CN105842242A - Three-dimensional visualizable simulation method for crack propagation and water burst of tunnel surrounding rock - Google Patents
Three-dimensional visualizable simulation method for crack propagation and water burst of tunnel surrounding rock Download PDFInfo
- Publication number
- CN105842242A CN105842242A CN201610144666.3A CN201610144666A CN105842242A CN 105842242 A CN105842242 A CN 105842242A CN 201610144666 A CN201610144666 A CN 201610144666A CN 105842242 A CN105842242 A CN 105842242A
- Authority
- CN
- China
- Prior art keywords
- model
- crackle
- tunnel
- dimensional
- simulation method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides a three-dimensional visualizable simulation method for crack propagation and water burst of tunnel surrounding rock, belonging to the field of geotechnical engineering simulation testing methods. The simulation method comprises the following steps: (1) soaking a transparent similar material tunnel model into transparent liquid with a same refractive index as the model and employing a uniform LED light source to irradiate the model; (2) arranging a three-dimensional digital image acquisition system at one side or two sides of the model to shoot the three-dimensional image of a crack in the model, wherein an opaque phenomenon occurs where a crack is generated in the process of tunnel excavation and disintegration of surrounding rocks; (3) carrying out real-time acquisition of the whole process of crack propagation and evolution, wherein cracks appearing at a former stage disappear due to filling of the transparent liquid, which prevents influence on observation of cracks appeared at a subsequent stage; and (4) subjecting acquired image sequences to processing and analysis so as to obtain the actual evolution process of three-dimensional crack propagation. The method is capable of actually reproducing the three-dimensional crack propagation of the tunnel surrounding rock, simple to operate, visual in process and reliable in results.
Description
Technical field
The present invention relates to a kind of Geotechnical Engineering simulation experiment method, particularly a kind of tunnel surrounding cracks can spread and country rock gushing water mistake
The D visualized simulation method of journey.
Background technology
In Geotechnical Engineering simulation test field, the real processes obtaining model internal modification and cracks can spread in real time is by engineering
The reliable premise that wall rock destabilization mechanism is studied with stability control techniques.
The method being presently available for detection model propagation of internal cracks mainly has CT scan, supersonic sounding and see-through model test
Deng.First two method not only has a harsher requirement to moulded dimension and mold material, and accuracy of data acquisition and intuitive
Not ideal enough, CT scan can't realize continuous acquisition.Although conventional see-through model experimental technique can obtain the most continuously
The real processes of delivery type internal modification, but once crack, opaque crackle interferes with the collection of follow-up crackle.
Thus, existing various methods all can not obtain the real extension process of model underbead crack in real time.
Summary of the invention
The invention aims to provide a kind of tunnel surrounding cracks can spread and the D visualized simulation side of country rock gushing water process
Method, solves the problem that existing various method all can not obtain the real extension process of model underbead crack in real time, it is achieved to model
The real-time precise acquisition of propagation of internal cracks process, provides reliably with stability control techniques for research tunnel surrounding instability Mechanism
Basic data.
The object of the present invention is achieved like this: the present invention includes tunnel surrounding cracks can spread D visualized simulation method and encloses
Petrosal process water process D visualized simulation method.
Described tunnel surrounding cracks can spread D visualized simulation method step is as follows:
(1) transparent analog material tunnel model is soaked in the transparency liquid with it with identical refractive index, uses simultaneously
Uniform LED light source irradiation model, it is desirable to this transparency liquid neither again will not be notable with see-through model material generation chemical reaction
Affect the physical and mechanical property of material；
(2) in tunnel excavation and country rock rupture process, when crackle produces, will appear from opaque phenomenon, subsequently at this
By the infiltration because of transparency liquid, crackle disappears this opaque crackle, thus avoids affecting the observation of follow-up crackle；At mould
The one or both sides of type arrange three-dimensional digital image acquisition system, are continuously shot model underbead crack and constantly produce and crackle disappearance
3-D view；It is opaque state that described crackle constantly produces state；Described crackle vanishing state is for recovering transparence
State；
(3) use relevant speciality software that the image sequence gathered is processed can intuitively and quantitatively obtain after analyzing
The Three-dimensional Evolution process of model propagation of internal cracks.
Described country rock gushing water process D visualized simulation method step is as follows:
(1) use and see-through model has the transparency liquid of identical refractive index as water bursting sources, use uniform LED simultaneously
Light source irradiation model, it is desirable to this liquid is neither not significantly affected by again the physics of material with see-through model material generation chemical reaction
Mechanical property；
(2) transparent tunnel model is not soaked in transparency liquid before gushing water and is in drying regime, along with the excavation in tunnel encloses
Rock will appear from more and more opaque crackle；After excavation crackle turns on water bursting sources, water source will be along conducting crackle
Flow and make its crackle flowed through disappear；
(3) side at model water bursting sources arranges three-dimensional digital image acquisition system, is continuously shot model during gushing water
Underbead crack, by the 3-D view tailing off more, fading away, uses relevant speciality software process image sequence and analyze
After can intuitively and quantitatively obtain the Three-dimensional Evolution process of gushing water process.
Described see-through model material is the transparent block that physico-mechanical properties is close with rock, and described transparent block is melted
One in quartz, silicon dioxide, silica gel or brittle resin, corresponding transparency liquid requires have phase with see-through model material
With refractive index and the character that not appreciably affects material, described see-through model material be transparent mineral oil, sodium iodide aqueous solution or
One in solution of calcium bromide in water.
Beneficial effect: owing to have employed such scheme, after the crackle produced in transparent material, due to the refraction of gas in crackle
Rate is not mated with the refractive index of transparent material and is made cracks opaque, can adopt accordingly under the irradiation of common LED light source
The stereo-picture of this crackle is obtained with three-dimensional digital image acquisition technique.The follow-up crackle of cracks influence in order to avoid first producing
Observation, with having the transparency liquid filling crackle of identical refractive index with see-through model material before new crackle produces, makes previously to produce
Raw crackle recovers transparent in time, thus realizes the crackle that each moment is newly generated is carried out Real-time Collection.Solve existing its
His method can not obtain a difficult problem for the real extension process of model underbead crack in real time, it is achieved to model propagation of internal cracks process
Real-time precise acquisition, provide reliable basic data for research tunnel surrounding instability Mechanism and stability control techniques.
Advantage:
(1) the three-dimensional extended process of energy true reappearance tunnel surrounding crackle.
(2) the Three-dimensional Evolution process of energy true reappearance tunnel surrounding gushing water.
(3) this analogy method is simple to operate, process directly perceived, reliable results.
(4) cheap relative to device needed for CT scan and supersonic sounding equipment, the method.
Detailed description of the invention
Embodiment: the present invention includes tunnel surrounding cracks can spread D visualized simulation method and country rock gushing water process three-dimensional visible
Change analogy method.
Described tunnel surrounding cracks can spread D visualized simulation method step is as follows:
(1) transparent analog material tunnel model is soaked in the transparency liquid with it with identical refractive index, uses simultaneously
Uniform LED light source irradiation model, it is desirable to this transparency liquid neither again will not be notable with see-through model material generation chemical reaction
Affect the physical and mechanical property of material；
(2) in tunnel excavation and country rock rupture process, when crackle produces, will appear from opaque phenomenon, subsequently at this
By the infiltration because of transparency liquid, crackle disappears this opaque crackle, thus avoids affecting the observation of follow-up crackle；At mould
The one or both sides of type arrange three-dimensional digital image acquisition system, are continuously shot model underbead crack and constantly produce and crackle disappearance
3-D view；It is opaque state that described crackle constantly produces state；Described crackle vanishing state is for recovering transparence
State；
(3) use relevant speciality software that the image sequence gathered is processed can intuitively and quantitatively obtain after analyzing
The Three-dimensional Evolution process of model propagation of internal cracks.
Described country rock gushing water process D visualized simulation method step is as follows:
(1) use and see-through model has the transparency liquid of identical refractive index as water bursting sources, use uniform LED simultaneously
Light source irradiation model, it is desirable to this liquid is neither not significantly affected by again the physics of material with see-through model material generation chemical reaction
Mechanical property；
(2) transparent tunnel model is not soaked in transparency liquid before gushing water and is in drying regime, along with the excavation in tunnel encloses
Rock will appear from more and more opaque crackle；After excavation crackle turns on water bursting sources, water source will be along conducting crackle
Flow and make its crackle flowed through disappear；
(3) side at model water bursting sources arranges three-dimensional digital image acquisition system, is continuously shot model during gushing water
Underbead crack, by the 3-D view tailing off more, fading away, uses relevant speciality software process image sequence and analyze
After can intuitively and quantitatively obtain the Three-dimensional Evolution process of gushing water process.
Described see-through model material is the transparent block that physico-mechanical properties is close with rock, and described transparent block is melted
Quartz, corresponding transparency liquid requires have identical refractive index with see-through model material and not appreciably affect the character of material, institute
The see-through model material stated is transparent mineral oil.
Embodiment 2: described transparent block is silicon dioxide；Described see-through model material is sodium iodide aqueous solution.Other
Same with embodiment 1.
Embodiment 3: described transparent block is silica gel；Described see-through model material is solution of calcium bromide in water.Other is with real
Execute example 1 same.
Embodiment 4: described transparent block is brittle resin.Other is same with embodiment 1.
Claims (2)
1. tunnel surrounding cracks can spread and a D visualized simulation method for country rock gushing water process, is characterized in that: this
Bright include tunnel surrounding cracks can spread D visualized simulation method and country rock gushing water process D visualized simulation method；
Described tunnel surrounding cracks can spread D visualized simulation method step is as follows:
(1) transparent analog material tunnel model is soaked in the transparency liquid with it with identical refractive index, uses simultaneously
Uniform LED light source irradiation model, it is desirable to this transparency liquid neither again will not be notable with see-through model material generation chemical reaction
Affect the physical and mechanical property of material；
(2) in tunnel excavation and country rock rupture process, when crackle produces, will appear from opaque phenomenon, subsequently at this
By the infiltration because of transparency liquid, crackle disappears this opaque crackle, thus avoids affecting the observation of follow-up crackle；At mould
The one or both sides of type arrange three-dimensional digital image acquisition system, are continuously shot model underbead crack and constantly produce and crackle disappearance
3-D view；It is opaque state that described crackle constantly produces state；Described crackle vanishing state is for recovering transparence
State；
(3) use relevant speciality software that the image sequence gathered is processed can intuitively and quantitatively obtain after analyzing
The Three-dimensional Evolution process of model propagation of internal cracks；
Described country rock gushing water process D visualized simulation method step is as follows:
(1) use and see-through model has the transparency liquid of identical refractive index as water bursting sources, use uniform LED simultaneously
Light source irradiation model, it is desirable to this liquid is neither not significantly affected by again the physics of material with see-through model material generation chemical reaction
Mechanical property；
(2) transparent tunnel model is not soaked in transparency liquid before gushing water and is in drying regime, along with the excavation in tunnel encloses
Rock will appear from more and more opaque crackle；After excavation crackle turns on water bursting sources, water source will be along conducting crackle
Flow and make its crackle flowed through disappear；
(3) side at model water bursting sources arranges three-dimensional digital image acquisition system, is continuously shot model during gushing water
Underbead crack, by the 3-D view tailing off more, fading away, uses relevant speciality software process image sequence and analyze
After can intuitively and quantitatively obtain the Three-dimensional Evolution process of gushing water process.
A kind of tunnel surrounding cracks can spread the most according to claim 1 and the D visualized simulation of country rock gushing water process
Method, is characterized in that: described see-through model material is the transparent block that physico-mechanical properties is close with rock, and described is saturating
Bright block is the one in vitreous silica, silicon dioxide, silica gel or brittle resin, and corresponding transparency liquid requires and transparent mould
Shaped material has identical refractive index and not appreciably affects the character of material, and described see-through model material is transparent mineral oil, iodine
Change the one in sodium water solution or solution of calcium bromide in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144666.3A CN105842242B (en) | 2016-03-14 | 2016-03-14 | The D visualized simulation method of tunnel surrounding crack propagation and country rock gushing water process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144666.3A CN105842242B (en) | 2016-03-14 | 2016-03-14 | The D visualized simulation method of tunnel surrounding crack propagation and country rock gushing water process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105842242A true CN105842242A (en) | 2016-08-10 |
| CN105842242B CN105842242B (en) | 2018-09-14 |
Family
ID=56586951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610144666.3A Expired - Fee Related CN105842242B (en) | 2016-03-14 | 2016-03-14 | The D visualized simulation method of tunnel surrounding crack propagation and country rock gushing water process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105842242B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107832576A (en) * | 2017-10-18 | 2018-03-23 | 河海大学 | Applied to rock material I type crackle crack initiations and expansion process Microstructural Analysis |
| CN108344550A (en) * | 2018-04-25 | 2018-07-31 | 广西大学 | A kind of gradual cracking destruction observation device of tunneling vibrational platform test structure model |
| CN108398344A (en) * | 2018-02-26 | 2018-08-14 | 合肥工业大学 | It is a kind of can in-situ observation material internal fatigue crack growth frictional wear test device |
| WO2021042668A1 (en) * | 2019-09-06 | 2021-03-11 | 山东大学 | Tunnel surrounding rock structure virtual reproduction system carried on tbm, and method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091222B (en) * | 2013-01-04 | 2014-12-10 | 西南交通大学 | Device for simulating and testing water burst of tunnel fissure |
| CN103969099A (en) * | 2014-04-30 | 2014-08-06 | 河海大学 | Preparation method for artificially synthesized transparent soil material |
| WO2015165139A1 (en) * | 2014-04-30 | 2015-11-05 | 河海大学 | Transparent frozen soil and fabrication method and use therefor |
| CN103940981B (en) * | 2014-04-30 | 2015-09-09 | 湖南城市学院 | The solid rubble Soil-cement built pile model test apparatus of slurry and test method |
| CN104327472B (en) * | 2014-10-17 | 2015-10-07 | 河海大学 | A kind of making method of simulation rock propagation of internal cracks transparent material |
| CN104535728B (en) * | 2015-01-14 | 2017-01-11 | 中国矿业大学 | Two-dimensional physical simulation testing system for deeply-buried tunnel water bursting hazard and testing method thereof |
| CN104807960B (en) * | 2015-04-15 | 2017-01-25 | 中国矿业大学 | Visual testing device and method for simulating water gushing in tunnel |
| CN104963673B (en) * | 2015-07-13 | 2017-12-26 | 中国石油大学(北京) | Simulate the visual experimental apparatus that fiber diversion agent temporarily blocks up hydraulic fracture |
| CN105136533B (en) * | 2015-07-24 | 2017-09-29 | 宁波大学 | A kind of utilization sucrose solution prepares transparent native operating method |
-
2016
- 2016-03-14 CN CN201610144666.3A patent/CN105842242B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107832576A (en) * | 2017-10-18 | 2018-03-23 | 河海大学 | Applied to rock material I type crackle crack initiations and expansion process Microstructural Analysis |
| CN107832576B (en) * | 2017-10-18 | 2019-01-11 | 河海大学 | Applied to rock material I type crackle crack initiation and expansion process Microstructural Analysis |
| CN108398344A (en) * | 2018-02-26 | 2018-08-14 | 合肥工业大学 | It is a kind of can in-situ observation material internal fatigue crack growth frictional wear test device |
| CN108398344B (en) * | 2018-02-26 | 2020-07-31 | 合肥工业大学 | Friction wear test device capable of observing fatigue crack growth inside material in situ |
| CN108344550A (en) * | 2018-04-25 | 2018-07-31 | 广西大学 | A kind of gradual cracking destruction observation device of tunneling vibrational platform test structure model |
| CN108344550B (en) * | 2018-04-25 | 2024-02-02 | 广西大学 | Progressive cracking damage observation device for tunnel vibrating table test structure model |
| WO2021042668A1 (en) * | 2019-09-06 | 2021-03-11 | 山东大学 | Tunnel surrounding rock structure virtual reproduction system carried on tbm, and method thereof |
| US11263809B2 (en) | 2019-09-06 | 2022-03-01 | Shandong University | TBM-mounted virtual reconstruction system and method for surrounding rock structure of tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105842242B (en) | 2018-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105842242A (en) | Three-dimensional visualizable simulation method for crack propagation and water burst of tunnel surrounding rock | |
| CN103266888A (en) | System and method for visualization fracturing simulation experiment | |
| CN106370582A (en) | Fractured extra-low-permeability reservoir dynamic imbibition stimulation experiment device and application thereof | |
| CN109211666B (en) | The method of coal body permeability under predicted stresses loading environment based on CT scan | |
| CN106908314B (en) | Rock core thermal cracking experiment system and method in high-pressure environment | |
| CN104314538A (en) | Device and method for simulating large-sized acid-etched earthworm hole | |
| CN102928578A (en) | High-temperature and high-pressure volume expansion and shrinkage tester of oil well cement | |
| CN103760086B (en) | Permeability variation experimental provision after carbon dioxide injection and fluorine in coal qualitative response | |
| CN105064920A (en) | Multi-field coupling low-permeability soft coal seam hole punching pressure relief extraction simulation test method | |
| CN102817598B (en) | Thick oil dissolving gas-drive infilling exploitation physical simulation experimental facility and thick oil dissolving gas-drive encryption mining physical simulation experimental method | |
| CN113530536B (en) | Method and system for evaluating efficiency of tight sandstone gas reservoir horizontal well fracture reservoir | |
| CN105064984A (en) | Method for determining extinction time and depth of independent oil phases during ancient oil reservoir cracking process | |
| CN113049394B (en) | Experimental device and method for simulating hydraulic fracturing of hard roof rock stratum of coal mine | |
| CN108828190B (en) | Fracture simulation method for fractured compact sandstone oil and gas reservoir | |
| CN202110718U (en) | Three-dimensional visual physical module of oil reservoir layer | |
| CN107121354A (en) | A kind of device and its application method for testing Karst grouting material dispersion resistance matter under water | |
| CN105096718B (en) | A kind of test method and model of simulation reservoir seepage control of dam curtain | |
| CN111829887B (en) | Rock fracturing simulation experiment method based on high-pressure mercury injection | |
| CN108267174A (en) | A kind of verification devices and methods therefor of the profile-followed water route workpiece of 3D printing | |
| CN106640019A (en) | Fracturing operation simulating real-time monitoring system and method | |
| CN203798679U (en) | Measuring device for simulating coal seam hydro-fracture to induce surrounding rock stress changes | |
| CN106354933B (en) | A kind of ultra-large type waste heat boiler pipeline pressure test method based on BIM technology | |
| CN108804761B (en) | Multi-medium groundwater migration simulation method and system | |
| US20220324165A1 (en) | Systems and methods for treating a printed model | |
| You et al. | Physical simulation experiments on pore evolution in high-temperature and overpressure reservoirs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20190314 |