CN110044714A - A kind of coal petrography analog material slip casting splitting three-dimensional simulation pilot system - Google Patents
A kind of coal petrography analog material slip casting splitting three-dimensional simulation pilot system Download PDFInfo
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- CN110044714A CN110044714A CN201910396400.1A CN201910396400A CN110044714A CN 110044714 A CN110044714 A CN 110044714A CN 201910396400 A CN201910396400 A CN 201910396400A CN 110044714 A CN110044714 A CN 110044714A
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- 238000007569 slipcasting Methods 0.000 title claims abstract description 90
- 239000000463 material Substances 0.000 title claims abstract description 73
- 239000003245 coal Substances 0.000 title claims abstract description 48
- 238000004088 simulation Methods 0.000 title claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 52
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012800 visualization Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 238000003776 cleavage reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Present invention relates particularly to a kind of coal petrography analog material slip castings to cleave three-dimensional simulation pilot system, including slip casting platform, movable pedestal, Grouting Pipe, grouting system and acoustic emission monitoring system, coal and rock analog material is placed inside slip casting platform, slip casting platform is fixed on the top of movable pedestal, grouting pipe hole is reserved at the top of slip casting platform, one end of Grouting Pipe is connected to grouting system, the other end of Grouting Pipe is passed through grouting pipe hole and is connected to slip casting platform, acoustic emission monitoring system carries out real-time monitoring to the coal and rock analog material being placed on inside slip casting platform, pass through Acoustic Emission location crack propagation position.Cranny development extends situation when the present invention uses the analog material slip casting of Acoustic Emission Real-Time Monitoring coal and rock, and accurate detection coal and rock analog material cleaves the distribution in crack during slip casting.
Description
Technical field
The invention belongs to rock analog material fields, and in particular to a kind of coal petrography analog material slip casting splitting three-dimensional simulation examination
Check system.
Background technique
In the tunneling process of rock stratum, since exploitation destroys, the physical property of rock mass can be destroyed rock stratum roof and floor, thus
Generate the disasters such as roof caving；And if there are pressure water inside rock stratum, can seriously affect the stability of rock mass, to generate gushing water
Accident, therefore select slip casting to carry out long-term reinforcing to rock mass and stablize.Slurry injection technique is widely used rock engineering diaster prevention and control,
In wall rock grouting, after slurries displacement penetration stage, the slurry pressure in slip casting hole wall be will rise rapidly.
When slurry pressure is greater than rock mass damage pressure, cleavage effect can occur to rock mass, cleave generally along vertical
It is carried out in minimum principal stress direction.Crack tip constantly extends, and the crack cleaved by slurries inside rock mass can constantly increase,
Thus grouting pressure declines rapidly, generates splitting phenomena.Moreover, crack internal pressure insists on height of continuing rising, or even meeting as slip casting continues
There is multiple cleaving process.However, slip casting splitting problem may cause the loss of slurries, it is more likely to destroy rockmass
Slip casting is caused to fail to reduce rock mass strength, therefore the coal petrography analog material slip casting for needing to establish complete set cleaves three-dimensional mould
Quasi- pilot system, improves and expands the propagation law in grouting in rock mass splitting crack, provides reliable basis for engineering slip casting etc.,
Slip casting precision is improved, consumption is reduced, guarantees the safety in production of Practical Project.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of coal petrography analog material slip casting splittings
Three-dimensional simulation pilot system, which can carry out slip casting spilt test to coal and rock similar material model is established, and use sound
Cranny development extends situation when emitting the analog material slip casting of real-time monitoring coal and rock, passes through setting grouting pressure and acoustic emission monitor(ing)
Parameter meets different tests demand, and to greatest extent according to physical condition, accurate detection coal and rock analog material is in slip casting
The distribution in crack is cleaved in the process, which cleaves the research of fractured zones and extension especially suitable for grouting in rock mass.
A kind of coal petrography analog material slip casting splitting three-dimensional simulation pilot system, including slip casting platform, movable pedestal, slip casting
Pipe, grouting system and acoustic emission monitoring system；
Coal and rock analog material is placed inside the slip casting platform, the slip casting platform is fixed on the top of movable pedestal, the note
Grouting pipe hole is reserved at the top of slurry platform；
One end of the Grouting Pipe is connected to the grouting system, and the other end of the Grouting Pipe is passed through grouting pipe hole and slip casting
Platform connection；
The acoustic emission monitoring system carries out real-time monitoring to the coal and rock analog material being placed on inside slip casting platform, is sent out by sound
Penetrate positioning crack propagation position.
Preferably, above-mentioned acoustic emission monitoring system by acoustic emission sensor, preamplifier, sound emission acquisition host, can
Depending on changing operating system composition, the input terminal of the acoustic emission sensor and preamplifier is connected, the preamplifier it is defeated
Outlet is connect with the input terminal of sound emission acquisition host, and the output end and visualized operation system of the sound emission acquisition host connect
It connects.
Preferably, above-mentioned coal and rock analog material is prepared by analog material mold；
The analog material mold is made of four pieces of survey templates, one piece of bottom template and two fixed steelframes, the survey template with
Bottom template is vertically arranged, one piece of described one end for surveying template successively fixed company vertical with another piece of described surveys one end of template
It connects, two fixed frames are fixed on the outside of adjacent two pieces of surveys template, and the fixed steelframe is parallel with bottom template sets
It sets.
Preferably, above-mentioned grouting system includes constant pressure pump, slurries bucket, high-pressure nylon pipe, pressure-regulating valve and mobile device；
The constant pressure pump is fixedly connected with mobile device, and the arrival end of the constant pressure pump and the outlet end of slurries bucket pass through high pressure Buddhist nun
Imperial pipe connection, the outlet end of the constant pressure pump are connected to Grouting Pipe, and the pressure-regulating valve is mounted in Grouting Pipe, for adjusting
Grouting pressure.
Preferably, the top of above-mentioned slip casting platform is detachable steel plate, is reserved with grouting pipe hole on the detachable steel plate,
The detachable steel plate is used with slip casting table frame and is threadedly coupled.
Preferably, above-mentioned slip casting platform surrounding is detachably equipped with tempered glass by card slot.
Preferably, above-mentioned slip casting platform is fixedly connected with movable pedestal by card slot, and the lower section of the slip casting platform is equipped with
Groove is welded with the snap-gauge to match above the movable pedestal.
Preferably, above-mentioned Grouting Pipe includes first segment pipeline and the second section pipeline, and the second section pipeline is inserted into rock mass
Portion, and the second section pipeline is steel pipe, the first segment pipeline is stainless steel flexible hose, and the first segment pipeline and the second section pipeline are
It is threadedly coupled.
Compared with prior art, beneficial effects of the present invention:
1, the present invention detect coal and rock analog material slip casting splitting crack by Acoustic Emission Real-Time Monitoring technology, fills out
The research vacancy in rock cranny detection quantization is mended, the perfect research to coal and rock slip casting splitting crack propagation, is coal petrography
The research that body slip casting cleaves crack propagation provides data supporting；
2, the present invention can detecte the splitting crack propagation rule under a variety of grouting pressures, and it is more to fully take into account rock mass internal crack
Kind factor, by the position for changing grouting pressure, adjusting acoustic emission sensor, the accurate coal and rock analog material that detects is in slip casting item
Fracture state is cleaved under part.
3, structure of the invention is stable, highly-safe, and structure is simple, processing cost is small, and installs, disassembly and easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment coal petrography analog material slip casting splitting three-dimensional simulation pilot system.
Fig. 2 is the structural schematic diagram of the present embodiment slip casting platform.
Fig. 3 is the structural schematic diagram of the present embodiment analog material mold.
Fig. 4 is the structural schematic diagram of the present embodiment grouting system.
Fig. 5 is the connection schematic diagram of the present embodiment acoustic emission sensor, amplifier and acquisition host.
In figure: 1, detachable steel plate；2, slip casting platform；3, movable pedestal；4, shifting roller；5, tempered glass；6, slip casting
Pipe；6-1, first segment pipeline；6-2, the second section pipeline；7, grouting system；8, coal petrography analog material；9, pipe hole；10, side form
Plate；11, fixed steelframe；12, end template；13, visualized operation system；14, sound emission acquires host；15, preamplifier；
16, acoustic emission sensor；17, analog material mold；18, constant pressure pump；19, slurries bucket；20, high-pressure nylon pipe；21, pressure is adjusted
Valve；22, mobile device.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to
This.
The purpose of the present embodiment is that overcoming deficiency in the prior art, a kind of coal petrography analog material slip casting splitting three is provided
Simulation experiment system is tieed up, which can carry out slip casting spilt test to coal and rock similar material model is established, and send out using sound
Cranny development extends situation when penetrating real-time monitoring coal and rock analog material slip casting, passes through setting grouting pressure and acoustic emission monitor(ing)
Parameter meets different experiments demand, and to greatest extent according to physical condition, accurate detection coal and rock analog material is in slip casting
The distribution in crack is cleaved in the process.
The coal petrography analog material slip casting of-Fig. 3 referring to Fig.1, the present embodiment cleave three-dimensional simulation pilot system, including slip casting platform
2, movable pedestal 3, Grouting Pipe 6, grouting system 7 and acoustic emission monitoring system 18.The similar material of coal and rock is placed inside slip casting platform 2
Material 8, slip casting platform 2 is fixed on the top of movable pedestal 3, and the bottom of movable pedestal 3 is equipped with shifting roller 4, is moved easily.
The slip casting platform 2 of the present embodiment is fixedly connected with movable pedestal 3 by card slot, and the lower section of slip casting platform 2 is equipped with groove, moves bottom
The top of seat 3 is welded with the snap-gauge to match, and groove is placed on snap-gauge and plays fixed function.The slip casting platform 2 of the present embodiment, can
Mobile base 3 is stainless steel frame, and integral strength is high, and convenient disassembly.
The top of slip casting platform 2 is reserved with grouting pipe hole 9.The top of the slip casting platform 2 of the present embodiment is detachable steel plate 1,
It is reserved with grouting pipe hole 9 on detachable steel plate 1, grouting pipe hole 9 is the circular hole that diameter is about 8cm, detachable steel plate 1 and note
2 frame of platform is starched using threaded connection.2 surrounding of slip casting platform is detachably equipped with tempered glass 5 by card slot.One end of Grouting Pipe 6
It is connected to grouting system 7, the other end of Grouting Pipe 6 is passed through preserved pipeline hole 9 and is connected to slip casting platform 2.
Acoustic emission monitoring system 18 carries out real-time monitoring to the coal and rock analog material 8 being placed on inside slip casting platform 2, passes through
Acoustic Emission location crack propagation position.The present embodiment realizes that sensor starts by the capture setting on computer operation software
To the record of data.When sensor it is collected transmitting-receiving penetrate signal, by cable be recorded in analysis software in, by sound wave
The waveform feature parameter of signal is analyzed (event count, Ring-down count, energy, amplitude etc.), is come with acoustic characteristic parameter real
When characterize rock mass internal rupture degree.
The acoustic emission monitoring system 18 of the present embodiment is by acoustic emission sensor 16, preamplifier 15, sound emission acquisition master
Machine 14, visualized operation system 13 form, and sensor 16 connect with the input terminal of preamplifier 15, preamplifier 15 it is defeated
Outlet is connect with the input terminal of sound emission acquisition host 14, and sound emission acquires the output end and visualized operation system 13 of host 14
Connection.The present embodiment uses the PCIE-8 acoustic emission monitoring system of American Physical acoustics company, and wherein sensor model number is R6a high
Frequency acoustic emission sensor.The connection schematic diagram of acoustic emission sensor, amplifier and acquisition host is referring to Fig. 5.
During slip casting, acoustic emission sensor 16 is in 2 inside analog material test specimen of slip casting platform, 8 surface layout, sound emission
It is micro rupture signal that coal and rock analog material test specimen is generated in slip casting that sensor, which is detected, and is connected with preamplifier 15
It connects and is followed by into sound emission engine control system 14, sound emission real-time data collection in experimentation.The slip casting platform of the present embodiment can
Meet different rock groutings, accurately detects rock cranny distribution.
The coal and rock analog material 8 of the present embodiment is prepared by analog material mold 17.The analog material mold 17 is by four pieces
It surveys 10, one pieces of bottom templates 12 of template and two fixed steelframes 11 forms, survey template 10 and be vertically arranged with bottom template 12, one piece
One end of survey template 10 is successively vertical with one end of another piece of survey template 10 to be fixedly connected, and two fixed frames 11 are fixed on adjacent
The outside of two pieces of survey templates 10, and fixed steelframe 11 is arranged in parallel with bottom template 12.The analog material mold 17 of the present embodiment
The coal and rock similar material model of different materials proportion can be made.
Sound emission monitoring technology is a kind of geophysical prospecting method, is developed for the deformation failure of monitored material bodies
Journey, this method can carry out the real-time continuous dynamic monitoring of overall process, and can carry out three to the position of material bodies internal sabotage
Tie up space-time positioning.By analyzing sound emission signal characteristic, the key message of damage effect process can be obtained, material can be studied and judged
The mechanical behavior of body, the stability and safety of evaluation and prediction material structure, and to material bodies internal rupture phenomenon and process
Comprehensively explained.
During material bodies are destroyed by external force, internal strain can be converted to elastic wave, and pass to surrounding medium
It broadcasts, thereby produces acoustie emission event, represent a micro- breakoff phenomenon.By acoustic emission sensor with certain array be arranged in by
It monitors around body, elastic wave can be captured, and use seismic source location algorithm, calculated, can be carried out by data processing
The three-dimensional space-time for destroying position is shown, it can thus be concluded that time, space and magnitude (space-time is strong) that material bodies implosion occurs, and grind
Sentence material breaks range, development trend and its stability out, and then makes qualitative and quantitative assessment.
At the time of the coordinate of known sensor, elastic wave reach sensor and the spread speed of elastic wave, by equation group,
It can solve to obtain the space coordinate of material breaks position and the moment occurs.
In formula: x, y, z- rupture location coordinate；Moment occurs for t- rupture；xi, yi, zi- i-th receives elastic wave
Sensor coordinates；tiAt the time of-i-th sensor receives elastic wave；Vi- i-th sensor receives the wave of elastic wave
Speed；Wherein i >=4.
Referring to Fig. 4, the grouting system 7 of the present embodiment includes constant pressure pump 18, slurries bucket 19, high-pressure nylon pipe 20, pressure tune
Save valve 21 and mobile device 22.Constant pressure pump 18 is fixedly connected with mobile device 22, arrival end and the slurries bucket 19 of constant pressure pump 18
Outlet end is connected by high-pressure nylon pipe 20, and the outlet end of constant pressure pump 18 is connected to Grouting Pipe 6, and pressure-regulating valve 21 is mounted on note
It starches on pipe 6, for adjusting grouting pressure.In order to guarantee safety, the connecting pipe of the present embodiment is all made of high-pressure nylon pipe company
It connects.The present embodiment grouting pressure in grouting system reaches as high as 20Mpa, can meet the grouting pressure of most of rock-like materials
Range, and the grouting system of the present embodiment is provided with mobile device, it is easy to operate.
The Grouting Pipe 6 of the present embodiment includes that first segment pipeline 6-1 and the second section pipeline 6-2, the second section pipeline 6-2 are inserted into rock
Internal portion, and the second section pipeline 6-2 is steel pipe, first segment pipeline 6-1 is stainless steel flexible hose, first segment pipeline 6-1 and the second section
Pipeline 6-2 is to be threadedly coupled.Second section pipeline 6-2 is steel pipe, it is ensured that the pressure of grouting serous fluid is vertical, while 6-1 is not
During rust steel hose ensure that slip casting, the smooth flow of slurries.
The working principle of the present embodiment are as follows: when laboratory carries out slip casting experiment, research and develop different phases because of raw material limitation
Physical simulation experiment is carried out like material substitution raw material.Coal and rock analog material is under pressure constant state when slip casting, injected hole hole wall
Cleavage fracture can be carried out by slurry pressure first, generate the fracture phenomena of macroscopic view, rupture process is constantly to be gathered to pass through by micro rupture
Lead to form crack.The energy that micro rupture generates can be discharged in the form of stress wave, and sound emission can be to this microfissure
It is positioned, to analyze the mode of extension in slip casting splitting crack, accurately detects coal and rock analog material slip casting splitting crack
Distribution.
The present embodiment carries out the specific operation process of rock fracture distribution detection are as follows: certain using analog material Mold Making
The coal and rock analog material test specimen of size, analog material test specimen is put into inside slip casting platform, arranges acoustic emission sensor in similar
Material test specimen surface, arrangement acoustic emission sensor ensure that host software setting in orientation is consistent.Connect sensor and preceding storing
Big device is simultaneously connect with sound emission host.Slurries are configured, slurries are fitted into connection test specimen injected hole in the slurries bucket of grouting pump, are opened
Grouting pump carries out grouting operation, and acoustic emission monitoring system simultaneously generates coal and rock analog material test specimen in slip casting at the same time
Inside acoustic emission signal carry out real-time monitoring positioning.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of coal petrography analog material slip casting cleaves three-dimensional simulation pilot system, it is characterised in that: including slip casting platform (2), removable
Dynamic pedestal (3), Grouting Pipe (6), grouting system (7) and acoustic emission monitoring system (18)；
Coal and rock analog material (8) are placed inside the slip casting platform (2), the slip casting platform (2) is fixed on movable pedestal (3)
Top is reserved with grouting pipe hole (9) at the top of the slip casting platform (2)；
One end of the Grouting Pipe (6) is connected to the grouting system (7), and the other end of the Grouting Pipe (6) is passed through Grouting Pipe
Road hole (9) is connected to slip casting platform (2)；
The acoustic emission monitoring system (18) is supervised in real time to the internal coal and rock analog material (8) of slip casting platform (2) is placed on
It surveys, passes through Acoustic Emission location crack propagation position.
2. coal petrography analog material slip casting according to claim 1 cleaves three-dimensional simulation pilot system, which is characterized in that described
Acoustic emission monitoring system (18) is by acoustic emission sensor (16), preamplifier (15), sound emission acquisition host (14), visualization
Operating system (13) composition, the acoustic emission sensor (16) connect with the input terminal of preamplifier (15), put before described
The output end of big device (15) is connect with the input terminal of sound emission acquisition host (14), the output of sound emission acquisition host (14)
End is connect with visualized operation system (13).
3. coal petrography analog material slip casting according to claim 1 or 2 cleaves three-dimensional simulation pilot system, which is characterized in that
The coal and rock analog material (8) is prepared by analog material mold (17)；
The analog material mold (17) is by four pieces of survey templates (10), one piece of bottom template (12) and two fixed steelframe (11) groups
At, the survey template (10) is vertically arranged with bottom template (12), one piece it is described survey template (10) one end successively with another piece
Described one end for surveying template (10) is vertically fixedly connected, and two fixed frames (11) are fixed on two pieces of adjacent survey templates (10)
Outside, and the fixed steelframe (11) is arranged in parallel with bottom template (12).
4. coal petrography analog material slip casting according to claim 3 cleaves three-dimensional simulation pilot system, which is characterized in that described
Grouting system (7) includes constant pressure pump (18), slurries bucket (19), high-pressure nylon pipe (20), pressure-regulating valve (21) and mobile device
(22)；
The constant pressure pump (18) is fixedly connected with mobile device (22), arrival end and slurries bucket (19) of the constant pressure pump (18)
Outlet end is connected by high-pressure nylon pipe (20), and the outlet end of the constant pressure pump (18) is connected to Grouting Pipe (6), the pressure tune
Section valve (21) is mounted on Grouting Pipe (6), for adjusting grouting pressure.
5. coal petrography analog material slip casting according to claim 1 cleaves three-dimensional simulation pilot system, which is characterized in that described
The top of slip casting platform (2) is detachable steel plate (1), is reserved with grouting pipe hole (9) on the detachable steel plate (1), it is described can
Disassembly steel plate (1) is used with slip casting platform (2) frame and is threadedly coupled.
6. coal petrography analog material slip casting according to claim 5 cleaves three-dimensional simulation pilot system, which is characterized in that described
Slip casting platform (2) surrounding is detachably equipped with tempered glass (5) by card slot.
7. coal petrography analog material slip casting according to claim 1 cleaves three-dimensional simulation pilot system, which is characterized in that described
Slip casting platform (2) be fixedly connected with movable pedestal (3) by card slot, the lower section of the slip casting platform (2) is equipped with groove, it is described can
Mobile base is welded with the snap-gauge to match above (3).
8. coal petrography analog material slip casting according to claim 1 cleaves three-dimensional simulation pilot system, which is characterized in that described
Grouting Pipe (6) includes first segment pipeline (6-1) and the second section pipeline (6-2), and the second section pipeline (6-2) is inserted into rock mass
Portion, and the second section pipeline (6-2) is steel pipe, the first segment pipeline (6-1) is stainless steel flexible hose, the first segment pipeline (6-
1) and the second section pipeline (6-2) is to be threadedly coupled.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112798474A (en) * | 2020-12-18 | 2021-05-14 | 西安科技大学 | Method and device for monitoring rock mass grouting diffusion range |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007010473A (en) * | 2005-06-30 | 2007-01-18 | Nittoc Constr Co Ltd | Position measuring method of base rock injection material |
| CN107525541A (en) * | 2017-08-04 | 2017-12-29 | 中国矿业大学 | A kind of hypotonicity coal and rock splitting infiltration coupling grouting experimental rig and method |
| CN108195682A (en) * | 2018-03-02 | 2018-06-22 | 华北科技学院 | For the experimental rig and its test method of the research of coal petrography tunnel mesomechanics |
| CN208420541U (en) * | 2018-05-30 | 2019-01-22 | 山东科技大学 | A kind of cooperative inverse system of nontransparent test piece three-dimensional crack propagation process |
| CN109541182A (en) * | 2018-12-28 | 2019-03-29 | 山东科技大学 | A kind of Visual retrieval crack grouting simulation test device and test method |
| CN210442204U (en) * | 2019-05-14 | 2020-05-01 | 西安科技大学 | Coal rock similar material slip casting splitting three-dimensional simulation test system |
-
2019
- 2019-05-14 CN CN201910396400.1A patent/CN110044714A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007010473A (en) * | 2005-06-30 | 2007-01-18 | Nittoc Constr Co Ltd | Position measuring method of base rock injection material |
| CN107525541A (en) * | 2017-08-04 | 2017-12-29 | 中国矿业大学 | A kind of hypotonicity coal and rock splitting infiltration coupling grouting experimental rig and method |
| CN108195682A (en) * | 2018-03-02 | 2018-06-22 | 华北科技学院 | For the experimental rig and its test method of the research of coal petrography tunnel mesomechanics |
| CN208420541U (en) * | 2018-05-30 | 2019-01-22 | 山东科技大学 | A kind of cooperative inverse system of nontransparent test piece three-dimensional crack propagation process |
| CN109541182A (en) * | 2018-12-28 | 2019-03-29 | 山东科技大学 | A kind of Visual retrieval crack grouting simulation test device and test method |
| CN210442204U (en) * | 2019-05-14 | 2020-05-01 | 西安科技大学 | Coal rock similar material slip casting splitting three-dimensional simulation test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798474A (en) * | 2020-12-18 | 2021-05-14 | 西安科技大学 | Method and device for monitoring rock mass grouting diffusion range |
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