 4th pressurization water board The apopore on surface passes through piping connection to the catch basin.Water body in catch basin can be discharged;Outer water pump can also be passed through It is pumped into hydraulic controller, to be recycled.
Data acquisition module is for seepage parameters (the Bidirectional-squeezing power, hydraulic pressure to two-dimentional rock sample under pressurized condition Power and seepage flow water volume) it is acquired comprising: two weighing sensors, a water pressure sensor and two flows Meter.Wherein, two weighing sensor ranges are 100kN.Be installed in respectively X, Y-direction extruding force force application mechanism 53,56 and its Between the pressurization water board in front, the axial compressive force for being applied to two-dimentional rock sample in the process is tested for measuring.Water pressure passes Sensor range is 2MPa, is installed in the outside of water inlet, infiltrates water pressure for measure that test infiltrates end in the process.Flow Cheng Junwei 5ml/s is measured, the outside of the second pressurization water board and the 4th pressurization water board apopore is installed in respectively, for surveying Ooze out the flow of water flow during amount test in direction along Fracture Networks.It should be noted that since two-dimentional rock tries The internal crack of sample is identical, and it is identical that both direction, which infiltrates hydraulic pressure, so to be placed on which end all right for water pressure sensor;And it flows Amount is then respectively in the second pressurization water board and the 4th pressurization water board both direction measurement.
It should be noted that close in this present embodiment first longitudinal direction lifting motor, second longitudinal direction lifting motor, X to extruding Power force application mechanism and Y-direction extruding force force application mechanism, have corresponding electric-control system to control it.And the electric-control system is adopted It is electric-control system commonly used in the art, is no longer described in detail herein.And the sensor in data acquisition module is also this General sensor in field, those skilled in the art should be quite familiar with it, no longer be described in detail herein.
After the structure to the present embodiment two dimension rock sample seepage flow test device is described in detail, below to its work It is illustrated as principle:
(1) sample prepares: carving Fracture Networks on two-dimentional rock sample with engraving machine;
(2) sample introduction: two-dimentional rock sample A or more is disposed into longitudinal sealing pad 21,22, is placed in rock sample pedestal 30 On, surrounding connects lateral sealing ring 23, and makes the permeable regional alignment Fracture Networks of 23 inside of lateral seal ring;Under passing through later The whole push-in test zone of portion's sliding rail 11.
(3) longitudinal register: four first longitudinal direction lifting motors 43 of driving make the double-deck loading frame 44 compress armorplate glass 45 simultaneously compress rock sample in turn.
(4) horizontal direction positions: four second longitudinal directions of driving go up and down electrode 51, decline reaction frame 52 and two-dimentional rock sample It is completely fitted;
(5) it presses: squeezing for X-direction being applied to extruding force force application mechanism 53 by X in the direction in front and back (front → reverse side) The counter-force of pressure, the extruding force of this X-direction is provided by the other side of reaction frame 52;Simultaneously in left and right (left side → right side) direction Apply the extruding force of Y-direction by Y-direction extruding force force application mechanism 56, the counter-force of the extruding force of this Y-direction is by the another of reaction frame Side provides.
(6) water flowing: hydraulic controller is by piping connection in the upper table of the first pressurization water board and third pressurization water board The inlet opening in face.After the completion of rock sample extruding force applies, hydraulic controller passes through those inlet openings to two-dimentional rock sample The preset osmotic pressure of the application of Fracture Networks;The respective opposite other end in two-dimentional rock sample crack collects exudation simultaneously Water body is simultaneously directed into catch basin;
(7) data acquire: acquire respectively by two weighing sensors be applied to during test rock panel X, Y-direction it is crowded Pressure, water pressure sensor acquire the water pressure for infiltrating end, and two flowmeters are for acquiring respectively along rock panel crack along two The water body volume of a direction exudation.
Two-dimentional rock is tried test proves that the present embodiment two dimension rock sample seepage flow test device can be realized smoothly The load of sample, and seepage flow coupling measurement is carried out, there is stronger practicability.
So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art Not only should be to two-dimentional rock sample seepage flow test device, and should have clearly to two dimension pressurization water flowing mechanism therein Understanding.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously It is not limited only to various specific structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out letter to it It singly changes or replaces, such as:
(1) above-mentioned lateral loading mechanism can also replace lateral reaction frame structure using opposite direction load;
(2) above-mentioned seepage flow water outlet mouth can also substitute pipeline direct emission using hydraulic controller;
(3) position etc. of the inlet and outlet setting of sealing mechanism, can also be according to crack on two-dimentional rock sample The position of network is adjusted, in addition, the position of Fracture Networks is also not limited to the center of two-dimentional rock sample;
(4) structure and connection about osmotic system and data acquisition module, those skilled in the art can according to need Rationally setting, and can be using molding Related product in the market;
(5) it can provide the demonstration of the parameter comprising particular value herein, but these parameters are worth without definite equal to corresponding, and It is that can be similar to analog value in acceptable error margin or design constraint;
(6) direction term mentioned in embodiment, such as "upper", "lower", "front", "rear", "left", "right" etc. are only ginsengs The direction for examining attached drawing, the protection scope being not intended to limit the invention.
In conclusion the present invention provides one kind by the way that water-filled pipe to be set to inside pressing plate, by water flowing and pressurization function It is combined into one, is designed from simplifying to pressurize in two-dimentional rock sample seepage flow test device with the structure of water flowing, and based on this exploitation Making one kind can be with the pilot system of simulation rock sample mechanism characteristic under stress field and water flow field collective effect, can be with mould The test of quasi- rock sample mechanism characteristic under stress field and water flow field collective effect, while being suitable for rock fracture in stress field With the failure mechanism experimental study under water flow field collective effect, there is stronger practical value.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention Within the scope of shield.

Claims (9)

1. a kind of two dimension pressurization water flowing mechanism characterized by comprising
Reaction frame (52), for two-dimentional rock sample to be embedded in wherein;
An at least extruding force force application mechanism (53,56), is installed on the side of the reaction frame (52), passes through the first of front end Water board (53a, 56a) the Xiang Erwei rock sample that pressurizes applies extruding force, and the counter-force of the extruding force is relatively another by reaction frame The second pressurization water board (53b, 56b) held in front provides, to realize to the extruding in the horizontal direction of two-dimentional rock sample;
Wherein, multistage seepage tank, each section of seepage tank and the first pressurization are offered on the inside of first pressurization water board (53a) One inlet opening of water board upper surface is connected, which is divided into two rows positioned at different level, also, adjacent Seepage tank is located on different levels and is not connected to.
2. two dimension pressurization according to claim 1 water flowing mechanism, which is characterized in that
It is described second pressurization water board (53b) and it is described first pressurization water board (53a) difference be only that: each seepage tank and One apopore of second pressurization water board lower surface is connected.
3. two dimension pressurization according to claim 2 water flowing mechanism, which is characterized in that an at least extruding force force application mechanism (53,56) include:
X is installed on the side of reaction frame (52) to extruding force force application mechanism (53), passes through the first pressurization water board of front end The extruding force of (53a) Xiang Erwei rock sample application X-direction;And
Y-direction extruding force force application mechanism (56), is installed on the front of reaction frame (52), passes through the first pressurization water board of front end The extruding force of (56a) Xiang Erwei rock sample application Y-direction;
Wherein, the inlet opening of first pressurization water board (53a, 56a) is connected to water source, by the seepage tank of inside to two dimension Rock sample adds water;Second pressurization water board (53b, 56b) is collected was seeped by the Fracture Networks on two-dimentional rock sample The water come, and it is discharged by apopore.
4. two dimension pressurization according to claim 2 water flowing mechanism, which is characterized in that the two dimension pressurization water flowing mechanism is also wrapped It includes: sealing mechanism (20), for sealing two-dimentional rock sample;
The sealing mechanism includes: two longitudinal sealing pads (21,22), is located at the upper and lower part of two-dimentional rock sample, real The sealing of the upper and lower surfaces of existing two dimension rock sample;Lateral seal ring (23) is in " returning " font, from surrounding by two-dimentional rock Sample is surrounded, and realizes the sealing of four sides of two-dimentional rock sample;In the lateral seal ring (23) at least opposite Permeable region (23a~23d) is offered on two sides;
Wherein, the permeable region in the seepage tank alignment lateral seal ring respective side edge of first pressurization water board (53a), to It is sealed in the two-dimentional rock sample on the inside of lateral seal ring and adds water;The seepage tank of second pressurization water board (53b) is directed at side Permeable region in sealing ring respective side edge, to collect the water to ooze by the Fracture Networks on two-dimentional rock sample.
5. two dimension pressurization according to claim 2 water flowing mechanism, which is characterized in that the two dimension pressurization water flowing mechanism is also wrapped Include: osmotic system, the osmotic system include:
Water supply compression system, comprising: hydraulic controller driven by stepper motors, the hydraulic controller is by piping connection in the The inlet opening of one pressurization water board upper surface;
The apopore of return water system, including catch basin, second pressurization water board lower surface is catchmented by piping connection to this Slot.
6. two dimension pressurization according to claim 1 water flowing mechanism, which is characterized in that the two dimension pressurization water flowing mechanism is also wrapped It includes: at least two second longitudinal direction lifting motors (51);
Wherein, the reaction frame (52) is fixed on the top of at least two second longitudinal direction lifting motor (51) output shafts; The reaction frame (52) has threaded hole in the position of at least two second longitudinal direction lifting motor output threaded rods, this is at least The output threaded rod of two second longitudinal direction lifting motors passes through corresponding threaded hole on reaction frame (52), at this at least two the In the two driven situations of longitudinal lifting motor, output threaded rod pushes the reaction frame (52) to rise or decline, Under decline state, which is embedded in the two-dimentional rock sample for being located at test zone wherein.
7. a kind of two dimension rock sample seepage flow test device, which is characterized in that the two dimension rock sample is square, and has thereon Fracture Networks;The two dimension rock sample seepage flow test device includes:
Two dimension pressurization as claimed in claim 6 water flowing mechanism;
Chassis (10), top are divided into sample introduction region and test zone, have sliding rail between the sample introduction region and test zone, The two dimension pressurization water flowing mechanism is fixed on the top of the test zone of the chassis (10);
Rock sample pedestal (30), can be free to slide on the slide rail, for by the two-dimentional rock sample being horizontally arranged by sample introduction Region is transported to test zone;
Longitudinal loading mechanism is fixed on the top of the test zone of the chassis (10), with the two dimension pressurization water flowing mechanism phase It is mutually staggered, generally liftable structure;
Wherein, when transporting the two-dimentional rock sample, the longitudinal direction loading mechanism and two dimension pressurization water flowing mechanism are risen;Two After dimension rock sample is transported to test zone, the longitudinal direction loading mechanism and two dimension pressurization water flowing mechanism are fallen, respectively to fortune It send to the two-dimentional rock sample of test zone and applies the extruding force of longitudinal force and horizontal direction.
8. two dimension rock sample seepage flow test device according to claim 7, which is characterized in that the longitudinal direction loading mechanism (40) include:
The four columns (41) being fixed on above chassis test zone;
The motor mounting plate (42) being fixed at the top of the four columns;
It is fixed on above the motor mounting plate, and extends downwardly four first longitudinal direction lifting motors (43) of output threaded rod; And
The double-deck loading frame (44) including relative position fixed upper load plate (44a) and lower load plate (44b) adds under described The lower surface of support plate (44b) is fixed with armorplate glass (45);
Wherein, four corner locations of upper load plate (44a) offer sliding eye, and four columns pass through four sliding eyes, to this Upper load plate (44a) slides up and down offer limit, output of the upper load plate (44a) in four first longitudinal direction lifting motors The corresponding position of threaded rod offers threaded hole, and the output threaded rod of four first longitudinal direction lifting motors is screwed into corresponding spiral shell In pit, in the driven situation of four first longitudinal direction lifting motors, four output threaded rods push the double-deck load frame Frame slide downward is pushed down the two-dimentional rock sample of lower section by the armorplate glass (45).
9. two dimension rock sample seepage flow test device according to claim 7, which is characterized in that have above the chassis Two sample introduction regions;
The top of the chassis (10) is equipped with non-interference two sliding rails (11,12) in two perpendicular direction, and this two The starting point of sliding rail (11,12) is respectively described two sample introduction regions, and terminal is test zone.
CN201511021619.1A 2015-12-30 2015-12-30 Two dimension pressurization water flowing mechanism and the two-dimentional rock sample seepage flow test device using it Expired - Fee Related CN105651670B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106645158B (en) * 2017-02-28 2023-06-16 武汉大学 Device and test method for rock mass fracture three-phase flow displacement dispersion capture research
CN106932325B (en) * 2017-05-09 2024-02-09 湖南科技大学 Device and test method for mud-water fluid seepage of rock fracture under action of dynamic and static loads

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3350197B2 (en) * 1993-12-29 2002-11-25 大成建設株式会社 Permeability test equipment and water path exploration method
CN1595098A (en) * 2004-06-24 2005-03-16 石油大学(北京) Rock core gripper for simulating formation multiple stress field coupling action
CN100495063C (en) * 2006-08-26 2009-06-03 西南交通大学 Testing device of magnetic suspension of high-temperature superconductor, and testing method for using the device
CN201685293U (en) * 2010-04-24 2010-12-29 浙江双健布业胶带有限公司 Plate punching device
CN102259260B (en) * 2010-12-21 2014-03-19 吴江市博众精工科技有限公司 Press
CN202210098U (en) * 2011-08-31 2012-05-02 中南大学 Dynamic/dead load-seepage coupling test device for rich-water cracking rock mass
CN203965428U (en) * 2014-06-12 2014-11-26 中国建筑股份有限公司 Native test unit is flowed in a kind of piping
CN104596909B (en) * 2015-01-30 2017-05-31 中国矿业大学 Multidimensional adds the close coupling of unloading multiphase porous media to damage Seepage Experiment method
CN104865177B (en) * 2015-06-18 2017-10-24 重庆大学 A kind of two-dimentional crack rock shearing seepage instrument of large scale

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Experimental research on creep properties of limestone under fluid–solid coupling;Yang Liu et al.;《Environ Earth Sci》;20150115;第73卷;第7011-7018页
二维应力作用下岩石单裂隙渗流规律的实验研究;刘才华等;《岩石力学与工程学报》;20020831;第21卷(第8期);第1194-1198页
大尺度单裂隙介质应力–渗流耦合试验台架及其渗透系数测试研究;满轲等;《岩石力学与工程学报》;20151031;第34卷(第10期);第2064-2072页
岩石剪切-渗流耦合试验机的研发;李芳;《城市建设理论研究》;20151130;第5卷(第31期);第1302-1303页

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