A method and system for drawing geological folds based on microelement theory

Abstract

The present invention discloses a method and system for drawing geological folds based on microelement theory, the method comprising dividing the geological folds into a plurality of curved areas and a plurality of parallel areas; generalizing the parameters of the plurality of curved areas and the plurality of parallel areas; dividing each of the curved areas into a plurality of face areas along the section; filling each face area of ​​each curved area based on the parameters; overlapping the filled face areas of each curved area to obtain each curved area geological fold; filling each parallel area based on the parameters to obtain each parallel area geological fold; and coupling adjacent curved area geological folds and parallel area geological folds to obtain the entire geological fold. The present invention not only has higher drawing efficiency, but also the drawing results are more in line with the actual geological conditions, and can solve the drawing problems of multiple complex folds such as compound folds and multi-layer folds, which greatly facilitates the actual work of geological engineers.

Description

Technical Field

[0001] The invention belongs to the technical field of geological mapping, and in particular relates to a geological fold mapping method and system based on microelement theory. Background Art

[0002] The existing method of drawing engineering geological folds generally requires geological engineers to close the fold filling area, manually draw trend lines, and then divide the fold drawing area according to the trend lines to generate geological folds.

[0003] This method can solve the problem of drawing simple folds, improve drawing efficiency, and facilitate the fold drawing work of geological engineers. However, the problems of this method are also significant. First, the shape of the fold trend line has a great influence on the fold drawing results. However, in the actual work process, geological engineers do not determine the specific shape of the trend line. The effective input parameters given to the fold are generally the dip angle of the starting point of the fold and the dip angle of the end point. This leads to the need for geological engineers to draw fold trend lines based on experience, and then generate geological folds through the above method. The effect of fold drawing depends entirely on the experience of the geological engineer himself; second, the manifestation of geological folds is diverse. In addition to the simplest monocline, anticline, and syncline, there are also fold drawing problems such as compound folds, double-layer folds, and multi-layer folds.

[0004] Different types of folds have different control parameters and require different types of methods to draw. However, traditional methods fail to effectively identify the control parameters of different areas in geological folds, fail to effectively partition the data structure of geological folds, and fail to provide geological engineers with a way to edit the results of the drawing. This results in traditional methods only being able to solve the problem of drawing simple folds, but not complex folds. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a geological fold drawing method and system based on microelement theory, which effectively partitions the data structure of geological folds, realizes automatic drawing of each partition graphics and rapid overlap of different partition data, solves the problem of drawing complex folds, and realizes parametric analysis of geological folds, automatic fitting of trend lines and rapid drawing of complex folds, thereby improving work efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for drawing geological folds based on microelement theory, comprising:

[0008] Based on the formation attitude, the geological fold is divided into a plurality of bending zones and a plurality of parallel zones, wherein the bending zones are zones where the attitude changes, and the parallel zones are zones where the attitude remains unchanged;

[0009] generalizing parameters of the plurality of curved regions and the plurality of parallel regions;

[0010] Each of the curved regions is divided into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area;

[0011] Filling each face region of each curved area based on the parameters;

[0012] Overlapping the filled surface areas of each bending zone to obtain geological folds in each bending zone;

[0013] Based on the parameters, each of the parallel regions is filled to obtain geological folds in each parallel region;

[0014] And the adjacent geological folds in the bending zone and the geological folds in the parallel zone are coupled to obtain the entire geological fold.

[0015] Furthermore, it also includes obtaining the length correction coefficient of each bending zone ,in, ;

[0016] in, For the The length correction factor of the bending zone is For the The length of the upper boundary of the bending zone, It is 250-350.

[0017] Furthermore, each of the curved areas is divided into Areas, including:

[0018] Based on the The starting fill angle of the bending area , End fill angle and length correction factor , calculate the :

[0019] ;

[0020] ,and ;

[0021] in, For the The number of baseline divisions for a curved zone.

[0022] Further, filling each area of ​​each curved area based on the parameters includes:

[0023] Based on the The starting fill angle of the bending area , End fill angle , calculate the Filling reference points of the curved area Direction coordinates ;

[0024] And based on the starting fill angle , End fill angle and fill reference points Direction coordinates , fill each face area of ​​each curved area.

[0025] Furthermore, it also includes using the zeroing method to calculate the filling reference point Direction coordinates , the zeroing method includes:

[0026] When the starting fill angle The terminating fill angle When the signs are different, the fill reference point Direction coordinates The calculation formula is:

[0027] ;

[0028] in, Indicates The left edge of the curved area Direction coordinate value, For the right border Direction coordinate value;

[0029] When the starting fill angle The terminating fill angle If the same number ,but Equal to the left edge Direction coordinate value; if ,but Equal to the right border Direction coordinate value.

[0030] Further, the starting filling angle , End fill angle and fill reference points Direction coordinates , filling each area of ​​each curved area, including:

[0031] Based on the starting fill angle and the ending fill angle , determine the Angle correction factor for each bending zone;

[0032] Based on the starting fill angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each face region in the curved area;

[0033] and the coordinates of the filling reference points in the X direction of each curved area and a filling angle for each face region, and fills each face region of each curved area.

[0034] Further, the starting filling angle and the ending fill angle , determine the Angle correction factors for each bending zone include:

[0035] When the starting fill angle The terminating fill angle When the same number, The angle correction factor for each bending zone is:

[0036] ;

[0037] in, Indicates Angle correction factor for each bending zone.

[0038] Further, the starting filling angle and the ending fill angle , determine the The angle correction factor for each bending zone also includes:

[0039] When the starting fill angle The terminating fill angle When the signs are different, the first The bending area is divided into left and right sides. The left correction factor for the angle of the first bending zone and the The right correction coefficients for the angles of the bending zones are:

[0040] ;

[0041] ;

[0042] in, Indicates The left correction factor for the angle of the bending zone is Indicates The right side correction factor for the angle of the bending zone.

[0043] Further, the starting filling angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each region in the curved area includes:

[0044] Calculate the Unit increment angle of the bending zone for:

[0045] ;

[0046] When the starting fill angle End fill angle When the same number, the The bending zone Filling angle of a small area The calculation method is:

[0047] ;

[0048] When the starting fill angle End fill angle When the signs are different, the The bending zone Filling angle of a small area The calculation method is:

[0049] ;in, To calculate the auxiliary angle;

[0050] .

[0051] Furthermore, the coupling of the adjacent geological folds in the bending area and the geological folds in the parallel area to obtain the entire geological fold includes:

[0052] Based on Correction factor for bending zone Or the left correction factor , adjust the drawing scale of the parallel area on the left so that the interval between the trend lines of the parallel area on the left is equal to the first The interval between the trend lines at the beginning of the first bending zone is to achieve the left parallel zone and the first Coupling overlap of bending zones;

[0053] Based on Correction factor for bending zone Or the right correction factor , adjust the drawing scale of the parallel area on the right side so that the interval between the trend lines of the parallel area on the right side is equal to the first The interval between the trend lines at the end of the first bending zone is to achieve the right parallel zone and the first Coupling overlap of bending zones;

[0054] and in Adjust the filling reference point of the bending area The filling ratio of the bending area is such that The interval between the trend lines of the first curved area is equal to the interval between the trend lines of the right parallel area, so as to achieve the The bending zone is coupled and overlapped with the right parallel zone.

[0055] In addition, the present application also provides a geological fold drawing system based on microelement theory, including:

[0056] A division module, for dividing the geological fold into a plurality of bending zones and a plurality of parallel zones based on the formation occurrence, wherein the bending zone is a zone where the occurrence changes, and the parallel zone is a zone where the occurrence remains unchanged;

[0057] A parameter generalization module, used for generalizing the parameters of the plurality of curved areas and the plurality of parallel areas;

[0058] A segmentation module is used to segment each of the curved areas into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area;

[0059] A first filling module, used for filling each area of ​​each curved area based on the parameters;

[0060] An overlap module, used for overlapping the filled surface areas of each bending zone to obtain geological folds in each bending zone;

[0061] A second filling module is used to fill each of the parallel zones based on the parameters to obtain geological folds in each parallel zone;

[0062] And a coupling module is used for coupling the adjacent geological folds in the bending zone and the geological folds in the parallel zone to obtain the entire geological fold.

[0063] In the present invention, starting from the microelement concept, effective data segmentation and parameter generalization of any geological folds are achieved, and a method of graphically drawing corresponding parameters is established for different types of data. For the data coupling problem in different regions, an effective data overlap method is proposed, thereby solving the problem of rapid generation of any geological folds. Compared with traditional methods, the data analysis method of the present invention realizes the parameterization and standardization of fold data, avoids data deviation caused by human experience, and is more in line with the actual geological situation and the development needs of digital technology; the fold drawing method provided by the present invention not only has higher drawing efficiency, but also the drawing results are more in line with the actual geological situation, and can solve the drawing problems of complex folds such as composite folds and multi-layer folds, which greatly facilitates the actual work of geological engineers. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. In the drawings:

[0065] Figure 1 Draw a flow chart for the geological folds of the present invention;

[0066] Figure 2 is a flow chart of the method of the present invention;

[0067] Figure 3 A simple syncline fold of the present invention;

[0068] Figure 4 A syncline fold composed of multiple bending zones of the present invention;

[0069] Figure 5 A flow chart for drawing a bending zone of the present invention;

[0070] Figure 6-9 The results of drawing the fold bending area for different segmentation times of the present invention are shown;

[0071] Figure 10-13 The results of drawing the wrinkle bending area at different reference points of the present invention;

[0072] Figure 14-17 The results of the wrinkle bending area plotting for different correction coefficients of the present invention are as follows;

[0073] Fig.18 A schematic diagram of a composite fold without overlapping of the present invention;

[0074] Fig.19 A schematic diagram of a composite fold having completed overlapping according to the present invention;

[0075] Fig. 20 It is a schematic diagram of the structure of the system of the present invention. DETAILED DESCRIPTION

[0076] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms and the like is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device, element, module, system, platform or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The following description of the present invention is only understood as a description of individual embodiments of the technical solution of the present invention. Other embodiments are not reflected in the following description, but it does not mean that the present invention excludes these other embodiments, and the technical solution of the present invention is not limited to the specific implementation methods described below, and the protection scope of the present invention is not limited to only the specific implementation methods described below. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention.

[0078] It should be noted that if the terms "first", "second", etc. appear in the specification and claims of the present invention and the above-mentioned drawings, the description is only used to distinguish similar objects, and is not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0079] In order to realize the standardization and precision of geological fold drawing process and solve the problem of rapid drawing of complex folds, so as to improve the work efficiency of geological engineers, the present invention adopts the following method: Figure 1 The outlined method realizes geological fold rendering based on microelement theory, and a specific exemplary description is as follows.

[0080] In some embodiments, Figure 1 and 2 As shown, a method for drawing geological folds based on microelement theory includes:

[0081] S1: Based on the occurrence of the formation and the speed of the occurrence change trend, the geological fold is divided into a plurality of bending areas and a plurality of parallel areas, wherein the bending area is an area where the occurrence changes, and the parallel area is an area where the occurrence remains unchanged;

[0082] Specifically, in the traditional geological fold drawing method, the fold area is generally divided horizontally as a whole through the fold trend line. However, this method is based on the fold trend line and simplifies the entire geological fold into a complete data entity along the parallel section direction. However, it does not effectively identify the specific geological conditions inside the geological fold. It is only an approximate identification method. The trend line used to identify the fold area is also drawn by geological engineers based on their own experience, and it is impossible to achieve parameterization and precision of the fold drawing process. In actual engineering, there may be multiple different types of data partitions inside a stratigraphic fold. The specific data status of these partitions is generally determined by the change state of the rock formation. Usually, through this change characteristic, the geological body inside the fold can be identified as a curved zone with a changing state of occurrence and a parallel zone in an unchanged state along the vertical section direction; the curved zones can be distinguished by the change trend of occurrence, the starting filling angle and the ending filling angle; the parallel zones can be divided by the location of the parallel zone and the size of the occurrence of the parallel zone. According to the above method, we can set the universal standard data form of geological folds to realize the universal data division method for all geological folds. For details, see the attached Figure 3 , Attachment Figure 4 .

[0083] Attached Figure 3 A simple syncline fold is shown, which consists of a parallel zone with a filling angle of -30°, a wrinkle zone with a filling angle of -30° turning to 30°, and a parallel zone with a filling angle of 30°, where -30° means that the rock layer dips 30° from left to right, and 30° means that the rock layer dips 30° from left to right.

[0084] Attached Figure 4 A syncline fold consisting of three bending zones is shown, the first bending zone filling angle is -60° to -10°, the second bending zone filling angle is -10° to 10°, and the third bending zone filling angle is 10° to 60°.

[0085] S2: Determine available parameters of the plurality of curved areas and the plurality of parallel areas;

[0086] Specifically, the available parameters for drawing folds in each area are established. Generally speaking, the available parameters in the bending zone are the rock formation attitude at the starting bend, the rock formation attitude at the ending bend, the rock formation type, the upper boundary and the lower boundary of the rock formation; the available parameters in the parallel zone are the rock formation attitude, rock formation type, the upper boundary and the lower boundary of the rock formation in the parallel zone.

[0087] S3: Divide each of the curved areas along the section plane into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area;

[0088] Specifically, by differentiating the upper and lower boundaries of the curved area into a sufficient number of equal small line segments, the small line segments of the upper and lower boundaries are overlapped in sequence to form a fold filling area, and then the filling angle, reference point position, and angle correction coefficient of each area are calculated, the automatic filling of folds in the curved area can be achieved. In the above process, the geological engineer only needs to input the filling angle of the fold starting point, the filling angle of the end point, the rock layer type and the upper and lower boundaries of the rock layer to complete the automatic filling of the curved area pattern. After the above results are generated, the geological engineer can still change the shape of the fold by modifying the filling origin, filling ratio, filling type, etc.

[0089] S4: filling each area of ​​each curved area based on the parameters;

[0090] Specifically, the automatic drawing of folds in curved areas is the core issue in the entire fold drawing process.

[0091] In the era of manual drawing, geological engineers generally solved this problem by manually drawing fold trend curves; in the computer age, this process changed from manual drawing to drawing with mapping software; some technicians who understand computer programming summarized the drawing experience of geological engineers and developed an automatic drawing method for fold bending areas based on trend lines, which is the traditional fold drawing method mentioned above. In the drawing process of the traditional method, geological technicians are required to provide fold trend curves, but geological technicians generally cannot directly obtain this data (generally they can only obtain the occurrence of the sudden change of the rock interface). They can only draw an empirical curve to provide data for the computer. The empirical nature of the original data leads to the differences and randomness of the drawing results, making it difficult to achieve the standardization of the bending area fitting process, which is also the main problem of the traditional drawing method.

[0092] In order to solve this problem, the present invention needs to generalize the drawing parameters of the curved area into the attitude parameters obtained by geological engineers. In fact, the reason why the rock layer interface line is transformed from a straight line to a curve is that the rock layer attitude in this area has gradually changed. Therefore, we only need to divide the upper and lower boundaries of the stratum into enough rock layer boundaries along the section direction, connect each pair of upper and lower boundary lines into small areas, determine that the filling angle of each small area is constant, calculate the filling angle and filling origin of each small area, and then draw a graphic for each area. Finally, overlap all the filling results, and the automatic drawing process of the curved area folds can be realized. The implementation logic of this process is shown in the attached Figure 5 .

[0093] S5: Overlapping the filled surface areas of each bending zone to obtain geological folds in each bending zone; Figure 5 shown.

[0094] S6: filling each of the parallel zones based on the parameters to obtain geological folds in each parallel zone;

[0095] Specifically, the method for drawing the parallel area of ​​the fold can be to draw a closed curve of the target filling area, fill it with the pattern filling function provided in the CAD, and then modify the filling pattern. Of course, other methods can also be used to draw the parallel area, such as the method for drawing the curved area in the present invention.

[0096] S7: Couple the adjacent geological folds in the bending zone and the geological folds in the parallel zone to obtain the entire geological fold.

[0097] Specifically, the overlap of different areas is a relatively complex problem. Since the actual shape of the pattern filling is affected by many factors such as the filling angle, filling ratio, filling type, filling reference point, etc., it is difficult to automatically calculate it by computer (even if it is possible, it will consume a lot of manpower and computing resources, which is not economical). Relatively speaking, it is more reasonable to have geological engineers manually adjust it.

[0098] In the process of drawing geological folds, the filling angles and filling types of different areas are actually determined, so geological engineers only need to manually adjust the filling reference points and filling ratios to achieve the overlap of folds in different areas.

[0099] In some embodiments, the method further comprises obtaining a length correction coefficient of each bending zone. ,in, ;

[0100] in, For the The length correction factor of the bending zone is For the The length of the upper boundary of the bending zone, The drawing unit is 250-350. The drawing unit is 1 basic data unit of CAD and changes with the drawing scale.

[0101] Specifically, the face domain set formed after the boundary line segment is differentiated has different internal filling start angles and end angles, and there is a certain error in the approximation using a constant filling angle. By performing countless differentiations on the curved area, a curved filling pattern that is infinitely close to the actual situation can naturally be obtained, but it will cause great computational pressure on the calculation. If the number of differentiations on the curved area is too small, the fractures between the differential face domains will be obvious, which is difficult to meet the needs of generating geological results.

[0102] Attached Figure 6-9 The drawing results of the wrinkle bending area under different segmentation times are shown. The starting filling angle of the bending is -30°, the ending filling angle is 30°, and the benchmark segmentation times are 10 times, 100 times, 1000 times, and 1000 times. Second-rate.

[0103] The reference segmentation times are not the final segmentation times in the program calculation process. In the actual drawing process, the length of the fold bending area is uncertain. In order to ensure the fitting effect, the reference length needs to be corrected according to the boundary length of the bending area. (Upper boundary length / 300+1).

[0104] By the attached Figure 6-9 The generated results show that when the value of the benchmark segmentation times is 10 times and 100 times, there are obvious breaks between the filling patterns, which cannot be used as the final result of fold drawing. The benchmark number of 1000 times can well fit the changing trend of the bending zone, but the calculation amount of the drawing process is large and the memory consumption is high.

[0105] In some embodiments, each of the curved regions is divided into Areas, including:

[0106] Based on the The starting fill angle of the bending area , End fill angle and length correction factor , calculate the :

[0107] ;

[0108] ,and ;

[0109] in, For the The number of baseline divisions for a curved zone.

[0110] Specifically, Figure 6-9 As shown, when the benchmark number is When the method is used to determine the number of reference divisions, it is necessary to set a minimum number of reference divisions to avoid the problem of poor fitting effect when the difference between the starting angle and the ending angle is small. In the present invention, the minimum number of reference divisions is 200.

[0111] In some embodiments, filling each area of ​​each curved region based on the parameters includes:

[0112] Based on the parameters, calculate the starting filling angle of each bending area , End fill angle and fill reference points Direction coordinates ;

[0113] and a starting fill angle based on the bending area , End fill angle , calculate the Filling reference points of the curved area Direction coordinates ;

[0114] And based on the starting fill angle , End fill angle , determine the Angle correction factor for each bending zone;

[0115] And based on the starting fill angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each face region in the curved area;

[0116] and the coordinates of the filling reference points in the X direction of each curved area and a filling angle for each face region, and fills each face region of each curved area.

[0117] Specifically, the reference point of the pattern filling is the initial positioning point used by the CAD software to control the filling shape. When the filling pattern is a horizontal rock layer, the position of the filling reference point does not affect the shape of the pattern itself, but only affects the offset of the filling pattern. However, in this application, the shape of the curved area fold is fitted by combining multiple groups of filling patterns for product calculation, which also causes the pattern filling shape to be affected by the filling reference point.

[0118] Figure 10-13 The drawing results of the wrinkle bending area under different reference points are shown. The starting fill angle of the bend is -30°, and the ending fill angle is 30°. The bending area fitting methods using different reference points, upper left boundary reference point, upper right boundary reference point, and reference point with a fill angle of 0° (in this case, the center of the fill pattern) are used.

[0119] By the attached Figure 10-13 It can be seen that when each micro-element area uses a different reference point, the wrinkle curve formed by the fitting solution is disconnected and cannot form a smooth curve, so it is not advisable. When all micro-element areas use the same reference point, if the position of this reference point changes, it will also cause different fitting results. Fig.13 The reference point position is the best reference point position for the folds in the bending zone.

[0120] In some embodiments, the filling reference point is calculated using the zeroing method. Direction coordinates , the zeroing method includes:

[0121] When the starting fill angle The terminating fill angle When the signs are different, the fill reference point Direction coordinates The calculation formula is:

[0122] ;

[0123] in, Indicates The left edge of the curved area Direction coordinate value, For the right border Direction coordinate value;

[0124] When the starting fill angle The terminating fill angle If the same number ,but Equal to the left edge Direction coordinate value; if ,but Equal to the right border Direction coordinate value.

[0125] Specifically, in order to fit a more perfect wrinkle curve, the zero-approaching principle should be adopted. The specific explanation of this principle is as follows:

[0126] a). When the starting fill angle and the ending fill angle have different signs, the X-direction coordinate value of the reference point = the value when the fill angle is 0 Here we assume that the starting fill angle of a wrinkle is , the X-coordinate value of the left boundary , the ending fill angle is , the X-coordinate value of the right boundary is ,in and Different signs, the X-direction coordinate of the reference point Since the left and right boundaries of the curved area are a line segment rather than a data point, it is more appropriate to take the midpoint coordinate value as the X coordinate value of the left and right boundaries. The Y coordinate value of the reference point can be modified arbitrarily, which does not affect the specific shape of the fold drawing, but only affects the offset of the result in the Y direction.

[0127] b). When the starting fill angle and the ending fill angle have the same sign, select the boundary point whose angle is closer to 0 as the reference point. For example, when the starting fill angle is -50° and the ending fill angle is -20°, select the point on the right boundary as the reference point to obtain a reasonable fitting curve.

[0128] In some embodiments, the starting fill angle , End fill angle and fill reference points Direction coordinates , filling each area of ​​each curved area, including:

[0129] Based on the starting fill angle and the ending fill angle , determine the correction factor;

[0130] Based on the correction coefficient, the starting filling angle and the ending fill angle make corrections;

[0131] And based on the corrected starting filling angle , the modified termination fill angle and fill reference points Direction coordinates , fill each face area of ​​each curved area.

[0132] Specifically, in actual geological conditions, since folds do not cause direct faulting of each layer of rock, the trend line of the curved area drawn should remain nearly tangent to the starting angle ray (ending angle ray) at the starting point (ending point), otherwise there will be abrupt changes in the occurrence when other areas overlap with the curved area. The trend line shape of the curved area fold entity obtained by micro-element segmentation fitting is controlled by the pattern fill reference point and the fill angle of each micro-element area. Since the specific position of the fill reference point has been determined, it is necessary to consider correcting the fill angle to avoid the occurrence of such abrupt conditions. Figure 14-17 The fitting results of the wrinkle bending zone with different correction coefficients of 1, 0.85, 0.7 and 0.55 are shown. The starting filling angle of the bending zone is -30° and the ending filling angle is 30°. Figure 14-17 It can be seen that when the correction coefficient decreases from 1.0 to 0.55, the abruptness of the parallel zone and the occurrence also decreases continuously. When the correction coefficient is taken to 0.55, for this example, the abruptness of the connection between the parallel zone and the curved zone has basically disappeared.

[0133] In some embodiments, the starting fill angle and the ending fill angle , determine the correction factor, including:

[0134] When the starting fill angle The terminating fill angle When the signs are the same, the correction coefficient is:

[0135] ;

[0136] in, Indicates the correction factor.

[0137] In some embodiments, the starting fill angle and the ending fill angle , determine the correction factor, also including:

[0138] When the starting fill angle The terminating fill angle When the signs are different, the first The bending area is divided into left and right sides, and the correction coefficients on the left and right sides are:

[0139] ;

[0140] ;

[0141] in, represents the left side correction coefficient, Indicates the right side correction factor.

[0142] In some embodiments, the starting fill angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each region in the curved area includes:

[0143] Calculate the Unit increment angle of the bending zone for:

[0144] ;

[0145] When the starting fill angle End fill angle When the same number, the The bending zone Filling angle of a small area The calculation method is:

[0146] ;

[0147] When the starting fill angle End fill angle When the signs are different, the The bending zone Filling angle of a small area The calculation method is:

[0148] ;in, To calculate the auxiliary angle;

[0149] .

[0150] In some embodiments, coupling the adjacent geological folds in the curved region and the geological folds in the parallel region to obtain the entire geological fold comprises:

[0151] Based on Correction factor for bending zone Or the left correction factor , adjust the drawing scale of the parallel area on the left so that the interval between the trend lines of the parallel area on the left is equal to the first The interval between the trend lines at the beginning of the first bending zone is to achieve the left parallel zone and the first Coupling overlap of bending zones;

[0152] Based on Correction factor for bending zone Or the right correction factor , adjust the drawing scale of the parallel area on the right side so that the interval between the trend lines of the parallel area on the right side is equal to the first The interval between the trend lines at the end of the first bending zone is to achieve the right parallel zone and the first Coupling overlap of bending zones;

[0153] and in Adjust the filling reference point of the bending area The filling ratio of the bending area is such that The interval between the trend lines of the first curved area is equal to the interval between the trend lines of the right parallel area, so as to achieve the The bending zone is coupled and overlapped with the right parallel zone.

[0154] Specifically, as attached Fig.18 The figure shows the geological folds that have not been coupled after the system has been initially filled. The geological fold is a composite fold consisting of two parallel areas and two curved areas. The basic properties of each area have been marked in the figure. For geological folds that have not been overlapped, there will be obvious breaks between the areas. This is because the reference points and filling ratios of each area are not effectively coupled, so geological engineers need to manually adjust the pattern reference points and pattern filling ratios. Fig.18 Auxiliary point A, auxiliary point B and auxiliary line C are marked in the figure. These are the key data areas in the regional overlapping process.

[0155] a) Select the first parallel zone reference point as auxiliary point A, and the trend lines on both sides of the reference point will be coupled and connected. Since the first curved zone is angle-corrected during the drawing process, the drawing scale of the first parallel zone needs to be adjusted so that the interval between the trend lines in the parallel zone equals the interval between the trend lines at the beginning of the curved zone, and the coupling and overlap of the two zones can be achieved.

[0156] b) Select the second parallel zone reference point as auxiliary point B, adjust the drawing scale of the second parallel zone, and couple the second parallel zone with the first curved zone.

[0157] c) Adjust the filling ratio of the second curved area, make the trend line interval of the second filled area consistent with the trend line interval at the beginning of the second parallel area, adjust the filling origin of the second curved area on the auxiliary line C, and realize the coupling link between the second curved area and the second parallel area (because the X value of the reference point of the curved area must be the filling angle of 0, the reference point of the curved area can only be a point on the auxiliary line C, otherwise the filling shape of the curved area will change).

[0158] Attached Fig.19It is a composite fold overlapped by the above method. As can be seen from the figure, different areas of the geological fold have been coupled and connected, meeting the requirements for mapping geological results.

[0159] The present invention proposes a method for drawing geological folds based on microelement theory. As mentioned above, the present invention starts from engineering practice and decomposes geological folds into multiple basic data units of parallel zones and curved zones. The filling shape of each zone is determined by quantitative parameters, which avoids the influence of human errors caused by geological engineers manually drawing fold data, realizes the standardization and precision of geological fold input parameters, and promotes the digital analysis of fold data. The present invention also proposes a microelement fitting method for the curved zone of geological folds. By decomposing the curved boundary of the fold into a sufficient number of tiny data units and then solving the overall integral, the automatic drawing of the fold graphics in the curved zone is realized. The problems existing in the process of fitting the curved boundary, such as determining the number of microelements, calculating the filling reference points, and calculating the filling angle, are discussed in detail, and corresponding solutions are proposed, all of which have a certain degree of originality. Compared with traditional methods, the curved zone folds drawn by this method are more beautiful, accurate, and more efficient. This method quantifies the fold drawing parameters of the bending zone into the starting and ending strike data of the bending zone that geological engineers can obtain in practice, rather than the fold trend line drawn by geological engineers based on their own experience, which promotes the digital analysis of geological fold data. The present invention also proposes a node coupling method for different data areas of geological folds. Through manual adjustment of relevant parameters by geological engineers, perfect coupling of different data areas (parallel area and bending area, bending area and bending area) can be achieved, thereby solving the problem of difficult coupling of different data areas in the fold drawing process.

[0160] Starting from the microelement concept, the present invention realizes the effective data segmentation and parameter generalization of any geological fold, establishes a graphic drawing method of corresponding parameters for different types of data, and proposes an effective data overlapping method for the data coupling problem in different regions, thereby solving the problem of rapid generation of any geological fold. Compared with traditional methods, the data analysis method of the present invention realizes the parameterization and standardization of fold data, avoids data deviation caused by human experience, and is more in line with the actual geological situation and the development needs of digital technology. The fold drawing method provided by the present invention not only has higher drawing efficiency, but also the drawing results are more in line with the actual geological situation, and can solve the drawing problems of complex folds such as composite folds and multi-layer folds, which greatly facilitates the actual work of geological engineers;

[0161] In some embodiments, Fig. 20 As shown, the present invention also provides a geological fold drawing system 1 based on microelement theory, comprising:

[0162] A division module 11 is used to divide the geological fold into a plurality of bending areas and a plurality of parallel areas based on the formation occurrence, wherein the bending area is an area where the occurrence changes, and the parallel area is an area where the occurrence remains unchanged;

[0163] A parameter generalization module 12, used for generalizing the parameters of the plurality of curved areas and the plurality of parallel areas;

[0164] The segmentation module 13 is used to segment each of the curved areas along the section plane into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area;

[0165] A first filling module 14, configured to fill each area of ​​each curved region based on the parameters;

[0166] The overlapping module 15 is used to overlap the filled surface areas of each bending area to obtain the geological folds of each bending area;

[0167] A second filling module 16 is used to fill each of the parallel zones based on the parameters to obtain geological folds in each parallel zone;

[0168] And a coupling module 17 is used to couple the adjacent geological folds in the bending area and the geological folds in the parallel area to obtain the entire geological fold.

[0169] Optionally, specific examples in the present invention may refer to the examples described in the above embodiments and optional implementation modes.

[0170] The specific embodiments of the present invention described above are for description only and do not represent the advantages or disadvantages of the embodiments.

[0171] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0172] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are only exemplary, for example, multiple devices can be combined or integrated into another system, or some features can be ignored or not executed.

[0173] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for drawing geological folds based on microelement theory, characterized in that: include: Based on the formation attitude, the geological fold is divided into a plurality of bending zones and a plurality of parallel zones, wherein the bending zones are zones where the attitude changes, and the parallel zones are zones where the attitude remains unchanged; generalizing parameters of the plurality of curved regions and the plurality of parallel regions; Each of the curved regions is divided into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area; Filling each face region of each curved area based on the parameters; Overlapping the filled surface areas of each bending zone to obtain geological folds in each bending zone; Based on the parameters, each of the parallel regions is filled to obtain geological folds in each parallel region; and coupling the adjacent geological folds in the bending zone and the geological folds in the parallel zone to obtain the entire geological fold; Each of the curved regions is divided into Areas, including: Based on the The starting fill angle of the bending area , End fill angle and length correction factor , calculate the : ; ,and ; in, For the The number of baseline divisions for a curved zone.

2. The method for drawing geological folds based on microelement theory according to claim 1, characterized in that: The method also includes obtaining a length correction coefficient for each bending zone. ,in, ; in, For the The length correction factor of the bending zone is For the The length of the upper boundary of the bending zone, It is 250-350.

3. The method for drawing geological folds based on microelement theory according to claim 1, characterized in that: The step of filling each area of ​​each curved region based on the parameters comprises: Based on the The starting fill angle of the bending area , End fill angle , calculate the Filling reference points of the curved area Direction coordinates ; And based on the starting fill angle , End fill angle and fill reference points Direction coordinates , fill each face area of ​​each curved area.

4. The method for drawing geological folds based on microelement theory according to claim 3 is characterized in that: Also includes using the zeroing method to calculate the filling reference point Direction coordinates , the zeroing method includes: When the starting fill angle The terminating fill angle When the signs are different, the fill reference point Direction coordinates The calculation formula is: ; in, Indicates The left edge of the curved area Direction coordinate value, For the right border Direction coordinate value; When the starting fill angle The terminating fill angle If the same number ,but Equal to the left edge Direction coordinate value; if ,but Equal to the right border Direction coordinate value.

5. The method for drawing geological folds based on microelement theory according to claim 4 is characterized in that: Based on the starting filling angle , End fill angle and fill reference points Direction coordinates , filling each area of ​​each curved area, including: Based on the starting fill angle and the ending fill angle , determine the Angle correction factor for each bending zone; Based on the starting fill angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each face region in the curved area; and the X-direction coordinates of the filling reference points of each curved area and a filling angle for each face region, and fills each face region of each curved area.

6. The method for drawing geological folds based on microelement theory according to claim 5, characterized in that: Based on the starting filling angle and the ending fill angle , determine the Angle correction factors for each bending zone include: When the starting fill angle The terminating fill angle When the same number, The angle correction factor for each bending zone is: ； in, Indicates Angle correction factor for each bending zone.

7. The method for drawing geological folds based on microelement theory according to claim 6, characterized in that: Based on the starting filling angle and the ending fill angle , determine the The angle correction factor for each bending zone also includes: When the starting fill angle The terminating fill angle When the signs are different, the first The bending area is divided into left and right sides. The left correction factor for the angle of the first bending zone and the The right correction coefficients for the angles of the bending zones are: ； ； in, Indicates The left correction factor for the angle of the bending zone is Indicates The right side correction factor for the angle of the bending zone.

8. The method for drawing geological folds based on microelement theory according to claim 7, characterized in that: Based on the starting filling angle , End fill angle and The angle correction coefficient of the bending zone is calculated The fill angle of each region in the curved area includes: Calculate the Unit increment angle of the bending zone for: ； When the starting fill angle End fill angle When the same number, the The bending zone Filling angle of a small area The calculation method is: ； When the starting fill angle End fill angle When the signs are different, the The bending zone Filling angle of a small area The calculation method is: ;in, To calculate the auxiliary angle; 。 9. The method for drawing geological folds based on microelement theory according to claim 8, characterized in that: The coupling of the adjacent geological folds in the bending zone and the geological folds in the parallel zone to obtain the entire geological fold comprises: Based on Correction factor for bending zone Or the left correction factor , adjust the drawing scale of the parallel area on the left so that the interval between the trend lines of the parallel area on the left is equal to the first The interval between the trend lines at the beginning of the first bending zone is to achieve the left parallel zone and the first Coupling overlap of bending zones; Based on Correction factor for bending zone Or the right correction factor , adjust the drawing scale of the parallel area on the right side so that the interval between the trend lines of the parallel area on the right side is equal to the first The interval between the trend lines at the end of the first bending zone is to achieve the right parallel zone and the first Coupling overlap of bending zones; and in Adjust the filling reference point of the bending area The filling ratio of the bending area is such that The interval between the trend lines of the first curved area is equal to the interval between the trend lines of the right parallel area, so as to achieve the The bending zone is coupled and overlapped with the right parallel zone.

10. A geological fold drawing system based on microelement theory, characterized in that: include: A division module, for dividing the geological fold into a plurality of bending zones and a plurality of parallel zones based on the formation occurrence, wherein the bending zone is a zone where the occurrence changes, and the parallel zone is a zone where the occurrence remains unchanged; A parameter generalization module, used for generalizing the parameters of the plurality of curved areas and the plurality of parallel areas; A segmentation module is used to segment each of the curved areas into area, of which Indicates The bending zone, Indicates The number of regions divided by a curved area; A first filling module, used for filling each area of ​​each curved area based on the parameters; An overlap module, used for overlapping the filled surface areas of each bending zone to obtain geological folds in each bending zone; A second filling module is used to fill each of the parallel zones based on the parameters to obtain geological folds in each parallel zone; and a coupling module, for coupling the adjacent geological folds in the bending zone and the geological folds in the parallel zone to obtain the entire geological fold; Each of the curved regions is divided into Areas, including: Based on the The starting fill angle of the bending area , End fill angle and length correction factor , calculate the : ; ,and ; in, For the The number of baseline divisions for a curved zone.

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