CN106997615A - The multi-source data modeling method of GOCAD surface models - Google Patents
The multi-source data modeling method of GOCAD surface models Download PDFInfo
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- CN106997615A CN106997615A CN201710248890.1A CN201710248890A CN106997615A CN 106997615 A CN106997615 A CN 106997615A CN 201710248890 A CN201710248890 A CN 201710248890A CN 106997615 A CN106997615 A CN 106997615A
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- 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
- G06T17/05—Geographic models
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- 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
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
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Abstract
The present invention relates to engineering geology three dimensional design field, a kind of multi-source data modeling method of GOCAD surface models is disclosed, when exploratory spot is sparse, zonal constraint can be carried out to the surface model of geological object and adjusted.Including step：Mark point data in geologic data is based in GOCAD and builds initial surface model；The supplemental characteristic imported into GOCAD in geologic data；Some parameter value builds the attribute contour surface for meeting the parameter value as attribute interpolation using in the supplemental characteristic；Row constraint is entered to the geological interface in initial surface model in the form of attribute contour surface is B constraint, local interpolation computing is carried out to the geological interface of constraint, the part of the geological interface is set to be approached to attribute contour surface, to meet the curved-surface shape in the region, wherein, the face scope of attribute contour surface is less than the face scope of the geological interface of its constraint.The present invention is suitable for the sparse surface model of exploratory spot.
Description
Technical field
The present invention relates to the technical field of engineering geology three-dimensional modeling, the multi-source data of more particularly to GOCAD surface models is built
Mould method.
Background technology
GOCAD (Geological Objiect Computer Aided Design) is world-class at present half
Intelligent Modeling software, it is multiple that the software is mainly used in petroleum works, mineral exploration and exploitation, geophysical exploration and hydraulic engineering etc.
Field.Software uses the discrete smooth interpolation method (DIS) that professor J.L.Mallet proposes, additionally uses triangulation and four sides
Body partitioning techniques.
Use spatial interpolation algorithm DSI (Discrete Smooth Interpolation).The algorithm is similar to Xie Weiji
The finite element method of point equation, with it is a series of with spatial entities geometry and physical features, the space coordinate point being connected with each other come
Simulate geologic body, it is known that the spatial information and attribute information of node are converted into linear restriction, be incorporated into the full mistake of model production
Journey, DSI interpolation is applied to the simulation of natural forms.
The constraint on GOCAD opposites has two types, and one kind is to make to face as being forced through the obligatory point (i.e. A constraints), one
It is by face of as close (i.e. B constraints) to obligatory point to plant.
Geological object has can not directly opinion property, imparametrization, unstructured and Heterogenization feature.Limited by exploration level
System, the collection to geologic data is much not enough for the complete three-dimensional surface model that builds.
Built in GOCAD after surface model based on single factor test, it is necessary to using exploring identification point, two dimensional cross-section line, thickness etc. pair
Surface model carries out overall or local constraint adjustment, is finally configured to reach the surface model of geological design personnel requirement.Work as geology
Interface face is complicated, and it is less to explore identification point, to explore identification point for constraint, is not enough to the variation tendency of expression geological interface.
It with two dimensional cross-section line is auxiliary that general solution, which is, and interpolation arithmetic is carried out to geological interface.Or with the thickness relationship in face, face
The modes such as the attribute of object are constraint, and interpolation arithmetic is carried out to geological interface.But the adjustment of above method opposite model area
Efficiency is low, and process is complicated, and geologic data has polynary complexity, to sound wave, and CT etc. is conducive to the attribute number that geological interface is built
According to underusing.
The content of the invention
The technical problem to be solved in the present invention is：A kind of multi-source data modeling method of GOCAD surface models is provided, works as exploration
When point is sparse, zonal constraint can be carried out to the surface model of geological object and adjusted.
To solve the above problems, the technical solution adopted by the present invention is：The multi-source data modeling method of GOCAD surface models,
Including step：
A. initial surface model is built based on the mark point data in geologic data in GOCAD；
B. the supplemental characteristic imported into GOCAD in geologic data；
C. using the parameter value in the supplemental characteristic as attribute interpolation, the attribute contour surface for meeting the parameter value is built；
D. row constraint is entered to the geological interface in initial surface model in the form of attribute contour surface is B constraint, to constraint
Geological interface carries out local interpolation computing, the part of the geological interface is approached to attribute contour surface, to meet the song in the region
Face form, wherein, the face scope of attribute contour surface is less than the face scope of the geological interface of its constraint.
Further, the supplemental characteristic includes RQD data, Vp data, CT data, one kind in sonic data or many
Kind.
Further, step C multiple parameter values using in supplemental characteristic construct parameters value pair as attribute interpolation, respectively
The attribute contour surface answered.
The beneficial effects of the invention are as follows：The present invention takes full advantage of CT between adit RQD, Vp, hole, drilling RQD, sound wave etc. with
The data of the features such as the sign Rock And Soil integrality that statistics, means of testing are obtained, are constrained building initial surface model, effectively
The three-dimensional geological surface model that solves limited by exploration level, geologic data is to building the problem of surface model is much not enough.
Embodiment
Before the present invention is specifically described, following noun is illustrated first.
Attribute contour surface：After carrying out interpolation calculation in space using attribute data, the contour surface face of some property value is met
Model.Attribute data：Between the data for being different from Geologic Indicators point obtained by experiment, measurement etc., such as adit RQD, Vp, hole
CT, drill RQD, sound wave etc. are to count, the data of the feature such as sign Rock And Soil integrality that means of testing is obtained.RQD is to pass through
Measure adit hole wall or core, obtained statistics.Vp refers to the data obtained to adit or drilling by sonic test；CT
Refer to a kind of physical prospecting means to the test adit or drilling, obtained state properties.
Except the mark point data based on locus of geological phenomenon in current geologic data, also substantial amounts of RQD, Vp,
Other attribute datas such as CT, such as seismic CT are chromatographed, and are that seismic wave is more using a hair (between drilling) between opposing parallel footrill
The fan-shaped observation data of receipts.Data inherently 2-D data, it is not enough that these data compensate for exploration identification point, is between adit
Geological analysis provides strong data and supported.To utilize these data, these attribute datas are imported into GOCAD by the present invention
In, a contour surface surface model (attribute contour surface) is constructed in the method for attribute data space interpolation, the surface model builds fast
Speed, attribute data can be used for multiple times.The face scope should be less than the scope of the geological interface to be changed, with attribute contour surface to geology
Interface is entered after row constraint, and row interpolation is entered to geology boundary.It is the supposition face after a geological analysis, attribute etc. because of attribute contour surface
Row constraint is entered in value face as B constraints to geological interface, as long as the interpolation arithmetic of geological interface meets the area close to attribute contour surface
The curved-surface shape in domain, reaches geological design personnel requirement.
Embodiment
Embodiment provides a kind of multi-source data modeling method of GOCAD surface models, comprises the following steps that：
A. initial surface model is built based on the mark point data in geologic data in GOCAD.
B. into GOCAD import geologic data in supplemental characteristic, wherein the supplemental characteristic can include RQD data,
One or more in Vp data, CT data, sonic data.
C. using the parameter value in the supplemental characteristic as attribute interpolation, the contour surface surface model for meeting the parameter value is built,
That is attribute contour surface.Specifically we can build one or more attribute contour surface as needed, if only needing to structure one
Individual attribute contour surface enters row constraint to geological interface, then some parameter value, as attribute interpolation, builds to meet and is somebody's turn to do using in supplemental characteristic
The contour surface surface model of parameter value；If desired multiple attribute contour surfaces are built and enter row constraint to geological interface, then need to be with parameter number
It is attribute interpolation according to middle multiple parameter values, the corresponding attribute contour surface of parameters value is constructed respectively.
D. to the ground in initial surface model in the form of one or more attribute contour surface that step C is built is constrained as B
Row constraint is entered at matter interface, and local interpolation computing is carried out to the geological interface of constraint, makes the local equivalent to attribute of the geological interface
Face is approached, to meet the curved-surface shape in the region, wherein, the face scope of attribute contour surface is less than the face of the geological interface of its constraint
Scope, reaches geological design personnel requirement.
The general principle and main feature of the present invention is the foregoing described, the description of specification simply illustrates the original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (3)
- The multi-source data modeling method of 1.GOCAD surface models, it is characterised in that including step：A. initial surface model is built based on the mark point data in geologic data in GOCAD；B. the supplemental characteristic imported into GOCAD in geologic data；C. using the parameter value in the supplemental characteristic as attribute interpolation, the attribute contour surface for meeting the parameter value is built；D. row constraint is entered to the geological interface in initial surface model in the form of attribute contour surface is B constraint, to the geology of constraint Interface carries out local interpolation computing, the part of the geological interface is approached to attribute contour surface, to meet the curved in the region State, wherein, the face scope of attribute contour surface is less than the face scope of the geological interface of its constraint.
- 2. the multi-source data modeling method of GOCAD surface models as claimed in claim 1, it is characterised in that the supplemental characteristic Including the one or more in RQD data, Vp data, CT data, sonic data.
- 3. the multi-source data modeling method of GOCAD surface models as claimed in claim 2, it is characterised in that step C is with parameter number It is attribute interpolation according to middle multiple parameter values, the corresponding attribute contour surface of parameters value is constructed respectively.
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Cited By (2)
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| CN107507179A (en) * | 2017-08-31 | 2017-12-22 | 中国电建集团成都勘测设计研究院有限公司 | Rock And Soil quantitative analysis method based on GOCAD |
| CN107808413A (en) * | 2017-10-30 | 2018-03-16 | 中国煤炭地质总局水文地质局 | A kind of three-dimensional geological modeling method based on GOCAD |
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