CN106706883A - Fluid-structure interaction analog simulation test device - Google Patents
Fluid-structure interaction analog simulation test device Download PDFInfo
- Publication number
- CN106706883A CN106706883A CN201611246318.3A CN201611246318A CN106706883A CN 106706883 A CN106706883 A CN 106706883A CN 201611246318 A CN201611246318 A CN 201611246318A CN 106706883 A CN106706883 A CN 106706883A
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- Prior art keywords
- pressure
- scalable
- loading system
- experimental rig
- pressurization
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The invention discloses a fluid-structure interaction analog simulation test device, which comprises a rack, a simulation box body, a vertical direction hydraulic loading system and a horizontal direction hydraulic loading system, wherein the rack comprises a base, an upright post, a cross beam and a guide rail; the base is glidingly arranged on the guide rail through the lower surface; the vertical direction hydraulic loading system comprises a first telescopic pressurization device and an upper pressurizing plate; the first telescopic pressurization device performs vertical pressure loading on the simulation box body through the upper pressurization plate; the horizontal direction hydraulic loading system comprises a second telescopic pressurization device, a pressure resistant plate and a lateral pressurization plate; the pressure resistant plate and the side pressurization plate are respectively arranged at the two ends of the second telescopic pressurization device; the second telescopic pressurization device performs the lateral pressure loading on the simulation box body through the butt joint with the simulation box body through the lateral pressurization plate. The test device has the advantages that the horizontal hydraulic loading is modularized; each module can realize the single pressure control; the precise pressure regulation is realized; the top vertical pressurization is controllable; different depth load of the stratum is simulated; non-uniform pressure can be exerted.
Description
Technical field
The present invention relates to field of coal mining, more particularly to a kind of experimental rig of fluid structurecoupling analog simulation.
Background technology
Prior art is potential to the migration of high-efficiency mining overlying strata, the routed sand of top board water-bearing layer gushing water using rigid two-dimensional model
A series of phenomenons such as risk carry out fluid structurecoupling similarity simulation experiment.
The two-dimensional model cannot truly reflect underground mining stereoscopic three-dimensional space layer position relation；Simple solid material
Analog simulation, it is impossible to realize the process of coal mining water damages such as routed husky, the overlying strata water flowing fractured zone development of solid-liquid coupling, water-bearing layer gushing water
Simulation；Existing analog simulation testing stand is two-dimensional model, is dug lateral pressure, tunnelling and supporting, pit shaft is applied
The aspects such as stress field simulation all seem unable to do what one wishes.
In addition, the seal of existing two-dimensional model is bad, it is impossible to accurate to realize that water-bearing layer is simulated；Rock in simulation process
The macroscopic visual of layer migration is poor, and the acquisition precision of micro-data is relatively low；Fluid can not be along splitting for being formed in mining active process
Clearance flow is moved；Hydraulic pressure and water in water-bearing layer, conduit pipe cannot in time regulate and control and monitor.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of experimental rig of simple and reasonable fluid structurecoupling analog simulation, the stream
Admittedly the experimental rig for coupling analog simulation increases the free degree in width so that width is adjustable, needed with suitable for different experiments
Ask.The horizontal hydraulic pressure load-on module of the experimental rig of the fluid structurecoupling analog simulation, every piece can independent pressure control, realize precisely adjusting
Pressure.Plan vertical controllable, the simulated formation different depth load of pressurization, can apply differential pressure.The fluid structurecoupling analog simulation
The analog unit of experimental rig can advance and pull out, front is visualized using fiberglass, it is easy to observed and recorded.The simulation box
Internal portion is provided with waterproof sealing inner bag, improves experimental precision.
To achieve the above object, the invention provides a kind of experimental rig of fluid structurecoupling analog simulation, including：Stand,
It includes：Base, column, crossbeam and guide rail, the guide rail be located at crossbeam lower section, be it is a plurality of be arranged side by side, the base lead to
Cross setting that its lower surface can slide on the guideway, the upper surface of the base is case supports face；Analog unit, it is
The rectangular shape of top end opening, is connected by screw using detachable wallboard and formed, and the inside of the analog unit has inner bag；
Vertical direction hydraulic loading system, it includes：First scalable pressue device and upper increased pressure board, the upper increased pressure board are arranged on
The lower section of one scalable pressue device, the first scalable pressue device is hung down by upper increased pressure board to the analog unit
Straight pressure-loaded；And horizontal direction hydraulic loading system, it includes：Second scalable pressue device and it is separately positioned on
The pressure-resisting plate and side increased pressure board at two scalable pressue device two ends, the second scalable pressue device are abutted by side increased pressure board
Analog unit carries out lateral pressure loading to it.
Preferably, in above-mentioned technical proposal, guide rail is four for being arranged side by side.
Preferably, in above-mentioned technical proposal, column, base and crossbeam are made using channel-section steel material.
Preferably, in above-mentioned technical proposal, the front of inner bag is made up of fiberglass, and its excess-three face is made up of rubber.
Preferably, in above-mentioned technical proposal, the first scalable pressue device and the second scalable pressue device are pressurization
Oil cylinder.
Preferably, in above-mentioned technical proposal, the first scalable pressue device includes：It is arranged on the top of the analog unit
25 pressurization oil cylinders in center and each 35 oil cylinders of the top both sides for being arranged on the analog unit.
Preferably, in above-mentioned technical proposal, vertical direction hydraulic loading system and horizontal direction hydraulic loading system set altogether
It is equipped with three consoles.
Preferably, in above-mentioned technical proposal, vertical direction hydraulic loading system and horizontal direction hydraulic loading system are also common
It is provided with three accumulators.
Preferably, in above-mentioned technical proposal, the rear of analog unit is additionally provided with auxiliary hydraulic pressure push-pull device at fixed.
Compared with prior art, the present invention has the advantages that：
1st, the width of the experimental rig of the fluid structurecoupling analog simulation is adjustable, and width increases the free degree, it is adaptable to no
With experiment demand.
2nd, the horizontal hydraulic pressure load-on module of the experimental rig of the fluid structurecoupling analog simulation, every piece can independent pressure control, it is real
Now accurate pressure regulation.
3rd, plan vertical controllable, the simulated formation different depth lotus of pressurization of the experimental rig of the fluid structurecoupling analog simulation
Carry, differential pressure can be applied.
4th, the analog unit of the fluid structurecoupling analog simulation is controlled by hydraulic pressure push-pull device at fixed, can be advanced and be pulled out, and front is adopted
Visualized with fiberglass, it is easy to observed and recorded
5th, waterproof sealing inner bag is provided with inside the analog unit of the fluid structurecoupling analog simulation, experimental precision is improved.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the experimental rig of fluid structurecoupling analog simulation of the invention.
Fig. 2 is the main structure diagram of the experimental rig of fluid structurecoupling analog simulation of the invention.
Fig. 3 is the horizontal direction hydraulic loading system structural representation of the experimental rig of fluid structurecoupling analog simulation of the invention
Figure.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
As depicted in figs. 1 and 2, the tool of the experimental rig of the fluid structurecoupling analog simulation according to the specific embodiment of the invention
Body includes：Stand, analog unit 3, vertical direction hydraulic loading system and horizontal direction hydraulic loading system, wherein, simulation box
Body 3 can be arranged in stand what width was moved, can be advanced and be pulled out, with suitable for different experiments demand, simulation
The front of casing 3 is visualized using fiberglass, it is easy to observed and recorded.The inner bag of waterproof sealing is provided with inside the analog unit, is carried
Experimental precision high.Horizontal direction hydraulic loading system is used to carry out lateral pressure loading to analog unit 3, is similar solid-liquid coupling
Simulation material provides lateral stress.Vertical direction hydraulic loading system is used to carry out pressure at right angle loading to analog unit 3, is solid
Liquid coupling similar materials provide vertical stress.Vertical direction hydraulic loading system and horizontal direction hydraulic loading system plus
Pressure is controllable, is additionally provided with three accumulators, reaches stabilization vertical direction hydraulic loading system and horizontal direction hydraulic loading system
The purpose of pressure.
Specifically, stand includes：Base 4, column 2, crossbeam 1 and guide rail 5, wherein, column 2 is arranged on the two of crossbeam 1
End forms cuboid framework supporting construction, and overall length is 2496mm, and width is 1558mm, is highly 2878mm.Guide rail 5 is located at
The lower section of crossbeam 1, be it is a plurality of be arranged side by side, base 4 by being arranged on the guide rail 5 of can sliding of its lower surface, base 4
Upper surface is case supports face, for placing analog unit 3 so that analog unit 3 being capable of being arranged in width movement
In stand, can advance and pull out, with suitable for different experiments demand.Preferably, guide rail 5 is four for being arranged side by side.Column 2
Made using channel-section steel material, centre offers water injection hole.Base 4 is made using channel-section steel material, and with bearing diagonal reinforcement structure.
Crossbeam 1 is no more than 0.5mm using the processing of channel-section steel material, steel plate thickness error used, welds firm firm.
Analog unit 3 is the rectangular shape of top end opening, is connected by screw using detachable wallboard and formed, single side face
It is divided into the row of seven row five, is corresponded with horizontal direction hydraulic loading system.The outside of detachable wallboard is provided with iron block, for even
The scalable pressue device for connecing horizontal direction hydraulic loading system carries out lateral pressure loading.In the inside of analog unit 3 has
Courage, with good waterproof seal, for filling simulation earth formation material, the front of the inner bag is made up of fiberglass, and it is right to be easy to
The observation of simulation, record.Its excess-three face of the inner bag is made up of rubber.Preferably, the length 2000mm of analog unit 3, width
It is 1200mm, is highly 1600mm, disclosure satisfy that the simulation entity of 2000 × 1200 × 1400mm, during experiment, width can be selected
200/400/600/800/1000mm is selected, 200/400/600/800/1000/1200/1400mm can be highly selected.Preferably,
The rear of analog unit 3 is additionally provided with auxiliary hydraulic pressure push-pull device at fixed, for aiding in push-pull maneuver casing, it is existed together with base 4
Slided on the guide rail 5.
Vertical direction hydraulic loading system eliminates the mechanical load modes such as iron block, and system is loaded using electro-hydraulic servo roof pressure
System, simulation overlying rock are until the rock stratum weight of earth's surface.The vertical direction hydraulic loading system is specifically included：First it is scalable plus
Pressure device 9 and upper increased pressure board 6, upper increased pressure board 6 are arranged on the lower section of the first scalable pressue device 9, the first scalable pressurization dress
Put 9 carries out pressure at right angle loading by upper increased pressure board 6 to analog unit 3, vertically should for solid-liquid coupling similar materials are provided
Power.Preferably, the first scalable pressue device 9 is pressurization oil cylinder.Preferably, the first scalable pressue device 9 includes：It is arranged on
25 pressurization oil cylinders of the center of top of analog unit 3 and each 35 oil cylinders of the top both sides for being arranged on analog unit 3, its
In, the 200 × 400mm of each oil cylinder pressurization area of the center of top of analog unit 32, each the 35 of the top both sides of analog unit 3
Individual oil cylinder, each oil cylinder pressurization area is 200 × 200mm2, three group oil cylinder pressure adjustables of the first scalable pressue device 9, OK
Journey 0-250mm, pressure limit 0-10MPa.
As shown in figure 3, horizontal direction hydraulic loading system is separately positioned on the both sides of analog unit 3, using electro-hydraulic servo
The lateral pressure-loaded of level, for solid-liquid coupling similar materials provide lateral stress.The horizontal direction hydraulic loading system has
Body includes：Second scalable pressue device 10 and it is separately positioned on the He of pressure-resisting plate 8 at the two ends of the second scalable pressue device 10
Side increased pressure board 7, the second scalable pressue device 10 abuts the iron block of the detachable wallboard of analog unit 3 by side increased pressure board 7, right
Analog unit 3 carries out lateral pressure loading.Preferably, the second scalable pressue device 10 is pressurization oil cylinder.Preferably, in each side
10 points of 3 second scalable pressue device of analog unit arrange for seven rows five, corresponded with the outside iron block of analog unit 3.
Vertical direction hydraulic loading system and horizontal direction hydraulic loading system are provided with three consoles altogether, control respectively
The pressure of three group oil cylinders, the digital pressure gauge for having each group oil cylinder on console shows the pressure change of each group oil cylinder.Vertical direction
Hydraulic loading system and horizontal direction hydraulic loading system are also provided with three accumulators altogether, reach and stablize three group oil cylinder pressure
Purpose.
Experimentation：Simulated formation material is filled in casing by layered distribution, is contained using water filling device water filling simulation
Water layer.With the horizontal Simulation Study On Pressure confined pressure in horizontal direction hydraulic pulldown both sides, top Simulation Study On Pressure different depth according to demand
Load.When underlying seam is mined out, upper formation can produce crack, and water can prolong under Crevice gold, in fact it could happen that sand phenomenon of bursting.By burying
If sensor in the earth formation spreads out of parameters, and oozes rule under front observation water and carry out regularity summarization.
To sum up, the experimental rig of the fluid structurecoupling analog simulation increases the free degree in width so that width is adjustable, with
Suitable for different experiments demand.The horizontal hydraulic pressure load-on module of the experimental rig of the fluid structurecoupling analog simulation, every piece can be single
Only pressure control, realizes accurate pressure regulation.Plan vertical controllable, the simulated formation different depth load of pressurization, can apply differential pressure.Should
The analog unit of the experimental rig of fluid structurecoupling analog simulation can be advanced and pulled out, and front is visualized using fiberglass, it is easy to
Observed and recorded.Waterproof sealing inner bag is provided with inside the analog unit, experimental precision is improved.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (9)
1. a kind of experimental rig of fluid structurecoupling analog simulation, it is characterised in that including：
Stand, it includes：Base, column, crossbeam and guide rail, the guide rail be located at crossbeam lower section, be it is a plurality of be arranged side by side, institute
State setting that base can be slided by its lower surface on the guideway, the upper surface of the base is case supports face；
Analog unit, it is the rectangular shape of top end opening, is connected by screw using detachable wallboard and formed, the simulation box
The inside of body has inner bag；
Vertical direction hydraulic loading system, it includes：First scalable pressue device and upper increased pressure board, the upper increased pressure board are set
In the lower section of the first scalable pressue device, the first scalable pressue device is entered by upper increased pressure board to the analog unit
Row pressure at right angle is loaded；And
Horizontal direction hydraulic loading system, it includes：Second scalable pressue device and be separately positioned on second it is scalable plus
The pressure-resisting plate and side increased pressure board at pressure device two ends, the second scalable pressue device abut analog unit pair by side increased pressure board
It carries out lateral pressure loading.
2. the experimental rig of fluid structurecoupling analog simulation according to claim 1, it is characterised in that the guide rail is for side by side
Four for setting.
3. the experimental rig of fluid structurecoupling analog simulation according to claim 1, it is characterised in that the column, base
Made using channel-section steel material with crossbeam.
4. the experimental rig of fluid structurecoupling analog simulation according to claim 1, it is characterised in that the front of the inner bag
It is made up of fiberglass, its excess-three face is made up of rubber.
5. the experimental rig of fluid structurecoupling analog simulation according to claim 4, it is characterised in that described first is scalable
Pressue device and the second scalable pressue device are pressurization oil cylinder.
6. the experimental rig of fluid structurecoupling analog simulation according to claim 5, it is characterised in that described first is scalable
Pressue device includes：It is arranged on 25 pressurization oil cylinders of the center of top of the analog unit and is arranged on the simulation box
Each 35 oil cylinders of the top both sides of body.
7. the experimental rig of fluid structurecoupling analog simulation according to claim 6, it is characterised in that the vertical direction liquid
Pressure loading system and horizontal direction hydraulic loading system are provided with three consoles altogether.
8. the experimental rig of fluid structurecoupling analog simulation according to claim 7, it is characterised in that the vertical direction liquid
Pressure loading system and horizontal direction hydraulic loading system are also provided with three accumulators altogether.
9. the experimental rig of fluid structurecoupling analog simulation according to claim 1, it is characterised in that the analog unit
Rear is additionally provided with auxiliary hydraulic pressure push-pull device at fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611246318.3A CN106706883B (en) | 2016-12-29 | 2016-12-29 | The experimental rig of fluid structurecoupling analog simulation |
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|---|---|---|---|
| CN201611246318.3A CN106706883B (en) | 2016-12-29 | 2016-12-29 | The experimental rig of fluid structurecoupling analog simulation |
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| CN106706883A true CN106706883A (en) | 2017-05-24 |
| CN106706883B CN106706883B (en) | 2019-06-25 |
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| CN107957375A (en) * | 2017-10-24 | 2018-04-24 | 江苏师范大学 | A kind of pilot system for testing mobile overlying rock, water-resisting property and temperature change |
| CN108508184A (en) * | 2018-04-09 | 2018-09-07 | 山东科技大学 | A kind of complex conditions seam mining subsidence analog simulation experimental rig and method |
| CN108709806A (en) * | 2018-07-06 | 2018-10-26 | 郑州四维机电装备制造有限公司 | Side guard plate experiment load box assembly and hydraulic bracket test-bed |
| CN112595480A (en) * | 2020-12-07 | 2021-04-02 | 中国矿业大学 | Roadway hydraulic energy-absorbing support analog simulation experiment device |
| CN114235585A (en) * | 2022-01-01 | 2022-03-25 | 天地科技股份有限公司 | Coal rock solid-liquid coupling analog simulation experiment device and use method |
| CN114859017A (en) * | 2022-07-06 | 2022-08-05 | 湖南大学 | Stratum stress field and displacement field control test device and method |
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