CN109958420A - Simulate the visual test device and test method that stope of coal mines tunnel crack develops - Google Patents
Simulate the visual test device and test method that stope of coal mines tunnel crack develops Download PDFInfo
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- CN109958420A CN109958420A CN201910197783.XA CN201910197783A CN109958420A CN 109958420 A CN109958420 A CN 109958420A CN 201910197783 A CN201910197783 A CN 201910197783A CN 109958420 A CN109958420 A CN 109958420A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
Abstract
Simulate the visual test device that stope of coal mines tunnel crack develops, including vacuum barrel, transparent mould molding box and particle are evenly distributed with case, vacuum barrel includes upper cover and staving, pressure tester and pump-line are installed on upper lid, the upper end of pump-line is connected with vacuum pump, transparent mould molding box is mounted on bottom centre in staving, particle is evenly distributed with the surface that case is located at transparent mould molding box, the upside of transparent mould molding box is open, the leading flank of transparent mould molding box offers round drainage hole, rectangle water pocket is equipped in transparent mould molding box, rectangle water pocket is connected with drainpipe, the water outlet of drainpipe passes through round drainage hole, the water outlet of drainpipe is equipped with drain valve, the upper side and lower side that particle is evenly distributed with case is open, particle, which is evenly distributed on the downside of case, is fixedly connected with particle dispensing board group, the front and rear sides that particle launches board group are respectively fixedly connected in the front and rear sides of staving On wall.The present invention has the advantages that design science, model that is structurally reasonable, facilitating production stope of coal mines roadway surrounding rock structure.
Description
Technical field
The present invention relates to coal mine simulation experimental provision fields, specifically, are related to a kind of simulation stope of coal mines tunnel crack
The visual test device and its test method of evolution.
Background technique
Stope of coal mines roadway surrounding rock helps form composite construction by the top plate and bottom plate of different lithology and two.Tunnel
The mechanical characteristics such as the intensity of each section, stress characteristic are discrepant in country rock composite construction, and only grasp coal petrography bluk recombination
The crack Evolution of structure can just take effective support to realize that roadway surrounding rock is stable and be precisely controlled.
Due to underground engineering environment complexity and be difficult to the restriction of work place study, analog simulation test become realization this
A kind of important scientific research means that the complex engineerings environment such as class ground, geology and mine reproduces.And existing analog simulation test
It can only observation model surface deformation and crack, it is difficult to which satisfaction gos deep into the deformation of roadway surrounding rock universe whole process and crack propagation
Analysis and research.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The object of the present invention is to provide a kind of design science, it is structurally reasonable, facilitate production stope of coal mines roadway surrounding rock structure
Model simulation stope of coal mines tunnel crack develop visual test device and its test method.
To achieve the above object, the present invention adopts the following technical scheme:
The visual test device that stope of coal mines tunnel crack develops is simulated, including vacuum barrel, transparent mould molding box and particle are evenly distributed with
Case, vacuum barrel include upper cover and staving, pressure tester and pump-line are equipped on upper lid, the lower end of pump-line is extend into
Inside vacuum barrel, the upper end of pump-line is connected with vacuum pump, and upper cover, staving, transparent mould molding box and particle are evenly distributed with case and are
Bright material is made, and the shape that transparent mould molding box and particle are evenly distributed with case is hollow rectangular parallelepiped structure, and transparent mould molding box is fixedly mounted
The bottom centre in staving, particle are evenly distributed with case and are mounted on staving internal upper part and are located at the surface of transparent mould molding box, see-through model
The upside of case is open, and round drainage hole is offered in the middle part of the leading flank of transparent mould molding box, is equipped in transparent mould molding box along front and back water
Square to arrangement rectangle water pocket, rectangle water pocket is connected with drainpipe, and the water outlet of drainpipe passes through round drainage hole and is located at
The water outlet in the outside of bright model casing, drainpipe is equipped with drain valve, and the upper side and lower side that particle is evenly distributed with case is open, and particle is uniformly distributed
It is fixedly connected with particle on the downside of case and launches board group, particle is launched board group and is horizontally disposed with, and particle launches the front and rear sides point of board group
It is not fixedly connected on the front and rear sides inner wall of staving.
It includes upper plate and lower plate that particle, which launches board group, and upper plate and lower plate are horizontally disposed rectangular slab, upper plate and lower plate
Size it is identical, the cross section that particle is evenly distributed with case is less than upper plate, and particle is evenly distributed with the upper surface that upper plate is fixedly connected on the downside of case,
Upper plate is corresponding up and down with lower plate, and lower plate is slidably installed on the staving below upper plate, and the front and rear sides side of upper plate passes through two water respectively
Flushconnection axis is fixedly connected on the front and rear sides inner wall of staving, and the front and rear sides side of lower plate passes through two horizontal sliding axles respectively
It is slidably connected on the front and rear sides inner wall of staving, two of front side stretch out horizontal sliding axle front end the front side of staving, rear side
Two horizontal sliding shaft rear ends stretch out the rear side of staving, are uniformly provided with several upper dispensing through-holes on upper plate, uniformly open in lower plate
Equipped with several lower dispensing through-holes, when upper plate and lower plate are just aligned up and down, each upper dispensing through-hole and each lower dispensing through-hole phase
It is mutually staggered, when lower plate forward slip is staggered with upper plate, each upper dispensing through-hole is upper and lower one by one with each lower dispensing through-hole respectively
It is corresponding.
Upper dispensing through-hole and lower dispensing through-hole are rectangular opening.
It is tightly connected between drainpipe and round drainage hole, pump-line is equipped with air valve.
Simulate the test method for the visual test device that stope of coal mines tunnel crack develops, comprising the following steps:
(1) the configuration simulation bottom plate in transparent mould molding box；
(2) configuration is located at the simulation coal seam at the top of simulation bottom plate in transparent mould molding box；
(3) configuration is located at the simulation top plate at the top of simulation coal seam in transparent mould molding box；
(4) transparent mould molding box is taken out out of vacuum barrel；
(5) pressure, observation simulation coal mine are applied to simulation bottom plate prepared in transparent mould molding box, simulation coal seam and simulation top plate
Stope drift active workings crack evolutionary process.
Step (1) specifically: transparent mould molding box is placed on to the staving bottom centre of vacuum barrel, then to transparent mould molding box
It is middle that the pore liquid for calculating volume is added, upper plate and lower plate are installed, then particle is evenly distributed with the upper surface that case is mounted on upper plate,
Quantitative transparent soil particle is put into particle and is evenly distributed in case, later covers on staving upper cover, vacuum barrel is made to be isolated from the outside world, starting
Vacuum pump, when vacuum degree reaches designated value in the vacuum barrel of pressure tester detection, vacuum pump stops working, and twitches front side
Two horizontal sliding axles make lower plate forward slip a distance, and upper plate is staggered with lower plate, each upper dispensing through-hole respectively with it is each
Lower dispensing through-hole is corresponding up and down one by one, so that transparent soil particle be made uniformly to be evenly distributed in case from particle through upper dispensing through-hole and lower throwing
It puts in the pore liquid that through-hole is scattered in transparent mould molding box, transparent soil particle is interpenetrated with pore liquid merges formation simulation
Bottom plate.
Step (2) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, upper plate and lower plate
Positive alignment, each upper dispensing through-hole are mutually staggered with each lower dispensing through-hole up and down, open upper cover, particle is evenly distributed with case from staving
Then rectangle water pocket is placed on the upper surface middle part of bottom plate by interior taking-up along the longitudinal direction, the front side of rectangle water pocket connects drainpipe,
Drainpipe passes through round drainage hole, its water outlet is made to be located at the outside of transparent mould molding box, then is added and calculates into transparent mould molding box
The pore liquid of good volume, is evenly distributed with the upper surface that case is mounted on upper plate for particle later, and quantitative transparent soil particle is put into
In the uniformly distributed case of grain, upper cover is covered on staving later, vacuum barrel is made to be isolated from the outside world, starts vacuum pump, when pressure tester is examined
When vacuum degree reaches designated value in the vacuum barrel of survey, vacuum pump stops working, and twitches two horizontal sliding axles of front side, makes lower plate
Forward slip a distance, upper plate are staggered with lower plate, and each upper dispensing through-hole is right up and down one by one with each lower dispensing through-hole respectively
It answers, is scattered by upper dispensing through-hole and lower dispensing through-hole into see-through model so that transparent soil particle be made uniformly to be evenly distributed in case from particle
In pore liquid in case, transparent soil particle is interpenetrated with pore liquid merges formation simulation coal seam.
Step (3) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, upper plate and lower plate
Positive alignment, each upper dispensing through-hole are mutually staggered with each lower dispensing through-hole up and down, open upper cover, particle is evenly distributed with case from staving
Interior taking-up, then the pore liquid for calculating volume is added into transparent mould molding box, particle is evenly distributed with case later and is mounted on upper plate
Quantitative transparent soil particle is put into particle and is evenly distributed in case, later covers upper cover on staving by upper surface, makes vacuum barrel and the external world
Isolation starts vacuum pump, and when vacuum degree reaches designated value in the vacuum barrel of pressure tester detection, vacuum pump stops working,
Two horizontal sliding axles for twitching front side, make lower plate forward slip a distance, upper plate is staggered with lower plate, each upper dispensing through-hole
It is corresponding up and down one by one with each lower dispensing through-hole respectively, so that transparent soil particle be made uniformly to be evenly distributed in case from particle through upper dispensing
In through-hole and the lower pore liquid launched on the upside of the simulation coal seam that through-hole is scattered in transparent mould molding box, transparent soil particle and hole
Liquid interpenetrates fusion and forms simulation top plate.
Step (4) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, upper plate and lower plate
Positive alignment, each upper dispensing through-hole are mutually staggered with each lower dispensing through-hole up and down, open upper cover, particle is evenly distributed with case from staving
Interior taking-up, then upper plate and lower plate disassembly are taken out, then transparent mould molding box is taken out, adds rectangle in the upside of transparent mould molding box
Pressing plate.
Step (5) specifically: transparent mould molding box is placed on mechanics machine, then the water in rectangle water pocket is passed through into row
Water pipe discharge, starts mechanics machine, applies pressure to transparent mould molding box, to simulate coal mine roadway excavation, passes through see-through model
The stope of coal mines tunnel crack of case observation simulation develops.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, specifically, of the invention
Transparent mould molding box is placed on bottom centre in the staving of vacuum barrel, and particle is evenly distributed with the surface that case is located at transparent mould molding box, this hair
It is bright successively into transparent mould molding box be added certain volume pore liquid and quantitative transparent soil particle come make bottom plate, top plate with
And the model in coal seam, and stope of coal mines tunnel is simulated by rectangle water pocket, stope of coal mines roadway surrounding rock structure is made with this
Model develops to simulate stope of coal mines tunnel crack.
Artificial synthesized transparent soil particle has physico-mechanical properties similar with the true soil body, and has good transparent
Degree.It is destroyed using transparent native experimental material simulation stope of coal mines roadway deformation, facilitates us and grasp coal and rock composite junction comprehensively
The crack Evolution of structure provides reliable scientific basis for the design of optimization tunnel and arrangement and method for construction.
The visual test device and its test method that simulation stope of coal mines tunnel crack of the invention develops have design
The advantages of model that is scientific, structurally reasonable, facilitating production stope of coal mines roadway surrounding rock structure.
Detailed description of the invention
Fig. 1 is front view of the invention.
Fig. 2 is left view of the invention.
Fig. 3 is upper plate structural schematic diagram of the invention.
Fig. 4 is lower plate structure schematic diagram of the invention.
In figure: 1. transparent mould molding boxes；2. particle is evenly distributed with case；3. upper cover；4. staving；5. pressure tester；6. pump-line；
7. round drainage hole；8. rectangle water pocket；9. drainpipe；10. drain valve；11. upper plate；12. lower plate；13. horizontal connection axis；14.
Horizontal sliding axle；15. through-hole is launched on；16. lower launch through-hole；17. air valve.
Specific embodiment
The following is further explained with reference to the attached drawings the embodiment of the present invention.
As Figure 1-Figure 4, simulation stope of coal mines tunnel crack develop visual test device, including vacuum barrel, thoroughly
Bright model casing 1 and particle are evenly distributed with case 2, and vacuum barrel includes upper cover 3 and staving 4, and pressure tester 5 and pumping are equipped in upper cover 3
Pipeline 6, the lower end of pump-line 6 are extend into inside staving 4, and the upper end of pump-line 6 is connected with vacuum pump, upper cover 3, staving 4,
It is that transparent material is made that transparent mould molding box 1 and particle, which are evenly distributed with case 2, and the shape that transparent mould molding box 1 and particle are evenly distributed with case 2 is
Empty rectangular parallelepiped structure, transparent mould molding box 1 are fixedly mounted on bottom centre in staving 4, and particle is evenly distributed with case 2 and is mounted in staving 4
The upside of portion and the surface for being located at transparent mould molding box 1, transparent mould molding box 1 is open, opens up in the middle part of the leading flank of transparent mould molding box 1
There is round drainage hole 7, is equipped with the rectangle water pocket 8 arranged along anterior-posterior horizontal direction in transparent mould molding box 1, rectangle water pocket 8 is connected with
Drainpipe 9, the water outlet of drainpipe 9 pass through the outside that round drainage hole 7 is located at transparent mould molding box 1, and the water outlet of drainpipe 9 is set
There is drain valve 10, the upper side and lower side that particle is evenly distributed with case 2 is open, and the downside that particle is evenly distributed with case 2 is fixedly connected with particle dispensing
Board group, particle are launched board group and are horizontally disposed with, and the front and rear sides that particle launches board group are respectively fixedly connected in the front and rear sides of staving 4
On inner wall.
Vacuum pump is routine techniques, is not shown in figure.
It includes upper plate 11 and lower plate 12 that particle, which launches board group, and upper plate 11 and lower plate 12 are horizontally disposed rectangular slab, on
Plate 11 is identical with the size of lower plate 12, and the cross section that particle is evenly distributed with case 2 is less than upper plate 11, and particle is evenly distributed with the fixed company in downside of case 2
It connecing in the upper surface of upper plate 11, upper plate 11 is corresponding with about 12 lower plate, and lower plate 12 is slidably installed on the staving 4 of 11 lower section of upper plate, on
The front and rear sides side of plate 11 passes through two horizontal connection axis 13 respectively and is fixedly connected on the front and rear sides inner wall of staving 4, lower plate
12 front and rear sides side passes through two horizontal sliding axles 14 respectively and is slidably connected on the front and rear sides inner wall of staving 4, front side
The front side of staving 4 is stretched out in two horizontal 14 front ends of sliding axle, after two of rear side stretch out staving 4 in horizontal 14 rear end of sliding axle
Side is uniformly provided with several upper dispensing through-holes 15 on upper plate 11, several lower dispensing through-holes 16 is uniformly provided in lower plate 12, when upper
When plate 11 and about 12 lower plate are just aligned, each upper dispensing through-hole 15 is mutually staggered with each lower dispensing through-hole 16, when lower plate 12
When forward slip and upper plate 11 are staggered, each upper dispensing through-hole 15 is corresponding up and down one by one with each lower dispensing through-hole 16 respectively.
Upper dispensing through-hole 15 and lower dispensing through-hole 16 are rectangular opening.
It is tightly connected between drainpipe 9 and round drainage hole 7, pump-line 6 is equipped with air valve 17.
Simulate the test method for the visual test device that stope of coal mines tunnel crack develops, comprising the following steps:
(1) the configuration simulation bottom plate in transparent mould molding box 1；
(2) configuration is located at the simulation coal seam at the top of simulation bottom plate in transparent mould molding box 1；
(3) configuration is located at the simulation top plate at the top of simulation coal seam in transparent mould molding box 1；
(4) transparent mould molding box 1 is taken out out of vacuum barrel；
(5) pressure, observation simulation coal are applied to simulation bottom plate prepared in transparent mould molding box 1, simulation coal seam and simulation top plate
Mine stope drift active workings crack evolutionary process.
Step (1) specifically: transparent mould molding box 1 is placed on to 4 bottom centre of staving of vacuum barrel, then to see-through model
The pore liquid for calculating volume is added in case 1, upper plate 11 and lower plate 12 are installed, then particle is evenly distributed with case 2 and is mounted on upper plate 11
Upper surface, quantitative transparent soil particle is put into particle and is evenly distributed in case 2, upper cover 3 is covered on staving 4 later, makes vacuum barrel
It is isolated from the outside world, starts vacuum pump, when vacuum degree reaches designated value in the vacuum barrel that pressure tester 5 detects, vacuum pump stops
It only works, twitches two horizontal sliding axles 14 of front side, make 12 forward slip a distance of lower plate, upper plate 11 and lower plate 12 are wrong
Open, each upper dispensing through-hole 15 respectively with each lower dispensing through-hole 16 one by one up and down it is corresponding, thus make transparent soil particle uniformly from
Particle is evenly distributed in case 2 to be scattered in the pore liquid in transparent mould molding box 1 by upper dispensing through-hole 15 and lower dispensing through-hole 16, thoroughly
Bright soil particle is interpenetrated with pore liquid merges formation simulation bottom plate.
Step (2) specifically: when simulation bottom plate reaches some strength, push two horizontal sliding axles 14 of front side, make
Lower plate 12 slides backward reset, and upper plate 11 is just being aligned with about 12 lower plate, each upper dispensing through-hole 15 and each lower dispensing through-hole
16 mutually stagger, then transparent soil particle stopping is scattered downwards, opening upper cover 3, and particle is evenly distributed with case 2 out of staving 4 and is taken out, then
Rectangle water pocket 8 is placed on to the upper surface middle part of bottom plate along the longitudinal direction, the front side of rectangle water pocket 8 connects drainpipe 9, drainpipe 9
Across round drainage hole 7, its water outlet is made to be located at the outside of transparent mould molding box 1, then is added into transparent mould molding box 1 and calculates body
Particle is evenly distributed with the upper surface that case 2 is mounted on upper plate 11 later by long-pending pore liquid, and quantitative transparent soil particle is put into particle
In uniformly distributed case 2, upper cover 3 is covered on staving 4 later, vacuum barrel is made to be isolated from the outside world, starts vacuum pump, when pressure tester 5
When vacuum degree reaches designated value in the vacuum barrel of detection, vacuum pump stops working, and twitches two horizontal sliding axles 14 of front side, makes
12 forward slip a distance of lower plate, upper plate 11 are staggered with lower plate 12, and each upper dispensing through-hole 15 leads to each lower launch respectively
Hole 16 is corresponding up and down one by one, so that transparent soil particle be made uniformly to be evenly distributed in case 2 from particle through upper dispensing through-hole 15 and lower dispensing
Through-hole 16 is scattered in the pore liquid in transparent mould molding box 1, and transparent soil particle interpenetrates to merge with pore liquid to form mould
Quasi- coal seam.
Step (3) specifically: when simulation coal seam reaches some strength, push two horizontal sliding axles 14 of front side, make
Lower plate 12 slides backward reset, and upper plate 11 is just being aligned with about 12 lower plate, each upper dispensing through-hole 15 and each lower dispensing through-hole
16 mutually stagger, then transparent soil particle stopping is scattered downwards, opening upper cover 3, and particle is evenly distributed with case 2 out of staving 4 and is taken out, then to
The pore liquid for calculating volume is added in transparent mould molding box 1, particle is evenly distributed with the upper surface that case 2 is mounted on upper plate 11 later,
Quantitative transparent soil particle is put into particle to be evenly distributed in case 2, later covers upper cover 3 on staving 4, make vacuum barrel and it is extraneous every
Absolutely, start vacuum pump, when vacuum degree reaches designated value in the vacuum barrel that pressure tester 5 detects, vacuum pump stops working, and takes out
Two horizontal sliding axles 14 of dynamic front side, make 12 forward slip a distance of lower plate, upper plate 11 is staggered with lower plate 12, each upslide
It is corresponding up and down one by one with each lower dispensing through-hole 16 respectively to put through-hole 15, so that transparent soil particle be made uniformly to be evenly distributed with case 2 from particle
In by it is upper dispensing through-hole 15 and it is lower launch through-hole 16 be scattered in transparent mould molding box 1 simulation coal seam on the upside of pore liquid
In, transparent soil particle is interpenetrated with pore liquid merges formation simulation top plate.
Step (4) specifically: when simulation top plate reaches some strength, push two horizontal sliding axles 14 of front side, make
Lower plate 12 slides backward reset, and upper plate 11 is just being aligned with about 12 lower plate, each upper dispensing through-hole 15 and each lower dispensing through-hole
16 mutually stagger, then transparent soil particle stopping is scattered downwards, open upper cover 3, and particle is evenly distributed with case 2 out of staving 4 and is taken out, then general
Upper plate 11 and the disassembly of lower plate 12 are taken out, and then take out transparent mould molding box 1, add rectangular platen in the upside of transparent mould molding box 1.
Step (5) specifically: transparent mould molding box 1 is placed on mechanics machine, then the water in rectangle water pocket 8 is passed through
Drainpipe 9 is discharged, and starts mechanics machine, applies pressure to transparent mould molding box 1, to simulate coal mine roadway excavation, by transparent
The stope of coal mines tunnel crack of the observation simulation of model casing 1 develops.
Transparent mould molding box 1 of the invention is placed on bottom centre in the staving 4 of vacuum barrel, particle be evenly distributed with case 2 be located at it is transparent
The pore liquid and quantitative transparent soil of certain volume is successively added in the surface of model casing 1, the present invention into transparent mould molding box 1
Particle simulates stope of coal mines tunnel by rectangle water pocket to make bottom plate, top plate and the model in coal seam, makes coal with this
The model of mine surrounding rock of actual mining roadway structure develops to simulate stope of coal mines tunnel crack.
Artificial synthesized transparent soil particle has physico-mechanical properties similar with the true soil body, and has good transparent
Degree.It is destroyed using transparent native experimental material simulation stope of coal mines roadway deformation, facilitates us and grasp coal and rock composite junction comprehensively
The crack Evolution of structure provides reliable scientific basis for the design of optimization tunnel and arrangement and method for construction.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that；Still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (10)
1. simulating the visual test device that stope of coal mines tunnel crack develops, it is characterised in that: including vacuum barrel, see-through model
Case and particle are evenly distributed with case, and vacuum barrel includes upper cover and staving, and pressure tester and pump-line, pump-line are equipped on upper lid
Lower end extend into inside vacuum barrel, the upper end of pump-line is connected with vacuum pump, upper cover, staving, transparent mould molding box and particle
Uniformly distributed case is that transparent material is made, and it is hollow rectangular parallelepiped structure, transparent mould that transparent mould molding box and particle, which are evenly distributed with the shape of case,
Molding box is fixedly mounted on bottom centre in staving, particle be evenly distributed with case be mounted on staving internal upper part and be located at transparent mould molding box just on
The upside of side, transparent mould molding box is open, offers round drainage hole in the middle part of the leading flank of transparent mould molding box, sets in transparent mould molding box
There is the rectangle water pocket along anterior-posterior horizontal direction arrangement, rectangle water pocket is connected with drainpipe, and the water outlet of drainpipe passes through circular row
Water hole is located at the outside of transparent mould molding box, and the water outlet of drainpipe is equipped with drain valve, and the upper side and lower side that particle is evenly distributed with case is spacious
Mouthful, particle, which is evenly distributed on the downside of case, is fixedly connected with particle dispensing board group, and particle is launched board group and is horizontally disposed with, and particle launches board group
Front and rear sides are respectively fixedly connected on the front and rear sides inner wall of staving.
2. the visual test device that simulation stope of coal mines tunnel crack according to claim 1 develops, it is characterised in that:
It includes upper plate and lower plate that particle, which launches board group, and upper plate and lower plate are horizontally disposed rectangular slab, the size phase of upper plate and lower plate
Together, the cross section that particle is evenly distributed with case is less than upper plate, and particle is evenly distributed with the upper surface that upper plate is fixedly connected on the downside of case, and upper plate is under
Plate is corresponding up and down, and lower plate is slidably installed on the staving below upper plate, and the front and rear sides side of upper plate passes through two horizontal connection axis respectively
It is fixedly connected on the front and rear sides inner wall of staving, the front and rear sides side of lower plate passes through two horizontal sliding axles respectively and is slidably connected
On the front and rear sides inner wall of staving, two of front side stretch out horizontal sliding axle front end the front side of staving, two levels of rear side
The rear side that shaft rear end stretches out staving is slided, several upper dispensing through-holes is uniformly provided on upper plate, is uniformly provided in lower plate several
Lower dispensing through-hole, when upper plate and lower plate are just aligned up and down, each upper dispensing through-hole is mutually staggered with each lower dispensing through-hole, when
When lower plate forward slip and upper plate are staggered, each upper dispensing through-hole is corresponding up and down one by one with each lower dispensing through-hole respectively.
3. the visual test device that simulation stope of coal mines tunnel crack according to claim 2 develops, it is characterised in that:
Upper dispensing through-hole and lower dispensing through-hole are rectangular opening.
4. the visual test device that simulation stope of coal mines tunnel crack according to claim 3 develops, it is characterised in that:
It is tightly connected between drainpipe and round drainage hole, pump-line is equipped with air valve.
5. the test method for the visual test device that simulation stope of coal mines tunnel crack develops as described in claim 4,
It is characterized by comprising following steps:
(1) the configuration simulation bottom plate in transparent mould molding box；
(2) configuration is located at the simulation coal seam at the top of simulation bottom plate in transparent mould molding box；
(3) configuration is located at the simulation top plate at the top of simulation coal seam in transparent mould molding box；
(4) transparent mould molding box is taken out out of vacuum barrel；
(5) pressure, observation simulation coal mine are applied to simulation bottom plate prepared in transparent mould molding box, simulation coal seam and simulation top plate
Stope drift active workings crack evolutionary process.
6. the test method for the visual test device that simulation stope of coal mines tunnel crack according to claim 5 develops,
It is characterized by: step (1) specifically: transparent mould molding box is placed on to the staving bottom centre of vacuum barrel, then to transparent mould
The pore liquid for calculating volume is added in molding box, upper plate and lower plate are installed, then particle is evenly distributed with the upper table that case is mounted on upper plate
Quantitative transparent soil particle is put into particle and is evenly distributed in case, later covers upper cover on staving by face, make vacuum barrel and it is extraneous every
Absolutely, start vacuum pump, when vacuum degree reaches designated value in the vacuum barrel of pressure tester detection, vacuum pump stops working, and takes out
Two horizontal sliding axles of dynamic front side, make lower plate forward slip a distance, and upper plate is staggered with lower plate, each upper dispensing through-hole point
It is not corresponding up and down one by one with each lower dispensing through-hole, led to so that transparent soil particle be made uniformly to be evenly distributed in case from particle by upper launch
Hole and lower dispensing through-hole are scattered in the pore liquid in transparent mould molding box, and transparent soil particle is interpenetrated with pore liquid to be merged
Form simulation bottom plate.
7. the test method for the visual test device that simulation stope of coal mines tunnel crack according to claim 6 develops,
It is characterized by: step (2) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, and upper plate is under
Plate is just being aligned up and down, and each upper dispensing through-hole is mutually staggered with each lower dispensing through-hole, opens upper cover, particle is evenly distributed with case from bucket
It takes out in vivo, then rectangle water pocket is placed on to the upper surface middle part of bottom plate along the longitudinal direction, the front side of rectangle water pocket connects draining
Pipe, drainpipe passes through round drainage hole, its water outlet is made to be located at the outside of transparent mould molding box, then meter is added into transparent mould molding box
The pore liquid of volume has been calculated, particle is evenly distributed with the upper surface that case is mounted on upper plate later, quantitative transparent soil particle has been put into
Particle is evenly distributed in case, later covers on staving upper cover, vacuum barrel is made to be isolated from the outside world, and is started vacuum pump, is worked as pressure tester
When vacuum degree reaches designated value in the vacuum barrel of detection, vacuum pump stops working, and two horizontal sliding axles of front side is twitched, under making
Plate forward slip a distance, upper plate are staggered with lower plate, and each upper dispensing through-hole is upper and lower one by one with each lower dispensing through-hole respectively
It is corresponding, it is scattered by upper dispensing through-hole and lower dispensing through-hole into transparent mould so that transparent soil particle be made uniformly to be evenly distributed in case from particle
In pore liquid in molding box, transparent soil particle is interpenetrated with pore liquid merges formation simulation coal seam.
8. the test method for the visual test device that simulation stope of coal mines tunnel crack according to claim 7 develops,
It is characterized by: step (3) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, and upper plate is under
Plate is just being aligned up and down, and each upper dispensing through-hole is mutually staggered with each lower dispensing through-hole, opens upper cover, particle is evenly distributed with case from bucket
It takes out in vivo, then the pore liquid for calculating volume is added into transparent mould molding box, particle is evenly distributed with case later and is mounted on upper plate
Upper surface, quantitative transparent soil particle is put into particle and is evenly distributed in case, later covers upper cover on staving, makes vacuum barrel and outer
Boundary's isolation, starts vacuum pump, and when vacuum degree reaches designated value in the vacuum barrel of pressure tester detection, vacuum pump stops work
Make, twitches two horizontal sliding axles of front side, make lower plate forward slip a distance, upper plate is staggered with lower plate, each upper dispensing
Through-hole is corresponding up and down one by one with each lower dispensing through-hole respectively, so that transparent soil particle be made uniformly to be evenly distributed in case from particle by upper
Launch through-hole and it is lower launch through-hole be scattered in transparent mould molding box simulation coal seam on the upside of pore liquid in, transparent soil particle with
Pore liquid interpenetrates fusion and forms simulation top plate.
9. the test method for the visual test device that simulation stope of coal mines tunnel crack according to claim 8 develops,
It is characterized by: step (4) specifically: two horizontal sliding axles for pushing front side make lower plate slide backward reset, and upper plate is under
Plate is just being aligned up and down, and each upper dispensing through-hole is mutually staggered with each lower dispensing through-hole, opens upper cover, particle is evenly distributed with case from bucket
It takes out in vivo, then upper plate and lower plate disassembly is taken out, then take out transparent mould molding box, add square in the upside of transparent mould molding box
Shape pressing plate.
10. the test method for the visual test device that simulation stope of coal mines tunnel crack according to claim 9 develops,
It is characterized by: step (5) specifically: transparent mould molding box is placed on mechanics machine, then the water in rectangle water pocket is led to
Drainpipe discharge is crossed, mechanics machine is started, pressure is applied to transparent mould molding box, to simulate coal mine roadway excavation, by transparent
The stope of coal mines tunnel crack of model casing observation simulation develops.
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