CN105678843B - A kind of mixing volume elements model of geological structure body local Rapid Updating - Google Patents
A kind of mixing volume elements model of geological structure body local Rapid Updating Download PDFInfo
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Abstract
The invention discloses a kind of mixing volume elements model of geological structure body local Rapid Updating, first complete the overall structure mixing volume elements model of geological structure body (IHG TIN model, Irregular hexahedron grid Irregular Hexahedron Grid and triangulation network Triangle Irregular Network).If local has new boring or other survey data to need to update mixing volume elements model of geological structure body, the local mixing volume elements model of geological structure body with yardstick for the local only need to be built, replace the volume elements of master mould same position using new volume elements local, new FEM layer model is extracted again mixing volume elements model of geological structure body after updating, complete the topological relation of FEM layer model and the renewal of geological property, thus realize quick local dynamic station updating, original model all need not shift reconstruction onto, can improve geologic body and dynamically update efficiency and model of geological structure body precision.
Description
Technical field
The application is related to geological exploration field, more particularly, to a kind of mixing volume elements model of geological structure body local quickly renewal side
Method.
Background technology
External three-dimensional geological modeling originates in 20 century 70s.
Wherein, relatively more influential have：
J.L.Mallet (1989) professor of France Nancy. university proposes " discrete smooth interpolation method " technology, based on this skill
Art develops a three-dimensional geological modeling software, and its modeling approach substantially belongs to aspect modeling.
Subsequently, Bezier-NURBS (Bezier-non-uniform rational B-spline) compound curved surface of DeKemp (1999) carrys out matching
Three dimensional structure face, Courrioux etc. (2001) propose Voronoi (voronoi she) figure build geological object etc. broadly fall into
The aspect modeling of layer homogenizing, all can not express the heterogeneous fine attribute of each point.
Recently,F. (2013) are waited to study the geologic body the solid unit modeling of Aeromagnetic data, Watson Carl etc.
(2015) research TIN model conversion is become the integrated model of geologic process of three-dimensional grid, Hoyer etc. (2015) by geological property,
The change of data type etc. is considered in geological modeling.
This shows that Geologic modeling develops to fine modeling direction.
So far, abroad have been developed for some three-dimensional geological modeling softwares, but these modeling methods and modeling software are multiple
Miscellaneous geologic body fine modeling, dynamic renewal still have difficulties.
Domestic three-dimensional geological modeling research starts from the nineties in 20th century.Wu Chonglong etc. (1996) takes the lead in developing using IDL
Three-Dimensional Basin modeling software, hereafter three-dimensional modeling research gradually spreads out.Wherein, had based on the representative of boring modeling method：Hou En
Section (2002), Wu Lixin (2004), Wuqiang County (2004) etc. propose generalized tri-prism (GTP) model, develop correlation modeling soft
Part.The defect of this modeling approach is cannot to process to have a case that complicated structure face.
Had based on the Typical Representative of aspect modeling method：The Hydraulic and Hydro-Power Engineering geology that Zhong Denghua etc. (2005) develops is three-dimensional
Modeling；Bend red firm grade (2008) based on the three-dimensional geological model rapid build intersecting folded profile；Old equality (2014) of building weighs
Point metallogenic belt big medium scale three-dimensional geological modeling method.The anisotropism that this modeling approach is beyond expression within same layer.?
Closely, He Zhenwen etc. (2012), Weng Zhengping (2013) have carried out Dynamic and Multi dimensional modeling, the quick structure of complicated geological body three-dimensional models respectively
Build the research with aspects such as update method.Show that domestic Geologic modeling is developing to fine modeling, dynamic more new direction.
Although three-dimensional geological object model achieves tremendous development, also some research worker have attempted the dynamic renewal of geologic body
Research, these update methods are all based on the thinking from FEM layer model to volume element model, there is topology during model modification simultaneously and close
System and attribute information update difficult, the low problem of efficiency, sometimes must push over block mold and all rebuild it is impossible to realize local
Quickly dynamically update.
Content of the invention
Invention provides a kind of mixing volume elements model of geological structure body local Rapid Updating, to solve existing modeling not
Enable the local quickly dynamic technical problem updating.
For solving above-mentioned technical problem, the invention provides a kind of quick renewal side in mixing volume elements model of geological structure body local
Method, methods described includes：
Build overall mixing volume elements model of geological structure body using former data；
Built and the described overall mixing identical chi of volume elements model of geological structure body using the local change data in described former data
The local mixing volume elements model of geological structure body of degree；
Replaced using the volume elements in described local mixing volume elements model of geological structure body and update described overall mixing volume elements geologic body
The volume elements of relevant position in model；
Entirety after updating mixes the TIN TIN aspect mould extracting volume elements model of geological structure body after updating
Type.
Preferably, before the described overall mixing volume elements model of geological structure body using former data structure, methods described also includes：
Pretreatment is carried out to described former data.
Preferably, described structure using former data integrally mixes volume elements model of geological structure body, specifically includes：
Built using the TIN TIN FEM layer model that described former data carries out former data；
TIN FEM layer model based on described former data builds described overall mixing volume elements model of geological structure body.
Preferably, described described overall mixing volume elements model of geological structure body is built based on described TIN FEM layer model, concrete wrap
Include：
Enter row constraint using the TIN FEM layer model that described former data builds, the space that FEM layer model is surrounded is carried out not
The subdivision of regular hexahedron, builds the mixing volume elements model of geological structure body rising and falling along various FEM layer models；
Using model attributes instrument, assignment is carried out to the described mixing volume elements model of geological structure body rising and falling along various FEM layer models,
Complete the described overall structure mixing volume elements model of geological structure body.
Preferably, described structure using the local change data in described former data mixes volume elements geologic body with described entirety
The local mixing volume elements model of geological structure body of model same scale, specifically includes：
Change data using described local and carry out the TIN FEM layer model structure that data is changed in local；
Build described local mixing volume elements model of geological structure body using the TIN FEM layer model that data is changed in described local.
Preferably, the described TIN FEM layer model described local mixing volume elements geology of structure changing data using described local
Body Model, specifically includes：
Enter row constraint using the TIN FEM layer model that data structure is changed in described local, local FEM layer model is surrounded
Space carries out the subdivision of Irregular hexahedron, builds the local mixing volume elements model of geological structure body rising and falling along various FEM layer models；
Using model attributes instrument, assignment is carried out to the described mixing volume elements model of geological structure body rising and falling along various FEM layer models,
Complete the structure of described local mixing volume elements model of geological structure body.
By one or more technical scheme of the present invention, the invention has the advantages that or advantage：
The invention discloses a kind of mixing volume elements model of geological structure body local Rapid Updating, first complete entirety and mix volume elements
The structure of model of geological structure body.If local has new boring or other survey data to need to update mixing volume elements model of geological structure body,
The local mixing volume elements model of geological structure body with yardstick for the local only need to be built, replace master mould same position using new volume elements local
Volume elements, then from update after mixing volume elements model of geological structure body extract renewal after TIN FEM layer model, complete TIN aspect mould
The topological relation of type and the renewal of geological property, thus realize quick local dynamic station updating, weight need not all be shifted onto by original model
Build, geologic body can be improved and dynamically update efficiency and model of geological structure body precision.
Brief description
Fig. 1 is IHG-TIN grid plan schematic diagram in the embodiment of the present invention；
Fig. 2 is the implementation process figure of mixing volume elements model of geological structure body local Rapid Updating in the embodiment of the present invention；
Fig. 3 is the Organization Chart that the present invention mixes volume elements model of geological structure body local Rapid Updating.
Specific embodiment
The method of the present invention, starts with from original geologic information (data such as boring, section, attribute), first combines irregular six
Face body volume elements subdivision and geologic body model attributes, complete the structure that geologic body integrally mixes volume elements model of geological structure body.If local has
When new boring or other survey data need to update model of geological structure body, only need to build the local mixing with yardstick by above-mentioned steps
Volume elements model of geological structure body, replaces the volume elements of master mould same position using the volume elements local of local mixing volume elements model of geological structure body
Extract the TIN FEM layer model after updating block, then the mixing volume elements model of geological structure body after updating, complete TIN FEM layer model
The renewal of topological sum geological property, thus realize quick local dynamic station update.The method overcome conventional renewal from face to body
In method the topological relation of new surface model and attribute update difficult, it is to avoid surface model and body Model shift reconstruction onto, improve
Modeling efficiency and precision.
In order that the application the technical staff in the technical field is more clearly understood that the application, below in conjunction with the accompanying drawings,
By specific embodiment, technical scheme is described in detail.
Present invention utilizes mixing volume elements model of geological structure body IHG-TIN model is (i.e.：Irregular hexahedron grid
(Irregular Hexahedron Grid)-TIN (Triangle Irregular Network) model), it
Can (volume element model be permissible by FEM layer model (FEM layer model can Seamless integration- take topological relation, geology into account semantic) and volume element model
Fine expression attribute) unified.And this model can express the multiple dimensioned geological model of storage further.
In this mixing volume elements model of geological structure body (IHG-TIN model), TIN TIN is various for describing storage
Stratal surface and construction face, Irregular hexahedron grid IHG is different from cube grid, and each hexahedral element can not be advised
Then, four points on each face hexahedral can be non-coplanar.This just be free to walking of fluctuating along stratum and tomography
Always subdivision geologic body, generates irregular hexahedral mesh.
Just represent stratal surface and fault plane in the part face of the hexahedral element lattice adjacent with stratal surface and fault plane, just
FEM layer model and volume element model are coupled, IGH-TIN as shown in Figure 1 mixes volume elements grid schematic diagram, and in figure is thick
Lines be fault line, mixing volume elements carry out element subdivision along tomography.Extract layer the follow-up volume elements model of geological structure body from mixing
Surface model becomes easier to, and only need to search out the quadrilateral surface of hexahedral element lattice part adjacent to stratal surface and fault plane
Come, be converted into two trianglees, constitute TIN, you can the extraction completing FEM layer model (comprises stratal surface, construction face, Stratigraphic Time
Attribute, contact relation etc.).
The tactical rule of the L × M × N of cube grid followed in logical structure by IHG-TIN model, that is, in the X direction
Point L cell, divides M cell in the Y direction, divides N number of cell in z-direction, in the special place such as border, irregularly
Hexahedron can be degenerated to various forms by the coincidence of node, but keeps the tactical rule of grid.This mixing volume elements geologic body
Model due to the FEM layer model with spatial topotaxy and the irregular body meta-model that comprises geological property, can express multilamellar
Secondary, multiple dimensioned geologic body refined model is it is also possible to support subsequently various specialty analysis.
Referring to Fig. 2, the technical solution adopted in the present invention is：
S1, builds overall mixing volume elements model of geological structure body using former data.
First, the former data for modeling can be obtained from original geologic information (data such as boring, section, attribute), so
Afterwards pretreatment is carried out to former data., first input borehole data is selected and projected taking borehole data as a example.Choosing boring
When, two principles of uniformity of the comprehensive and borehole space distribution of drill hole information to be considered, the boring choosing is according to aperture
Coordinate and strata division attribute are projected.Then the section of input is selected and projected, noted the unified conversion of coordinate
Correct conversion with profile azimuth.
Then, built using the TIN FEM layer model (TIN FEM layer model) that described former data carries out former data.
Specifically, after pretreatment is carried out to former data, judge that using knowledge reasoning each section or boring are upper right
Should the point set of same stratal surface or construction face and lines collection, using point set and lines collection, each stratal surface is completed by space interpolation
Or the TIN model construction of construction face, the contact relation modified between each surface model is improved as necessary by interactive editor.Build
After the completion of TIN FEM layer model just inherit geological property on corresponding boring or section, complete the semantic expression of geology.
Finally, the TIN FEM layer model based on described former data builds described overall mixing volume elements model of geological structure body.
After the TIN FEM layer model building former data, can be in conjunction with Irregular hexahedron volume elements subdivision and model attributes
Instrument completes the overall structure mixing volume elements model of geological structure body.
Specifically, build the overall volume elements model of geological structure body that mixes and be divided into two parts：First, by Irregular hexahedron
Subdivision, the TIN FEM layer model using former data enters row constraint, and the space that FEM layer model is surrounded carries out Irregular hexahedron
Subdivision, build along various FEM layer models rise and fall mixing volume elements model of geological structure body.Second, completed whole using model attributes instrument
Body mixes the structure of volume elements model of geological structure body.I.e.：Using Krieger or apart from methods such as power inverse ratios, various attribute informations (are compared
As：Grade, pressure etc.) enter row interpolation, and each Irregular hexahedron volume elements is given corresponding property value, complete overall mixed
The structure of fit unit model of geological structure body.
If there being the needs of further local multi-scale Modeling, the volume elements in overall mixing volume elements model of geological structure body can be entered
Row local fine subdivision, realizes multi-scale Modeling.
If after there are new boring or the entrance of other data in local, only local mixing volume elements geologic body need to be built by above-mentioned steps
Model, specifically refer to explained below.
S2, is built identical with described overall mixing volume elements model of geological structure body using the local change data in described former data
The local mixing volume elements model of geological structure body of yardstick.
If local has new boring or other survey data to need to update overall mixing volume elements model of geological structure body, only need to press
Above-mentioned steps build the local mixing volume elements model of geological structure body with yardstick.Being left is exactly the fusion problem of new and old IHG-TIN model
?.Due to be the volume elements of same yardstick it is easy to find the new and old volume elements of correspondence position, replace update.
First introduce the building process of local mixing volume elements model of geological structure body below.
If have data to be updated in former data, obtain the local change data after updating.Taking borehole data as a example, if
Borehole data is changed, then obtain the borehole data after change.
First, pretreatment is carried out to local change data.
Carry out the TIN FEM layer model (FEM layer model of TIN) that data is changed in local using local change data
Build.
It is similar to the building process of the TIN FEM layer model of former data, in structure locally the TIN FEM layer model of change data
Wait, judge the point set of corresponding same stratal surface or construction face and lines collection in each section in local or boring using knowledge reasoning,
Using point set and lines collection, the TIN model construction of each stratal surface or construction face is completed by space interpolation, as necessary by friendship
Mutually edit to improve the contact relation modified between each surface model.After the completion of structure, TIN FEM layer model just inherits corresponding boring
Or the geological property on section, complete the semantic expression of geology.
Finally, described local mixing volume elements model of geological structure body is built based on the TIN FEM layer model of local change data.
After building the TIN FEM layer model of local change data, can be in conjunction with Irregular hexahedron volume elements subdivision and genus
Property modeling tool completes the structure of local mixing volume elements model of geological structure body.
Specifically, build local mixing volume elements model of geological structure body and be divided into two parts：First, by Irregular hexahedron
Subdivision, using local change data TIN FEM layer model enter row constraint, the space that local FEM layer model is surrounded is carried out not
The subdivision of regular hexahedron, builds the local mixing volume elements model of geological structure body rising and falling along various FEM layer models.Second, using attribute
Modeling tool completes the structure of local mixing volume elements model of geological structure body.I.e.：Using Krieger or apart from methods pair such as power inverse ratios
Various attribute informations are (such as：Grade, pressure etc.) enter row interpolation, and each Irregular hexahedron volume elements is given corresponding genus
Property value, completes the structure of local mixing volume elements model of geological structure body.
If there being the needs of further local multi-scale Modeling, the volume elements in local mixing volume elements model of geological structure body can be entered
Row local fine subdivision, realizes multi-scale Modeling.
S3, is replaced using the volume elements in described local mixing volume elements model of geological structure body and updates described overall mixing volume elements geology
The volume elements of relevant position in body Model, completes to mix the local updating of volume elements model of geological structure body.
Replace the volume elements of master mould same position using new volume elements local, extract new FEM layer model and complete FEM layer model
Topological relation and geological property renewal, thus realize quick local dynamic station updating etc..
In the updated, below step can also be carried out：Extract the FEM layer model after updating
Using update after mixing volume elements model of geological structure body, extract FEM layer model therein, complete geologic body stratal surface,
The synchronized update of construction face, topological relation and attribute information.
S4, the entirety after updating mixes the TIN TIN aspect extracted volume elements model of geological structure body after updating
Model, completes the topological relation of FEM layer model and the renewal of geological property.
With reference to specific embodiment, the invention will be further described, but does not limit the present invention.
Embodiment：
1. certain modeling region boring set (n) of input and cross-sectional data (m bar)；
2. boring and section are projected in three-dimensional scenic；
3. pass through strata division information, select n boring and the identical boring point of layer attribute and stratigraphic boundary line in m bar section
Bar, produces the FEM layer model on each stratum using triangulation and space interpolation；
4. pass through to construct distributed intelligence, select construction face dew point and construction line in n boring and m bar section, using triangle
Subdivision and constraint space interpolation produce each construction surface model；
5. build the TIN FEM layer model within geologic body；
6. by the subdivision of Irregular hexahedron, enter row constraint using TIN FEM layer model, the sky that FEM layer model is surrounded
Between carry out the subdivision of Irregular hexahedron, build the entirety mixing volume elements model of geological structure body rising and falling along various FEM layer models.
7. repeat 1-6 step and complete the local mixing volume elements model of geological structure body with yardstick for local data's update area；
8. relatively more overall mixing volume elements model of geological structure body and local mixture unit model of geological structure body；
9. the volume elements using local mixing volume elements model of geological structure body replaces the entirety mixing volume elements geologic body updating relevant position
Model, completes to mix the renewal of volume elements model of geological structure body；
10. the entirety mixing volume elements model of geological structure body after search updates, extracts the TIN FEM layer model after updating, realizes new
The synchronized update of FEM layer model is replaced.
In addition, the adaptability for enhancing this method and practicality, in 1-6 step, reserve artificial guided interaction interface, permissible
Increase part man-machine interactively, improve the precision of model.
Referring to Fig. 3, it is a kind of Organization Chart of mixing of present invention volume elements model of geological structure body local Rapid Updating, specifically such as
Under：
The data such as the original whole boring of step 1., section, attribute carry out data prediction.
Step 2. carries out overall TIN FEM layer model and builds.Build when, judged using knowledge reasoning each section or
In boring, the point set of corresponding same stratal surface or construction face and lines collection, are completed respectively by space interpolation using point set and lines collection
The TIN model construction of individual stratal surface or construction face, to improve the contact modified between each surface model as necessary by interactive editor
Relation.After the completion of structure, TIN FEM layer model just inherits the geological property on corresponding boring or section, completes the semantic table of geology
Reach.
Step 3. entirety IHG-TIN mixing volume elements builds, main fusion：Irregular hexahedron subdivision, model attributes.
Step 4. builds overall mixing volume elements model of geological structure body.
The data such as the new boring in step 5. local, section, attribute carry out data prediction.
Step 6. local T IN FEM layer model builds.When building, judge localized borehole using knowledge reasoning or cut open
On face, the point set of corresponding same stratal surface or construction face and lines collection, complete each using point set and lines collection by space interpolation
The TIN model construction of stratal surface or construction face, to improve the contact modified between each FEM layer model as necessary by interactive editor
Relation.After the completion of structure, local T IN FEM layer model just inherits the geological property on corresponding boring or section, completes geology semantic
Expression.
Step 7. local I HG-TIN mixing volume elements builds, main fusion：Irregular hexahedron subdivision, model attributes.
Step 8. builds local mixing volume elements model of geological structure body.
Step 9. updates the overall geologic body IHG-TIN model merging.Mainly local volume elements is replaced and is updated.
Geologic body aspect after step 10. renewal, construction face, topological relation and attribute.I.e.：Aspect, construction face, attribute carry
Take.
Compared with prior art, beneficial effects of the present invention are embodied in the following aspects：
1. due to taking first replacement renewal geologic body volume element model to update the FEM layer model reverse thinking in geologic body again, gram
Taken the topological relation of new surface model and attribute in conventional update method from face to body update difficult, it is to avoid surface model and body
Model shift reconstruction onto.
2. replace due to being updated with the volume element model of yardstick using geologic body, geometric operation that need not be complicated, renewal speed
Hurry up, improve the efficiency that geologic body local dynamic station updates.
3., due to employing mixing volume elements model of geological structure body IHG-TIN model, extract the sky of FEM layer model after updating
Between topological relation and geological property simply easy.
4., due to employing mixing volume elements model of geological structure body IHG-TIN model, this model energy Seamless integration- is taken into account and is opened up
Flutter relation, the FEM layer model of geology semanteme and the fine volume element model expressing fine attribute, multi-scale Modeling can be carried out further,
The various specialty analysis being subsequently respectively directed to volume elements and bin can be met.
In a word, after the present invention is first updated the thinking introducing that volume elements updates FEM layer model again, updated simply fast using volume elements
Prompt feature, efficiently solves a difficult problem for geologic body local dynamic station renewal, can be in various three-dimensional geological modeling systems, oil gas
Promote the use of in the softwares such as information system, mine enterprise information system, geologic survey system or disaster information system.
Although having been described for the preferred embodiment of the application, one of ordinary skilled in the art once knows substantially
Creative concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to wrap
Include preferred embodiment and fall into being had altered and changing of the application scope.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the application to the application
God and scope.So, if these modifications of the application and modification belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprise these changes and modification.
Claims (4)
1. a kind of mixing volume elements model of geological structure body local Rapid Updating is it is characterised in that methods described includes：
Build overall mixing volume elements model of geological structure body using former data, specifically include：Carry out former data using described former data
TIN TIN FEM layer model builds；TIN FEM layer model based on described former data builds described overall mixing volume elements ground
Plastid model；
Change data using the local in described former data to build and described overall mixing volume elements model of geological structure body same scale
Local mixing volume elements model of geological structure body, specifically includes：Change data using described local and carry out the TIN aspect that data is changed in local
Model construction；Build described local mixing volume elements model of geological structure body using the TIN FEM layer model that data is changed in described local；
Replaced using the volume elements in described local mixing volume elements model of geological structure body and update described overall mixing volume elements model of geological structure body
The volume elements of middle relevant position；
Entirety after updating mixes the TIN TIN FEM layer model extracting volume elements model of geological structure body after updating.
2. the method for claim 1 it is characterised in that
Before the described overall mixing volume elements model of geological structure body using former data structure, methods described also includes：
Pretreatment is carried out to described former data.
3. the method for claim 1 is it is characterised in that described mixed based on the described TIN FEM layer model described entirety of structure
Fit unit model of geological structure body, specifically includes：
Enter row constraint using the TIN FEM layer model that described former data builds, the space that FEM layer model is surrounded is carried out irregularly
Hexahedral subdivision, builds the mixing volume elements model of geological structure body rising and falling along various FEM layer models；
Using model attributes instrument, assignment is carried out to the described mixing volume elements model of geological structure body rising and falling along various FEM layer models, complete
The described overall structure mixing volume elements model of geological structure body.
4. the method for claim 1 it is characterised in that described using described local change data TIN FEM layer model
Build described local mixing volume elements model of geological structure body, specifically include：
Enter row constraint using the TIN FEM layer model that data structure is changed in described local, the space that local FEM layer model is surrounded
Carry out the subdivision of Irregular hexahedron, build the local mixing volume elements model of geological structure body rising and falling along various FEM layer models；
Using model attributes instrument, assignment is carried out to the described mixing volume elements model of geological structure body rising and falling along various FEM layer models, complete
The structure of described local mixing volume elements model of geological structure body.
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| CN109035398B (en) * | 2018-07-17 | 2022-05-31 | 成都爱为贝思科技有限公司 | Semantic description based fusion geological structure modeling method |
| CN109147045B (en) * | 2018-08-08 | 2022-08-30 | 中国电建集团华东勘测设计研究院有限公司 | Topological partition based three-dimensional automatic modeling method for geology of urban area |
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| CN111612903B (en) * | 2020-04-29 | 2023-03-21 | 中冶沈勘工程技术有限公司 | Geological data visualization method based on mixed data model |
| CN113239058B (en) * | 2021-05-27 | 2024-06-11 | 中国地质大学（武汉） | Knowledge graph reasoning-based three-dimensional geologic body model local dynamic updating method |
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