CN109147045A - City section geology three-dimensional method for automatic modeling based on topological subregion - Google Patents
City section geology three-dimensional method for automatic modeling based on topological subregion Download PDFInfo
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Abstract
City section geology three-dimensional method for automatic modeling based on topological subregion, comprising: (1) survey data prepares；(2) city section topology subregion；(3) city block interface geologic section is drawn；(4) city block geology three-dimensional automatic modeling and dynamic update；(5) city section geology three-dimensional automatic modeling.City section is divided into several city blocks according to topological zoning ordinance first by the present invention, shared geologic section is drawn on adjacent block interface, then all city block geology three-dimensional automatic modelings are carried out using survey data and geologic section, finally by seamless spliced progress city section geology three-dimensional automatic modeling.On the one hand the precision of city section geology three-dimensional modeling and the efficiency of geologic three-dimensional model integrative reconstruction are improved；On the other hand city section three-dimensional geological model blockette building model inconsistence problems at block border are solved.
Description
Technical field
The present invention relates to urban geology fields, build automatically more particularly to the city section geology based on topological subregion is three-dimensional
Mould method.
Background technique
The three-dimensional digital of Urban Geological Work is the basic condition for realizing digital city, and urban three_dimensional geology modeling is
It realizes the digitized key technology of Urban Geological Work, while can be to solve the problems, such as that all kinds of complicated geologicals met in city mention
For important geological spatial data and digitlization means, at the same it is abundant, complete using providing for urban planning, construction and operation etc.
The geological information in face.
Currently, gratifying research achievement is achieved in urban three_dimensional geology modeling field both at home and abroad, based on different patterns
Modelling data source, three-dimensional geological modeling method are also different.The side of three-dimensional geological modeling is carried out according to different modelling data sources
Method includes a variety of: based on controlling based on borehole data, based on cross-section, with multi-source data.
(1) based on borehole data
Modeling method based on drilling is the current urban three_dimensional geology modeling method for developing comparative maturity.Researcher is to this
The research of modeling method is more, currently, such method processing stratiform Stratum Modeling it is very mature, processing lenticular body,
It is graduallyd mature in terms of the complex geologic bodies such as interlayer, tomography.But this method is commonly used in some specific industrial and civil architecture, geology
Three-dimensional modeling range is very limited, is not suitable for the large-scale geology automatic modeling in city section.City section models range one
As it is larger, need to model region division and modeled respectively at multiple city blocks, after the completion again by the geology of city block
Model is assembled into complete city section geological model.Often occur city block adjacent boundary during assembly relatively to have much difficulty in healing
The problem of sliding linking, this is often as city block non-strict control boundary, adjacent cities block during automatic modeling
Internal drilling data are inconsistent, and computer just automatically generates borderline bed boundary according to specific algorithm.This is easy for causing
After different city blocks completes modeling, borderline bed boundary often will appear the inconsistent problem of topological relation.Mesh
Before, this problem is especially prominent large-scale urban three_dimensional geology modeling field performance.
(2) based on cross-section
Modeling method based on profile data is to study more urban geology modeling method recently.Bend red rigid equal propositions
The utilizable data source of modeling is expanded based on the three-dimensional geological modeling method for intersecting folded profile, is realized fast based on profile data
Speed building three-dimensional geological model.Bright mirror etc. proposes the more volume modeling methods of three-dimensional geological based on netted topological cross-sections, will model
Region is divided into several grid divisions, and each subregion independently carries out model construction, and last assembled each partition model is that the whole district is whole
Model.Chen Guoliang etc. proposes that a kind of thinking by dividing space cell lattice constructs Geological Model using cross-section is intersected
Type.Chen Guoliang, Zhu Liangfeng etc. have done some good tries on guaranteeing crossing section data consistency.Lee likes that duty etc. will be three-dimensional
Topology inference introduces three-dimensional geological modeling, realizes the automatic structure of topological relation on three-dimensional space curved surface by section projecting method
It builds and reasoning, promotion geologic section compares dimension, improve geologic section and compare the degree of automation automatically, realize three in urban geology
Tie up stratified geological objects dynamic modeling.The exploration practices such as kingdom is bright are based on that " surface geology is investigated on section network foundation dimensionally
Matter modeling technique method " emphasizes that the data basis of modeling is cutd open from the system route section of earth's surface basic geological survey and actual measurement
Face, and then realize the numeral expression of three-dimensional geological structure.In short, being to utilize based on the modeling method based on cross-section
The formation information disclosed on adjacent section carries out bed boundary reconstruct, and side and bed boundary are then stitched into geologic body.
Research at present using section interleaving techniques building geological model is relatively more, achieves extraordinary application achievements.For city
The a wide range of three-dimensional geological modeling of section, crossing section can be used as the constraint in modeling region, in region and other data source collection
At the geological model precision constructed is higher.
(3) based on being controlled with multi-source data
The single three-dimensional geological model generated based on borehole data or cross-section, because the geological information of its expression has
Limit, while building three-dimensional geological model is efficiently rapidly completed, the geological model for also facing building has multi-solution.And it is complete
Know modeling region geological condition be it is unpractical, at this time using a variety of geologic datas collaboration building three-dimensional geological model just have
There is higher conviction degree.Guo Yanjun etc. is proposed based on the three dimensional contour line method to drill and intersection folded profile constrains, is attempted
The problems such as being solved using this method based on complicated geological phenomenon between drilling is unable to control in borehole data modeling method, improves mould
The precision of type.Hua Weihua has been inquired into based on multi-sources geologic datas such as drilling, geologic section, stratum isopleth, fault line and physical prospectings
Three-dimensional geological modeling method, propose that a kind of more geologic datas based on crossing section data constrain lower complicated geological structure mould
Type fast construction method and quantitative analysis method.Wang Wei, Xu Yaxing etc. are proposed a kind of coupled using multi-source data and constructed containing disconnected
The modeling method of layer geologic body.Wuqiang County etc. proposes a kind of multi-source geologic data integration technology, and various geologic datas are flat at one
It is integrated above platform.
Generally speaking with multi-source data control based on modeling method relative to borehole data be advocate peace with geologic section
More abundant and future city Geologic modeling the developing direction of the geological information of modeling method expression based on data.But
Current research achievement is few, and existing research achievement is limited to the diversity of data source, it is difficult to very completely from different angles
The form and property of degree description geologic body, the efficiency and quality of geological model building need.Especially above-mentioned three classes method is all infused
Important place matter work itself the characteristics of, deviate from urban geology threedimensional model civic survey, planning, construction, the operation during
Demand does not combine with traffic network axis, Land unit division, the update of survey data stage etc., does not also account for reaching
Have both problem to thousands of square kilometres of urban geology three-dimensional modeling precision and efficiency, there are biggish limitations for method.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, so that the building better quality, more efficient of city section geological model,
The present invention provides the city section geology three-dimensional method for automatic modeling based on topological subregion.
City section geology three-dimensional method for automatic modeling based on topological subregion, comprising steps of
S1: survey data prepares；City section geological mapping data is collected, the identifiable format data of computer is organized into；
The city section geological mapping data collection includes topographic map, borehole data table, test data table；Survey data arranges
Landform veil formats, stratum standardization, data format, rejects bad data；
S2: city section topology subregion；Using the staggered axis of communication of transverse and longitudinal in the section of city as partition boundaries, according to topology point
The space that city section manages is divided into several city blocks, each metropolitan district by area's rule and survey data sufficiency
Block may include one or more urban units plot；
S3: city block interface geologic section is drawn；Using the survey data near the block interface of city as foundation, in all cities
Geologic section is drawn on city's block interface, adjacent city block is made to share a geologic section, adjacent geologic section
Matter line is continuous, and geology line assigns geological property；
S4: city block geology three-dimensional automatic modeling and dynamic update；Based on survey data and geologic section, all city blocks
Geology three-dimensional automatic modeling obtains city block geologic three-dimensional model, when survey data changes in some city block
Corresponding geologic three-dimensional model dynamic updates；
S5: city section geology three-dimensional automatic modeling；All city block geologic three-dimensional model automatic splicings complete city section
Geology three-dimensional automatic modeling.
Preferably, in the step S1, the landform veil, which is formatted, to be referred to city section according to modeling accuracy requirement
Landform face carries out gridding, and mesh-density is uniformly excessive inside the section of city；The stratum standardization is according to borehole data
Establish total sequence on city section stratum；The data format is that borehole data and test data etc. are entered into database
In, the data of computer capacity identification are organized into, in case modeling uses；The bad data of rejecting is to reject the survey data collected
Middle bad data, the borehole data drilled as unfinished and drilling hole depth and the serious inconsistent data of periphery drilling, or bore
Hole point and the inconsistent data of stratigraphic controls point, reject these bad datas in survey data preparation process, to guarantee
The consistency of modelling data source, correctness and integrality.
Preferably, the step S2, city section topology subregion refer to, extract the staggered axis of communication of transverse and longitudinal intersection point and
Node on axis is as topological node, and topological node, which is sequentially connected, constitutes topology boundary, the polygon model that topology boundary divides
It encloses and constitutes city block；City block must meet following consistency condition on the topology: 1. all city blocks should not be only
The presence of adjacent cities block is stood on, palpus city block adjacent thereto has total frontier juncture system；2. the outer boundary of all city blocks should
It is self-enclosed.
Preferably, the step S3, city block interface geologic section are drawn, and the foundation of drafting is city block interface
Neighbouring survey data, the survey data discloses city block interface distribution of strata situation nearby, in conjunction with geological personnel
Geology experiences, along all city block interfaces draw geologic section, make adjacent city block share a geology cut open
Face, adjacent geologic section geology line is continuous, and geology line assigns geological property.
Preferably, the step S4, wherein city block geology three-dimensional automatic modeling, specifically: first in city block
All stratum are single in the borehole data in the geology line and the city block on geologic section drawn in interior extraction step S3
First individual-layer data includes at least drilling number, drilling section serial number, stratum code name；Then the old and new's order traversal on all stratum is pressed
The stratigraphic unit disclosed in all geology lines and drilling is found out, by the stratigraphic unit between the bottom of these stratigraphic units
Set is defined as unbroken layer, extract the bottom position data of unbroken layer, bottom stratum code name, starting drilling section serial number set,
Drilling section serial number set is terminated as complete layer data；Secondly it searches for not in geology line and the segmentation of borehole data unbroken layer in institute
Have the stratigraphic unit that discloses in drilling, then defining these stratigraphic units is incomplete layer, by geology line and the section that drills from upper and
Lower and stratum the old and new sequence, the bottom position data for successively extracting incomplete layer, stratum code name are as incomplete layer data；Finally
Complete bed boundary is generated according to complete layer data, ground body is sequentially sheared using complete bed boundary, generates complete layer entity；Foundation
Incomplete layer data interpolation generates incomplete bed boundary, and it is complete sequentially to shear this using the incomplete bed boundary in complete layer entity
Layer entity generates incomplete layer entity；Complete layer entity and incomplete layer entity is combined to obtain city block geology three-dimensional mould
Type；City block geologic three-dimensional model dynamic, which updates, to be referred to, is traversed search according to the geometric coordinate of the borehole data of update first
City block belonging to it is integrated existing borehole data in city block belonging to the borehole data of update and its, joint
It is three-dimensional automatic to complete the city block geology for having borehole data to update for geology line on the block geologic section of city with geological property
Modeling.
Preferably, the step S5 makes block geologic three-dimensional model successively split in multiple cities obtained in step S4
The geological surface on side pieces together a geological surface altogether, and coplanar geobody is made to piece together a geobody, keeps split
The geological property of geological surface and geobody afterwards is constant, obtains complete city section geologic three-dimensional model.
The beneficial effects of the present invention are: when the present invention can solve survey data update in post city's geological work, city
Block geological model reconstructs the problem of bringing unreasonable reconstruct to entire city section geological model, to improve city section geology
The reasonability and modeling efficiency of model reconstruction.The present invention is used as constraint using city block interface geologic section, so that city piece
The update of area's geological model is only limitted to the city block of survey data update, does not produce to the city block that no survey data updates
Raw to influence and rebuild because of the update of adjacent cities block survey data, this is to city section magnanimity three-dimensional geological model
It updates efficiency and brings great promotion.The city section three-dimensional geological modeling side that the present invention is controlled using multi-source mass data
Method uses borehole data and cross-section etc. as the geologic data of city section three-dimensional modeling, it is contemplated that urban geology three
Demand of dimension module during civic survey, planning, construction, O&M is divided based on traffic network axis, Land unit to city
City section carries out topological subregion, at the same consider that survey data stage updates and to city section three-dimensional geological model whole updating
Bring influences.Precision and efficiency are taken into account on constructing a wide range of City-level geologic three-dimensional model, so that city section geology
The geological information of threedimensional model expression is more abundant, and stronger reference is provided to future city geological work.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Fig. 2 is city section topology subregion schematic diagram of the invention.
Fig. 3 is that city block interface geologic section of the invention draws figure.
Fig. 4 is city block landform body Model figure of the invention.
Fig. 5 is city block unbroken layer surface chart of the invention.
Fig. 6 is block incomplete bed boundary figure in city of the invention.
Fig. 7 is city block three-dimensional geological model figure of the invention.
Fig. 8 is all city block three-dimensional geological model figures of the invention.
Fig. 9 is model merging schematic diagram of the invention.
Figure 10 is city section three-dimensional geological model expanding in layered manner schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described.The present embodiment is with certain city section three-dimensional geological
For modeling, which is arc area, arc length about 8km, width about 2km, area about 16km2, complex geologic conditions, friendship
Axis net transverse and longitudinal is interlocked, and is divided using the product MicroStation of Bentley company as city block, city block geology
The three-dimensional manipulating platform of threedimensional model building, all borehole datas are stored in SQL Server database, all cities
It is drawn on MicroStation platform on the geologic section of block interface with geological property geology line.
The present embodiment flow diagram according to the invention, as shown in Figure 1, the city section geology three based on topological subregion
Tie up method for automatic modeling, comprising:
S1: survey data prepares.City section geological mapping data is collected, the identifiable format data of computer is organized into.
It includes topographic map, borehole data table, test data table that data collection is reconnoitred in city section.It includes landform veil that survey data, which arranges,
It formats, stratum standardization, data format, reject bad data.Landform veil, which is formatted, to refer to being incited somebody to action according to modeling accuracy requirement
City section landform face carries out gridding, and mesh-density is uniformly excessive inside the section of city.Stratum standardization is according to drilling
Data establish total sequence on city section stratum, i.e., city section is all discloses the total stratum age the old and new's sequence in stratum.Data
Formatting is that borehole data and test data etc. are entered into database, is organized into the data of computer capacity identification, in case building
Mould uses.Rejecting bad data is to reject bad data in the survey data collected, the borehole data and brill drilled as unfinished
Hole hole depth and periphery drilling serious inconsistent data or boring point and the inconsistent data of stratigraphic controls point, in prospecting number
These bad datas are rejected according in preparation process, to guarantee the consistency of modelling data source, correctness and integrality.
S2: city section topology subregion.Using the staggered axis of communication of transverse and longitudinal inside proposed city section as partition boundaries,
According to topological zoning ordinance and survey data sufficiency, the space that city section manages is divided into several city blocks,
Each city block may include one or more urban units plot.City section topology subregion schematic diagram is as shown in Figure 2.City
The purpose of city section topology subregion is that the modelling data source of city section magnanimity is divided into multiple regions, and piecemeal handles magnanimity number
According to raising modeling efficiency.City section can be divided into several city blocks, each city block may include one or
Multiple urban units plot.The process of city section topology subregion are as follows: extract the intersection point and axis of the staggered axis of communication of transverse and longitudinal
On node as topological node, topological node, which is sequentially connected, constitutes topology boundary, the polygon range structure that topology boundary divides
At city block.City block must satisfy following consistency condition on the topology: 1. all city blocks should not be independent
Exist in adjacent cities block, palpus city block adjacent thereto has total frontier juncture system；2. the outer boundary of all city blocks should be
It is self-enclosed.City block after the topology subregion of city section may include one or more unit plot in the section of city.
S3: city block interface geologic section is drawn.Using the survey data near the block interface of city as foundation, use
The vertical auxiliary section tool of platform carries out cutting along the partition boundaries line of city block, makes adjacent city block shared one
A geologic section, adjacent geologic section geology line is continuous, and stratigraphic unit attribute lines are then carried out on two dimension view interface
Edit and record, confirmation back to three-dimensional, realize three dimensional topology geologic section drafting (as shown in Figure 3).Here lines are edited and recorded
Geological property be stratigraphic unit, the lower limits as superstratum unit.The foundation of drafting is that city block interface is attached
Close survey data, the survey data disclose city block interface distribution of strata situation nearby.In conjunction with the ground of geological personnel
Matter experience draws geologic section along all city block interfaces, adjacent city block is made to share a geologic section, adjacent
The geologic section geology line connect is continuous, and geology line assigns geological property, and the geological property of imparting is to arrange in step S1
Standardize formation information.
S4: city block geology three-dimensional automatic modeling and dynamic update.Based on survey data and topological structure geologic section,
All city block geology three-dimensional automatic modelings are completed, the creation of block landform body Model in city wherein included is to utilize
The included tool set of Microstation platform realizes the creation of initially body, as shown in Figure 4.
Complete layer data wherein included is by the bottom position data of unbroken layer, bottom stratum code name, starting drilling
Section serial number set, the continuous geology line for terminating drilling section serial number set, possessing identical geological property on topological structure geologic section
Composition.The bottom position data of unbroken layer are the terminals of the bottommost drilling section of each drilling in the unbroken layer segmentation of stratigraphic unit
Coordinate；What bottom stratum code name was recorded is the stratum code name on bottom stratum in the unbroken layer segmentation of stratigraphic unit；Starting
Drilling section serial number set is the serial number of the top drilling section of each drilling in the unbroken layer segmentation of stratigraphic unit；Terminate drilling section
Serial number set is the serial number of the bottommost drilling section of each drilling in the unbroken layer segmentation of stratigraphic unit；Topological structure geologic section
The upper continuous geology line with identical geological property is bottom ground in being segmented on the geologic section of city block interface with unbroken layer
The identical geology line of stratum code name of layer.The data structure is incomplete to the unbroken layer segmentation progress of stratigraphic unit for convenience
Layer data is extracted.
Incomplete layer data wherein included, which is extracted, to be traversed to the unbroken layer segmentation of stratigraphic unit, from stratigraphic unit
Unbroken layer segmentation in each drilling starting drilling section and topological structure geologic section on start, find out ordinal number of stratum minimum
Drilling section, search for it is all drilling neutralize topological structure geologic sections on the ordinal number of stratum it is the smallest drilling section stratum code names
Identical drilling section, by partially attributively matter line, part drill currently with identical geology on the geologic section of city block interface
The terminal point coordinate and stratum code name for the section that drills are defined as incomplete layer data.
Survey data is all borehole formation data directly read from database, and topological structure geologic section is with biography
The geologic section with geological property that system mode is drawn on all city block interfaces, the geological property is the same as in database
Formation data is consistent.When extracting complete layer data and incomplete layer data, first according to the borehole formation in each city block
Data and topological structure geologic section establish the total sequence in stratum, that is, the total stratum age in all exposure stratum is new in the block of city
Old sequence.Geology line in borehole formation data and topological structure geologic section with geological property is all in the block of city
Stratigraphic unit boundary data at the stratigraphic unit boundary data and city block adjacent boundary of drilling, one borehole is by several
The drilling section composition being arranged in order, wherein drilling section is by drilling section serial number, starting point coordinate, terminal point coordinate, stratum code name, stratum
Serial number, stratum color (R, G, B) description.And one borehole is by drilling number, Present Borehole section ordinal number of stratum, accumulative virtual thickness
Degree, drilling section set description.For one borehole, Present Borehole section ordinal number of stratum is currently traversed for recording the drilling
Drilling section ordinal number of stratum；Add up virtual thickness for calculating the virtual position for disclosing point, when lacking a certain stratum in drilling,
Virtual thickness takes the average value of the drilling section thickness currently traversed, needs in the case where the consecutive miss of stratum accumulative virtual thick
Degree；Drilling section set be made of multiple drilling sections, it is each drill section include beginning and end coordinate, exposure stratum code name and its
Unique ordinal number of stratum, there are also the color attributes to distinguish Different Strata lithology.
Based on survey data and topological structure geologic section, all city block geology three-dimensional automatic modelings are completed, wherein
It is extracted comprising complete layer data, is to the geology for possessing geological property on all borehole formation data and topological structure geologic section
Line is traversed, and since first drilling section that first drills, is counted and is first appeared in all drillings and first drilling
The number of the identical drilling section of the stratum code name of Present Borehole section, if the number is identical as drilling number, and city block border
Geology line on upper topology structure geologic section with identical geological property continuously occurs, then it is assumed that there are complete layer datas.
Based on survey data and topological structure geologic section, all city block geology three-dimensional automatic modelings are completed, wherein
Stratigraphic unit data are created by comprising bed boundary, using Kriging interpolation algorithm, fitting generates more smooth geology
Curved surface, including complete bed boundary and incomplete bed boundary.Complete bed boundary refers to all drillings and topological geologic section institute
The interface on certain stratum is disclosed, it is based on unbroken layer data creation.Incomplete bed boundary refers to all drillings and topology ground
The strata interface that matter section partially discloses introduces virtual exposure point for the drilling of lacuna, to incomplete layer data
It is supplemented.The virtual top for disclosing point and being scheduled on borehole formation missing point, and being higher by distance is to add up virtual thickness, it can be right
The spatial shape of incomplete bed boundary uses restraint, and makes position reasonable pinching of the incomplete layer entity in stratum between drilling.
By the stratigraphic unit data extracted above, using Kriging interpolation algorithm, it is bent that fitting generates more smooth geology
Face, including complete bed boundary and incomplete bed boundary, as shown in Figure 5 and Figure 6.Complete bed boundary refers to all drillings and topology
Geologic section discloses the interface on certain stratum, it is based on according to unbroken layer data creation.Incomplete bed boundary refers to
The strata interface that all drillings and topological geologic section partially disclose introduces virtual disclose for the drilling of lacuna
Point supplements incomplete layer data.
City block geology three-dimensional automatic modeling is the complete bed boundary and incomplete bed boundary by creation, to primitively
Body carries out complete layer entity cutting and incomplete layer entity cutting respectively, and assigns geology and face to the ground layer entity after cutting
Color attribute is finally completed the automatic modeling of stratigraphic model.The complete layer entity of cutting is using established complete bed boundary to original
Beginning ground body carries out cutting, and the ground body after shearing is divided into one or more complete layer entities；Incomplete layer entity cutting is benefit
Incomplete bed boundary in complete layer entity is further sheared by complete layer entity.Finally all ground layer entity is assigned
Stratum and color attribute are given, that is, completes the geologic three-dimensional model based on borehole data and topological geologic section in the block of city oneself
Dynamic building, as shown in Figure 7.The method for auto constructing for being used in the geologic three-dimensional model of borehole data and topological geologic section is completed
The geologic three-dimensional model of other city blocks constructs, as shown in Figure 8.If there is borehole data updates, according to the hole number of update
According to geometric coordinate traversal search its belonging to city block, will the borehole data of update and its belonging to city block in have
Borehole data integration, the geology line with geological property on the block geologic section of combined city, using above-mentioned city block geology
Three-dimensional method for automatic modeling completes the city block geology three-dimensional automatic modeling for having borehole data to update.
S5: city section geology three-dimensional automatic modeling.All city block geologic three-dimensional model successively splits that will be obtained,
So that the geological surface on total side is pieced together a geological surface, coplanar geobody is made to piece together a geobody, keeps spelling
The geological property of geological surface and geobody after conjunction is constant, obtains complete city section geologic three-dimensional model (such as Fig. 9 institute
Show), Figure 10 is the effect picture that layering displaying is carried out to the stratigraphic model in Fig. 9.
If wanting to understand the stratum cutting under a certain exploration line, can to the city section geologic three-dimensional model of above-mentioned generation into
The vertical cut section of row exploration line generates two-dimentional log sheet, can clearly, intuitively help user to quickly understand underground feelings
Condition.The linking at the block border of city is checked, to verify the tool in the suitable of processing blockette modeling bed boundary seamless connection
The property used.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (6)
1. the city section geology three-dimensional method for automatic modeling based on topological subregion, which is characterized in that comprising steps of
S1: survey data prepares；City section geological mapping data is collected, the identifiable format data of computer is organized into；
The city section geological mapping data collection includes topographic map, borehole data table, test data table；Survey data arranges
Landform veil formats, stratum standardization, data format, rejects bad data；
S2: city section topology subregion；Using the staggered axis of communication of transverse and longitudinal in the section of city as partition boundaries, according to topology point
The space that city section manages is divided into several city blocks, each metropolitan district by area's rule and survey data sufficiency
Block may include one or more urban units plot；
S3: city block interface geologic section is drawn；Using the survey data near the block interface of city as foundation, in all cities
Geologic section is drawn on city's block interface, adjacent city block is made to share a geologic section, adjacent geologic section
Matter line is continuous, and geology line assigns geological property；
S4: city block geology three-dimensional automatic modeling and dynamic update；Based on survey data and geologic section, all city blocks
Geology three-dimensional automatic modeling obtains city block geologic three-dimensional model, when survey data changes in some city block
Corresponding geologic three-dimensional model dynamic updates；
S5: city section geology three-dimensional automatic modeling；All city block geologic three-dimensional model automatic splicings complete city section
Geology three-dimensional automatic modeling.
2. the city section geology three-dimensional method for automatic modeling based on topological subregion as described in claim 1, which is characterized in that
In the step S1, the landform veil, which is formatted, refers to that city section landform face is carried out grid according to modeling accuracy requirement
Change, mesh-density is uniformly excessive inside the section of city；The stratum standardization is city section is established according to borehole data
Total sequence of layer；The data format is that borehole data and test data etc. are entered into database, is organized into computer
The data that can be identified, in case modeling uses；The bad data of rejecting is to reject bad data in the survey data collected, such as not
Complete the borehole data drilled and drilling hole depth and periphery drilling serious inconsistent data or boring point and stratigraphic controls point
Inconsistent data reject these bad datas in survey data preparation process, to guarantee the consistent of modelling data source
Property, correctness and integrality.
3. the city section geology three-dimensional method for automatic modeling based on topological subregion as described in claim 1, which is characterized in that
The step S2, city section topology subregion refer to, extract the intersection point of the staggered axis of communication of transverse and longitudinal and the node on axis is made
For topological node, topological node, which is sequentially connected, constitutes topology boundary, and the polygon range that topology boundary divides constitutes city block；
City block must meet following consistency condition on the topology: 1. all city blocks should not be independently of adjacent cities block
In the presence of palpus city block adjacent thereto has total frontier juncture system；2. the outer boundary of all city blocks should be self-enclosed.
4. the city section geology three-dimensional method for automatic modeling based on topological subregion as described in claim 1, which is characterized in that
The step S3, city block interface geologic section are drawn, and the foundation of drafting is the survey data near the block interface of city,
The survey data discloses city block interface distribution of strata situation nearby, in conjunction with the geology experiences of geological personnel, along
All city block interfaces draw geologic section, so that adjacent city block is shared a geologic section, adjacent geology is cutd open
Face geology line is continuous, and geology line assigns geological property.
5. the city section geology three-dimensional method for automatic modeling based on topological subregion as described in claim 1, which is characterized in that
The step S4, wherein city block geology three-dimensional automatic modeling, specifically: it is drawn in extraction step S3 in the block of city first
All stratigraphic unit individual-layer datas, are at least wrapped in the borehole data in geology line and the city block on the geologic section of system
Include drilling number, drilling section serial number, stratum code name；Then it finds out by the old and new's order traversal on all stratum in all geology lines
With the stratigraphic unit disclosed in drilling, the stratigraphic unit set between the bottom of these stratigraphic units is defined as unbroken layer,
It extracts the bottom position data of unbroken layer, bottom stratum code name, starting drilling section serial number set, terminate drilling section serial number set
As complete layer data；Secondly the ground not disclosed in all drillings is searched in geology line and the segmentation of borehole data unbroken layer
Layer unit, then defining these stratigraphic units is incomplete layer, is sorted from top to bottom with stratum the old and new by geology line and drilling section, according to
The secondary bottom position data for extracting incomplete layer, stratum code name are as incomplete layer data；Finally generated according to complete layer data
Complete bed boundary is sequentially sheared ground body using complete bed boundary, generates complete layer entity；It is raw according to incomplete layer data interpolation
At incomplete bed boundary, the complete layer entity is sequentially sheared using the incomplete bed boundary in complete layer entity, is generated incomplete
Layer entity；Complete layer entity and incomplete layer entity is combined to obtain city block geologic three-dimensional model；City block geology three
Dimension module dynamic update refers to, first according to the geometric coordinate of the borehole data of update traversal search its belonging to city block,
Existing borehole data in city block belonging to the borehole data of update and its is integrated, on the block geologic section of combined city
Geology line with geological property completes the city block geology three-dimensional automatic modeling for having borehole data to update.
6. the city section geology three-dimensional method for automatic modeling based on topological subregion as described in claim 1, which is characterized in that
Block geologic three-dimensional model successively split in multiple cities obtained in step S4 is made the geological surface on total side by the step S5
Piece together a geological surface, coplanar geobody made to piece together a geobody, geological surface after keeping split and
The geological property of geobody is constant, obtains complete city section geologic three-dimensional model.
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