CN106127856B - The method that the strata model of column containing crack is made based on CT scan and 3D printing - Google Patents
The method that the strata model of column containing crack is made based on CT scan and 3D printing Download PDFInfo
- Publication number
- CN106127856B CN106127856B CN201610478705.3A CN201610478705A CN106127856B CN 106127856 B CN106127856 B CN 106127856B CN 201610478705 A CN201610478705 A CN 201610478705A CN 106127856 B CN106127856 B CN 106127856B
- Authority
- CN
- China
- Prior art keywords
- crack
- column
- model
- strata model
- containing crack
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Computer Graphics (AREA)
- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a kind of method that the strata model of column containing crack is made based on CT scan and 3D printing, this method has been produced consistent with natural rock body internal structure and has contained fissare column strata model from angle of the crack to rock mass mechanics performance impact.After the image of CT scan is rebuild, the three-dimensional mask editting function for handling software using 3-D view makes crack, then the column strata model containing crack is obtained using 3D printing technique, applied in material properties of rock research.The crack at different sizes and inclination angle can accurately be produced according to different requirement of experiment, new approach is provided to study the mechanical property containing crack rock.
Description
Technical field
The invention belongs to rock mass mechanics and engineering field, it is related to the system of model when Experiments of Machanics are studied in rock material room
Make, and in particular to a kind of method that the strata model of column containing crack is made based on CT scan and 3D printing technique.
Background technology
Rock mass is the geologic body formed by long-time geologic process, contain several mineral materials and a large amount of holes, joint,
The structural planes such as crack, its internal structure is extremely complex.
In rock mechanics and engineering field, the means of the mechanical property of rock mass are studied when being tested mainly live original position
Experiment and indoor model experiments.Live in-situ sampling and experiment are carried out by existing technical merit, quantities is big, cost is high,
Sample is limited, and obtained experimental result discrete type is big, it is difficult to the need for reaching engineering practice.Being used indoor model experiments more
Analog material carries out pouring model, although mechanical property and natural rock mass relatively, but use artificial method for making sample, in examination
Prefabricated crack is repeatable poor inside sample, and baroque sample can not almost be completed.
3D printing technique is a kind of by being successively bonded cumulative mode, and powdered plastics or metal material are configured to
The method of 3D solid.With the gradually development of new and high technology, 3D printing technique with CT scan technology, area of computer aided skill
Art, material technology and laser technology are combined, and Successful utilization is in various fields such as medical treatment, aviation, national defence, construction industry, manufacturing industry.
The content of the invention
For the defect or deficiency of above-mentioned prior art operation, it is an object of the present invention to provide a kind of be based on CT scan
And the method that 3D printing makes the strata model of column containing crack, CT scan technology and 3D printing technique be combined by this method, energy
The internal structural information of natural rock mass sample is enough simulated, can go out to meet different experiments by 3-D view processing software development will
The crack asked, and can largely make the column strata model with identical crack.
In order to realize above-mentioned task, the present invention takes following technical solution：
A kind of method that the strata model of column containing crack is made based on CT scan and 3D printing, it is characterised in that this method
Comprise the following steps：
1) natural column rock mass sample is scanned using CT machines, obtains the scan image of sample；
2) by step 1) in obtained image exported with DICOM form, be used as scan data；
3) by step 2) in obtained data input MIMICS softwares, image is carried out after dividing processing, establishment is utilized
Program carries out three-dimensional mask editor to image, obtains the crack at specific dimensions containing crack rock and inclination angle, carries out 3D calculating and obtains
The threedimensional model of the rock mass of column containing crack, and exported with STL form；
4) powdery starting material that selection modelling containing crack rock needs, including emery dust powder material, crack powder material
Material and cementing material；
5) by step 3) in obtained stl file imported into 3D printer, contained using 3D printer and 3DP techniques
The making of crack column strata model；
6) after the strata model of column containing crack completes, post-processing is carried out, that is, obtains the column rock mass three containing crack
Dimension module.
According to the present invention, step 3) described in dividing processing carried out to image be to discriminate between out high density inside column sample
Area and low density area, restore the internal structure of the natural rock mass of column containing crack.
As currently preferred, in step 3) described in model of fissuration containing crack rock when making, using three-dimensional
Behind mask editing and processing, the shape, length and width and the inclination angle that carry out setting crack mask, then crack mask rejected in a model, pressed
Different requirement of experiment precasts the crack at different sizes and inclination angle.
Further, the shape of crack mask is set as first square, then the length and width and inclination angle to crack mask are entered
Row setting, can set the crack mask of different length and different angle, by the geological information of crack mask according to experimental program
After the completion of setting, crack mask is rejected by the size editor set on model, this step can also be picked according to experimental program
Except the crack mask of varying number, three-dimensionalreconstruction is carried out after the completion of three-dimensional mask editor, the column Three-dimensional Rock containing crack is obtained
Model.
Be used as currently preferred, step 4) in the strata model of column containing crack select emery dust powder material, crack use
Crack dusty material, be bonded with the cementing material of different ratio.
Be used as currently preferred, step 5) in 3D printer and 3DP techniques carry out column containing crack strata model
Making specific method includes：Emery dust powder material or crack dusty material in powder feeding cylinder is equably layered on working piston by powder-laying roller
On, cementing material is sprayed on powder by the shower nozzle of printer according to the predetermined cross sectional shape of computer to be bonded, Ran Houcheng
Type cylinder declines a thickness, and powder-laying roller starts powdering again, then is bonded, and repeats said process until whole post containing crack
Shape strata model completes.
Be used as currently preferred, step 5) in the processing method of low density area be：In 3D printing column containing crack rock mass
During sample, powdering is carried out in density regions part but without bonding, these powder are then locked in the rock of column containing crack
Inside body Model, the relatively low region of the natural rock mass internal density of column containing crack is simulated with this.
It is used as currently preferred, step 6) in, the method for described post-processing is that the strata model of column containing crack is beaten
Print is completed, and after powder is fully bonded, crack dusty material is taken out, and brushes away excess surface powder, and hanging makes cementing material
Volatilization is fully condensed, the final rock mass sample of column containing crack is obtained.
The method that the strata model of column containing crack is made based on CT scan and 3D printing of the present invention, without using mould and
The internal structural information of natural rock mass can be restored under conditions of instrument, and software development is handled by 3-D view to go out completely
The crack of sufficient different experiments requirement, obtains the laboratory experiment model that conventional method does not reach.Pass through CT scan and three-dimensionalreconstruction skill
Art, can obtain the real internal labyrinth information of rock mass, reach visual effect.3D printing skill is used on this basis
Art, can carry out containing different length, different angle, the crack rock model of varying number making, manufacturing process it is time-consuming it is short,
It can carry out largely repeating sample preparation, be laid a good foundation for the research of the mechanical property containing crack rock.
Brief description of the drawings
Fig. 1 is three-dimensional printing art (3DP) workflow diagram；
Fig. 2 is the strata model Making programme figure of column containing crack.
It is further to the present invention with reference to the accompanying drawings and examples to be described in detail.
Embodiment
It should be noted that following embodiment is only the preferred embodiment of the present invention, the invention is not restricted to these realities
Apply example.
Embodiment 1：
As shown in figure 1, three dimensional printing (3DP) technique in the 3D printing technique that the present embodiment is used, major print equipment
Including powder feeding cylinder, moulding cylinder, recovery tank, cementing agent supply cylinder, powder feeding roller and printing head, entirely work by computer control
System is controlled.The Medical CT machine that CT scan is used in the present embodiment is the row's dynamic volume CT of Toshiba Aquilion One 320
Machine, x-ray source high pressure 120kV, CD imaging sensor GTG 16bit, sweep speed is fast, imaging time 0.175s；Obtain sample
Two-dimentional tomoscan image.The present embodiment uses VX1000 3D printers, and the modeling space of the printer is 1060*600*
500 millimeters, resolution ratio is 600dpi.
Referring to Fig. 2, the present embodiment provides one kind and makes the strata model of column containing crack based on CT scan and 3D printing technique
Method, comprise the following steps：
1) application CT scan technology obtains column rock mass sample internal structural information, using Medical CT machine to natural column rock
Body sample carries out section scanning, and scanning voltage is that 120kV, electric current are 300mA, along the natural rock mass sample of column containing crack from upper
The lower continuous scanning in 500 μm of interval, obtains the natural rock mass of column containing the crack sample original CT image data of Dicom forms.
2) by step 1) in obtained image imported into 3-D view processing MIMICS softwares, first carry out image segmentation portion
High density area and low density area in reason, separation column rock mass sample, carry out three-dimensional computations and obtain complete column rock mass sample
Threedimensional model, then edits a crack masking-out by three-dimensional mask edit operation, is first set as the shape of crack mask
It is square, the length of crack mask is then set to 8mm, width is set to 1.2mm, and inclination angle is set to 60 °.
After the completion of the geological information setting of crack mask, crack mask is rejected by the size editor set on model.
Three-dimensionalreconstruction is carried out again after the completion of three-dimensional mask editor, obtains the column Three-dimensional Rock model containing crack.
3) by step 2) in the obtained column strata model containing crack imported into 3D printer and beaten with STL forms
Print, before printing, the printing thickness for setting the column strata model containing crack is 0.15mm, and the present embodiment is from the last material of GS19 emery dusts
Material and crack dusty material carry out the column rock mass containing crack as the column strata model base material containing crack using 3DP techniques
Modelling.
4) to step 3) in the processing method of low density area be：In column strata model of the 3D printing containing crack, low
Density area part carries out powdering but without bonding, and then these powder are locked in the column strata model containing crack
Portion, some density and the lower slightly region of intensity inside rock mass are simulated with this.
5) to step 3) in 3D printer and 3DP techniques carry out the strata model of column containing crack making specific method bag
Include：Emery dust powder material or crack dusty material in powder feeding cylinder is equably layered on working piston by powder-laying roller, the spray of printer
Cementing material is sprayed on powder by head according to the predetermined cross sectional shape of computer to be bonded, and then moulding cylinder declines a layer
Thickness, powder-laying roller starts powdering again, then is bonded, and repeats said process until the whole strata model of column containing crack makes
Complete.
6) after the strata model of column containing crack completes, post-processing is carried out, that is, obtains the column rock mass three containing crack
Dimension module.
The method of described post-processing is that the printing of the strata model of column containing crack is completed, after powder is fully bonded, will
Crack dusty material takes out, and brushes away excess surface powder, and hanging makes cementing material fully condense volatilization, obtains final containing and splits
Gap column rock mass sample.
The a diameter of 5cm for the column strata model containing crack that the present embodiment makes, is highly 10cm.
Embodiment 2：
The equal be the same as Example 1 of making step, except that the inclination angle of prefabricated crack is 45 °.
Embodiment 3：
The equal be the same as Example 1 of making step, except that the inclination angle of prefabricated crack is 30 °.
Claims (3)
1. a kind of method that the strata model of column containing crack is made based on CT scan and 3D printing, it is characterised in that this method bag
Include following steps：
1) column rock mass sample is scanned using CT machines, obtains the scan image of sample；
2) by step 1) in obtained image exported with DICOM form, be used as scan data；
3) by step 2) in obtained data input MIMICS softwares, dividing processing, the three of regeneration rock mass are carried out to image
Dimension word model, carries out three-dimensional mask editor one three-dimensional fracture masking-out of generation using program and rejects the masking-out in a model,
The crack at the different sizes of rock mass and inclination angle is obtained, 3D is carried out and calculates the threedimensional model for obtaining the rock mass of column containing crack, and with STL's
Form is exported；
Described carries out high density area and low density area that dividing processing is to discriminate between out inside column sample to image, restores day
The internal structure of right column rock mass；
When the crack of the strata model makes, using three-dimensional mask editing and processing, shape, the length and width of setting crack mask are carried out
Crack mask rejected behind inclination angle, then in a model, the crack at different sizes and inclination angle is precast by different requirement of experiment；
4) selection modelling containing crack rock need powdery starting material, including emery dust powder material, crack dusty material and
Cementing material；
5) by step 3) in obtained stl file imported into 3D printer, utilize 3D printer and three dimensional printing (3DP) technique
Carry out the making of the strata model of column containing crack；
The processing method of the low density area is：In 3D printing column containing crack rock mass sample, enter in density regions part
Row powdering but without bonding, then these powder are locked in inside column strata model, natural column rock is simulated with this
The relatively low region of body internal density；
Step 5) in 3D printer and 3DP techniques carry out the strata model of column containing crack making specific method include：Powdering
Emery dust powder material or crack dusty material in powder feeding cylinder is equably layered on working piston by roller, and the shower nozzle of printer will be cementing
Material is sprayed on powder according to the predetermined cross sectional shape of computer and is bonded, and then moulding cylinder declines a thickness, powdering
Roller starts powdering again, then is bonded, and repeats said process until the whole strata model of column containing crack completes.
6) after the strata model of column containing crack completes, post-processing is carried out, that is, obtains the column Three-dimensional Rock mould containing crack
Type.
2. the method as described in claim 1, it is characterised in that step 4) in the emery dust end that selects of the strata model of column containing crack
Material, crack uses crack dusty material, is bonded with the cementing material of different ratio.
3. the method as described in claim 1, it is characterised in that step 6) in, the method for described post-processing is, containing crack
The printing of column strata model is completed, and after powder is fully bonded, crack dusty material is taken out, and brushes away excess surface powder,
Hanging makes cementing material fully condense volatilization, obtains the final rock mass sample of column containing crack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478705.3A CN106127856B (en) | 2016-06-27 | 2016-06-27 | The method that the strata model of column containing crack is made based on CT scan and 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478705.3A CN106127856B (en) | 2016-06-27 | 2016-06-27 | The method that the strata model of column containing crack is made based on CT scan and 3D printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106127856A CN106127856A (en) | 2016-11-16 |
| CN106127856B true CN106127856B (en) | 2017-09-01 |
Family
ID=57267100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610478705.3A Expired - Fee Related CN106127856B (en) | 2016-06-27 | 2016-06-27 | The method that the strata model of column containing crack is made based on CT scan and 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106127856B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908289B (en) * | 2017-02-07 | 2019-07-23 | 河海大学 | A kind of prismatical joint rock mass preparation method of sample of cylinder stomata containing filling |
| CN107976352B (en) * | 2017-12-08 | 2020-04-07 | 东北大学 | Manufacturing method for simulating transparent tunnel model containing complex fracture network |
| CN108240930A (en) * | 2018-01-20 | 2018-07-03 | 大连理工大学 | A kind of rocks preparation method of sample containing built-in crack based on 3D printing technique |
| CN108593373A (en) * | 2018-01-30 | 2018-09-28 | 上海理工大学 | The method for preparing rock joint shear rheological test sample based on 3D printing technique |
| CN108252336B (en) * | 2018-02-01 | 2019-12-24 | 重庆大学 | Method for constructing discontinuous three-dimensional slope indoor model test by 3D printing technology |
| CN108436081A (en) * | 2018-03-06 | 2018-08-24 | 无锡市产品质量监督检验院 | A kind of test button 3D printing manufacturing process of preset defect |
| CN110126058B (en) * | 2019-05-20 | 2020-10-09 | 重庆大学 | Rock sample preparation method based on CT visualization and 3D printing |
| CN110243699B (en) * | 2019-06-03 | 2022-09-27 | 绍兴文理学院 | Surface morphology grid tracking and restoring method for rock model structural surface visual test |
| CN112177571B (en) * | 2019-06-14 | 2023-04-07 | 中国石油化工股份有限公司 | Reservoir deficit sand control well gravel packing degree simulation experiment device and method |
| CN110774406A (en) * | 2019-10-10 | 2020-02-11 | 长安大学 | Preparation method of permeable floor tile based on 3D printing |
| CN111750750B (en) * | 2020-08-20 | 2023-03-28 | 武汉科技大学 | Method for comparing vertical and axial crack propagation efficiency of blast hole in rock blasting |
| CN114889124B (en) * | 2022-05-23 | 2023-12-15 | 昆明理工大学 | Rock mechanics experiment test piece preparation method |
| CN115359706B (en) * | 2022-08-30 | 2023-06-27 | 中国电建集团成都勘测设计研究院有限公司 | Model system for simulating complex geology |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860295A (en) * | 2014-03-07 | 2014-06-18 | 北京大学第三医院 | Digital design and manufacturing method for knee joint tibia prosthesis |
| CN103860293B (en) * | 2014-03-07 | 2016-04-06 | 北京大学第三医院 | A kind of personalized reversal design of full knee joint transposing prosthesis and manufacture method |
| CN104462650B (en) * | 2014-11-10 | 2017-11-07 | 张建卿 | A kind of hypostazation heart 3D model production methods of achievable external and internal compositionses |
-
2016
- 2016-06-27 CN CN201610478705.3A patent/CN106127856B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106127856A (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106127856B (en) | The method that the strata model of column containing crack is made based on CT scan and 3D printing | |
| CN109063257B (en) | A kind of coal and rock subregion water filling seepage flow-damage-stress coupling method for numerical simulation | |
| Jiang et al. | Modeling rock specimens through 3D printing: Tentative experiments and prospects | |
| Xu et al. | Digital reproduction of historical building ornamental components: From 3D scanning to 3D printing | |
| Lee et al. | Direct integration of reverse engineering and rapid prototyping | |
| Song et al. | Feasibility investigation of 3D printing technology for geotechnical physical models: study of tunnels | |
| Ju et al. | Numerical analysis of the failure process of soil–rock mixtures through computed tomography and PFC3D models | |
| CN106447776A (en) | Complex fractured rock mass physical model manufactured based on 3D printing productionand modeling method | |
| CN109001237B (en) | A kind of rock mass internal structure production method based on CT scan and 3D printing | |
| Bertoldi et al. | Domain decomposition and space filling curves in toolpath planning and generation | |
| CN108819215A (en) | Unconventional petrophysical model 3D printing method and apparatus in high precision | |
| CN106501090A (en) | Fracture characterization method for hydraulic fracturing simulation experiment | |
| CN106123803A (en) | A kind of rock beam uneven acid etching parameter evaluation method | |
| CN108437153A (en) | A kind of method of construction of lunar base outer shell | |
| CN107914397A (en) | A kind of 3D objects determine area's Method of printing and system | |
| Papazetis et al. | Direct porous structure generation of tissue engineering scaffolds for layer-based additive manufacturing | |
| CN103150416A (en) | Designing a modeled volume represented by dexels | |
| Guo et al. | 3D modeling for mine roadway from laser scanning point cloud | |
| Papas et al. | The integration of 3D technologies and finite element analysis (FEA) for the restoration of an ancient terra sigillata plate | |
| Joy et al. | Efficient milling part geometry computation via three-step update of frame-sliced voxel representation workpiece model | |
| CN107084895A (en) | A kind of soil-rock mixture compaction test analogy method and system based on block stone form | |
| Liu et al. | Quantitative investigation of the cracking mechanism of 3D sand-printed rock containing a fold flaw | |
| CN116990489A (en) | High-level landslide instability and motion simulation method and device | |
| CN111079266A (en) | Periodic numerical model generation method and device for heterogeneous rock-soil material | |
| CN114969861A (en) | Method for finely identifying large-scale rock mass structure and acquiring size effect parameters |
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: 20170901 Termination date: 20200627 |