CN205786608U - Pressure-bearing tomography adopts activation and water inrush channel forming process similar test device - Google Patents
Pressure-bearing tomography adopts activation and water inrush channel forming process similar test device Download PDFInfo
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- CN205786608U CN205786608U CN201620412482.6U CN201620412482U CN205786608U CN 205786608 U CN205786608 U CN 205786608U CN 201620412482 U CN201620412482 U CN 201620412482U CN 205786608 U CN205786608 U CN 205786608U
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Abstract
The utility model discloses a kind of pressure-bearing tomography and adopt activation and water inrush channel forming process similar test device, relating to containing fault tectonic coal seam bottom water bursting similar test technical field, it includes test stand, side plate, load plate, clear glass baffle plate, scale model storage chamber, side pressure loading system, vertical load system, Water hydraulic static pressure loading system, signal acquiring and processing system, scale model；In scale model process of deployment, synchronize in precalculated position to bury the multiple information sensors such as stress, displacement, osmotic pressure, temperature underground, distributed fiber grating technology is used to be monitored, test is loaded the horizontal load and uniform vertical vertical load linearly increased with buried depth by side pressure loading system and vertical load system, the real bearing state of coal measure strata can be simulated, directly use hydraulic analogy artesian water, can truly inverting artesian water infiltration in adopting fault activation crack, souring and form the process of water inrush channel, method is simple, process visualization degree is high.
Description
Technical field
This utility model relates to containing fault tectonic coal seam bottom water bursting similar test technical field, is specifically related to a kind of pressure-bearing
Tomography adopts activation and water inrush channel forming process similar test device.
Background technology
Rich coal resources in China, but hosting geological condition is complicated so that and in coal mining, geological disaster happens occasionally.With
The further increase of coal mining depth and mining rate, stope is the tightest by the threat of base plate Ordovician karst water
Weight, particularly containing the stope of fault tectonic, its water-bursting predicting and to prevent and treat problem the most prominent.Water bursting in mine cause through
While Ji loss and casualties, also mine water resource and environment are caused serious pollution and destruction.Therefore, effectively hold back
The generation of mine water disaster processed, it has also become numerous mines common faced by hot issue and technical barrier.
Fault activation gushing water is a kind of important form of mine water inrush, and it has stronger concealment and indefinability, easily
Major disaster, serious threat is caused the safety in production in colliery.During working face extraction, cause face surrounding rock STRESS VARIATION, make
Artesian water under suitable ambient stress by splitting, expansion, through, destroy in water barrier the structural fractures such as tomography while
Lead liter further up, thus induce the generation of mine water disaster.According to statistics, the mine water inrush accident in the whole nation 80% is to be lived by tomography
Change and cause, and the overwhelming majority to be the non-water conductive fault under the conditions of original geology activate under mining influence and the gushing water that induces.
Chinese scholars is studied in terms of base plate fault activation mechanism of water inrush, serves coal mine flood preventing and treating and actively instructs work
With, but along with mining depth, the increase of mining rate, Water Inrush, particularly Water Inrush From Faults In Floor problem is to work surface safety
The impact quickly propelled is day by day serious, and its difficulty of prevention and cure is bigger.Due to fault in floor activation mechanism of water inrush complexity and
The limitation of research means, the research to base plate fault activation mechanism of water inrush and monitoring and prediction thereof is also concentrated mainly on theoretical point
Analysis, numerical simulation and non-fluid structurecoupling similar test aspect, lack the dynamic of base plate fault activation and water inrush channel forming process
Monitoring and visual research, it is impossible to fundamentally predict and prevent and treat and on artesian water, adopt fault activation gushing water so that many mines
Barrier pillar is given over to, the most then because of base plate in order to prevent from fault activation gushing water from having to abandoning the exploitation of a large amount of coal resources
Water threatens and temporarily cannot exploit.
Similar test is the modeling techniques based on the theory of similarity, utilize between things or phenomenon exist similar or
The feature such as similar studies the natural law, it is adaptable to those research fields being difficult to obtain result by theoretical analysis method.Containing disconnected
Layer seat earth formation damage cause inrush through faults process nature on be adopt ore deposit pressure and floor water-bearing rock hydraulic pressure jointly make
Under with, artesian water is led liter band and adopts fault activation destruction band communication and then form evolution and the Catastrophe Process of conduit pipe.By
In the particularity of Water Inrush From Faults In Floor problem, people can not observe that base plate tomography adopts activation and water inrush channel at the scene
Forming process, and during theory analysis, many factors have been done a large amount of simplification.In view of similar test has intuitive by force, flexibly
Property good, efficiency is high, the advantage such as reproducible, and the coal seam bottom water bursting process containing tomography carries out physical simulation, can image,
Reproduce intuitively adopt on artesian water fault crevice produce, extension, through, and finally activation forms the dynamic mistake of conduit pipe
Journey.
In order to liberate substantial amounts of coal resources, ensure the safe mining under safe waterpressure of aquifer containing tomography coal seam on artesian water simultaneously, it is necessary to
The Evolution of fault in floor activation gushing water is carried out similar test research, and analysis pressure-bearing tomography adopts activation and gushing water leads to
The forming process in road, could preferably resolve fault activation mechanism of water inrush, it was predicted that and preventing and treating fault in floor activation gushing water.Cause
This, it is necessary to carry out similar test device and the method for visualizing adopting fault activation and water inrush channel forming process on artesian water
Research, it is achieved contain the safety and high efficiency in tomography coal seam on artesian water.
Utility model content
(1) solve the technical problem that
Technical problem to be solved in the utility model there is provided a kind of pressure-bearing tomography and adopts activation and water inrush channel shape
Become similar process assay device, to overcome existing apparatus cannot simulate the artesian water infiltration corrosion function to floor strata, the most by force
Adjust artesian water that floor strata is washed away osmosis, it is impossible to similar test model entirety carries out the loading of lateral load,
More cannot increase, with buried depth, the stress that its lateral load linearly increases by inverting coal measure strata, it is impossible to simulation study lateral load
Floor strata destruction, crack propagation, through and artesian water are gone forward one by one the problem leading the affecting laws risen；Meanwhile, existing test
Device is mainly used in the simulation study gushing water problem without the complete floor of fault tectonic, for the phase containing fault tectonic Water Inrush
Like simulation, especially adopt research in terms of fault activation and the reproduction of water inrush channel forming process, visualization and be difficult to by existing
Some assay devices are carried out.
(2) technical scheme
For realizing object above, this utility model is achieved by the following technical programs: a kind of pressure-bearing tomography is adopted and lived
Change and water inrush channel forming process similar test device, including test stand (1), side plate (2), load plate (3), clear glass baffle plate
(4), scale model storage chamber (5), side pressure loading system (6), vertical load system (7), Water hydraulic static pressure loading system (8), signal is adopted
Collection processing system (9) and scale model (10), described test stand (1) includes base (1-1), back timber (1-2) and vertical beam (1-3),
Described base (1-1) connects vertical beam (1-3), and described vertical beam (1-3) connects back timber (1-2), and described base (1-1) is upper vertical
Connect and have two side plates (2)；Described clear glass baffle plate (4) includes front clear glass baffle plate (4-1), rear clear glass baffle plate
(4-2), the left vertical groove (4-3) of clear glass baffle plate, the right vertical groove (4-4) of clear glass baffle plate and excavation window (4-5),
Described base (1-1) and side plate (2) connect front clear glass baffle plate (4-1) and rear clear glass baffle plate (4-2), described front saturating
Be respectively provided with on bright glass baffle plate (4-1) and rear clear glass baffle plate (4-2) the left vertical groove (4-3) of clear glass baffle plate and
The right vertical groove (4-4) of clear glass baffle plate, described load plate (3) includes the load plate (3-1) that is vertically arranged and horizontally disposed
Load plate (3-2), the left vertical groove (4-3) of described clear glass baffle plate and the right vertically groove (4-4) of clear glass baffle plate
Width is more than the thickness of the load plate (3-1) being vertically arranged, the vertical groove (4-3) in a described clear glass baffle plate left side and clear glass
It is sealedly connected with, in the right vertical groove (4-4) of baffle plate, the load plate (3-1) being vertically arranged；Described base (1-1), side plate (2),
Front clear glass baffle plate (4-1) and rear clear glass baffle plate (4-2) constitute scale model storage chamber (5), and described vertical beam (1-3) is even
Being connected to side pressure loading system (6), described back timber (1-2) connects vertical load system (7), described scale model storage chamber (5)
The base (1-1) of bottom connects Water hydraulic static pressure loading system (8), and connecting in described scale model storage chamber (5) has scale model
(10), described scale model (10) connects signal acquiring and processing system (9).
Further, described side pressure loading system (6) includes side direction horizontal loading apparatus (6-1), hydraulic oil pipe (6-2),
First three-way valve (6-3), stable-pressure device (6-4), hydraulic valve (6-5) and hydraulic control device (6-6), described vertical beam (1-3)
Connecting and have side direction horizontal loading apparatus (6-1), described side direction horizontal loading apparatus (6-1) connects the load plate being vertically arranged
(3-1) with hydraulic oil pipe (6-2), described hydraulic oil pipe (6-2) connects hydraulic control device (6-6), described hydraulic oil pipe (6-
2) above it is sequentially provided with the first three-way valve (6-3) by side direction horizontal loading apparatus (6-1) to hydraulic control device (6-6) direction, surely
Pressure device (6-4) and hydraulic valve (6-5)；Described side direction horizontal loading apparatus (6-1) includes hydraulic jack (6-1a), piston rod
(6-1b), bulb (6-1c) and cushion block (6-1d), described vertical beam (1-3) connects hydraulic jack (6-1a), described hydraulic jack
(6-1a) connection has hydraulic oil pipe (6-2) and piston rod (6-1b), and described piston rod (6-1b) connects bulb (6-1c), described
Bulb (6-1c) connects cushion block (6-1d).
Further, described vertical load system (7) includes vertical Vertical loading device (7-1), the second hydraulic oil pipe (7-
2), the second three-way valve (7-3), the second stable-pressure device (7-4), the second hydraulic valve (7-5) and the second hydraulic control device (7-
6), described back timber (1-2) connects vertical Vertical loading device (7-1), and described vertical Vertical loading device (7-1) connects water
Load plate (3-2) that plain cloth is put and the second hydraulic oil pipe (7-2), described second hydraulic oil pipe (7-2) connects the second hydraulic pressure control
Device processed (7-6), described second hydraulic oil pipe (7-2) is upper presses vertical Vertical loading device (7-1) to the second hydraulic control device
(7-6) direction is sequentially provided with the second three-way valve (7-3), the second stable-pressure device (7-4) and the second hydraulic valve (7-5)；Described perpendicular
Include the second hydraulic jack (7-1a) to Vertical loading device (7-1), the second piston rod (7-1b), the second bulb (7-1c) and
Second cushion block (7-1d), described back timber (1-2) connects the second hydraulic jack (7-1a), and described second hydraulic jack (7-1a) is even
Being connected to the second hydraulic oil pipe (7-2) and the second piston rod (7-1b), described second piston rod (7-1b) connects the second bulb (7-
1c), described second bulb (7-1c) connects the second cushion block (7-1d).
Further, described Water hydraulic static pressure loading system (8) includes artesian water holding tank (8-1), pressure-bearing porous permeable steel comb (8-
2), high-pressure water pipe (8-3), hydraulic pressure stable-pressure device (8-4), water injection valve (8-5), hydraulic control device (8-6), water tank (8-7), the
Three three-way valve (8-8), draining pressure-relief valve (8-9) and air bleeding valve (8-10), described base (1-1) is provided with artesian water holding tank
(8-1), described artesian water holding tank (8-1) is connected above pressure-bearing porous permeable steel and combs (8-2), described artesian water holding tank
(8-1) connection has exhaustor and high-pressure water pipe (8-3), and described exhaustor is provided with air bleeding valve (8-10), described high-pressure water pipe (8-
3) connection has hydraulic control device (8-6) and water tank (8-7), and described high-pressure water pipe (8-3) is upper near artesian water holding tank (8-1)
Place is provided with hydraulic pressure stable-pressure device (8-4), is provided with the 3rd three-way valve (8-8), described water under high pressure at described high-pressure water pipe (8-3) shunting
It is provided with water injection valve (8-5), described high-pressure water pipe between pipe (8-3) upper 3rd three-way valve (8-8) and hydraulic control device (8-6)
(8-3) it is provided with draining pressure-relief valve (8-9) between upper 3rd three-way valve (8-8) and water tank (8-7).
Further, it is provided with concave step (8-1a), institute at described base (1-1) upper artesian water holding tank (8-1) top
Connecting in stating concave step (8-1a) has pressure-bearing porous permeable steel to comb (8-2), and described pressure-bearing porous permeable steel comb (8-2) is upper the most uniform
Gather and be provided with manhole (8-2a) and cruciate groove (8-2b).
Further, described signal acquiring and processing system (9) includes water inrush precursor information collection and processing system (9-
1), acoustic emission signal collection and processing system (9-2) and apparent resistivity signal acquiring and processing system (9-3)；
Described water inrush precursor information collection and processing system (9-1) include fibre optic sensor arra (9-1a), fiber optic splitter
The PC (9-1d) of device (9-1b), fiber grating demodulation device (9-1c), precursor information collection and process and optical cable (9-1e),
Described fibre optic sensor arra (9-1a) includes optical fiber stress sensor (9-1a1), optical fibre displacement sensor (9-1a2), optical fiber
Osmotic pressure sensor (9-1a3) and fibre optic temperature sensor (9-1a4), described optical fiber stress sensor (9-1a1), fiber optics displacement passes
Sensor (9-1a2), optical fiber osmotic pressure sensor (9-1a3) and fibre optic temperature sensor (9-1a4) are connected by optical cable (9-1e) to be had
Optical fiber splitter (9-1b), described optical fiber splitter (9-1b) is connected by optical cable (9-1e) fiber grating demodulation device (9-
1c), described fiber grating demodulation device (9-1c) connects the PC (9-having precursor information collection with process by optical cable (9-1e)
1d)；
Described acoustic emission signal collection and processing system (9-2) include acoustic emission probe (9-2a), the full information of DS5-16B type
The PC (9-2c) of Analysis of Acoustic Emission Signal instrument (9-2b), acoustic emission signal collection and process and signal transmission wire (9-2d),
Described acoustic emission probe (9-2a), is connected by signal transmission wire (9-2d) and has DS5-16B type full information acoustic emission signal to divide
Analyzer (9-2b), described DS5-16B type full information Analysis of Acoustic Emission Signal instrument (9-2b) is by signal transmission wire (9-2d) even
It is connected to the PC (9-2c) of acoustic emission signal collection and process；
Described apparent resistivity signal acquiring and processing system (9-3) includes network parallel circuit copper plate electrode (9-3a), WBD
Type electrical method of network concurrency instrument (9-3b), the PC (9-3c) of surfer or illustrator software aided drawing, copper enamel-cover is believed
Number transfer wire (9-3d), described network parallel circuit copper plate electrode (9-3a) passes through copper enamel-cover signal transmission wire (9-3d)
Connecting and have WBD type electrical method of network concurrency instrument (9-3b), described WBD type electrical method of network concurrency instrument (9-3b) passes through copper enamel-cover signal
Transfer wire (9-3d) connects the PC (9-3c) having surfer or illustrator software aided drawing.
Further, described scale model (10) includes seat earth (10-1), working seam (10-2), roof
(10-3) with pressure-bearing tomography (10-4), described Water hydraulic static pressure loading system (8) connects seat earth (10-1), described seat earth
(10-1) connection has working seam (10-2), and described working seam (10-2) connects has roof (10-3), at the bottom of described coal seam
Plate (10-1), working seam (10-2) and roof (10-3) side are connected by load plate (3-1) side pressure loading system
(6), described roof (10-3) is connected by load plate (3-2) vertical load system (7), described seat earth (10-
1), it is provided with pressure-bearing tomography (10-4) in working seam (10-2) and roof (10-3)；In described seat earth (10-1)
At least four optical fiber stress sensor (9-1a1) it is embedded with near pressure-bearing tomography (10-4), optical fibre displacement sensor (9-1a2),
Optical fiber osmotic pressure sensor (9-1a3), fibre optic temperature sensor (9-1a4), acoustic emission probe (9-2a) and network parallel circuit copper
Plate electrode (9-3a).
Further, the raw material of described seat earth (10-1) includes fine sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, and cement is all
Intellectual circle, silicone oil and water；The raw material of described working seam (10-2) includes coal dust, Pulvis Talci, Gypsum Fibrosum, vaseline, silicone oil and water；Institute
The raw material stating roof (10-3) includes coarse sand, fine sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, cement, vaseline, silicone oil and water；
The raw material of described pressure-bearing tomography (10-4) includes coarse sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, vaseline, silicone oil, Semen Glycines and water；
Described fine sand particle diameter is less than 2mm, and coarse sand particle diameter is less than 7mm, more than 5mm, and Pulvis Talci fineness is 1250 mesh, Kaolin
Being 400 mesh containing silicon dioxide 45%, fineness, coal particle size is less than 0.1mm, and cement is high-quality white portland cement, intensity
32.5MPa, vaseline is no-toxicity medical level White petrolatum, melting point 45-60 DEG C, and silicone oil is the dimethyl-silicon of viscosity 1500cs
Oil, water is tap water, and Semen Glycines is broken dry Semen Glycines, and lumpiness diameter is less than 2.0mm.
(3) beneficial effect
This utility model provides a kind of pressure-bearing tomography and adopts activation and water inrush channel forming process similar test device, public
Opened a kind of can realistic simulation containing the assay device of tomography coal seam bottom water bursting, its inverting pressure-bearing tomography is adopted and is activated and gushing water
The method of passage forming process is simple, and its process visualization degree is high, uses scale model to test, in model process of deployment
I.e. imbed monitoring device, it is achieved the monitoring of model inner case, process of the test is directly used hydraulic analogy artesian water, it is possible to be true
Simulating artesian water infiltration in adopting fault activation crack, souring, this device vertically can apply uniform vertical load,
Laterally can apply to increase, with buried depth, the horizontal load that its load linearly increases, the real bearing state of coal measure strata can be simulated, prison
Examining system is based on distributed fiber grating technology, it is to avoid artificial form seepage flow crack passage, it is possible to realize stress, displacement, osmotic pressure,
The real-time parallel online acquisition of the multiple informations such as temperature and comprehensive analysis, the reliability of monitoring is high with degree of accuracy.
Accompanying drawing explanation
Fig. 1 is the generalized section that pressure-bearing tomography adopts activation and water inrush channel forming process similar test apparatus structure；
Fig. 2 is the schematic side view that pressure-bearing tomography adopts activation and water inrush channel forming process similar test apparatus structure；
Fig. 3 is that pressure-bearing tomography adopts activation and water inrush channel forming process similar test device clear glass baffle plate and loading
The schematic top plan view of plate structure；
Fig. 4 is that pressure-bearing tomography is adopted on activation and water inrush channel forming process similar test device pressure-bearing porous permeable steel comb
Surface texture schematic diagram；
Fig. 5 is that pressure-bearing tomography is adopted under activation and water inrush channel forming process similar test device pressure-bearing porous permeable steel comb
Surface texture schematic diagram；
Fig. 6 be pressure-bearing tomography adopt activation with water inrush channel forming process similar test device scale model side pressure load,
Vertical loading, Water hydraulic static pressure loading and signals collecting point layout schematic diagram.
In figure:
1, test stand, 1-1, base, 1-2, back timber, 1-3, vertical beam；
2, side plate；
3, load plate, 3-1, the load plate being vertically arranged, 3-2, horizontally disposed load plate；
4, clear glass baffle plate, 4-1, front clear glass baffle plate, 4-2, rear clear glass baffle plate, 4-3, clear glass baffle plate
Left vertical groove, the right vertical groove of 4-4, clear glass baffle plate, 4-5, excavation window；
5, scale model storage chamber；
6, side pressure loading system, 6-1, side direction horizontal loading apparatus, 6-1a, hydraulic jack, 6-1b, piston rod, 6-1c, ball
Head, 6-1d, cushion block；6-2, hydraulic oil pipe, 6-3, the first three-way valve, 6-4, stable-pressure device, 6-5, hydraulic valve, 6-6, hydraulic pressure
Control device；
7, vertical load system, 7-1, vertical Vertical loading device, 7-1a, the second hydraulic jack, 7-1b, the second piston
Bar, 7-1c, the second bulb, 7-1d, the second cushion block；7-2, the second hydraulic oil pipe, 7-3, the second three-way valve, 7-4, the second voltage stabilizing dress
Put, 7-5, the second hydraulic valve, 7-6, the second hydraulic control device；
8, Water hydraulic static pressure loading system, 8-1, artesian water holding tank, 8-1a, concave step, 8-2, pressure-bearing porous permeable steel comb, 8-
2a, manhole, 8-2b, cruciate groove, 8-3, high-pressure water pipe, 8-4, hydraulic pressure stable-pressure device, 8-5, water injection valve, 8-6, hydraulic pressure
Control device, 8-7, water tank, 8-8, the 3rd three-way valve, 8-9, draining pressure-relief valve, 8-10, air bleeding valve；
9, signal acquiring and processing system, 9-1, water inrush precursor information collection and processing system, 9-1a, Fibre Optical Sensor battle array
Row, 9-1a1, optical fiber stress sensor, 9-1a2, optical fibre displacement sensor, 9-1a3, optical fiber osmotic pressure sensor, 9-1a4, optical fiber
Temperature sensor, 9-1b, optical fiber splitter, 9-1c, fiber grating demodulation device, the PC of 9-1d, precursor information collection and process
Machine, 9-1e, optical cable, 9-2, acoustic emission signal collection and processing system, 9-2a, acoustic emission probe, 9-2b, DS5-16B type is believed entirely
Breath Analysis of Acoustic Emission Signal instrument, 9-2c, the PC of acoustic emission signal collection and process, 9-2d, signal transmission wire, 9-3, regard electricity
Resistance rate signal acquiring and processing system, 9-3a, network parallel circuit copper plate electrode, 9-3b, WBD type electrical method of network concurrency instrument, 9-
The PC of 3c, surfer or illustrator software aided drawing, 9-3d, copper enamel-cover signal transmission wire；
10, scale model, 10-1, seat earth, 10-2, working seam, 10-3, roof, 10-4, pressure-bearing tomography.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that described enforcement
Example is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this area
The every other embodiment that those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality new
The scope of type protection.
Shown in Fig. 1～6, including test stand 1, side plate 2, load plate 3, clear glass baffle plate 4, scale model storage chamber
5, side pressure loading system 6, vertical load system 7, Water hydraulic static pressure loading system 8, signal acquiring processing system 9 and scale model 10, institute
Stating test stand 1 and include base 1-1, back timber 1-2 and vertical beam 1-3, described base 1-1 connects has vertical beam 1-3, described vertical beam 1-3 even
Being connected to back timber 1-2, on described base 1-1, there are two side plates 2 vertical connection；Described clear glass baffle plate 4 includes front clear glass
Baffle plate 4-1, rear clear glass baffle plate 4-2, the left vertical groove 4-3 of clear glass baffle plate, the right vertical groove 4-4 of clear glass baffle plate
Connect with excavation window 4-5, described base 1-1 and side plate 2 and have front clear glass baffle plate 4-1 and rear clear glass baffle plate 4-2, institute
State be respectively provided with on front clear glass baffle plate 4-1 and rear clear glass baffle plate 4-2 the left vertical groove 4-3 of clear glass baffle plate and
The right vertical groove 4-4 of clear glass baffle plate, described load plate 3 includes load plate 3-1 that is vertically arranged and horizontally disposed loading
Plate 3-2, the width of the left vertical groove 4-3 of described clear glass baffle plate and the right vertical groove 4-4 of clear glass baffle plate is more than vertical
The thickness of load plate 3-1 arranged, the left vertical groove 4-3 of described clear glass baffle plate and the right vertical groove 4-of clear glass baffle plate
Load plate 3-1 being vertically arranged it is sealedly connected with in 4；Described base 1-1, side plate 2, front clear glass baffle plate 4-1 and rear transparent
Glass baffle plate 4-2 constitutes scale model storage chamber 5, and described vertical beam 1-3 connects side pressure loading system 6, and described back timber 1-2 connects
Having vertical load system 7, the base 1-1 bottom described scale model storage chamber 5 connects Water hydraulic static pressure loading system 8, described similar
Connecting in model storage chamber 5 and have scale model 10, described scale model 10 connects signal acquiring and processing system 9.
Further, described side pressure loading system 6 includes side direction horizontal loading apparatus 6-1, hydraulic oil pipe 6-2, the one or three
Logical valve 6-3, stable-pressure device 6-4, hydraulic valve 6-5 and hydraulic control device 6-6, described vertical beam 1-3 connects has side direction horizontal to add
Carrying and put 6-1, described side direction horizontal loading apparatus 6-1 connects load plate 3-1 being vertically arranged and hydraulic oil pipe 6-2, described
Hydraulic oil pipe 6-2 connects hydraulic control device 6-6, described hydraulic oil pipe 6-2 presses side direction horizontal loading apparatus 6-1 to hydraulic pressure
Control device 6-6 direction and be sequentially provided with the first three-way valve 6-3, stable-pressure device 6-4 and hydraulic valve 6-5；Described side direction horizontal adds
Carrying and put 6-1 and include hydraulic jack 6-1a, piston rod 6-1b, bulb 6-1c and cushion block 6-1d, described vertical beam 1-3 connects hydraulic pressure
Oil cylinder 6-1a, described hydraulic jack 6-1a connect has hydraulic oil pipe 6-2 and piston rod 6-1b, described piston rod 6-1b connection to have ball
Head 6-1c, described bulb 6-1c connect cushion block 6-1d.
Further, described vertical load system 7 includes vertical Vertical loading device 7-1, the second hydraulic oil pipe 7-2, the
Two three-way valve 7-3, the second stable-pressure device 7-4, the second hydraulic valve 7-5 and the second hydraulic control device 7-6, described back timber 1-2
Connect have vertical Vertical loading device 7-1, described vertical Vertical loading device 7-1 connect have horizontally disposed load plate 3-2 and
Second hydraulic oil pipe 7-2, described second hydraulic oil pipe 7-2 connects the second hydraulic control device 7-6, described second hydraulic oil pipe
7-2 is upper is sequentially provided with the second three-way valve 7-3 by vertical Vertical loading device 7-1 to second hydraulic control device 7-6 direction, and second
Stable-pressure device 7-4 and the second hydraulic valve 7-5；Described vertical Vertical loading device 7-1 includes the second hydraulic jack 7-1a, second
Piston rod 7-1b, the second bulb 7-1c and the second cushion block 7-1d, described back timber 1-2 connects the second hydraulic jack 7-1a, described
Second hydraulic jack 7-1a connects the second hydraulic oil pipe 7-2 and the second piston rod 7-1b, and described second piston rod 7-1b connects
Having the second bulb 7-1c, described second bulb 7-1c connects the second cushion block 7-1d.
Further, described Water hydraulic static pressure loading system 8 includes artesian water holding tank 8-1, pressure-bearing porous permeable steel comb 8-2, high
Pressure pipe 8-3, hydraulic pressure stable-pressure device 8-4, water injection valve 8-5, hydraulic control device 8-6, water tank 8-7, the 3rd three-way valve 8-8, row
Water pressure-relief valve 8-9 and air bleeding valve 8-10, described base 1-1 are provided with artesian water holding tank 8-1, described artesian water holding tank 8-1
It is connected above pressure-bearing porous permeable steel comb 8-2, described artesian water holding tank 8-1 connection and has exhaustor and high-pressure water pipe 8-3, institute
Stating exhaustor and be provided with air bleeding valve 8-10, described high-pressure water pipe 8-3 connects hydraulic control device 8-6 and water tank 8-7, described height
At artesian water holding tank 8-1, it is provided with hydraulic pressure stable-pressure device 8-4 on pressure pipe 8-3, is provided with at described high-pressure water pipe 8-3 shunting
3rd three-way valve 8-8, is provided with water injection valve 8-between the upper 3rd three-way valve 8-8 and hydraulic control device 8-6 of described high-pressure water pipe 8-3
5, it is provided with draining pressure-relief valve 8-9 between the upper 3rd three-way valve 8-8 and water tank 8-7 of described high-pressure water pipe 8-3.
Further, on described base 1-1, above artesian water holding tank 8-1, place is provided with concave step 8-1a, described spill
Connecting in step 8-1a and have pressure-bearing porous permeable steel comb 8-2, on described pressure-bearing porous permeable steel comb 8-2, uniform gathering is provided with circle
Through hole 8-2a and cruciate groove 8-2b.
Further, described signal acquiring and processing system 9 includes water inrush precursor information collection and processing system 9-1, sound
Launch signal acquiring and processing system 9-2 and apparent resistivity signal acquiring and processing system 9-3；
Described water inrush precursor information collection and processing system 9-1 include fibre optic sensor arra 9-1a, optical fiber splitter 9-
The PC 9-1d and optical cable 9-1e of 1b, fiber grating demodulation device 9-1c, precursor information collection and process, described Fibre Optical Sensor
Array 9-1a includes optical fiber stress sensor 9-1a1, optical fibre displacement sensor 9-1a2, optical fiber osmotic pressure sensor 9-1a3 and optical fiber
Temperature sensor 9-1a4, described optical fiber stress sensor 9-1a1, optical fibre displacement sensor 9-1a2, optical fiber osmotic pressure sensor 9-
1a3 and fibre optic temperature sensor 9-1a4 is connected by optical cable 9-1e has optical fiber splitter 9-1b, described optical fiber splitter 9-1b logical
Crossing optical cable 9-1e connection has fiber grating demodulation device 9-1c, described fiber grating demodulation device 9-1c to be connected by optical cable 9-1e
There is the PC 9-1d of precursor information collection and process；
Described acoustic emission signal collection and processing system 9-2 include that acoustic emission probe 9-2a, DS5-16B type full information sound send out
Penetrate the PC 9-2c and signal transmission wire 9-2d of signal analyzer 9-2b, acoustic emission signal collection and process, described acoustic emission
Probe 9-2a, is connected by signal transmission wire 9-2d and has DS5-16B type full information Analysis of Acoustic Emission Signal instrument 9-2b, described
DS5-16B type full information Analysis of Acoustic Emission Signal instrument 9-2b by signal transmission wire 9-2d connect acoustic emission signals collecting with
The PC 9-2c processed；
Described apparent resistivity signal acquiring and processing system 9-3 includes network parallel circuit copper plate electrode 9-3a, WBD type net
The PC 9-3c of network parallel electrical prospecting apparatus 9-3b, surfer or illustrator software aided drawing, the transmission of copper enamel-cover signal is led
Line 9-3d, described network parallel circuit copper plate electrode 9-3a are connected by copper enamel-cover signal transmission wire 9-3d WBD type net
Network parallel electrical prospecting apparatus 9-3b, described WBD type electrical method of network concurrency instrument 9-3b are connected by copper enamel-cover signal transmission wire 9-3d
There is the PC 9-3c of surfer or illustrator software aided drawing.
Further, described scale model 10 includes seat earth 10-1, working seam 10-2, roof 10-3 and holds
Breaking a layer 10-4, described Water hydraulic static pressure loading system 8 connects has seat earth 10-1, described seat earth 10-1 connection to have working seam
10-2, described working seam 10-2 connect roof 10-3, described seat earth 10-1, working seam 10-2 and top, coal seam
Plate 10-3 side is connected by load plate 3-1 has side pressure loading system 6, described roof 10-3 to be connected by load plate 3-2
It is provided with pressure-bearing tomography 10-in having vertical load system 7, described seat earth 10-1, working seam 10-2 and roof 10-3
4；It is embedded with at least four optical fiber stress sensor 9-1a1, light near pressure-bearing tomography (10-4) in described seat earth 10-1
Fine displacement transducer 9-1a2, optical fiber osmotic pressure sensor 9-1a3, fibre optic temperature sensor 9-1a4, acoustic emission probe 9-2a and net
Network parallel circuit copper plate electrode 9-3a.
Further, the raw material of described seat earth (10-1) includes fine sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, and cement is all
Intellectual circle, silicone oil and water；The raw material of described working seam (10-2) includes coal dust, Pulvis Talci, Gypsum Fibrosum, vaseline, silicone oil and water；Institute
The raw material stating roof (10-3) includes coarse sand, fine sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, cement, vaseline, silicone oil and water；
The raw material of described pressure-bearing tomography (10-4) includes coarse sand, Pulvis Talci, Kaolin, Gypsum Fibrosum, vaseline, silicone oil, Semen Glycines and water；
Described fine sand particle diameter is less than 2mm, and coarse sand particle diameter is less than 7mm, more than 5mm, and Pulvis Talci fineness is 1250 mesh, Kaolin
Being 400 mesh containing silicon dioxide 45%, fineness, coal particle size is less than 0.1mm, and cement is high-quality white portland cement, intensity
32.5MPa, vaseline is no-toxicity medical level White petrolatum, melting point 45-60 DEG C, and silicone oil is the dimethyl-silicon of viscosity 1500cs
Oil, water is tap water, and Semen Glycines is broken dry Semen Glycines, and lumpiness diameter is less than 2.0mm.
Time specifically used, comprise the following steps:
1) material mixture ratio: according to the hydrogeologic condition containing tomography working face of coal seam to be simulated and coal seam, roof and floor rock
Layer character, determines seat earth 10-1, working seam 10-2, each rock stratum of roof 10-3 and pressure-bearing tomography 10-4 analog simulation
The proportioning of material, the consumption of various raw materials needed for determining each rock stratum with this；
2) material configuration: according to seat earth 10-1, working seam 10-2, roof 10-3 each layered material component
Character, weighs the various aggregates needed for each layering and cementing agent in strict accordance with ratio, by aggregate and cementing agent mixing and stirring,
Add appropriate mixing water to be sufficiently stirred for, and add silicone oil regulator and stir, vaseline is heated to 45 DEG C～60 DEG C and makes
It melts for liquid, stirs with material mixing rapidly, and loads corresponding analog material container, and Holding Model is laid；
3) model is laid: the seat earth 10-1 simulation material stirred is laid on the bottom of test stand, it depends on
Secondary laying working seam 10-2, roof 10-3 simulation material, and the mica powder that spreading is quantitative between layers, same with this
Time, calculate and determine multiple model monitoring position, in model process of deployment, burying fiber stress underground in multiple predetermined monitoring positions
Sensor 9-1a1, optical fibre displacement sensor 9-1a2, optical fiber osmotic pressure sensor 9-1a3, fibre optic temperature sensor 9-1a4, sound is sent out
Penetrate probe 9-2a and network parallel circuit copper plate electrode 9-3a, after treating that model is laid, according to pressure-bearing tomography 10-4 space bit
Put and occurrence, cut seat earth 10-1, working seam 10-2 and roof 10-3 rock stratum, and then it is disconnected to add filling pressure-bearing
Layer 10-4 simulation material, and it is fixing to carry out compacting；
4) model loads: model to be laid is dried, utilizes the second hydraulic control device 7-6 to control vertical Vertical loading
Device 7-1 applies certain uniform vertical load to the roof 10-3 of scale model 10, utilizes hydraulic control device 6-6 to control
The side direction horizontal loading apparatus 6-1 processed horizontal load laterally applying linearly to increase with buried depth to scale model 10, process of the test
In uniform vertical vertical load keep constant with the linear side direction horizontal load increased, and utilize Water hydraulic static pressure loading system 8 to similar
The bottom of model applies the artesian water of certain well-distributed pressure；
5) model excavation: according to the model likelihood ratio, computation model often walks excavation size, treats that in coal seam, the open-off cut of excavation is steady
After Ding, from open-off cut towards fault trend step excavation, the normal propelling of simulation work surface, until excavation is certain to passing fault
Distance；During excavation simulation, observing Seam Roof And Floor rock deformation, destruction by clear glass baffle plate, tomography wall-rock crack produces
Life, extension, the through and process of tomography country rock seepage flow sudden change formation water inrush channel；
6) Signal acquiring and processing: during excavation simulation, synchronizes to utilize water inrush precursor information acquisition system 9-1, acoustic emission
Base plate tomography surrouding rock stress in signal acquiring system 9-2, apparent resistivity signal acquiring system 9-3 collecting work face progradation,
The Evolution of the information such as displacement, seepage flow, temperature and fault activation crack energy-distributing feature and artesian water oozing in crack
Stream Characteristics of Mutation, and utilize corresponding processing system that the signal gathered is carried out Treatment Analysis；
7) influence factor: change model geology and boundary condition, such as coal seam buried depth, water-bearing layer hydraulic pressure, co-hade, rock stratum
Character and thickness, vertical load and horizontal load, repeat above-mentioned test procedure, and ore deposit pressure, impermeable layer thickness, water-bearing layer are adopted in research
Pressure-bearing tomography is broken by hydraulic pressure, co-hade, mining depth, lateral load, face advanced distance and tomography country rock characteristic parameter
Bad form, gushing water path and the affecting laws of activation mechanism of water inrush, reproduce pressure-bearing tomography under different geology, boundary condition and adopt alive
Change the forming process with water inrush channel.
To sum up, this utility model embodiment have the advantages that disclose one can realistic simulation coal Han tomography
The assay device of layer Water Inrush, it is simple with the method for water inrush channel forming process that its inverting pressure-bearing tomography adopts activation, its mistake
Journey visualization is high, uses scale model to test, i.e. imbeds monitoring device, it is achieved inside model in model process of deployment
The monitoring of situation, directly uses hydraulic analogy artesian water in process of the test, it is possible to true simulation artesian water splits adopting fault activation
Infiltration in gap, souring, this device vertically can apply uniform vertical load, laterally can apply to increase its load with buried depth
The linear horizontal load increased, can simulate the real bearing state of coal measure strata, and monitoring system is based on distributed fiber grating skill
Art, it is to avoid artificial formation seepage flow crack passage, it is possible to the real-time parallel realizing the multiple informations such as stress, displacement, osmotic pressure, temperature exists
Line gathers and comprehensive analysis, and the reliability of monitoring is high with degree of accuracy.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and not necessarily require or imply between these entities or operation
There is relation or the order of any this reality.And, term " includes ", " comprising " or its any other variant are intended to contain
Comprising of lid nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to the technical solution of the utility model to be described, is not intended to limit；Although with reference to aforementioned reality
Execute example this utility model has been described in detail, it will be understood by those within the art that: it still can be to front
State the technical scheme described in each embodiment to modify, or wherein portion of techniques feature is carried out equivalent；And these
Amendment or replacement, do not make the essence of appropriate technical solution depart from spirit and the model of this utility model each embodiment technical scheme
Enclose.
Claims (7)
1. pressure-bearing tomography adopts activation and a water inrush channel forming process similar test device, including test stand (1), side plate
(2), load plate (3), clear glass baffle plate (4) and scale model storage chamber (5), it is characterised in that: also include that side pressure loads system
System (6), vertical load system (7), Water hydraulic static pressure loading system (8), signal acquiring processing system (9) and scale model (10), described
Test stand (1) includes base (1-1), back timber (1-2) and vertical beam (1-3), and described base (1-1) connects vertical beam (1-3), described
Vertical beam (1-3) connects back timber (1-2), and there are two side plates (2) described base (1-1) upper vertical connection；Described clear glass keeps off
Plate (4) includes front clear glass baffle plate (4-1), rear clear glass baffle plate (4-2), the left vertical groove (4-3) of clear glass baffle plate,
The right vertical groove (4-4) of clear glass baffle plate and excavation window (4-5), described base (1-1) and side plate (2) connection have front transparent
Glass baffle plate (4-1) and rear clear glass baffle plate (4-2), described front clear glass baffle plate (4-1) and rear clear glass baffle plate (4-
2) be respectively provided with the left vertical groove (4-3) of clear glass baffle plate and the right vertically groove (4-4) of clear glass baffle plate on, described in add
Support plate (3) includes the load plate (3-1) that is vertically arranged and horizontally disposed load plate (3-2), and a described clear glass baffle plate left side is erected
Width to the right vertical groove (4-4) of groove (4-3) and clear glass baffle plate is more than the thickness of the load plate (3-1) being vertically arranged
It is sealedly connected with perpendicular in degree, the left vertical groove (4-3) of described clear glass baffle plate and the right vertical groove (4-4) of clear glass baffle plate
To the load plate (3-1) arranged；Described base (1-1), side plate (2), front clear glass baffle plate (4-1) and rear clear glass baffle plate
(4-2) constituting scale model storage chamber (5), described vertical beam (1-3) connects side pressure loading system (6), and described back timber (1-2) is even
Being connected to vertical load system (7), the base (1-1) of described scale model storage chamber (5) bottom connects Water hydraulic static pressure loading system
(8), connecting and have scale model (10) in described scale model storage chamber (5), described scale model (10) connects signals collecting
With processing system (9).
Pressure-bearing tomography the most according to claim 1 adopts activation and water inrush channel forming process similar test device, and it is special
Levy and be: described side pressure loading system (6) includes side direction horizontal loading apparatus (6-1), hydraulic oil pipe (6-2), the first three-way valve
(6-3), stable-pressure device (6-4), hydraulic valve (6-5) and hydraulic control device (6-6), described vertical beam (1-3) connects to be had laterally
Horizontal loading apparatus (6-1), described side direction horizontal loading apparatus (6-1) connects the load plate (3-1) and hydraulic pressure being vertically arranged
Oil pipe (6-2), described hydraulic oil pipe (6-2) connects hydraulic control device (6-6), and described hydraulic oil pipe (6-2) is upper by lateral
Horizontal loading apparatus (6-1) to hydraulic control device (6-6) direction is sequentially provided with the first three-way valve (6-3), stable-pressure device (6-4)
With hydraulic valve (6-5)；Described side direction horizontal loading apparatus (6-1) includes hydraulic jack (6-1a), piston rod (6-1b), bulb
(6-1c) with cushion block (6-1d), described vertical beam (1-3) connects hydraulic jack (6-1a), and described hydraulic jack (6-1a) connects to be had
Hydraulic oil pipe (6-2) and piston rod (6-1b), described piston rod (6-1b) connects bulb (6-1c), and described bulb (6-1c) is even
It is connected to cushion block (6-1d).
Pressure-bearing tomography the most according to claim 2 adopts activation and water inrush channel forming process similar test device, and it is special
Levy and be: described vertical load system (7) includes vertical Vertical loading device (7-1), the second hydraulic oil pipe (7-2), the two or three
Logical valve (7-3), the second stable-pressure device (7-4), the second hydraulic valve (7-5) and the second hydraulic control device (7-6), described back timber
(1-2) connection has vertical Vertical loading device (7-1), and described vertical Vertical loading device (7-1) connects horizontally disposed adding
Support plate (3-2) and the second hydraulic oil pipe (7-2), described second hydraulic oil pipe (7-2) connects the second hydraulic control device (7-
6), described second hydraulic oil pipe (7-2) is upper presses vertical Vertical loading device (7-1) to the second hydraulic control device (7-6) direction
It is sequentially provided with the second three-way valve (7-3), the second stable-pressure device (7-4) and the second hydraulic valve (7-5)；Described vertical Vertical loading
Device (7-1) includes the second hydraulic jack (7-1a), the second piston rod (7-1b), the second bulb (7-1c) and the second cushion block (7-
1d), described back timber (1-2) connects the second hydraulic jack (7-1a), and described second hydraulic jack (7-1a) connects the second liquid
Pressuring oil pipe (7-2) and the second piston rod (7-1b), described second piston rod (7-1b) connects the second bulb (7-1c), and described the
Two bulbs (7-1c) connect the second cushion block (7-1d).
Pressure-bearing tomography the most according to claim 1 adopts activation and water inrush channel forming process similar test device, and it is special
Levying and be: described Water hydraulic static pressure loading system (8) includes artesian water holding tank (8-1), pressure-bearing porous permeable steel is combed (8-2), water under high pressure
Pipe (8-3), hydraulic pressure stable-pressure device (8-4), water injection valve (8-5), hydraulic control device (8-6), water tank (8-7), the 3rd three-way valve
(8-8), draining pressure-relief valve (8-9) and air bleeding valve (8-10), described base (1-1) is provided with artesian water holding tank (8-1), described
Artesian water holding tank (8-1) is connected above pressure-bearing porous permeable steel and combs (8-2), and described artesian water holding tank (8-1) connects to be had
Exhaustor and high-pressure water pipe (8-3), described exhaustor is provided with air bleeding valve (8-10), and described high-pressure water pipe (8-3) connects water
Pressure control device (8-6) and water tank (8-7), described high-pressure water pipe (8-3) is upper is provided with hydraulic pressure near artesian water holding tank (8-1) place
Stable-pressure device (8-4), is provided with the 3rd three-way valve (8-8), in described high-pressure water pipe (8-3) at described high-pressure water pipe (8-3) shunting
Water injection valve (8-5), described high-pressure water pipe (8-3) the upper 3rd it is provided with between 3rd three-way valve (8-8) and hydraulic control device (8-6)
Draining pressure-relief valve (8-9) it is provided with between three-way valve (8-8) and water tank (8-7).
Pressure-bearing tomography the most according to claim 4 adopts activation and water inrush channel forming process similar test device, and it is special
Levy and be: described base (1-1) upper artesian water holding tank (8-1) is provided with concave step (8-1a), described concave step at top
(8-1a) connecting in and have pressure-bearing porous permeable steel to comb (8-2), described pressure-bearing porous permeable steel comb (8-2) the most uniform upper gathering is provided with circle
Shape through hole (8-2a) and cruciate groove (8-2b).
Pressure-bearing tomography the most according to claim 1 adopts activation and water inrush channel forming process similar test device, and it is special
Levying and be: described signal acquiring and processing system (9) includes water inrush precursor information collection and processing system (9-1), acoustic emission is believed
Number gather with processing system (9-2) and apparent resistivity signal acquiring and processing system (9-3)；
Described water inrush precursor information collection and processing system (9-1) include fibre optic sensor arra (9-1a), optical fiber splitter (9-
1b), fiber grating demodulation device (9-1c), precursor information collection and the PC (9-1d) of process and optical cable (9-1e), described light
Fiber sensor array (9-1a) includes optical fiber stress sensor (9-1a1), optical fibre displacement sensor (9-1a2), and optical fiber osmotic pressure passes
Sensor (9-1a3) and fibre optic temperature sensor (9-1a4), described optical fiber stress sensor (9-1a1), optical fibre displacement sensor
(9-1a2), optical fiber osmotic pressure sensor (9-1a3) and fibre optic temperature sensor (9-1a4) are connected by optical cable (9-1e) optical fiber
Shunt (9-1b), described optical fiber splitter (9-1b) is connected by optical cable (9-1e) fiber grating demodulation device (9-1c),
Described fiber grating demodulation device (9-1c) connects the PC (9-1d) having precursor information collection with process by optical cable (9-1e)；
Described acoustic emission signal collection and processing system (9-2) include that acoustic emission probe (9-2a), DS5-16B type full information sound are sent out
Penetrate PC (9-2c) and the signal transmission wire (9-2d) of signal analyzer (9-2b), acoustic emission signal collection and process, described
Acoustic emission probe (9-2a), is connected by signal transmission wire (9-2d) and has DS5-16B type full information Analysis of Acoustic Emission Signal instrument
(9-2b), described DS5-16B type full information Analysis of Acoustic Emission Signal instrument (9-2b) is connected by signal transmission wire (9-2d) has
Acoustic emission signal gathers and the PC (9-2c) processed；
Described apparent resistivity signal acquiring and processing system (9-3) includes network parallel circuit copper plate electrode (9-3a), WBD type net
The parallel electrical prospecting apparatus of network (9-3b), the PC (9-3c) of surfer or illustrator software aided drawing, copper enamel-cover signal passes
Transporting line (9-3d), described network parallel circuit copper plate electrode (9-3a) is connected by copper enamel-cover signal transmission wire (9-3d)
Having WBD type electrical method of network concurrency instrument (9-3b), described WBD type electrical method of network concurrency instrument (9-3b) is transmitted by copper enamel-cover signal
Wire (9-3d) connects the PC (9-3c) having surfer or illustrator software aided drawing.
Pressure-bearing tomography the most according to claim 6 adopts activation and water inrush channel forming process similar test device, and it is special
Levy and be: described scale model (10) includes seat earth (10-1), working seam (10-2), roof (10-3) and pressure-bearing
Tomography (10-4), described Water hydraulic static pressure loading system (8) connects seat earth (10-1), and described seat earth (10-1) connects to be had out
Mining coal seam (10-2), described working seam (10-2) connects roof (10-3), described seat earth (10-1), mine coal
Layer (10-2) and roof (10-3) side are connected by load plate (3-1) side pressure loading system (6), described roof
(10-3) there are vertical load system (7), described seat earth (10-1), working seam (10-2) by load plate (3-2) connection
Be provided with pressure-bearing tomography (10-4) in roof (10-3)；Near pressure-bearing tomography (10-4) in described seat earth (10-1)
It is embedded with at least four optical fiber stress sensor (9-1a1), optical fibre displacement sensor (9-1a2), optical fiber osmotic pressure sensor (9-
1a3), fibre optic temperature sensor (9-1a4), acoustic emission probe (9-2a) and network parallel circuit copper plate electrode (9-3a).
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