CN207556459U - Coupling fracturing makes cavity volume Visualizing Test System - Google Patents
Coupling fracturing makes cavity volume Visualizing Test System Download PDFInfo
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- CN207556459U CN207556459U CN201721557014.9U CN201721557014U CN207556459U CN 207556459 U CN207556459 U CN 207556459U CN 201721557014 U CN201721557014 U CN 201721557014U CN 207556459 U CN207556459 U CN 207556459U
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Abstract
The utility model discloses a kind of coupling fracturings to make cavity volume Visualizing Test System, including coal and rock experiment porch, couple fracturing mechanism and visualization measurement mechanism, coal and rock experiment porch includes computer, experimental box and cube analog simulation coal and rock, cylinder is mounted on the side wall and top plate of experimental box, multiple acoustic emission sensors are laid at the marginal position of cube analog simulation coal and rock, pre-plugged has Data Detection layer in cube analog simulation coal and rock, drilling is inwardly offered vertically at the top center of cube analog simulation coal and rock, it couples fracturing mechanism and includes water injection machine, explosive and initiator, visualization measurement mechanism includes wax injector and spatial digitizer, display is connected on computer, timer and prompting device.The utility model can make chamber by coupling fracturing acquisition, and the volume of chamber is made using spatial digitizer visual inspection, obtains the spreading range degree in crack in coupling fracturing, intuitive effective.
Description
Technical field
The utility model belongs to coupling fracturing and makes cavity volume technical field of measurement and test, and in particular to a kind of coupling fracturing makes cavity
Product Visualizing Test System.
Background technology
On the basis of to explosion and water filling independent role mechanism and failure law research, carry out solid under explosion Under Dynamic Load
Coupling fracturing effect is studied in the destruction characteristic research of liquid coupled state coal and rock by the way of theoretical analysis and numerical method, fixed
The degradation of intensity after quantitative evaluation coupling fracturing, but do not have but for the size for implementing to make cavity volume after explosion dynamic load
It measures, it is unclear that make chamber inner case.Existing measure only applies explosion dynamic load on the basis of solid-liquid coupling, quantitative
Change the degradation that assessment couples intensity after fracturing, lack and measured to making the volume of intracavitary and the developmental state in crack.Cause
This, nowadays lacks a kind of coupling fracturing and makes cavity volume Visualizing Test System, makes chamber by coupling fracturing acquisition, utilizes thawing
Wax acquisition make cavity mold type, make the volume of chamber using spatial digitizer visual inspection, obtain the extension in crack in coupling fracturing
Rangeability, it is easy to operate, it is intuitive effective.
Utility model content
The technical problem to be solved by the utility model is to the deficiencies in for the above-mentioned prior art, provide a kind of coupling
Fracturing makes cavity volume Visualizing Test System, novel in design reasonable, chamber can be made by coupling fracturing acquisition, using 3-D scanning
Instrument visual inspection makes the volume of chamber, obtains the spreading range degree in crack in coupling fracturing, easy to operate, intuitive effective, is convenient for
It promotes the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：Coupling fracturing makes cavity volume visualization
Test system, it is characterised in that：Including coal and rock experiment porch, coupling fracturing mechanism and visualization measurement mechanism, the coal petrography
Body experiment porch includes computer, experimental box and the analog simulation coal and rock being arranged in experimental box, the side wall of experimental box and top
It is mounted on plate for applying stressed cylinder to analog simulation coal and rock, cylinder is by cylinder actuator by computer control
System, analog simulation coal and rock is cube analog simulation coal and rock, at the marginal position of the cube analog simulation coal and rock
It is laid with multiple acoustic emission sensors for being used to monitor cube analog simulation coal and rock crack propagation situation, the cube phase
There is Data Detection layer like pre-plugged in simulation coal and rock, erected at the top center of the cube analog simulation coal and rock
Straight inwardly to offer drilling, Data Detection layer is included around the symmetrically arranged multiple sensor modules of drill center, sensor group
Part is carried out by pressure sensor and temperature sensor, pressure sensor, temperature sensor and acoustic emission sensor with computer
Data communicate；
The coupling fracturing mechanism includes the water filling into drilling and is used to adjust the water injection machine of hydraulic parameters, be obtained after water filling
The explosive and the initiator for the explosive that detonates loaded in the cube analog simulation coal and rock of the solid-liquid coupling state obtained, water injection machine
It communicates with calculation machine；
The visualization measurement mechanism includes making the filling wax of chamber described in intracavitary injection filling to making of generating of coupling fracturing
Wax injector and the spatial digitizer for making cavity volume for scanning the filling wax filling, spatial digitizer and wax injector with
Computer communicates；
Display is connected on computer, is sent out for setting crack in the cube analog simulation coal and rock of solid-liquid coupling state
Educate the timer of time and for prompting experimenter's cranny development sufficient prompting device.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The number of the acoustic emission sensor
It is six to measure, and six acoustic emission sensors are respectively the first acoustic emission sensor, the second acoustic emission sensor, third sound hair
Penetrate sensor, falling tone emission sensor, fifth sound emission sensor and the 6th acoustic emission sensor, the first acoustic emission sensor
The two of the intersection edges of the cube analog simulation coal and rock bottom surface and leading flank are separately mounted to the second acoustic emission sensor
At a vertex position, third acoustic emission sensor is mounted on the intersecting of the cube analog simulation coal and rock bottom surface and trailing flank
At the point midway on side, falling tone emission sensor is mounted on the phase of the cube analog simulation coal and rock top surface and leading flank
At the point midway for handing over side, fifth sound emission sensor and the 6th acoustic emission sensor are separately mounted to the similar mould of the cube
At two vertex positions for intending the intersection edges of coal and rock top surface and trailing flank.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The spatial digitizer is hand-held
Formula spatial digitizer.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The depth of the drilling is 0.2h
~0.8h, wherein, h is the length of side of the cube analog simulation coal and rock.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The prompting device for indicator light or
Wireless communication module.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The wireless communication module be with
The gsm module of experimenter's mobile communication or short message cat module.
Above-mentioned coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：The number of plies of the Data Detection layer
For multilayer, the quantity of the cube analog simulation coal and rock is multiple.
The utility model has the following advantages compared with prior art：
1st, the utility model is on the side wall and top plate of experimental box by being respectively provided with cylinder, for analog simulation coal and rock
Apply pressure, convenient for simulating surrounding rock body pressure suffered by practical coal and rock, analog simulation coal and rock is onboard data detection layers
Cube analog simulation coal and rock makes simply, and Data Detection layer is by surrounding the symmetrically arranged multiple sensor groups of drill center
Part forms, and measures the compression of cube analog simulation coal and rock and temperature change is uniform, convenient for promoting the use of.
2nd, the utility model obtains coupling by loading explosive in the cube analog simulation coal and rock of solid-liquid coupling state
What fracturing generated makes chamber, and the crack generated by acoustic emission sensor to coupling fracturing is positioned and counted crack data,
Intracavitary is made in modulation filling wax injection, after wax solidification to be filled, the volume of chamber is made using spatial digitizer acquisition, removes cube phase
Like simulation coal and rock residue after convenient for visual inspection observation crackle propagation direction, expansion depth and spreading range, reliably
Stablize, using effect is good.
In conclusion the utility model is novel in design rationally, chamber can be made by coupling fracturing acquisition, using spatial digitizer
Visual inspection makes the volume of chamber, obtains the spreading range degree in crack in coupling fracturing, easy to operate, intuitive effective, convenient for pushing away
It is wide to use.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is the structure diagram of the utility model coal and rock experiment porch.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the installation relation schematic diagram of the utility model analog simulation coal and rock and acoustic emission sensor.
Fig. 4 is the circuit diagram of the utility model.
Reference sign:
1-experimental box；2-analog simulation coal and rock；3-cylinder；
4-acoustic emission sensor；The acoustic emission sensors of 4-1-first；
The acoustic emission sensors of 4-2-second；4-3-third acoustic emission sensor；
4-4-falling tone emission sensor；4-5-fifth sound emission sensor；
The acoustic emission sensors of 4-6-the 6th；5-Data Detection layer；
6-drilling；7-sensor module；7-1-pressure sensor；
7-2-temperature sensor；8-computer；9-timer；
10-prompting device；11-display；12-water injection machine；
13-cylinder actuator；14-spatial digitizer；15-wax injector.
Specific embodiment
As shown in Figures 1 to 4, coupling fracturing described in the utility model makes cavity volume Visualizing Test System, including coal
Rock mass experiment porch, coupling fracturing mechanism and visualization measurement mechanism, the coal and rock experiment porch include computer 8, experiment
Case 1 and the analog simulation coal and rock 2 being arranged in experimental box 1 are mounted on the side wall and top plate of experimental box 1 for phase
Stressed cylinder 3 is applied like simulation coal and rock 2, cylinder 3 is controlled by cylinder actuator 13 by computer 8, analog simulation coal petrography
Body 2 is cube analog simulation coal and rock, and multiple be used for is laid at the marginal position of the cube analog simulation coal and rock
Monitor the acoustic emission sensor 4 of cube analog simulation coal and rock crack propagation situation, the cube analog simulation coal and rock
Interior pre-plugged has Data Detection layer 5, is inwardly opened up vertically at the top center of the cube analog simulation coal and rock
There is drilling 6, Data Detection layer 5 includes multiple sensor modules 7 around 6 center symmetric settings of drilling, and sensor module 7 is by pressing
Force snesor 7-1 and temperature sensor 7-2, pressure sensor 7-1, temperature sensor 7-2 and acoustic emission sensor 4 with calculating
Machine 8 is into row data communication；
It should be noted that the analog simulation coal similar to its physical characteristic is made according to the physical characteristic of practical coal and rock
Analog simulation coal and rock 2 is arranged in experimental box 1 by rock mass 2, and experimental box 1 uses explosion-proof experimental box in actual use, avoids reality
It tests error and causes unnecessary destruction and loss, be respectively mounted on the side wall and top plate of experimental box 1 for analog simulation coal and rock 2
The purpose for applying stressed cylinder 3 be the practical coal and rock of simulation suffered by surrounding rock body pressure, tally with the actual situation, analog simulation coal
Rock mass 2 is easy for the making of analog simulation coal and rock 2 using the purpose one of cube analog simulation coal and rock, and two are easy in advance
Data Detection layer 5 is laid, in actual use, need to downwards be opened up at 2 top dead center position of analog simulation coal and rock and bore 6 holes, number
It is laid at 6 centrosymmetric positions of drilling according to detection layers 5, convenient for uniform measurement experiment data, data acquisition reliability is high；
In the present embodiment, the number of plies of the Data Detection layer 5 is multilayer；In actual use, according to the propagation characteristic and cube of power
The size of analog simulation coal and rock is not spaced 20cm~30cm and lays a layer data detection layers 5, high certainty of measurement.
In actual use, multiple acoustic emission sensors are laid at the marginal position of the cube analog simulation coal and rock
4, for monitoring cube analog simulation coal and rock crack propagation situation, in the present embodiment, the number of the acoustic emission sensor 4
It is six to measure, six acoustic emission sensors 4 be respectively the first acoustic emission sensor 4-1, the second acoustic emission sensor 4-2,
Third acoustic emission sensor 4-3, falling tone emission sensor 4-4, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor
4-6, the first acoustic emission sensor 4-1 and the second acoustic emission sensor 4-2 are separately mounted to the cube analog simulation coal petrography
At two vertex positions of the intersection edges of body bottom surface and leading flank, third acoustic emission sensor 4-3 is mounted on the cube phase
Like at the point midway of simulation coal and rock bottom surface and the intersection edges of trailing flank, falling tone emission sensor 4-4 is mounted on described vertical
At the point midway of the intersection edges of cube analog simulation coal and rock top surface and leading flank, fifth sound emission sensor 4-5 and the 6th
Acoustic emission sensor 4-6 is separately mounted to two of the intersection edges of the cube analog simulation coal and rock top surface and trailing flank
At vertex position；It ensure that and include three sound on bottom surface, leading flank, top surface and the trailing flank of cube analog simulation coal and rock
Emission sensor utilizes the first acoustic emission sensor 4-1, the second acoustic emission sensor 4-2 and third sound emission positioned at bottom surface
Sensor 4-3 detects cube analog simulation coal and rock internal fissure data from the bottom to top, utilizes the falling tone transmitting positioned at top surface
Sensor 4-4, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6 from top to bottom detect cube analog simulation
Coal and rock internal fissure data, using positioned at the first acoustic emission sensor 4-1 of leading flank, the second acoustic emission sensor 4-2 and
Four acoustic emission sensor 4-4 detect cube analog simulation coal and rock internal fissure data from front to back, using positioned at trailing flank
Third acoustic emission sensor 4-3, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6 are by rear to preceding detection cube
Body analog simulation coal and rock internal fissure data are realized comprehensive to cube analog simulation coal and rock progress crack detection, use
The purpose one of six acoustic emission sensors 4 is the wasting of resources that the use for causing extra acoustic emission sensor 4 is avoided to bring,
Increase cost, while increase the complexity of data processing；Second is that in order to ensure it is comprehensive to cube analog simulation coal and rock into
Row crack detection, Effect on Detecting are good.
The coupling fracturing mechanism include into drilling 6 water filling and for adjust hydraulic parameters water injection machine 12, to water filling
The explosive and the initiator for the explosive that detonates loaded in the cube analog simulation coal and rock of the solid-liquid coupling state obtained afterwards, note
Water dispenser 12 communicates with calculation machine 8；
The visualization measurement mechanism includes making the filling wax of chamber described in intracavitary injection filling to making of generating of coupling fracturing
Wax injector 15 and the spatial digitizer 14 for making cavity volume for scanning the filling wax filling, spatial digitizer 14 and casting
Machine 15 communicates with computer 8；
In the present embodiment, the spatial digitizer 14 is handheld three-dimensional scanner.
It should be noted that adjusting water injection pressure to cube analog simulation coal and rock water filling using water injection machine 12, obtain
The cube analog simulation coal and rock of solid-liquid coupling state, by being loaded in the cube analog simulation coal and rock of solid-liquid coupling state
Explosive, obtain coupling fracturing after formed make chamber, wait make chamber cooling after, using spatial digitizer 14 visually scanning make cavity
Product, spatial digitizer 14 uses handheld three-dimensional scanner, easy to use, and scanning is comprehensive, and acquisition can while making the volume of chamber
Propagation direction, depth and the range of eye slit.
Display 11 is connected on computer 8, is split for setting in the cube analog simulation coal and rock of solid-liquid coupling state
The timer 9 of gap development time and for prompting experimenter's cranny development sufficient prompting device 10.
It should be noted that on computer 8 purpose of connection timer 9 be for setting the cranny development time after water filling,
It in actual use, 9 alternative experimenter's manual record time of timer, avoids delaying or missing experimental period, makes to be formed solid
The cube analog simulation coal and rock of liquid coupled state misses the best opportunity, and the purpose that prompting device 10 is connected on computer 8 is actively
Experimenter is prompted, in the present embodiment, the prompting device 10 is indicator light or wireless communication module；Wherein, the wireless communication
Module be with the gsm module of experimenter's mobile communication or short message cat module, realize the automatic operating of experimental provision.
In the present embodiment, the depth of the drilling 6 is 0.2h~0.8h, wherein, h is the cube analog simulation coal petrography
The length of side of body.
It should be noted that when the depth of drilling 6 is too low or too deep, explosive does not have sufficient explosive effect, easily makes
Into the failure of experiment, the depth of preferred drilling 6 uses 0.6h.
In the present embodiment, the quantity of the cube analog simulation coal and rock is multiple, meets the needs of many experiments.
When the utility model is used, prefabricated multiple cube analog simulation coal and rocks, in cube analog simulation coal and rock
Interior embedded Data Detection layer 5, at the top center of cube analog simulation coal and rock inwardly opens up drilling 6, takes vertically
One cube analog simulation coal and rock is placed in experimental box 1, cylinder actuator 13 is controlled to make experiment using computer 8
The multiple cylinders 3 installed on the side wall and top plate of case 1 apply pressure to the cube analog simulation coal and rock, simulate the reality
Border coal and rock to be simulated is by the pressure of environment rock mass；The cloth at the marginal position of the cube analog simulation coal and rock
If multiple for monitoring the acoustic emission sensor 4 of cube analog simulation coal and rock crack propagation situation, adjusted by water injection machine 12
The pressure parameter of water filling is saved, using the water filling into drilling 6 of water injection machine 12, until the cube analog simulation coal and rock has infiltration
Or water injection pressure reduces, while establishes the communication of water injection machine 12 and computer 8, it is similar to set the cube by timer 9
The time threshold stood after simulation coal and rock water filling, using 9 timing of timer, when the cube analog simulation coal and rock water filling
When time of repose reaches the time threshold of the setting of timer 9 afterwards, computer 8 controls prompting device 10 to prompt experimenter's time of repose
It completes, reaching full growth for the crack of realization water filling fracturing obtains the cube analog simulation coal and rock of solid-liquid coupling state, to solid-liquid
Explosive is loaded in the drilling 6 of the cube analog simulation coal and rock of coupled state, utilizes the initiator detonation explosive, computer 8
Using temperature sensor 7-2 collecting temperature data, gas is obtained during explosion in the cube analog simulation coal petrography of solid-liquid coupling state
Conduction fracturing data in body realize coupling fracturing, and the cube analog simulation coal and rock of the solid-liquid coupling state is through described fried
It is formed after medicine explosion and makes chamber, after chamber cooling is made described in, by wax injector 15 to the filling wax made intracavitary injection and melted, made
Wax liquor makes chamber full of entire described, added with condensation glue in the filling wax, after the filling wax solidification to be added for having condensation glue
The cube analog simulation coal and rock of the solid-liquid coupling state is removed, takes out the filling added with condensation glue for making intracavitary solidification
Wax is labeled and scanned to the filling wax added with condensation glue of solidification using spatial digitizer 14, obtains coupling fracturing production
The raw volume for making chamber, at the same observable solidification added with condensation glue filling wax shape, obtain crack propagation direction,
Spreading range and expansion depth dismantle acoustic emission sensor 4, and computer 8 controls cylinder actuator 13 that cylinder 3 is made to retract, and removes
The residue of the cube analog simulation coal and rock of solid-liquid coupling state in experimental box 1 is replaced cube analog simulation coal and rock, is obtained
Take the difference that explosive is loaded in the drilling 6 of the different pressures parameter of water filling and the cube analog simulation coal and rock of solid-liquid coupling state
Coupling fracturing data caused by unit consumption amount formulate rational coupling fracturing scheme for the later stage and provide foundation.
The above is only the preferred embodiment of the utility model, not the utility model imposed any restrictions, every
Any simple modification, change and the equivalent structure made according to the utility model technical spirit to above example change, still
Belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. coupling fracturing makes cavity volume Visualizing Test System, it is characterised in that：Including coal and rock experiment porch, coupling fracturing machine
Structure and visualization measurement mechanism, the coal and rock experiment porch include computer (8), experimental box (1) and are arranged on experimental box (1)
Interior analog simulation coal and rock (2) is mounted on the side wall and top plate of experimental box (1) for analog simulation coal and rock (2)
Stressed cylinder (3) is applied, cylinder (3) is controlled by cylinder actuator (13) by computer (8), analog simulation coal and rock (2)
For cube analog simulation coal and rock, it is laid at the marginal position of the cube analog simulation coal and rock multiple for monitoring
The acoustic emission sensor (4) of cube analog simulation coal and rock crack propagation situation, in the cube analog simulation coal and rock
Pre-plugged has Data Detection layer (5), is inwardly opened up vertically at the top center of the cube analog simulation coal and rock
There are drilling (6), multiple sensor modules (7) of the Data Detection layer (5) including surrounding drilling (6) center symmetric setting, sensor
Component (7) is by pressure sensor (7-1) and temperature sensor (7-2), pressure sensor (7-1), temperature sensor (7-2) harmony
Emission sensor (4) is with computer (8) into row data communication；
The coupling fracturing mechanism include to the interior water filling of drilling (6) and for adjust hydraulic parameters water injection machine (12), to water filling
The explosive and the initiator for the explosive that detonates loaded in the cube analog simulation coal and rock of the solid-liquid coupling state obtained afterwards, note
Water dispenser (12) communicates with computer (8)；
The visualization measurement mechanism includes the note for making the filling wax that chamber is made described in intracavitary injection filling generated to coupling fracturing
Wax machine (15) and the spatial digitizer (14) for making cavity volume for scanning the filling wax filling, spatial digitizer (14) and note
Wax machine (15) communicates with computer (8)；
Display (11) is connected on computer (8), is split for setting in the cube analog simulation coal and rock of solid-liquid coupling state
The timer (9) of gap development time and for prompting the sufficient prompting device of experimenter's cranny development (10).
2. coupling fracturing described in accordance with the claim 1 makes cavity volume Visualizing Test System, it is characterised in that：The sound emission
The quantity of sensor (4) is six, and six acoustic emission sensors (4) are respectively the first acoustic emission sensor (4-1), the
Two acoustic emission sensors (4-2), third acoustic emission sensor (4-3), falling tone emission sensor (4-4), fifth sound transmitting pass
Sensor (4-5) and the 6th acoustic emission sensor (4-6), the first acoustic emission sensor (4-1) and the second acoustic emission sensor (4-2)
It is separately mounted at two vertex positions of the intersection edges of the cube analog simulation coal and rock bottom surface and leading flank, third sound
Emission sensor (4-3) is mounted on the cube analog simulation coal and rock bottom surface and the point midway of the intersection edges of trailing flank
Place, falling tone emission sensor (4-4) is mounted on the intersection edges of the cube analog simulation coal and rock top surface and leading flank
At point midway, fifth sound emission sensor (4-5) and the 6th acoustic emission sensor (4-6) are separately mounted to the cube phase
Like at two vertex positions of simulation coal and rock top surface and the intersection edges of trailing flank.
3. coupling fracturing described in accordance with the claim 1 makes cavity volume Visualizing Test System, it is characterised in that：The three-dimensional is swept
Instrument (14) is retouched as handheld three-dimensional scanner.
4. coupling fracturing described in accordance with the claim 1 makes cavity volume Visualizing Test System, it is characterised in that：The drilling
(6) depth is 0.2h~0.8h, wherein, h is the length of side of the cube analog simulation coal and rock.
5. coupling fracturing described in accordance with the claim 1 makes cavity volume Visualizing Test System, it is characterised in that：The prompting device
(10) it is indicator light or wireless communication module.
6. make cavity volume Visualizing Test System according to the coupling fracturing described in claim 5, it is characterised in that：The channel radio
Believe that module is and the gsm module of experimenter's mobile communication or short message cat module.
7. coupling fracturing described in accordance with the claim 1 makes cavity volume Visualizing Test System, it is characterised in that：The data inspection
The number of plies for surveying layer (5) is multilayer, and the quantity of the cube analog simulation coal and rock is multiple.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721557014.9U CN207556459U (en) | 2017-11-20 | 2017-11-20 | Coupling fracturing makes cavity volume Visualizing Test System |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721557014.9U CN207556459U (en) | 2017-11-20 | 2017-11-20 | Coupling fracturing makes cavity volume Visualizing Test System |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007784A (en) * | 2017-11-20 | 2018-05-08 | 西安科技大学 | Coupling fracturing makes cavity volume Visualizing Test System and cranny development analysis method |
| CN109738523A (en) * | 2019-01-24 | 2019-05-10 | 西京学院 | A kind of geotechnical engineering wall-rock crack detection method |
| CN114136798A (en) * | 2021-11-29 | 2022-03-04 | 河南理工大学 | Hydraulic pressure-blasting coupling fracturing model experiment system |
-
2017
- 2017-11-20 CN CN201721557014.9U patent/CN207556459U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007784A (en) * | 2017-11-20 | 2018-05-08 | 西安科技大学 | Coupling fracturing makes cavity volume Visualizing Test System and cranny development analysis method |
| CN108007784B (en) * | 2017-11-20 | 2023-06-06 | 西安科技大学 | Coupling fracturing cavity volume visualization test system and fracture development analysis method |
| CN109738523A (en) * | 2019-01-24 | 2019-05-10 | 西京学院 | A kind of geotechnical engineering wall-rock crack detection method |
| CN109738523B (en) * | 2019-01-24 | 2021-09-14 | 西京学院 | Geotechnical engineering surrounding rock crack detection method |
| CN114136798A (en) * | 2021-11-29 | 2022-03-04 | 河南理工大学 | Hydraulic pressure-blasting coupling fracturing model experiment system |
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