Sieving method used for complicated ground layer digital mapping

A technology of complex stratum and complex geology, applied in digital data processing, special data processing applications, maps/plans/diagrams, etc., can solve the problems of lack of unified and effective methods, inability to realize missing, inversion, pinch-out digital drawing, etc. achieve good results

Inactive Publication Date: 2008-10-08
SUN YAT SEN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the stratigraphic profiles of some complex geological conditions such as normal geological conditions and missing strata can be drawn by digital mapping methods, but there is still no unified and effective method for digital mapping of stratigraphic profiles under complex geological conditions, and it is impossible to realize all geological conditions such as deletion, inversion, pinch-out, etc. Cutaway view digital rendering of a situation

Method used

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  • Sieving method used for complicated ground layer digital mapping
  • Sieving method used for complicated ground layer digital mapping
  • Sieving method used for complicated ground layer digital mapping

Examples

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Embodiment 1

[0059] This example uses Figure 4 The two boreholes shown are connected and filled, the stratigraphic sequence of borehole LK1 is 13242, and the stratigraphic sequence of borehole LK2 is 12324. The process of using this screening method to connect lines to create districts is as follows:

[0060](1) The current layer A is LK1-1, B is LK2-1, the two are the same; go to step (6), the serial number of A+2 is 2 and A is different, so follow figure 2 (d) Connect to build area a, and update A to LK1-2, and B to LK2-2;

[0061] (2) A and B are different, go to step (5); the serial numbers of A and B+1 are both 3, so follow figure 2 (b) Connect to build area b, and update A to LK1-2, and B to LK2-3;

[0062] (3) A and B are the same, go to step (6); the serial number of A+2 is 4 and A is different, so follow figure 2 (d) connect to build area c, and update A to LK1-3, and B to LK2-4;

[0063] (4) A is the same as B, go to step (6); the serial number of A+2 is 2 and A is the s...

Embodiment 2

[0065] In this embodiment, the screening method of digital mapping of complex strata is applied to the development of the underground environmental information system (UEEIS) of the Eastern Reform Project and the development of the highway spatial geographic information visualization management system (HSIVS) of the Guangdong Meihe Expressway Project. The application process is as follows:

[0066] 1. Establish a drilling information database according to the drilling histogram provided by the engineering unit;

[0067] 2. According to the connection drilling specified by the user in the system, the corresponding drilling coordinate data and soil layer information are extracted from the drilling information database, and the stratum information of each drilling is preprocessed:

[0068] (1) Determine the borehole on the leftmost side of the profile as the initial borehole of the algorithm array, and sort the other boreholes according to the distance from the initial borehole f...

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Abstract

The invention provides a sieving method for complex strata digital mapping, comprising: (1) classifying complex strata, dividing the complex strata conditions into basic conditions in mapping method based on borehole stratum as the basis, such that all complex strata conditions are included in or derivative from the basic conditions; (2) preprocessing information for drawing sectional views of boreholes and the strata thereof; and (3) connecting the strata of the complex strata and constructing different stratum regions. The invention has the advantages that strata sectional views can be drawn automatically, quickly and efficiently; normal strata conditions, as well as loss, inverted, thin-out and other complex strata conditions can be realized well.

Description

technical field [0001] The invention belongs to the field of digital mapping for drawing stratum sections under complicated geological conditions by using computer programs, and in particular relates to a screening method applied to complex stratum digital mapping. technical background [0002] At present, the stratigraphic profiles of some complex geological conditions such as normal geological conditions and missing strata can be drawn by digital mapping methods, but there is still no unified and effective method for digital mapping of stratigraphic profiles under complex geological conditions, and it is impossible to realize all geological conditions such as deletion, inversion, pinch-out, etc. Case cutaway digital rendering. Contents of the invention [0003] The purpose of the present invention is to provide a digital mapping method for effectively drawing stratum sections under complex geological conditions, so as to make up for the deficiency of existing digital map...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G09B29/00
Inventor 周翠英
Owner SUN YAT SEN UNIV
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