CN104036538B - Soil-rock mixture three-dimensional microscopical structure is rebuild and analysis method and system - Google Patents
Soil-rock mixture three-dimensional microscopical structure is rebuild and analysis method and system Download PDFInfo
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Abstract
The present invention proposes that a kind of soil-rock mixture three-dimensional microscopical structure is rebuild to be included with analysis method and system, the method：Prepare soil-rock mixture sample；CT scan is carried out to soil-rock mixture sample to obtain the CT tomographic sequences of soil-rock mixture sample；Block stone cross sectional area in acquisition CT tomographic sequences in each CT faultage image, and block stone cross sectional area is split to obtain multiple independent block stone sections；Multiple independent block stone section in each CT faultage image carries out registration, and the three-dimensional microscopical structure model of block stone is generated according to registration result；Three-dimensional microscopical structure model to block stone is analyzed to determine rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and the block stone morphological character of soil-rock mixture sample.Embodiments in accordance with the present invention can be conveniently generated three-dimensional microscopical structure model, and with soil-rock mixture analysis result is accurate, reliable advantage, while also can be directly used for numerical Analysis.
Description
Technical field
Rebuild the present invention relates to rock soil medium analysis technical field, more particularly to a kind of soil-rock mixture three-dimensional microscopical structure
With analysis method and system.
Background technology
Soil-rock mixture is the complicated rock soil medium of the class being widely present in nature, is also Geological Engineering, ground work
The class geologic body frequently encountered in journey.Due to the presence of soil-rock mixture inside oversize block stone so that its physico-mechanical properties
It is difficult to be obtained by traditional interior or field test.The research of soil-rock mixture physico-mechanical properties is all the time rock
The problem that native engineering interface faces.
With the development of numerical computation technology, numerical experimentation is the research of soil-rock mixture physico-mechanical properties and discloses this
The deformation fracture mechanism of class Rock And Soil provides new technical support.When the numerical experimentation research of soil-rock mixture is carried out, build
The vertical calculating analysis model consistent with physical mechanics test, is to ensure that the important foundation of numerical computations reliability.However, existing at present
The three-dimensional microscopical structure model generation aspect of soil-rock mixture, substantially uses and for block stone to be reduced to the letters such as spheroid, convex polyhedron
Single geometrical body, then by the way of computer random generation, produces corresponding microscopical structure model.This method is difficult to
Ensure the uniformity of set up model and physical test model so that Calculation results be difficult to it is fine with physical test
Contrast, reference value is high.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, first purpose of the invention is to propose that a kind of soil-rock mixture three-dimensional microscopical structure is rebuild and analysis side
Method.The method can be conveniently generated the three-dimensional microscopical structure model of soil-rock mixture, and can be directly used for the thin of soil-rock mixture
Structural analysis is seen, with the accurate reliable advantage of analysis result.
Second object of the present invention is to propose that a kind of soil-rock mixture three-dimensional microscopical structure is rebuild and analysis system.
To achieve these goals, the embodiment of the first aspect of the present invention discloses a kind of three-dimensional thin sight of soil-rock mixture
Structural remodeling and analysis method, comprise the following steps：Prepare soil-rock mixture sample；CT is carried out to the soil-rock mixture sample
Scan to obtain the CT tomographic sequences of the soil-rock mixture sample；Obtain each CT in the CT tomographic sequences
Block stone cross sectional area in faultage image, and described piece of stone cross sectional area is split disconnected to obtain multiple independent block stones
Face；Multiple independent block stone section in each CT faultage image carries out registration, and generates block according to registration result
The three-dimensional microscopical structure model of stone；And the three-dimensional microscopical structure model of described block of stone is analyzed to determine that the native stone is mixed
The rock-soil ratio of fit sample, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
In addition, soil-rock mixture according to the above embodiment of the present invention three-dimensional microscopical structure rebuild can be with analysis method
With following additional technical characteristic：
In some instances, the soil-rock mixture sample is prepared by lucite sample preparation cylinder, by CT Scanner pair
The soil-rock mixture sample is scanned.
In some instances, the Kuai Shi sections area in the acquisition CT tomographic sequences in each CT faultage image
Domain, and described piece of stone cross sectional area is split to obtain multiple independent block stone sections, further include：It is disconnected to the CT
Each CT faultage image is filtered denoising in upper layer images sequence；Each CT faultage image after to filtering and noise reduction carries out two
Value processes to determine described piece of stone cross sectional area and soil body region；By corrosion and the morphological image computing for expanding to described
Split to obtain multiple independent block stone sections in block stone cross sectional area.
In some instances, it is described to each CT faultage image in multiple independent block stone section carry out registration, and
The three-dimensional microscopical structure model of block stone is generated according to registration result, is further included：Successively on each CT faultage image
The border of all pieces of stone sections be identified with numbering, and calculate the geometric properties index of each block stone section；It is disconnected to all CT
The border of the block stone section on tomographic image carries out registration to obtain the registration result；According to the described piece of geometric properties of stone section
Index and the registration result generate the described piece of three-dimensional microscopical structure model of stone.
In some instances, the three-dimensional microscopical structure model to block stone is analyzed to determine soil-rock mixture sample
Rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character, further include：To block stone
Three-dimensional microscopical structure model is rendered and shown, is rendered with basis and is shown that result determines containing for the soil-rock mixture sample
Shi Liang, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
The embodiment of the second aspect of the present invention discloses a kind of soil-rock mixture three-dimensional microscopical structure and rebuilds
System, including：Soil-rock mixture sample preparation device, for preparing soil-rock mixture sample；CT faultage image scanning means, is used for
CT scan is carried out to the soil-rock mixture sample to obtain the CT tomographic sequences of the soil-rock mixture sample；Three-dimensional mould
Type rebuilds module, for obtaining the block stone cross sectional area in the CT tomographic sequences in each CT faultage image and right
Described piece of stone cross sectional area is split to obtain multiple independent block stone sections, and in each CT faultage image
Multiple independent block stone section carry out registration, and the three-dimensional microscopical structure model of block stone is generated according to registration result；And three
Dimension microscopical structure Information Statistics analysis module, is analyzed described to determine for the three-dimensional microscopical structure model to described block of stone
The rock-soil ratio of soil-rock mixture sample, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
In addition, soil-rock mixture according to the above embodiment of the present invention three-dimensional microscopical structure rebuild can be with analysis system
With following additional technical characteristic：
In some instances, the soil-rock mixture sample preparation device is lucite sample preparation cylinder, the CT tomographs
As scanning means is CT Scanner.
In some instances, the reconstructing three-dimensional model module is used for：To each CT in the CT tomographic sequences
Faultage image is filtered denoising；Each CT faultage image after to filtering and noise reduction carries out binary conversion treatment to determine described piece
Stone cross sectional area and soil body region；Described piece of stone cross sectional area is split by the morphological image computing corroded and expand
To obtain multiple independent block stone sections.
In some instances, the reconstructing three-dimensional model module is additionally operable to：Successively to the institute on each CT faultage image
The border for having block stone section be identified with numbering, and calculate the geometric properties index of each block stone section；To all CT tomographies
The border of the block stone section on image carries out registration to obtain the registration result；Geometric properties according to described piece of stone section refer to
Mark and the registration result generate the described piece of three-dimensional microscopical structure model of stone.
In some instances, also include：Three-dimensional Display computer installation, enters for the three-dimensional microscopical structure model to block stone
Row is rendered and shown.
Embodiments in accordance with the present invention, can easily set up its corresponding three-dimensional structure mould according to soil-rock mixture sample
Type, and the characteristic such as granularmetric composition, form to sample internal block stone carries out quantitative analysis, while the three-dimensional visualization of implementation model
Displaying and storage, for the physical mechanics numerical experimentation of soil-rock mixture provides support.
Compared to existing mode, embodiments of the invention can be when modeling to soil-rock mixture three-dimensional microscopical structure, profit
With soil-rock mixture CT tomography sequence images, the three-dimensional microscopical structure mould of soil-rock mixture is realized in the case where sample is not destroyed
Type is rebuild, and the sample after scanning can proceed with indoor physical mechanics test research.According to the soil-rock mixture sample after reconstruction
Model, can carry out statistical analysis to information such as its internal block stone geometric shape feature, granularmetric composition, spatial distributions, and can be to mould
The inquiry operations such as type is rendered, cutting.Meanwhile, the model after reconstruction can directly be stored as universal data format, for number
Value experimental study.Embodiments of the invention, substantially increase the degree that becomes more meticulous of institute's generation model, in numerical experimentation and physical force
Learn and establish bridge tie between testing, so that the physico-mechanical properties numerical experimentation research carried out on this basis is more
Rationally with reliability.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Fig. 1 is the structural map of the lucite sample preparation cylinder in one embodiment of the invention；
Fig. 2 is the schematic diagram of the CT Scanner in one embodiment of the invention；
Fig. 3 is the block stone of soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention reconstruction and analysis method
The flow chart of segmentation；
Fig. 4 is the generation of soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention reconstruction and analysis method
The flow chart of the three-dimensional microscopical structure model of block stone；
Fig. 5 is the structure chart of the Complicate soil medium microscopical structure three-dimensional reconstruction system in one embodiment of the invention；
Fig. 6 is the flow of soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention reconstruction and analysis method
Figure；And
Fig. 7 is the structure of soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention reconstruction and analysis system
Figure.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting to specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the limitation present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is again the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity.This
Outward, the invention provides various specific techniques and the example of material, but those of ordinary skill in the art can be appreciated that it
The use of the applicable property and/or other materials of his technique.In addition, fisrt feature described below second feature it " on "
Structure can include that the first and second features be formed as the embodiment of directly contact, it is also possible to be formed in including other feature
Embodiment between first and second features, such first and second feature may not be directly contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection, or two connections of element internal, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Rebuild and analysis side below in conjunction with Description of Drawings soil-rock mixture three-dimensional microscopical structure according to embodiments of the present invention
Method and system.
The method is applied to the modeling of three-dimensional microscopical structure and analysis of soil-rock mixture, including：
Soil-rock mixture sample CT 3-D scanning steps, are scanned using CT Scanner to soil-rock mixture sample, are obtained
Fetch earth the CT tomographies sequence image (i.e. CT tomographic sequences) of rock mixture sample；CT faultage image pre-treatment steps, use
Digital image processing techniques are processed the soil-rock mixture CT section tomographic images for obtaining, using Threshold sementation by block stone
The soil body with surrounding is distinguished, and the boundary point information of each block stone section in CT faultage images is obtained using edge detecting technology,
And piecemeal mark is carried out to it；Soil-rock mixture internal block stone step of registration, in the adjacent C T faultage images section that will be obtained
Each block stone section boundary information of piecemeal mark, match cognization is carried out according to its morphological character and locus, is constituted
Block stone section border in all CT sections of each block stone；Block stone reconstructing three-dimensional model step, breaks according to the block stone after matching
Face information, builds the triangle gridding for characterizing each block stone surface, sets up all pieces of three-dimensional moulds of stone in soil-rock mixture sample inside
Type；Block stone geometric shape statistical analysis step, according to the soil-rock mixture internal block stone model after reconstruction, to the geometric form of block stone
The information such as state feature, granularmetric composition, spatial distribution carry out statistical analysis；Soil-rock mixture three-dimensional microscopical structure visualization and output
Step, carries out coloring and renders, it is allowed to Yong Hujin according to the particle size of block stone by the three-dimensional microscopical structure model rebuild to block stone
The inquiry operations such as row rotation, section, while allowing user that model is output as into general data form for numerical computations.
Specifically, Fig. 6 is that soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention is rebuild and analysis
The flow chart of method.
As shown in fig. 6, soil-rock mixture three-dimensional microscopical structure according to an embodiment of the invention is rebuild and analysis method,
Comprise the following steps：
Step S601：Prepare soil-rock mixture sample.Soil-rock mixture for example can be prepared by lucite sample preparation cylinder to try
Sample.
Step S602：CT scan is carried out to soil-rock mixture sample to obtain the CT faultage image sequences of soil-rock mixture sample
Row.Soil-rock mixture sample is scanned through but not limited to CT Scanner for example.
Step S603：Block stone cross sectional area in acquisition CT tomographic sequences in each CT faultage image, and to block
Split to obtain multiple independent block stone sections in stone cross sectional area.
Specifically, denoising is filtered to each CT faultage image in CT tomographic sequences first, then to filter
Each CT faultage image after ripple denoising carries out binary conversion treatment to determine described piece of stone cross sectional area and soil body region, finally
Described piece of stone cross sectional area can be split by the morphological image computing corroded and expand to obtain multiple independent blocks
Stone section.
Step S604：Multiple independent block stone section in each CT faultage image carries out registration, and according to registration
Result generates the three-dimensional microscopical structure model of block stone.
As a specific example, for example：Successively to all pieces of borders of stone section on each CT faultage image
Be identified with numbering, and calculate the geometric properties index of each block stone section, and the block stone on all CT faultage images is broken
The border in face carries out registration to obtain the registration result, finally can be according to the geometric properties index of block stone section and registration result
Generate the three-dimensional microscopical structure model of block stone.
Step S605：The three-dimensional microscopical structure model of block stone is analyzed with determine soil-rock mixture sample containing stone
Amount, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
Specifically, the three-dimensional microscopical structure model of block stone can be rendered and is shown first, so, can be according to rendering
With rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and the block stone that displaying result determines soil-rock mixture sample
Morphological character etc..
1-5 is described in more detail to the method for the embodiment of the present invention below in conjunction with the accompanying drawings.
As shown in figure 1, lucite sample preparation cylinder 40 (hereinafter referred to as sample preparation cylinder) mainly include sample cap 1, split side neck 2,
Chassis 3.The short transverse of split side neck 2 is provided with annular stiffening rib 4, when the nut bore 5 on the both wings of split side neck 2 is used for sample preparation
Start the dismounting of the preceding split side neck 2 of experiment after the fixation and completion scanning of split side neck 2.Valve 6 on sample cap 1 is by examination
Passage in sample cap 1 is connected with sample, for controlling sample preparation during vacuum pumping.Groove 7 is used to place and solid
Loading device in fixed experiment.On sample cap 1 and chassis 3 be provided with rubber band groove 8, for sample preparation during rubber membrane
Tie up and fixation.The bottom of split side neck 2 with the nut bore 9 on chassis 3 is used to that both to be fixed together and carried jointly sample
Weight.
In this embodiment, install after fixing chassis 3, rubber membrane, split side neck 2, soil-rock mixture layering is loaded into system
In sample cylinder 40, and layering hits real to required packing, and sample cap 1 is installed after sample (i.e. soil-rock mixture sample) is filled, and takes out
The CT scan for carrying out sample together with lucite sample preparation cylinder 40 after vacuum, split side neck 2 of being dismantled after the completion of scanning is by sample
It is installed to and carries out experiment on test apparatus.
As shown in Fig. 2 CT Scanner mainly includes scanning support 10, scanning bed 11, computer system 12, CT machine control operations
Disk 13.Wherein computer system 12 and CT machine control operations disk 13 be perform scan operation and data processing storage control in
The heart, scanning support 10 is equipped with x-ray bulb, filter line device, collimater, detector etc., transmitting and reception for X-ray, scanning bed 11
It is the instrument for delivering scanned sample, vertically and horizontally lengthwise movement can be required according to control.
In this embodiment, soil-rock mixture sample 14 is lain against on scanning bed 11 together with lucite sample preparation cylinder 40,
Horizontal lengthwise movement direction of the sample 14 axially with scanning bed 11 is consistent, the height of adjustment scanning bed 11, adjusts soil-rock mixture
After the cross center line center superposition that sample cross center is launched with scanning support 10, scanning bed 11 are pushed away to the level of scanning support 10
Send, the front end face of sample 14 is located exactly at scanning support bulb institute planar, position is zeroed with mark scan starting point.
This time is set up by computer system 12 and scans record, set sweep object type, the emitted energy of bulb x-ray,
The parameters such as CT tomography spacing and selected sweep limits, start CT machines by CT machine control operations disk 13 afterwards, complete scanning, obtain
CT Slice Sequences image (i.e. CT tomographic sequences) can preserve into External memory equipment.
As shown in figure 3, the process of block stone segmentation is as follows：
Step S10, imports the data of the soil-rock mixture sample CT Slice Sequence images that above-mentioned CT scan is obtained, and by its
In storing database.
Step S11, the filtering and noise reduction treatment of mass, adjustment filter are carried out to the two-dimensional ct Slice Sequence image that scanning is obtained
Ripple device template is gone the part noise in two-dimensional slice image by methods such as mean filter or medium filterings to suitable dimension
Remove, make image smoothing.
Step S12, analyze after preliminary filtering process two-dimensional slice image grey level histogram, it is determined that distinguish " soil body " with
The gray threshold of " block stone ", (block stone is to grind to carry out batch binary conversion treatment as desired to two-dimensional ct Slice Sequence image accordingly
Study carefully object, the soil body and hole are background), certainly, embodiments of the invention are not limited to this, for example, can also carry out three-valued processing
(i.e.：Block stone and two kinds of research objects of hole, the soil body is used as background).
Step S13, is cut by being applied in combination for simple image morphology operations such as burn into expansions to the two-dimensional ct of binaryzation
Piece sequence image carries out batch splitting, and the two or more autonomous block stone sections for contacting with each other are separated, and is that subsequent block stone breaks
The mark on face border, registering and three-dimensional reconstruction provide basis.
As shown in figure 4, the three-dimensional microscopical structure model of generation block stone can be carried out in the following way：
Step S20, the CT tomographic sequences imported after splitting to block stone section are (i.e.：Soil-rock mixture two-dimensional ct is cut into slices
Sequence image).
Step S21, all pieces of stone section borders on every CT sectioning image are identified successively with numbering, and calculate
The geometric properties indexs such as its girth, area, centre of form coordinate, in storing it in two-dimensional block stone section boundary information database.
Step S22, the CT sectioning images for choosing soil-rock mixture sample top surface (or bottom surface) are original bench mark image, by suitable
Sequence (or backward) enters the previous benchmark CT image in the whole block stone section borders on all two-dimensional ct Slice Sequence images and its
Row bound registration.According to the morphology principle of similitude, section border of the same block of stone in adjacent two sections has close several
What characteristic index, travels through i-th (1<I≤n, n are that the sectioning image in a two-dimensional ct sequence for soil-rock mixture sample is total
Number) all pieces of stone section borders on CT sectioning images, detect and wherein break with j-th block of stone on the i-th -1 CT sectioning image
Face border SI-1, jThe block stone section border S of registrationI, k, and assign both identical block stone numbering, the three-dimensional bits stone border that will be obtained
Data storage is in three-dimensional bits stone information database.Disappeared for old piece of stone border in certain sectioning image and occurred with new block stone border
Situation, the integral blocks stone that upgrades in time numbering and database information.
The three-dimensional bits stone that step S23, the two-dimensional cross-section boundary information database obtained using S21 steps and S22 steps are obtained is believed
The three-dimensional bits stone data boundary stored in breath database, builds the surface triangle gridding of each block stone, realizes soil-rock mixture
The three-dimensional reconstruction of sample internal block stone, so as to obtain the threedimensional model that can reflect soil-rock mixture microscopical structure.
Step S24, the soil-rock mixture sample threedimensional model of foundation is preserved and is output as picture or general data form.
The universal data formats such as * .stl or * .gts are saved as by by the block stone model in three-dimensional reconstruction soil-rock mixture sample, can be given birth to
Carry out simulation into numerical model to calculate and be compared checking with the physical results of respective samples, while also allowing for using other
The softwares such as CAD, CAM are checked and shown.
As shown in figure 5, be Complicate soil medium microscopical structure three-dimensional reconstruction system 30 in one embodiment of the invention, mainly
By reconstructing three-dimensional model module 31, three-dimensional microscopical structure Information Statistics analysis module 32 and three-dimensional samples visualization model 33 3
Divide and constitute.The system is mainly used in computer installation 15, and the computer installation includes the storage connected by data/address bus
Device 16, processor 17, input equipment 18 and output equipment 19.
The reconstructing three-dimensional model module 31, including：Image preprocessing, block stone section boundary marking and registering, three-dimensional bits
The function such as stone resurfacing and model output, according to the soil-rock mixture sample tomography sequence image that CT scan is obtained, based on upper
The method of stating pre-processed and cut into slices between block stone section Boundary Match, finally realize the three of soil-rock mixture internal block stone model
Dimension is rebuild, and three-dimensional microscopical structure model is exported with general data form, so as to numerical computations.
The three-dimensional microscopical structure Information Statistics analysis module 32, for carefully seeing knot to soil-rock mixture three-dimensional reconstruction sample
Structure information carries out statistical analysis.Three shaft sizes of the single block of stone of three-dimensional reconstruction feature modeling according to sample internal block stone, length are thin
Than, the geometrical property index such as surface area, volume, the space such as the morphological character index such as sphericity, corner angle, and block stone long-axis orientation
Alignment characteristics, and be stored in three-dimensional bits stone information database.Statistics soil-rock mixture rock-soil ratio, size distribution are constituted and empty accordingly
Between distribution etc. structural information.
The three-dimensional samples visualization model 33, for being carried out visually to the soil-rock mixture sample threedimensional model after reconstruction
Change display.According to the three-dimensional reconstruction data of sample internal block stone, realize that threedimensional model and model are cutd open using three-dimensional visualization technique
Tangent plane is rendered, shown, and can realize checking and internal block stone to threedimensional model internal structure cutting plane by man-machine interaction
The real-time query of geometrical property, morphological character information.
Method according to embodiments of the present invention, can easily set up its corresponding three-dimensional knot according to soil-rock mixture sample
Structure model, and the characteristic such as granularmetric composition, form to sample internal block stone carries out quantitative analysis, while the three-dimensional of implementation model can
Depending on changing displaying and storage, for the physical mechanics numerical experimentation of soil-rock mixture provides support.
Compared to existing mode, the method for the present invention can be utilized when being modeled to soil-rock mixture three-dimensional microscopical structure
Soil-rock mixture CT tomography sequence images, the three-dimensional microscopical structure model of soil-rock mixture is realized in the case where sample is not destroyed
Rebuild, the sample after scanning can proceed with indoor physical mechanics test research.According to the soil-rock mixture sample mold after reconstruction
Type, can carry out statistical analysis to information such as its internal block stone geometric shape feature, granularmetric composition, spatial distributions, and can be to model
Rendered, the inquiry operation such as cutting.Meanwhile, the model after reconstruction can directly be stored as universal data format, for numerical value
Experimental study.The method of the present invention, substantially increases the degree that becomes more meticulous of institute's generation model, is tried in numerical experimentation and physical mechanics
Bridge tie is established between testing, so that the physico-mechanical properties numerical experimentation research carried out on this basis is more reasonable
With reliability.
Further embodiment of the present invention provides a kind of soil-rock mixture three-dimensional microscopical structure and rebuilds and analysis system.Such as
Shown in Fig. 7, with reference to Fig. 1,2 and 5, the system 700 includes：(such as organic glass system sample of soil-rock mixture sample preparation device 40
Cylinder), CT faultage images scanning means 50 (such as CT Scanner), reconstructing three-dimensional model module 31 and three-dimensional microscopical structure Information Statistics
Analysis module 32.
Wherein, soil-rock mixture sample preparation device 40 is used to prepare soil-rock mixture sample.CT faultage images scanning dress
50 are put for being scanned to obtain the CT tomographic sequences of the soil-rock mixture sample to the soil-rock mixture sample.
Reconstructing three-dimensional model module 31 is used to obtain the Kuai Shi sections area in the CT tomographic sequences in each CT faultage image
Domain, and described piece of stone cross sectional area is split to obtain multiple independent block stone sections, and it is disconnected to each CT
Multiple independent block stone section in tomographic image carries out registration, and the three-dimensional microscopical structure mould of block stone is generated according to registration result
Type.Three-dimensional microscopical structure Information Statistics analysis module 32 is used to be analyzed with true the three-dimensional microscopical structure model of described block of stone
Determine rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and the block stone morphological character of soil-rock mixture sample.
Further, reconstructing three-dimensional model module 31 is used for：To each CT tomograph in the CT tomographic sequences
As being filtered denoising；Each CT faultage image after to filtering and noise reduction carries out binary conversion treatment to determine described piece of stone section
Region and soil body region；Described piece of stone cross sectional area is split to obtain by the morphological image computing corroded and expand
Multiple independent block stone sections.
Additionally, reconstructing three-dimensional model module 31 is additionally operable to：Successively to all pieces of stone sections on each CT faultage image
Border be identified with numbering, and calculate the geometric properties index of each block stone section；To the block on all CT faultage images
The border of stone carries out registration to obtain the registration result；Geometric properties index and the registration knot according to described piece of stone section
Fruit generates the described piece of three-dimensional microscopical structure model of stone.
With reference to shown in Fig. 5, also include：Three-dimensional Display computer installation 33 (i.e. three-dimensional samples visualization model), is used for
The three-dimensional microscopical structure model of block stone is rendered and shown.
It should be noted that the specific implementation of the specific implementation of the system of the embodiment of the present invention and method part
It is similar, in order to reduce redundancy, do not repeat.
System according to embodiments of the present invention, can easily set up its corresponding three-dimensional knot according to soil-rock mixture sample
Structure model, and the characteristic such as granularmetric composition, form to sample internal block stone carries out quantitative analysis, while the three-dimensional of implementation model can
Depending on changing displaying and storage, for the physical mechanics numerical experimentation of soil-rock mixture provides support.
Compared to existing mode, system of the invention can be utilized when being modeled to soil-rock mixture three-dimensional microscopical structure
Soil-rock mixture CT tomography sequence images, the three-dimensional microscopical structure model of soil-rock mixture is realized in the case where sample is not destroyed
Rebuild, the sample after scanning can proceed with indoor physical mechanics test research.According to the soil-rock mixture sample mold after reconstruction
Type, can carry out statistical analysis to information such as its internal block stone geometric shape feature, granularmetric composition, spatial distributions, and can be to model
Rendered, the inquiry operation such as cutting.Meanwhile, the model after reconstruction can directly be stored as universal data format, for numerical value
Experimental study.System of the invention, substantially increases the degree that becomes more meticulous of institute's generation model, is tried in numerical experimentation and physical mechanics
Bridge tie is established between testing, so that the physico-mechanical properties numerical experimentation research carried out on this basis is more reasonable
With reliability.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of soil-rock mixture three-dimensional microscopical structure is rebuild and analysis method, it is characterised in that comprise the following steps：
Prepare soil-rock mixture sample；
CT scan is carried out to the soil-rock mixture sample to obtain the CT tomographic sequences of the soil-rock mixture sample；
The block stone cross sectional area in each CT faultage image in the CT tomographic sequences is obtained, and to described piece of stone section
Split to obtain multiple independent block stone sections in region；
Multiple independent block stone section in each CT faultage image carries out registration, and generates block according to registration result
The three-dimensional microscopical structure model of stone, further includes：
The border of all pieces of stone sections on each CT faultage image is identified successively with numbering, and calculate each block stone
The geometric properties index of section；
Border to the block stone section on all CT faultage images carries out registration to obtain the registration result, the step of the registration
Suddenly include：Each block stone section boundary information for the piecemeal mark in the section of adjacent C T faultage images that will be obtained, according to its shape
Step response and locus carry out match cognization, obtain constituting the block stone section border in all CT sections of each block stone；
Geometric properties index and the registration result according to described piece of stone section generate the three-dimensional microscopical structure model of block stone, raw
The step of into the three-dimensional microscopical structure model, includes：According to the block stone section information after matching, build and characterize each block stone table
The triangle gridding in face, sets up all pieces of threedimensional models of stone in soil-rock mixture sample inside；
And
Three-dimensional microscopical structure model to described block of stone is analyzed to determine rock-soil ratio, the granularity of the soil-rock mixture sample
Distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
2. method according to claim 1, it is characterised in that wherein, the native stone is prepared by lucite sample preparation cylinder
Mixture sample, is scanned by CT Scanner to the soil-rock mixture sample.
3. method according to claim 1, it is characterised in that each CT tomography in the acquisition CT tomographic sequences
Block stone cross sectional area in image, and described piece of stone cross sectional area is split to obtain multiple independent block stone sections, enter
One step includes：
Denoising is filtered to each CT faultage image in the CT tomographic sequences；
Each CT faultage image after to filtering and noise reduction carries out binary conversion treatment to determine described piece of stone cross sectional area and the soil body
Region；
Described piece of stone cross sectional area is split by the morphological image computing corroded and expand multiple independent to obtain
Block stone section.
4. the method according to claim any one of 1-3, it is characterised in that the three-dimensional microscopical structure model to block stone
It is analyzed to determine rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and the block stone of soil-rock mixture sample
Morphological character, further includes：
The three-dimensional microscopical structure model of block stone is rendered and shown, is rendered and shown that result determines that the native stone is mixed with basis
The rock-soil ratio of fit sample, size distribution, block stone spatial distribution, block stone geometrical property and block stone morphological character.
5. a kind of soil-rock mixture three-dimensional microscopical structure is rebuild and analysis system, it is characterised in that including：
Soil-rock mixture sample preparation device, for preparing soil-rock mixture sample；
CT faultage image scanning means, for carrying out CT scan to obtain the soil-rock mixture to the soil-rock mixture sample
The CT tomographic sequences of sample；
Reconstructing three-dimensional model module, for obtaining the block stone section in the CT tomographic sequences in each CT faultage image
Region, and described piece of stone cross sectional area is split to obtain multiple independent block stone sections, the reconstructing three-dimensional model mould
Block is additionally operable to：
The border of all pieces of stone sections on each CT faultage image is identified successively with numbering, and calculate each block stone
The geometric properties index of section；
Border to the block stone section on all CT faultage images carries out registration to obtain the registration result, the step of the registration
Suddenly include：Each block stone section boundary information for the piecemeal mark in the section of adjacent C T faultage images that will be obtained, according to its shape
Step response and locus carry out match cognization, obtain constituting the block stone section border in all CT sections of each block stone；
Geometric properties index and the registration result according to described piece of stone section generate the three-dimensional microscopical structure model of block stone, raw
The step of into the three-dimensional microscopical structure model, includes：According to the block stone section information after matching, build and characterize each block stone table
The triangle gridding in face, sets up all pieces of threedimensional models of stone in soil-rock mixture sample inside；
And
Three-dimensional microscopical structure Information Statistics analysis module, is analyzed with true for the three-dimensional microscopical structure model to described block of stone
Rock-soil ratio, size distribution, block stone spatial distribution, block stone geometrical property and the block stone form for determining the soil-rock mixture sample are special
Property.
6. system according to claim 5, it is characterised in that wherein, the soil-rock mixture sample preparation device is to have
Machine glass sample preparation cylinder, the CT faultage images scanning means is CT Scanner.
7. system according to claim 5, it is characterised in that the reconstructing three-dimensional model module is used for：
Denoising is filtered to each CT faultage image in the CT tomographic sequences；
Each CT faultage image after to filtering and noise reduction carries out binary conversion treatment to determine described piece of stone cross sectional area and the soil body
Region；
Described piece of stone cross sectional area is split by the morphological image computing corroded and expand multiple independent to obtain
Block stone section.
8. the system according to claim any one of 5-7, it is characterised in that also include：Three-dimensional Display computer installation, uses
Rendered and shown in the three-dimensional microscopical structure model to block stone.
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| CN104331922B (en) * | 2014-11-01 | 2017-03-15 | 西安科技大学 | A kind of Soil Microstructure three-dimensional rebuilding method |
| CN105424430A (en) * | 2015-11-05 | 2016-03-23 | 河海大学 | Manufacturing method of cemented soil and stone mixed sample |
| CN105956314A (en) * | 2016-05-16 | 2016-09-21 | 河海大学 | Numerical test method capable of creating different earth-rock mixing ratios |
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| CN107680058A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨工业大学深圳研究生院 | Permanent delay smooth filtering method based on green space in CT image denoisings |
| CN108376422A (en) * | 2018-01-05 | 2018-08-07 | 中山大学 | A kind of continuous across the scale measurement characterizing method of rock-soil material |
| CN108961388B (en) * | 2018-06-05 | 2023-03-21 | 哈尔滨工业大学深圳研究生院 | Microstructure three-dimensional modeling method, microstructure three-dimensional modeling device, microstructure three-dimensional modeling equipment and computer storage medium |
| CN110907317A (en) * | 2018-09-14 | 2020-03-24 | 中石化石油工程技术服务有限公司 | Rock particle analysis method, device, equipment and computer readable storage equipment |
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| CN109509251B (en) * | 2018-11-08 | 2023-02-28 | 重庆大学 | Multi-factor three-dimensional soil-rock mixture generation method |
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| CN109632429B (en) * | 2019-01-30 | 2020-06-16 | 中国水利水电科学研究院 | Sample preparation method for soil-rock mixture double-shaft compression test |
| CN110069844B (en) * | 2019-04-15 | 2020-10-30 | 武汉大学 | Mesoscopic model generation method considering rock structure characteristics and mineral composition |
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