CN108627114A - Inside soil body visualization of 3 d deformation measurement method - Google Patents
Inside soil body visualization of 3 d deformation measurement method Download PDFInfo
- Publication number
- CN108627114A CN108627114A CN201810361258.2A CN201810361258A CN108627114A CN 108627114 A CN108627114 A CN 108627114A CN 201810361258 A CN201810361258 A CN 201810361258A CN 108627114 A CN108627114 A CN 108627114A
- Authority
- CN
- China
- Prior art keywords
- camera
- deformation
- soil body
- transparent
- observation
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
Abstract
The present invention relates to a kind of inside soil body visualization of 3 d deformation measurement methods, including step：1) aluminium sheet is used to make experimental tank；2) the transparent soil of experiment is configured in experimental tank；3) observation object is inserted into transparent soil；4) camera is set in observation window corresponding position, optical module and laser is set in light inlet window corresponding position；5) important parameters such as the height of camera, the corner of shooting and camera geometric coordinate are adjusted and recorded according to the position of observation point；6) laser is opened；7) analyze the image that is shot from every camera respectively using GeoPIV with obtain from every camera looks into fee to two-dimension displacement, then merge corresponding two-dimension displacement using stereophotogrammetric method to generate the 3 D deformation of sample.The beneficial effects of the invention are as follows：The present invention replaces the common soil body using transparent soil, and the deformation of the soil body of direct observation model experiment under the premise of not disturbed soil may be implemented, the deformation of the cameras record soil body is used in combination.
Description
Technical field
The present invention relates to a kind of soil body internal deformation measurement method, more particularly to a kind of inside soil body visualization of 3 d deformation
Measurement method.
Background technology
Transparent soil is a kind of and natural rock-filled is there are the transparent soil of similar quality, artificial synthesized in the 1990s
Out.Before transparent soil is not by artificial synthesized come out, in soil body simulated experiment, deformation and the side of soil body macroscopic view can only be obtained
The deformation in battery limit (BL) domain.And after transparent soil occurs, in soil body simulated experiment, non-intruding continuous observation inside soil body may be implemented
The deformation of arbitrary point, and it is possible to prevente effectively from the interference of traditional observation procedure to experimental result.Conventional transparent soil non-intruding can
Depending on changing in experiment, it is soil structure deformation observation to be carried out in such a way that half space is symmetrical by observation window, and use digital phase
Machine and digital image processing techniques measure soil deformation.However, the transparent native visual depth that uses of traditional experiment is in 5~10cm,
The soil deformation of deeper inside can not be observed, the size of experimental model is limited.Secondly, traditional experiment is directed to single rule
Observation object have preferable effect, when observation object is that group is irregular, observation effect is not very good.In addition number is used
Code camera shoots picture, and is handled picture in conjunction with digital image processing techniques, can only finally obtain the two dimension of observation point
Deformation, is unable to get the 3 D deformation of point of observation.
Therefore, there is an urgent need for seek a kind of position that soil body depths can be observed under the irregular observation object of group at present
It moves, deformation and the measurement method using relevant art acquisition soil body 3 D deformation field seem particularly important.
Invention content
The purpose of the present invention is overcoming deficiency in the prior art, a kind of inside soil body visualization of 3 d deformation measurement is provided
Method.
This inside soil body visualization of 3 d deformation measurement method, includes the following steps：
1) aluminium sheet is used to make experimental tank；Vertical light inlet window is opened up in the rear side of experimental tank and right side, in light inlet window
The heart is corresponding with experimental tank side edge mid-points；Vertical observation window is opened up in the front side of experimental tank and left side；It is transparent to open up position installation
Glass；Observation object is made using acrylic material；
2) the transparent soil of experiment is configured in experimental tank；It is to be configured it is good after, transparent soil is placed in a vacuum, removal is saturating
Air in bright soil；Then the shear stress of 20~35kPa or more is used to consolidate transparent soil；Finally transparent
The fluorescent grain of 2%~3% volume is sprinkled into native process for preparation；
3) observation object is inserted into transparent soil；
4) camera is set in observation window corresponding position, optical module and laser is set in light inlet window corresponding position；
5) weight such as the height of camera, the corner of shooting and camera geometric coordinate is adjusted and recorded according to the position of observation point
Want parameter；
6) laser is opened, stabilized lasers beam is generated, laser beam is transmitted to optical module along optical fiber, passes through optical module
Afterwards, it forms lasing area to be irradiated in transparent soil, and forms the speckle face covered comprehensively；The observation pair of camera track up is utilized simultaneously
As the displacement with surrounding soil, deformation；
7) analyze the image that is shot from every camera respectively using GeoPIV with obtain from every camera looks into fee to two
Displacement is tieed up, then merges corresponding two-dimension displacement using stereophotogrammetric method to generate the 3 D deformation of sample.
As preferred：In the step 1), observation object can be that single rule is symmetrical, can also be that group is irregular
It is asymmetric.
As preferred：In the step 2), transparent soil is made using crystal silicon aggregate and pore-fluid, pore-fluid is by white
Oil and paraffin solvent mixing, volume ratio are 2.5~3.5.
As preferred：In the step 4), two cameras are respectively set in observation window corresponding position.
The beneficial effects of the invention are as follows：
(1) present invention is on front side of experimental tank and two cameras are respectively placed in left side, is analyzed respectively by GeoPIV and comes from two
The image of camera with obtain from each camera looks into fee to two-dimension displacement, then merge corresponding two using stereophotogrammetric method
Displacement is tieed up to generate the 3 D deformation of sample, the defect of 3 D deformation can not be obtained by overcoming traditional measurement method.
(2) present invention replaces the common soil body using transparent soil, may be implemented directly to observe under the premise of not disturbed soil
The deformation of the cameras record soil body is used in combination in the deformation of the soil body of model experiment.
(3) the transparent native visual depth that the present invention configures is 15~20cm, overcomes traditional measurement method because transparent soil can
Defect too low depending on depth and that mini Mod experiment can only be observed.
(4) present invention is on front side of experimental tank and two cameras are respectively placed in left side, can observe the irregular observation pair of group
As the displacement and deformation in transparent soil, the defect of observation object of single rule can only be observed by overcoming conventional method.
Description of the drawings
Fig. 1 is the operational flowchart of inside soil body visualization of 3 d deformation measurement method.
Fig. 2 is the setting plane used in inside soil body visualization of 3 d deformation measurement.
Fig. 3 is the 1-1 sectional views in Fig. 2.
Reference sign：1-camera；2-experimental tanks；3-optical modules；4-optical fiber；5-lasers；6-cameras
Fixed frame；7-transparent soil；8-light inlet windows；9-observation windows；10-observation objects.
Specific implementation mode
The present invention is described further with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
The inside soil body visualization of 3 d deformation measurement method, includes the following steps：
(1) aluminium sheet is used to make the experimental tank 2 of a long 280mm, wide 200mm, high 260mm, thickness 20mm.In experimental tank 2
Rear side and right side respectively open up the vertical light inlet window 8 of a wide 30mm, the center of light inlet window 8 is corresponding with 2 side edge mid-points of experimental tank.
The right-angle view window 9 of a wide 160mm is respectively opened up in the front side of experimental tank 2 and left side.Open up position installation transparent glass.It utilizes
Acrylic material makes irregular observation object 10, and section is inverted L-shaped, and section longest edge is 80mm, width 30m, such as Fig. 2 institutes
Show, a height of 200mm, as shown in Figure 3.
(2) transparent native the 7 of experiment is configured in experimental tank 2.Use the transparency with cleanliness preferably, refractive index 1.467
Crystal silicon aggregate and pore-fluid manufactured size it is larger transparent native 7, pore-fluid is mixed by white oil and paraffin solvent, and
Their volume ratio is 77:23, match with the refractive index of crystal silicon, needs to ensure its sample during preparing transparent native 7
The uniformity of product.It is to be configured it is good after, transparent native 7 are placed in a vacuum, the air in removal transparent native 7.Then 30kPa is used
Above shear stress is consolidated to transparent native 7.Finally in order to enhance speckle field density, prepared transparent native 7
The fluorescent grain of 2% volume is sprinkled into journey.
(3) observation object of irregular shape 10 is inserted into transparent native 7.
(4) one group of (two) camera 1 is set in 9 corresponding position of observation window, optics is set in 8 corresponding position of light inlet window
Component 3 and laser 5.
(5) 1 geometric coordinate of the height of camera 1, the corner of shooting and camera is adjusted and recorded according to the position of observation point
Equal important parameters.
(6) laser 5 is opened, stabilized lasers beam is generated, laser beam will be transmitted to optical module 3 along optical fiber 4, when logical
It after crossing several groups of optical modules 3, forms larger lasing area and is irradiated in transparent native 7, and form the speckle face covered comprehensively, simultaneously
Displacement, deformation using 1 track up observation object 10 of camera with surrounding soil.
(7) it analyzes the image that is shot from every group of camera 1 respectively using GeoPIV and is observed from each camera 1 with obtaining
Then two-dimension displacement merges corresponding two-dimension displacement to generate the 3 D deformation of sample using stereophotogrammetric method.
Observation object 10 can be that single rule is symmetrical, can also be that group is irregularly asymmetric.
The validity of experiment：When measuring the deformation of inside soil body, conventional method is used to be arranged in inside soil body and be passed
The mode of sensor understands the deformation of inside soil body, but inevitably causes the soil body during sensor is arranged
Disturbance, causes the property of the soil body to change, can not simulate the deformation of the practical soil body.And the present invention is replaced using transparent soil
The common soil body (transparent soil is artificial synthesized with the transparent soil body similar with natural rock-filled), may be implemented in not disturbed soil
Under the premise of directly observation model experiment the soil body deformation, the deformation of the cameras record soil body is used in combination.In addition this hair
The bright deformation arrived using GeoPIV analysis camera looks into fee, obtains the two-dimension displacement of inside soil body, then in conjunction with stereo
Mensuration merges corresponding two-dimension displacement, finally obtains the 3 D deformation of inside soil body.Therefore the present invention measures inside soil body
The method of 3 D deformation is effective.
Claims (4)
1. a kind of inside soil body visualization of 3 d deformation measurement method, which is characterized in that include the following steps：
1) aluminium sheet is used to make experimental tank (2)；Vertical light inlet window (8), light inlet window are opened up in the rear side of experimental tank (2) and right side
(8) center is corresponding with experimental tank (2) side edge mid-points；Vertical observation window (9) is opened up in the front side of experimental tank (2) and left side；
Open up position installation transparent glass；Observation object (10) is made using acrylic material；
2) it is configured in experimental tank (2) transparent native (7) of experiment；It is to be configured it is good after, transparent native (7) are placed in a vacuum,
Remove the air in transparent native (7)；Then the shear stress of 20~35kPa or more is used to consolidate transparent native (7)
Knot；The fluorescent grain of 2%~3% volume is finally sprinkled into transparent native (7) process for preparation；
3) observation object (10) is inserted into transparent native (7)；
4) observation window (9) corresponding position setting camera (1), light inlet window (8) corresponding position setting optical module (3) with
Laser (5)；
5) height of camera (1), the corner of shooting and camera (1) geometric coordinate etc. are adjusted and recorded according to the position of observation point
Important parameter；
6) laser (5) is opened, stabilized lasers beam is generated, laser beam is transmitted to optical module (3) along optical fiber (4), passes through light
After learning component (3), forms lasing area and be irradiated in transparent native (7), and form the speckle face covered comprehensively；Camera is utilized simultaneously
(1) displacement of track up observation object (10) and surrounding soil, deformation；
7) image from the shooting of every camera (1) is analyzed respectively using GeoPIV to observe from every camera (1) to obtain
Then two-dimension displacement merges corresponding two-dimension displacement to generate the 3 D deformation of sample using stereophotogrammetric method.
2. inside soil body visualization of 3 d deformation measurement method according to claim 1, it is characterised in that：The step 1)
In, observation object (10) can be that single rule is symmetrical, can also be that group is irregularly asymmetric.
3. inside soil body visualization of 3 d deformation measurement method according to claim 1, it is characterised in that：The step 2)
In, transparent native (7) are made using crystal silicon aggregate and pore-fluid, pore-fluid is mixed by white oil and paraffin solvent, volume
Ratio is 2.5~3.5.
4. inside soil body visualization of 3 d deformation measurement method according to claim 1, it is characterised in that：The step 4)
In, in observation window (9) corresponding position, two cameras (1) are respectively set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361258.2A CN108627114A (en) | 2018-04-20 | 2018-04-20 | Inside soil body visualization of 3 d deformation measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361258.2A CN108627114A (en) | 2018-04-20 | 2018-04-20 | Inside soil body visualization of 3 d deformation measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627114A true CN108627114A (en) | 2018-10-09 |
Family
ID=63694176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810361258.2A Pending CN108627114A (en) | 2018-04-20 | 2018-04-20 | Inside soil body visualization of 3 d deformation measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108627114A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541174A (en) * | 2018-11-06 | 2019-03-29 | 重庆大学 | A kind of transparent soil deformation visualization system on simulated sea bottom landslide |
| CN110082502A (en) * | 2019-05-06 | 2019-08-02 | 中国海洋大学 | The three-dimensional visualization experimental rig and method of decomposition of hydrate induction seabed deformation |
| CN110441212A (en) * | 2019-08-23 | 2019-11-12 | 河海大学 | A kind of dykes and dams seepage deformation simulation monitoring device and simulation monitoring method |
| CN110455669A (en) * | 2019-08-30 | 2019-11-15 | 三峡大学 | A kind of experimental provision by accurately quickly measuring salt solustion mehtod soil―structure interaction with photogrammetric technology |
| CN111649925A (en) * | 2020-06-01 | 2020-09-11 | 河海大学 | Pipeline deformation distributed monitoring device and monitoring method based on transparent soil |
| WO2021087789A1 (en) * | 2019-11-06 | 2021-05-14 | 大连理工大学 | Submarine landslide evolution process simulation system and experiment method based on transparent soil and rotating tank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202614786U (en) * | 2012-04-23 | 2012-12-19 | 浙江理工大学 | PIV experiment calibration device |
| CN103591939A (en) * | 2013-10-29 | 2014-02-19 | 中国科学院力学研究所 | Method for measuring simulated seabed terrain based on active stereo vision technology and measuring equipment |
| CN103759670A (en) * | 2014-01-06 | 2014-04-30 | 四川虹微技术有限公司 | Object three-dimensional information acquisition method based on digital close range photography |
| CN103968774A (en) * | 2014-04-30 | 2014-08-06 | 河海大学 | Model test device for measuring internal displacement of soil body in soil sampling process and use method thereof |
| CN104764745A (en) * | 2015-04-21 | 2015-07-08 | 中国矿业大学 | Physical testing method capable of directly observing internal deformation of rock mass model |
| CN104964978A (en) * | 2015-07-08 | 2015-10-07 | 大连理工大学 | Simulation method for base structure in soil body and movement visualization of soil body under earthquake action |
| CN205384153U (en) * | 2016-03-07 | 2016-07-13 | 武汉市市政建设集团有限公司 | Tunnel excavation face unstability model test device based on transparent soil |
| CN107621524A (en) * | 2017-10-09 | 2018-01-23 | 重庆大学 | The transparent soil model experimental rig and test method of a kind of simulation tunnel excavation deformation |
-
2018
- 2018-04-20 CN CN201810361258.2A patent/CN108627114A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202614786U (en) * | 2012-04-23 | 2012-12-19 | 浙江理工大学 | PIV experiment calibration device |
| CN103591939A (en) * | 2013-10-29 | 2014-02-19 | 中国科学院力学研究所 | Method for measuring simulated seabed terrain based on active stereo vision technology and measuring equipment |
| CN103759670A (en) * | 2014-01-06 | 2014-04-30 | 四川虹微技术有限公司 | Object three-dimensional information acquisition method based on digital close range photography |
| CN103968774A (en) * | 2014-04-30 | 2014-08-06 | 河海大学 | Model test device for measuring internal displacement of soil body in soil sampling process and use method thereof |
| CN104764745A (en) * | 2015-04-21 | 2015-07-08 | 中国矿业大学 | Physical testing method capable of directly observing internal deformation of rock mass model |
| CN104964978A (en) * | 2015-07-08 | 2015-10-07 | 大连理工大学 | Simulation method for base structure in soil body and movement visualization of soil body under earthquake action |
| CN205384153U (en) * | 2016-03-07 | 2016-07-13 | 武汉市市政建设集团有限公司 | Tunnel excavation face unstability model test device based on transparent soil |
| CN107621524A (en) * | 2017-10-09 | 2018-01-23 | 重庆大学 | The transparent soil model experimental rig and test method of a kind of simulation tunnel excavation deformation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541174A (en) * | 2018-11-06 | 2019-03-29 | 重庆大学 | A kind of transparent soil deformation visualization system on simulated sea bottom landslide |
| CN110082502A (en) * | 2019-05-06 | 2019-08-02 | 中国海洋大学 | The three-dimensional visualization experimental rig and method of decomposition of hydrate induction seabed deformation |
| CN110441212A (en) * | 2019-08-23 | 2019-11-12 | 河海大学 | A kind of dykes and dams seepage deformation simulation monitoring device and simulation monitoring method |
| CN110455669A (en) * | 2019-08-30 | 2019-11-15 | 三峡大学 | A kind of experimental provision by accurately quickly measuring salt solustion mehtod soil―structure interaction with photogrammetric technology |
| WO2021087789A1 (en) * | 2019-11-06 | 2021-05-14 | 大连理工大学 | Submarine landslide evolution process simulation system and experiment method based on transparent soil and rotating tank |
| CN111649925A (en) * | 2020-06-01 | 2020-09-11 | 河海大学 | Pipeline deformation distributed monitoring device and monitoring method based on transparent soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108627114A (en) | Inside soil body visualization of 3 d deformation measurement method | |
| CN109493329A (en) | Digital Image Correlation Method based on local mesh reflnement | |
| Allamano et al. | Toward the camera rain gauge | |
| CN108318665A (en) | The transparent soil model experimental provision of a clump of piles and its experimental method under centrifugal condition | |
| CN109887020B (en) | Plant organ separation method and system | |
| CN104050637B (en) | Quick image defogging method based on two times of guide filtration | |
| CN107430052A (en) | Particles for imaging analytical equipment | |
| CN109708578A (en) | A kind of plant phenotype parameter measuring apparatus, method and system | |
| DE602008005933D1 (en) | METHOD AND SYSTEM FOR IMPROVED OPTICAL MODELING OF GEMSTONES | |
| CN105004611A (en) | Method for studying material mechanics behaviors of concrete crack process zone | |
| CN104835124B (en) | A kind of froth images color calibration method and device based on Spectrum Data Fusion | |
| CN110501271A (en) | A kind of method and apparatus of detection carbonate porosity type and effective porosity | |
| US20160259156A1 (en) | Adaptive optics for imaging through highly scattering media in oil reservoir applications | |
| Lachat et al. | First experiences with the Trimble SX10 Scanning Total Station for building facade survey | |
| CN104603668A (en) | Image processing apparatus, image processing program, and image processing method | |
| CN110261642B (en) | Three-dimensional particle image velocity measurement method suitable for gas-liquid interface | |
| CN105022995B (en) | Method for extracting and analyzing diffusion and permeation information of painting and calligraphy elements based on light intensity information | |
| Niederöst et al. | Shape from focus: fully automated 3D reconstruction and visualization of microscopic objects | |
| CN103954223B (en) | Outlet silk width measuring method based on double-camera millimeter level biology 3D printer | |
| Grbić et al. | Garden cultural heritage spatial functionalities: The case of anamorphosis abscondita at Vaux-le-Vicomte | |
| Bowen et al. | Cyclododecane as a contrast improving substance for the terahertz imaging of artworks | |
| Campi et al. | Photogrammetric processes and augmented reality applications using mobile devices | |
| CN113899657B (en) | Compressible Reynolds stress measurement method based on composite schlieren technology | |
| CN105563446B (en) | Hardware plank setting-out cutting assists device | |
| KR102067034B1 (en) | Apparatus for extracting vegetation section for 3d navigation and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |