CN102651143A - Automatically generating method of pinchout geological body three-dimensional complex profile - Google Patents
Automatically generating method of pinchout geological body three-dimensional complex profile Download PDFInfo
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Abstract
The invention provides an automatically generating method of pinchout geological body three-dimensional complex profile, which performs virtual supplementation to missed stratigraphic data in drilling holes by starting from processing the data of the drilling holes and according to the space distribution of the data of the drilling holes. The method comprises the following steps of extracting the data of the drilling holes in the same layer according to a one-to-one corresponding rule of the stratum of the drilling holes, and combining the data into a profile line of the stratum; performing triangulation based on the upper and lower stratum points of the stratum formed by adjacent two drilling holes according to the extracted profile line of the stratum, thereby realizing three-dimensional visual expression for the stratigraphic section. According to the method provided by the invention, the automatic drawing problem of complex three-dimensional section is solved; the workload for hand drawing geological profile can be greatly reduced; the method is based on the stratum information of the drilling hole to identify the pinchout situation, so that the efficiency for space analysis and decision making can be improved; molding of complex geological body three-dimensional section can be adapted, and the method can be widely promoted and used in the three-dimensional geo-science modeling.
Description
Technical field
The present invention relates to learn the modeling field three-dimensionally, relate in particular to the complicated section of a kind of pinching geologic body and generate method automatically based on borehole data.
Background technology
The development of Along with computer technology and Spatial Information Technology; GIS-Geographic Information System (Geographic Information System; GIS) technology is obtaining general application aspect the areal geology condition three-dimensional visualization; As with the geologic database being the GIS software on basis, can generate the log sheet etc. of borehole columnar section, stratum composite columnar section, ore bed comparison diagram and any direction with interactive means.These functions can provide space aid decision making support for the geological work personnel.
In recent years, some scholars have inquired into and have adopted distinct methods to realize the drafting of borehole sections figure
[1 ~ 3]Is example like Men Guizhen etc. with the coal seam; Adopt Excel or other program meanses; Several kinds of method for drafting of log sheet have been studied; Good treatment the drafting of coal seam tomography in the section map handle and the ground layer line between coordination problem, but do not relate to for the disposal route of complex geologic body in the geologic section (phacoid, pinching etc.)
[1]Scholars such as a warm left side have forever inquired into the generation method of hydrogeologic section and have considered special section situation with the Basic programming language; But collection, analysis and arrangement to the borehole data data also need a large amount of manual operationss; And the algorithm that texture is filled is also comprehensive inadequately and optimization; This method relatively is short of on artificial intelligence, and dirigibility and practicality are not enough
[2]
Di Weimin, Wang Dezhu, scholars such as Tang Xinjun adopt programming language to combine borehole data storehouse and cad technique, have studied the automatic generation method of log sheet, and this method is based on the CAD platform, and scarce capacity on three-dimensional expression can not be realized the drafting of three-dimensional section view
[3 ~ 5]Lu Juan is that the hydrogeologic section that the basis has been inquired into based on Component Type GIS Technology combination knowledge rule generates method automatically with the hydrogeology, but its field that relates to is confined to hydrogeologic section
[6]The spatial domain searching algorithm of application space semantic relations such as Tian Tian combines expertise to realize the connection drafting of section with interactive means, and its method man-machine interactively is many, and is intelligent with the drafting degree is not high automatically
[7]Wang Jimin etc. have inquired into the geologic section modeling based on borehole data; And introducing Method of Knowledge Reasoning; Incorporated expertise and the experience that can supply make a strategic decision, but the software systems of its exploitation are just handled the section that boring projects to the plane, the physical location and the distribution of boring are beyond expression
[8]
To sum up, to the automatic generation research of three-dimensional geological section, pay close attention to the method for drafting of plane section more, and on three-dimensional expression and automaticity, be short of to some extent at present.This just needs the automatic drafting method of a kind of three-dimensional section of invention, thereby improves the ability to express directly perceived and the operating efficiency of geologic section, serves aid decision making better.
Pertinent literature:
[1] Men Guizhen, Sa Xianchun, thunder Po Lam. the computer drawing technology of log sheet. coal field geology and exploration, 01 phase of nineteen ninety-five, 34-37.
[2] temperature is left forever, Sun Yongtang, Chen Hongyan etc. and microcomputer is drawn the research of hydrogeologic section method. Jilin water conservancy, o. 11th in 1996,34-37.
[3] Wang Dezhu. engineering geological profile Development of Software and application. engineering geology computer utility, 2000.2,6-9.
[4] Di Weimin. the Computer Aided Drawing of log sheet and planimetric map. gold science and technology, 2002 the 10th the 4th phases of volume, 36-39.
[5] Tang Xinjun, tight peace. utilize VB6.0 and AutoCAD treatment project figure. computer utility, 2002 01 phases, 104-106.
[6] Lu Juan. based on the hydrogeologic section generation method automatically research of assembly type GIS. Nanjing Normal University, 2003.
[7] Tian Tian, Pan is diligent, Chen Lei, Cong Weiqing, Zhao Guiqing, Sun Zhidong opens virtue. based on the automatic join algorithm of the geologic section of Semantics of Space. geographical and geography information science, in November, 2008, the 24th the 6th phase of volume, 54-56.
[8] Wang Jimin, Lv Qing, Wan Dingsheng. based on the geologic section modeling of borehole data. Hohai University's journal (natural science edition), in July, 2009, the 37th the 4th phase of volume, 463-466.
Summary of the invention
The technical matters that the present invention will solve; Be to start with,, can carry out virtual replenishing hidden layer data in the boring according to the space distribution of existing borehole data from borehole data is handled; Provide a kind of pinching geologic body 3 D complex section to generate method automatically; The boring geologic data that can effectively solve common geologic prospecting collection can not satisfy the problem of profile drawing, judges the pinching situation based on the formation information of boring, realizes that three-dimensional section draws problem automatically.
The technical scheme that adopts is:
A kind of pinching geologic body 3 D complex section generates method automatically, is that a kind of pinching geologic body complex three-dimensional section based on borehole data generates method automatically, and idiographic flow is following:
(1) to the processing of borehole data.Judge promptly whether boring planimetric position coordinate meets reality and virtual additional processing is carried out on the stratum of disappearance in the boring.
(2) extraction of stratum outline polygon.According to stratum in the boring one by one the rule of correspondence will extract with the borehole data point of one deck, and be combined into the stratum outline line.Described stratum comprises various complicated geological situation (like phacoid, pinching).
(3) stratum outline polygon subdivision.According to the stratum outline line that extracts, carry out triangulation with the point of stratum up and down that constitutes the stratum between adjacent two borings, thereby the three-dimensional visualization of realizing stratigraphic section is expressed.
This method modeling may further comprise the steps:
(1), data pre-service.Comprise the verification of borehole data and correction automatically, through the logic determines of drilling orifice coordinate, whether the inspection raw data is correct, and lost strata is carried out virtual replenishing.
(2), stratigraphic section modeling.Judge complex situations such as stratigraphic pitch-out, and carry out the automatic processing on adjacent boring stratum.
(3), extract each boundary line, stratum according to the judged result in the step (2); The point of stratum up and down to constitute the stratum between adjacent two borings carries out triangulation; Form two triangles that constitute section; Handle all stratum outline lines with this, at last with these section three-dimensional visualizations that constitutes by triangle.
The pinching situation and the phacoid situation of geologic body discerned and handled to this method can automatically based on borehole data, and the same formation data of holing with difference constitutes complicated section and carries out subdivision, thereby the three-dimensional visualization of realizing geologic section is expressed.Solve the automatic drafting problem of complex three-dimensional section, improved the stratum spatial analysis and the efficiency of decision-making.This method adopts 3DGIS in the application that the complicated geological section generates automatically, has enriched spatial analysis theory and the method for 3DGIS, can be extensively promotes the use of learning in the modeling three-dimensionally.
Description of drawings
Fig. 1 is a borehole data processing flow chart of the present invention;
Fig. 2 is for the present invention is based on borehole data complex geologic body profile drawing process flow diagram.
Fig. 3 pinching geologic body complex three-dimensional sectional view.
Fig. 4 stratum geologic body boundary profile extracts the principles illustrated auxiliary view.
Fig. 5 is the three-dimensional model diagram of embodiment one engineering.
Fig. 6 is the constitutional diagram that more than one complicated sections of embodiment are drawn automatically.
Fig. 7 is the constitutional diagram of more than one complicated sections of embodiment and boring.
Fig. 8 is the three-dimensional model diagram of embodiment two engineerings.
Fig. 9 is the complex three-dimensional sectional view of the wall scroll exploratory line of embodiment two.
Figure 10 is the constitutional diagram that more than two complicated sections of embodiment are drawn automatically.
Figure 11 is the constitutional diagram of more than two complicated sections of embodiment and boring.
Embodiment
For clear statement the object of the invention, technical scheme and advantage,, and, the present invention is elaborated with reference to accompanying drawing below in conjunction with the practical implementation case.
Concrete realization flow is following:
(1) to the processing of borehole data.Judge promptly whether boring planimetric position coordinate meets reality and virtual additional processing is carried out on the stratum of disappearance in the boring.
(2) extraction of stratum outline polygon.According to stratum in the boring one by one the rule of correspondence will extract with the borehole data point of one deck, and be combined into the stratum outline line.Here the stratum that refers to comprises various complicated geological situation (like phacoid, pinching).
(3) stratum outline polygon subdivision.According to the stratum outline line that extracts, carry out triangulation with the point of stratum up and down that constitutes the stratum between adjacent two borings, thereby the three-dimensional visualization of realizing stratigraphic section is expressed.
Section stratum outline line extracts principle
Fig. 1, Fig. 2 are the flow chart of data processing figure and the profile drawing process flow diagram of this method.
The concrete modeling procedure of this method comprises:
1, data pre-service.Comprise the verification of borehole data and correction automatically, through the logic determines of drilling orifice coordinate, whether the inspection raw data is correct, and lost strata is carried out virtual replenishing.Detailed process is following: the formation data that at first from database, reads drilling orifice three-dimensional coordinate data and boring.Because there is scope in the zone of an engineering, so whether meet logic and reality according to the magnitude range of the coordinate difference between the drilling orifice planimetric coordinates, can judge whether the drilling orifice coordinate exists mistake.As, whether the boring coordinate Y value of an engineering differs can think then more than hundred kilometers that data are wrong and point out the user to continue to handle.Secondly, from the formation data of boring, obtain the maximum stratum numbering on stratum and the number on stratum.Again the formation data of each boring is checked; If wherein certain one deck lost strata then adds the virtual data of this layer in the boring formation data; Its virtual formation data is that the degree of depth on numbering stratum on the stratum of stratum numbering disappearance is the depth of stratum on stratum, upper strata, and zone thickness is 0.At last, be met the data of profile drawing requirement.
2, stratigraphic section modeling.Judge complex situations such as stratigraphic pitch-out, and carry out the automatic processing on adjacent boring stratum, its treatment scheme such as Fig. 2.Detailed process is following: from all boring formation datas, obtain the number on stratum, and then in layer extract the outline line on stratum respectively.From beginning down successively to handle near the stratum on the face of land.When handling each layer stratum; The boring of forming section is handled one by one; If it is not 0 that this drill hole is worked as the thickness on the stratum of pre-treatment, the data on the current stratum of then will holing (the upper surface point on stratum and lower surface point coordinate) record in the variable of storing the stratum outline line and carry out next boring and handle.If working as the thickness on this stratum of pre-treatment in the formation data of this boring is 0, current stratum then is described in this drill hole disappearance, promptly the stratum does not exist in this drill hole pinching or stratum.Its concrete condition will be judged according to the data on the current stratum of adjacent boring, is that zone thickness is not 0 if there is current stratum in an adjacent boring, and then this is holed and is the pinching point on stratum.If the current zone thickness of adjacent boring all is 0, the current stratum of disappearance that then should hole.Equally formation data is deposited in the outline line variable of stratum if this is holed to stratigraphic pitch-out point, otherwise the current formation data that will hole abandons.After handling one deck stratum, handle next stratum with this and dispose until all stratum.
3, extract each boundary line, stratum according to the judged result in the step 2; The point of stratum up and down to constitute the stratum between adjacent two borings carries out triangulation; Form two triangles that constitute section; Handle all stratum outline lines with this, at last with these section three-dimensional visualizations that constitutes by triangle.
Embodiment 1:
With certain city's geologic prospecting engineering is example.This zone is a building ground in urban district, and its landform is more smooth, and ground elevation is between 47.46 ~ 50.30 meters, and geomorphic type is high overbank in river and paleo-streams.68 of the total borings of this project, results of drilling show, constitute the stratum, place and roughly are followed successively by from top to bottom: miscellaneous fill, silty clay, silt, muck soil, silty clay, medium sand and circle gravel.
At first, raw data is carried out handling by respective rule, its flow process is as shown in Figure 1.
Then, in based on software geologic structure that the present invention developed and ground surface environment integrated three-dimensional model system, carry out the automatic generation and the drafting of complicated geological section.Like Fig. 5 is the three-dimensional model diagram of this practical example, and Fig. 6 is the constitutional diagram that a plurality of complicated sections are drawn automatically, and Fig. 7 is the constitutional diagram of a plurality of complicated sections and boring.
Embodiment 2:
Certain city's geologic prospecting engineering is an example, and this zone is building ground, urban district, and the engineering site topography is more smooth, and ground elevation is between 49.23-52.71 rice, and geomorphic unit belongs to the fluvial outwash terrace.127 of the total exploratory spots of this project, drilling depth 10-30 rice.Engineering drilling is the result show, the stratum in exploration place is roughly from top to bottom: the miscellaneous fill of artificial accumulation horizon of the Holocene epoch in the Quaternary period, the Holocene epoch in the Quaternary period are towards silty clay, fine sand, medium sand, gravelly sand and the circle gravel on pluvial phase stratum.
The drafting processing mode of the pinching complex three-dimensional section of this instance is consistent with top instance with flow process.Like Fig. 8 is the three-dimensional model whole structure figure of this practical example, and Fig. 9 is the complex three-dimensional section of the wall scroll exploratory line of this instance, and Figure 10 is the constitutional diagram that a plurality of complicated sections of this instance are drawn automatically, and Figure 11 is the constitutional diagram of a plurality of complicated sections and boring.
Claims (2)
1. a pinching geologic body 3 D complex section generates method automatically, it is characterized in that a kind of pinching geologic body complex three-dimensional section based on borehole data generates method automatically, and this method flow is following:
(1), judges promptly whether boring planimetric position coordinate meets reality and virtual additional processing is carried out on the stratum of disappearance in the boring to the processing of borehole data;
(2) extraction of stratum outline polygon, according to stratum in the boring one by one the rule of correspondence will extract with the borehole data point of one deck, and be combined into the stratum outline line;
(3) stratum outline polygon subdivision according to the stratum outline line that extracts, carry out triangulation with the point of stratum up and down that constitutes the stratum between adjacent two borings, thereby the three-dimensional visualization of realizing stratigraphic section is expressed.
2. a kind of pinching geologic body 3 D complex section according to claim 1 generates method automatically, it is characterized in that modeling may further comprise the steps:
(1), the data pre-service, the verification that comprises borehole data with revise automatically, through the logic determines of drilling orifice coordinate, whether the inspection raw data correct, and lost strata is carried out virtual replenishing;
(2), the stratigraphic section modeling, judge complex situations such as stratigraphic pitch-out, and carry out the automatic processing on adjacent boring stratum;
(3), extract each boundary line, stratum according to the judged result in the step (2); The point of stratum up and down to constitute the stratum between adjacent two borings carries out triangulation; Form two triangles that constitute section; Handle all stratum outline lines with this, at last with these section three-dimensional visualizations that constitutes by triangle.
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| CN103279986A (en) * | 2013-06-17 | 2013-09-04 | 陈超东 | Three-dimensional horizontal geological section map manufacturing method and applications thereof |
| CN104299269A (en) * | 2014-09-30 | 2015-01-21 | 长江岩土工程总公司（武汉） | Geological section output method of three-dimensional geological model |
| CN105184862A (en) * | 2014-06-18 | 2015-12-23 | 天津市星际空间地理信息工程有限公司 | Three-dimensional stratum model dynamic construction method |
| CN105225272A (en) * | 2015-09-01 | 2016-01-06 | 成都理工大学 | A kind of tri-dimensional entity modelling method based on the reconstruct of many outline lines triangulation network |
| CN105243208A (en) * | 2015-09-30 | 2016-01-13 | 贵州正业工程技术投资有限公司 | Spherical crown-shaped rock-soil excavation section information expressing method |
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| CN108986213A (en) * | 2018-07-02 | 2018-12-11 | 南京师范大学 | A kind of three dimensional contour line method based on stacking technology |
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| CN111986325A (en) * | 2020-08-25 | 2020-11-24 | 东北大学 | Implicit sectioning method for three-dimensional geologic body model |
| CN111986325B (en) * | 2020-08-25 | 2023-07-18 | 东北大学 | Implicit sectioning method for three-dimensional geologic body model |
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| CN113593030B (en) * | 2021-08-13 | 2024-04-19 | 长春工程学院 | Geological profile generation method, system, terminal and medium based on three-dimensional model |
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| CN115131461B (en) * | 2022-07-07 | 2023-03-21 | 中交水运规划设计院有限公司 | Geological profile generation method and device and electronic equipment |
| CN116778096A (en) * | 2023-06-02 | 2023-09-19 | 中国公路工程咨询集团有限公司 | Three-dimensional geologic body modeling method based on BIM three-dimensional cloud data |
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