Three-dimensional borehole data integration and display system for seismic regional safety evaluation

Abstract

The application relates to the technical field of data processing, and discloses a three-dimensional borehole data integration and display system for seismic region safety evaluation; the system comprises a mode selection module, a point position marking mode of a seismic region is selected, a point position marking module, interval distribution evaluation data point positions are marked, a data acquisition module, three-dimensional borehole data are acquired, a model construction module, a region simulation model matched with the seismic region is constructed, and an interactive display module is used for dividing the region simulation model into sub-models and establishing region channels between adjacent sub-regions; the application can realize dynamic integration and display effect of three-dimensional borehole data at adjacent positions of a seismic region, can provide independent and reliable interactive display channels for integration and display of three-dimensional borehole data of different time lines and different geographical positions, realizes targeted integration and display effect of local positions of a seismic region on a time line, and improves the accuracy of seismic region safety evaluation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, more particularly, the present application relates to a three-dimensional borehole data integration and display system for seismic area safety evaluation. BACKGROUND

[0002] In the safety evaluation of the seismic area, three-dimensional borehole data is an important basis for analyzing the stability of the geological structure. The traditional seismic safety evaluation method usually relies on two-dimensional geological profiles or discrete borehole data, which is difficult to fully reflect the three-dimensional spatial distribution characteristics of complex geological structures. With the development of three-dimensional geological modeling technology, the regional geological modeling method based on three-dimensional borehole data has become an important way for seismic safety evaluation. In order to comprehensively and accurately evaluate the safety of the seismic area, the collected three-dimensional borehole data needs to be integrated and displayed.

[0003] The patent application with publication number CN118626544A discloses a water conservancy project present site collected data integration and visualization display method, which integrates the engineering site collected data, stores it uniformly in the local or cloud, has data analysis, data complete backup, data sharing and other functions, so as to efficiently manage and analyze the data, help to improve the efficiency of the on-site gate personnel access, protect the personal safety of the operating personnel, improve the distributed multi-node data access efficiency, realize real-time monitoring, integrated display, over-standard early warning and real-time display of the tunnel toxic gas, provide important support for promoting the water conservancy project informatization display construction, and speed up the process of changing the traditional management mode to digital management mode of water conservancy projects. In the engineering implementation process, it comprehensively integrates multi-source information, realizes the full life cycle data aggregation, exchange and sharing of the project from the construction period to the operation period, and assists the engineering managers in management and decision analysis;

[0004] The existing data integration and display system is difficult to dynamically adjust according to the actual structure form of different seismic areas when collecting three-dimensional borehole data, which leads to the phenomenon that adjacent three-dimensional borehole data easily interferes with each other in spatial position. Moreover, the way of integrating and displaying all three-dimensional borehole data cannot realize the dynamic visualization effect of the geological structure of the local position of the seismic area at different time lines, which limits the data integration and display operation of the local key position in the seismic area and cannot provide fine spatio-temporal evolution basis for the safety evaluation of the seismic area, thereby reducing the accuracy of the safety evaluation of the seismic area.

[0005] Therefore, the present application provides a three-dimensional borehole data integration and display system for seismic area safety evaluation to solve the above problems. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, in order to achieve the above-mentioned purposes, the present application provides the following technical scheme: a three-dimensional borehole data integration and display system for seismic area safety evaluation, comprising:

[0007] A mode selection module is configured to collect the horizontal span value and the vertical span value of the seismic area, calculate the area symmetry coefficient, and select the point marking mode of the seismic area based on the size relationship between the area symmetry coefficient and the calibration symmetry coefficient.

[0008] A point marking module is configured to identify the area center point in the seismic area according to the different point marking modes, and mark the interval distributed evaluation data points based on the area center point as the reference.

[0009] A data acquisition module is configured to set a safety evaluation period, collect the three-dimensional borehole data of the evaluation data points in the seismic area in the safety evaluation period, and generate a point data set by collecting the three-dimensional borehole data according to the standard that one point data set corresponds to four sub-sets.

[0010] A model construction module is configured to establish a basic area model with four simulation sites, and integrate the data of the point data set into the corresponding four simulation sites to construct an area simulation model matched with the seismic area.

[0011] An interactive display module is configured to divide the area simulation model into sub-models, establish a region channel with a closed sub-channel between adjacent sub-regions, and control the interactive display of adjacent sub-models in the region channel.

[0012] Further, the method for calculating the area symmetry coefficient is as follows:

[0013] An unmanned aerial vehicle is used to take a bird's-eye view image of the seismic area, and an outer boundary line of the seismic area is drawn on the bird's-eye view image, which is denoted as a region boundary line.

[0014] A plurality of horizontal extension lines and vertical extension lines intersecting the region boundary line are drawn on the bird's-eye view image along the horizontal direction and the vertical direction respectively, and the horizontal extension line and the vertical extension line between the two intersection points of the region boundary line are denoted as a horizontal span line and a vertical span line respectively.

[0015] The lengths of the A horizontal span lines and the A vertical span lines are measured to obtain A first span values and A second span values, and the maximum value of the first span values and the maximum value of the second span values are denoted as a horizontal span value and a vertical span value.

[0016] The larger value and the smaller value of the horizontal span value and the vertical span value are denoted as an upper digit and a lower digit respectively, and the area symmetry coefficient is calculated by dividing the upper digit by the lower digit.

[0017] Further, the point marking mode includes a circular array mode and a rectangular diffusion mode.

[0018] The method for selecting the point marking mode is:

[0019] When the area symmetry coefficient is greater than the calibration symmetry coefficient, the rectangular diffusion mode is selected.

[0020] When the area symmetry coefficient is less than the calibration symmetry coefficient, the circular array mode is selected.

[0021] When the area symmetry coefficient is equal to the calibration symmetry coefficient, three points on the adjacent positions on the area boundary line are randomly selected, and a C number of curved lines are obtained after connecting the three points.

[0022] The maximum value of the curved radian of the C number of curved lines is identified and marked by using the computer vision technology.

[0023] If the maximum value of the curved radian is greater than the calibration radian value, the rectangular diffusion mode is selected; if the maximum value of the curved radian is less than or equal to the calibration radian value, the circular array mode is selected.

[0024] Further, the method for marking the evaluation data points includes:

[0025] When the circular array mode is selected, the intersection point of the horizontal span line and the vertical span line corresponding to the horizontal span value and the vertical span value is recorded as the area center point.

[0026] The average span value is calculated by adding the horizontal span value and the vertical span value.

[0027] In the aerial image, a first area circle is drawn with the area center point as the center and one-third of the average span value as the first radius, and the inner points are marked on the first area circle at an interval of 45 degrees as the first standard.

[0028] In the aerial image, a second area circle is drawn with the area center point as the center and two-thirds of the average span value as the second radius.

[0029] The outer points are marked on the second area circle at an interval of one-third of the first radius as the second standard, and all the outer points and the inner points are collected to obtain B evaluation data points.

[0030] Further, the method for selecting the point marking mode includes:

[0031] When the rectangular diffusion mode is selected, the curved radian of the curved line is arranged in descending order to generate a radian queue.

[0032] Corresponding to the bending lines of the bending arcs in the top four positions in the bending arc queue, a bending line is recorded as a target line, and a point in the middle position of the target line is recorded as a corner point, four corner points are obtained, two diagonal lines are formed by connecting two non-adjacent corner points, and the intersection of the two diagonal lines is recorded as a region center point;

[0033] The length values of the two diagonal lines are measured respectively, and the length values of the two diagonal lines are added and averaged to calculate the diagonal mean value;

[0034] Taking the region center point as the reference and the quarter diagonal mean value as the diffusion standard, the region center point is diffused outward in a circumferential direction to generate a diffusion region, and a boundary line of the diffusion region is drawn, B point positions are marked on the boundary line of the diffusion region, and B evaluation data points are obtained.

[0035] Further, the three-dimensional drilling data includes drilling longitude and latitude, drilling depth, drilling inclination angle, rock type, rock color, rock layer trend, rock layer dip angle, cone tip resistance, sidewall friction, PH value and static water pressure.

[0036] Further, the method for generating the point position data set is:

[0037] B blank initial sets are established, and four sub-sets are divided in the initial sets, which are respectively recorded as the first sub-set, the second sub-set, the third sub-set and the fourth sub-set;

[0038] The drilling longitude and latitude, drilling depth and drilling inclination angle of the B evaluation data points are imported into the first sub-set to generate a space sub-set, the rock type, rock color, rock layer trend and rock layer dip angle are imported into the second sub-set to generate a rock sub-set, and the cone tip resistance and sidewall friction are imported into the third sub-set to generate a drilling sub-set;

[0039] The PH value and static water pressure are imported into the fourth sub-set to produce an environment sub-set, and the initial set with the space sub-set, the rock sub-set, the drilling sub-set and the environment sub-set is recorded as the point position data set to obtain B point position data sets.

[0040] Further, the method for constructing a regional simulation model is:

[0041] The geological data of the earthquake region is queried through the geographic information system, and based on the geological data, a basic regional model of the earthquake region is constructed by combining three-dimensional modeling technology;

[0042] The coordinates of the B evaluation data points are queried one by one and recorded as geographic coordinates, and the points consistent with the geographic coordinates are marked in the basic regional model to obtain B model points;

[0043] Simulate four annular distribution simulation sites on B model points, and mark them as space simulation site, rock-soil simulation site, drilling simulation site and environment simulation site respectively;

[0044] According to the order of collection time, the B point data sets of D safety evaluation periods are bound to the B model points respectively, and the space sub-set, rock-soil sub-set, drilling sub-set and environment sub-set are integrated into the space simulation site, rock-soil simulation site, drilling simulation site and environment simulation site respectively, so as to convert the basic regional model into a regional simulation model.

[0045] Further, the method for dividing the sub-model is:

[0046] Mark the positions of the regional center point and the B evaluation data points in the regional simulation model to obtain a reference point and B division points;

[0047] Draw an extension line through the positions of the B division points from the reference point, and adjust the extension line to extend to the outer edge of the regional simulation model to form B division lines;

[0048] Divide the regional simulation model into B adjacent sub-models according to the B division lines as the division standard.

[0049] Further, the method for establishing a regional channel is:

[0050] Mark the end of the B sub-models in contact with the adjacent two sub-models as a child port and a parent port respectively in a clockwise manner to obtain B child ports and B parent ports;

[0051] Take the child port and the parent port in adjacent positions as two ports of the regional channel, establish a channel profile for bidirectional transmission between the two ports, and construct D closed sub-channels in the channel profile to convert the channel profile into a regional channel.

[0052] The technical effects and advantages of the three-dimensional drilling data integration and display system for seismic regional safety evaluation are:

[0053] The present application selects the point marking mode by calculating the regional symmetry coefficient, which can select the specific position suitable for three-dimensional drilling data collection according to the actual structure of the seismic region, so that the best evaluation data point can be accurately marked in the seismic region with different structure, ensuring that the three-dimensional drilling data collected in the seismic region are independent, avoiding the negative influence of mutual adhesion caused by the actual geographical position of the collected three-dimensional drilling data being too close, and further ensuring the independence and pertinence of the safety evaluation data of the seismic region.

[0054] (2): the three-dimensional drilling data of multiple safety evaluation periods are integrated with the basic area model, the regional simulation model for continuously simulating the geological change of the earthquake area on the time line can be constructed, the dynamic integration effect of the multi-mode data of the earthquake area in different time periods can be realized, the regional simulation model is divided into sub-models, and the regional channels are established between the sub-models, the dynamic integration and display effect of the three-dimensional drilling data at adjacent positions of the earthquake area can be realized, and an independent and reliable interactive display channel for the integration and display of the three-dimensional drilling data of different time lines and different geographical positions is provided, thereby the targeted integration and display effect of the local position of the earthquake area on the time line is realized, a safe data foundation for the safety evaluation of the earthquake area is laid, and the accuracy of the safety evaluation result of the earthquake area is improved. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 A module schematic view of the three-dimensional drilling data integration and display system for safety evaluation of an earthquake area provided by the first embodiment of the present application is shown in the figure.

[0056] Figure 2 A flowchart of the three-dimensional drilling data integration and display method for safety evaluation of an earthquake area provided by the second embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0058] Embodiment one: refer to Figure 1 The three-dimensional drilling data integration and display system for safety evaluation of an earthquake area described in the embodiment includes:

[0059] The mode selection module collects the area parameters of the earthquake area, calculates the area symmetry coefficient of the earthquake area, and selects the point marking mode of the earthquake area based on the area symmetry coefficient.

[0060] The earthquake area refers to a geographical area affected by an earthquake and requiring geological overall structure safety evaluation and analysis, and serves as a guiding object for subsequent data integration and display. Based on the above reasons, when the safety of the earthquake area is evaluated, the structural geographical features of the earthquake area need to be analyzed to lay a foundation for the safety evaluation of the earthquake area.

[0061] The regional parameter is a parameter used for representing geographical structure and position distribution of the seismic region, that is, can provide data support for specific regional type identification of the seismic region.

[0062] Specifically, the regional parameter includes a horizontal span value and a vertical span value; the horizontal span value refers to a length value of the seismic region in a horizontal direction across a geographical range, and the vertical span value refers to a length value of the seismic region in a vertical direction across a geographical range, that is, can represent the length of the geographical distribution of the seismic region on the horizontal plane.

[0063] The method for collecting the regional parameter is:

[0064] The unmanned aerial vehicle shoots a downward image of the seismic region, and draws an outer boundary line of the seismic region in the downward image, which is denoted as a regional boundary line;

[0065] A horizontal extension line and a vertical extension line intersecting the regional boundary line are drawn on the downward image along the horizontal direction and the vertical direction respectively, and the horizontal extension line and the vertical extension line between the two intersection points of the regional boundary line are denoted as a horizontal span line and a vertical span line respectively;

[0066] The lengths of the A horizontal span lines and the A vertical span lines are measured by the scale respectively, A first span values and A second span values are obtained, and the maximum value of the first span value and the maximum value of the second span value are denoted as a horizontal span value and a vertical span value.

[0067] After the horizontal span value and the vertical span value are collected, the regional symmetry coefficient of the seismic region can be calculated based on the horizontal span value and the vertical span value, so that the regional symmetry coefficient can be used as a numerical basis for judging whether the morphological structure of the seismic region is symmetrical;

[0068] Specifically, the method for calculating the regional symmetry coefficient is:

[0069] The horizontal span value and the vertical span value of the seismic region are compared in size, and the larger value and the smaller value are denoted as an upper number and a lower number respectively;

[0070] The upper number and the lower number are divided to calculate the regional symmetry coefficient;

[0071] The calculation formula of the regional symmetry coefficient is:

[0072] ;

[0073] In the formula, is the regional symmetry coefficient, is the upper number, is the lower number.

[0074] After the area symmetry coefficient is calculated, the specific structural form and position distribution of the seismic area are analyzed and identified based on the area symmetry coefficient, and the specific form type of the seismic area is determined, and finally the point marking mode matching the form structure of the seismic area is selected;

[0075] The point marking mode is a mode for marking data collection points in the seismic area. The selection of the point marking mode varies according to the actual structural form of the seismic area, so that the point marking mode for a circular seismic area is not consistent with that for a rectangular seismic area.

[0076] Specifically, the point marking mode includes a ring array mode and a rectangular diffusion mode. The ring array mode is suitable for a circular form structure of the seismic area, and the rectangular diffusion mode is suitable for a rectangular form structure of the seismic area.

[0077] The method for selecting the point marking mode is as follows:

[0078] When the area symmetry coefficient is greater than the calibrated symmetry coefficient, the span range difference of the seismic area in the horizontal direction and the vertical direction is large at this time, which indicates that the form structure of the seismic area is greatly different from the circular structure and is closer to the rectangle, and then the rectangular diffusion mode is selected. The calibrated symmetry coefficient is the minimum value of the area symmetry coefficient of the seismic area for which the rectangular diffusion mode is selected, and provides a basis for the selection of the point marking mode.

[0079] When the area symmetry coefficient is equal to the calibrated symmetry coefficient, the span range difference of the seismic area in the horizontal direction and the vertical direction is moderate at this time, which indicates that the form structure of the seismic area is not greatly different from the circular structure and is close to the rectangle or the circle, then three points on the boundary line of the region in adjacent positions are randomly selected, and the three points are connected to obtain C curved lines.

[0080] The curved radii of the C curved lines are identified one by one through computer vision technology, and the maximum value of the curved radii is marked.

[0081] If the maximum value of the curved radii is greater than the calibrated radius value, the structural form of the seismic area is closer to the rectangle at this time, and then the rectangular diffusion mode is selected. The calibrated radius value is the minimum value of the curved radius when the rectangular diffusion mode is selected, which can provide a lower limit range for the actual bending degree of the curved line.

[0082] If the maximum value of the curved radii is less than or equal to the calibrated radius value, the structural form of the seismic area is closer to the circle at this time, and then the ring array mode is selected.

[0083] When the regional symmetry coefficient is less than the calibration symmetry coefficient, the span difference of the seismic region in the horizontal direction and the vertical direction is smaller, which indicates that the structure of the seismic region is close to the circular structure, and the ring array mode is selected.

[0084] It should be noted that the value of the regional symmetry coefficient is greater than or equal to 1, and the calibration symmetry coefficient is greater than 1 and close to 1. When the regional symmetry coefficient is equal to the calibration symmetry coefficient, the horizontal length and the vertical length of the seismic region are very close, and the structure of the seismic region may be one of a square or a circle.

[0085] The point marking module identifies a regional center point in the seismic region according to the point marking mode, and marks the evaluation data points of the seismic region based on the regional center point.

[0086] After the point marking mode of the seismic region is selected, the evaluation data points required for three-dimensional drilling data collection need to be marked in the seismic region according to different point marking modes. When the evaluation data points are marked, the regional center point needs to be identified in the seismic region first, which can provide a position basis for subsequent marking of the evaluation data points.

[0087] Specifically, when the structure of the seismic region is closer to a circle or a rectangle, the specific identification operations of the identification methods are different, and therefore, the marking operations of the evaluation data points of different point marking modes need to be distinguished.

[0088] Specifically, the method for marking the evaluation data points is as follows:

[0089] When the ring array mode is selected, the structure of the seismic region is closer to a circle, and the intersection point of the horizontal span line and the vertical span line corresponding to the horizontal span value and the vertical span value is recorded as the regional center point.

[0090] The horizontal span value and the vertical span value are added and averaged to calculate the span average.

[0091] In the aerial image, a first region circle is drawn with the regional center point as the center and one-third of the span average as the first radius, and the inner points are marked on the first region circle at an interval of 45 degrees as the first standard.

[0092] In the aerial image, a second region circle is drawn with the regional center point as the center and two-thirds of the span average as the second radius.

[0093] Mark the outer point positions on the second region circle with a third of the first radius as a second standard, and after collecting all the outer point positions and the inner point positions, obtain B evaluation data point positions.

[0094] It should be noted that when the annular array mode is selected, the B data evaluation point positions marked in the seismic region are independent of each other, and there is no phenomenon of coincidence between any two data evaluation point positions, thereby providing an accurate and independent position basis for subsequent three-dimensional drilling data collection.

[0095] As another embodiment of the present embodiment, the method for selecting the point position marking mode is:

[0096] When the rectangular diffusion mode is selected, the structure of the seismic region is closer to a rectangle, and the bending radii of the bending lines are arranged in order from large to small to generate a radius queue;

[0097] The bending line corresponding to the bending radii in the first four positions in the radius queue is recorded as a target line, and the point position in the middle position of the target line is recorded as a corner point to obtain four corner points;

[0098] Two diagonal lines are formed by connecting two non-adjacent corner points, and the intersection of the two diagonal lines is recorded as a region center point; since the seismic region is in a rectangular structure as a whole, the bending line corresponding to the bending radii in the first four positions in the radius queue is the position of the four boundary corners of the seismic region, and at this time, the point position in the middle position of the target line is the position of the four boundary corners of the seismic region, thereby providing point position support for drawing the two diagonal lines and ensuring the accuracy of the marking of the region center point;

[0099] The length values of the two diagonal lines are measured respectively, and the length values of the two diagonal lines are added and averaged to calculate a diagonal average value;

[0100] The region center point is diffused outward in a circumferential direction with the quarter diagonal average value as a diffusion standard to generate a diffusion region;

[0101] The boundary line of the diffusion region is drawn, and B point positions are marked on the boundary line of the diffusion region to obtain B evaluation data point positions.

[0102] It should be noted that the diffusion region formed by diffusion is a similar region to the aerial image of the seismic region, which can ensure that the diffusion region and the seismic region can maintain relative consistency in structure, and provide accurate position limitation for subsequent marking of evaluation data point positions;

[0103] Meanwhile, the evaluation data points marked by any marking mode are used to satisfy the position limitation of subsequent three-dimensional drilling data collection, and the evaluation data points are converted to the corresponding geographical positions in the seismic area according to the specific positions in the overhead image, so that the evaluation data points and the seismic area can be one-to-one corresponding.

[0104] The data collection module sets a safety evaluation period, collects three-dimensional drilling data of the evaluation data points in the safety evaluation period in the seismic area, and aggregates the three-dimensional drilling data based on the same type aggregation criterion to generate a point data set;

[0105] The three-dimensional drilling data refers to the relevant evaluation data collected at the evaluation data points, which can affect the safety and stability of the geological structure of the seismic area, thereby providing data support for the safety evaluation result of the seismic area and laying a foundation for subsequent data integration and display.

[0106] Before collecting the three-dimensional drilling data, in order to continuously evaluate the safety and stability of the seismic area in different time periods, the three-dimensional drilling data of the seismic area needs to be collected and processed periodically at a certain time interval to ensure that the three-dimensional drilling data in the seismic area can be effectively collected every certain time length. Therefore, the safety evaluation period is set in advance, so that the safety evaluation period can limit the length of the time interval for the three-dimensional drilling data collection operation of the evaluation data points in the seismic area.

[0107] Specifically, when setting the safety evaluation period, the length of the safety evaluation period is not fixed or unique, and can be set according to the working performance of the actual three-dimensional drilling data collection equipment or manually defined. For example, the length of a safety evaluation period is 20 minutes, 60 minutes, 120 minutes, etc.

[0108] After setting the safety evaluation period, the three-dimensional drilling data of the evaluation data points in the safety evaluation period in the seismic area can be collected. Specifically, the three-dimensional drilling data includes drilling longitude and latitude, drilling depth, drilling inclination angle, rock type, rock color, rock layer trend, rock layer inclination, cone tip resistance, sidewall friction, PH value and static water pressure.

[0109] The drilling longitude and latitude, drilling depth and drilling inclination angle are used to represent the spatial position data of the drilling operation of the drilling equipment in the evaluation data points. The longitude and latitude geographical information, actual drilling depth and actual drilling inclination angle of the drilling equipment can be referred to. Specifically, the drilling longitude and latitude, drilling depth and drilling inclination angle are obtained by querying the controller on the drilling equipment.

[0110] The rock type, rock color, rock layer strike and rock layer dip are used to represent the specific form and structure of the geological rock layer at the position of the drill hole, and can refer to the specific type of rock, the actual color of rock, the strike and inclination angle of the rock fault position; specifically, the rock type includes but is not limited to clay, granite, etc.; the rock color includes but is not limited to red, gray, etc.; the rock type, the rock color, the rock layer strike and the rock layer dip are obtained after being detected by various sensors integrated on the drill hole equipment; for example, the rock color is detected and obtained by a camera integrated on the drill hole equipment during drilling operation.

[0111] The cone tip resistance and the sidewall friction are used to represent the specific tip pressure and sidewall friction of the rock at the position of the drill hole, and can refer to the rock reaction received by the drill hole equipment during drilling; specifically, the cone tip resistance and the sidewall friction are obtained after being detected by a pressure sensor on the drill hole equipment.

[0112] The PH value and the static water pressure are used to represent the specific environmental parameters in the rock at the position of the drill hole, and can reflect the actual rock geographical environment at the position of the drill hole; specifically, the PH value and the static water pressure are obtained after being detected by an acid-base sensor and a water pressure sensor integrated on the drill hole equipment.

[0113] After collecting the three-dimensional drill hole data, it is necessary to classify and summarize the data of different evaluation data points in different safety evaluation periods, so as to realize the independent summary state of the three-dimensional drill hole data of each evaluation data point in each safety evaluation period, and provide independent and accurate point data set for subsequent safety evaluation of the earthquake area;

[0114] When the three-dimensional drill hole data is summarized into a point data set, it needs to be summarized under the restriction of the same type of summary criterion, so as to ensure the effective and accurate summary of the three-dimensional drill hole data;

[0115] Specifically, the same type of summary criterion is that one point data set corresponds to four sub-sets.

[0116] The method for generating the point data set is:

[0117] B blank initial sets are established, and four sub-sets are divided in the initial sets, which are respectively referred to as the first sub-set, the second sub-set, the third sub-set and the fourth sub-set;

[0118] The drill longitude and latitude, drill depth and drill inclination angle of the B evaluation data points are imported into the first sub-set to generate a space sub-set;

[0119] The rock type, rock color, rock layer strike and rock layer dip are imported into the second sub-set to generate a rock sub-set;

[0120] The cone tip resistance and the sidewall friction are introduced into the third sub-set to generate a borehole sub-set;

[0121] The PH value and the static water pressure are introduced into the fourth sub-set to generate an environment sub-set, and an initial set with the space sub-set, the rock-soil sub-set, the borehole sub-set and the environment sub-set is recorded as a point data set, and B point data sets are obtained.

[0122] It should be noted that the B point data sets constructed can only represent the three-dimensional borehole data of the B evaluation data points in one safety evaluation period. When the three-dimensional borehole data of multiple safety evaluation periods is collected, a reciprocating summary operation needs to be performed on the three-dimensional borehole data of multiple safety evaluation periods to ensure that each safety evaluation period can be used for the corresponding B point data set.

[0123] The model construction module establishes a basic regional model with simulation points, and imports the point data set into the simulation points for data integration to construct a regional simulation model matched with the seismic region;

[0124] The basic regional model is a three-dimensional geological model used to represent the relevant regional structure distribution characteristics of the seismic region marked with the evaluation data points, that is, the distribution and position of the relevant point data in the seismic region can be explained;

[0125] Since the basic regional model can only represent the simple structure position of the seismic region, it cannot simulate the three-dimensional borehole data of each evaluation data point in the seismic region one by one, so the basic regional model cannot be directly used as the object of subsequent safety evaluation of the seismic region. The three-dimensional borehole data of the evaluation data points and the basic regional model need to be integrated and matched to generate a regional simulation model that meets the subsequent safety evaluation of the seismic region.

[0126] The regional simulation model is a virtual model that integrates the basic geological structure characteristics of the seismic region and the three-dimensional borehole data of the evaluation data points, and can comprehensively and accurately reflect the safety of the seismic region. In order to ensure the rationality of the integration operation of the three-dimensional borehole data and the basic regional model, a simulation point corresponding to the evaluation data point needs to be established in the basic regional model, so that the simulation point can be used as a position limit for data integration of the three-dimensional borehole data and the basic regional model.

[0127] Specifically, the method for constructing the regional simulation model is as follows:

[0128] The geological data of the earthquake area is queried out by the geographic information system, and a basic regional model of the earthquake area is constructed based on the geological data and combined with the three-dimensional modeling technology; the geological data is related data reflecting the specific situation of the geological structure of the earthquake area pre-stored in the geographic information system, including but not limited to image data, elevation data, point cloud data and the like;

[0129] The coordinates of the B evaluation data points are queried one by one and recorded as geographic coordinates, and the points consistent with the geographic coordinates are marked in the basic regional model to obtain B model points;

[0130] Four annular simulation positions are simulated on the B model points, which are respectively recorded as a space simulation position, a rock-soil simulation position, a drilling simulation position and an environment simulation position;

[0131] According to the chronological order of the collection time, the B point data sets of the D safety evaluation periods are bound to the B model points respectively, and the space sub-set, the rock-soil sub-set, the drilling sub-set and the environment sub-set are integrated in the space simulation position, the rock-soil simulation position, the drilling simulation position and the environment simulation position respectively, so as to convert the basic regional model into a regional simulation model.

[0132] It should be noted that after the regional simulation model is constructed, the regional simulation model can sequentially integrate and collect the three-dimensional drilling data of the earthquake area in multiple safety evaluation periods, ensuring that each safety evaluation period has complete and comprehensive three-dimensional drilling data, and providing a good model basis for subsequent safety evaluation of the earthquake area.

[0133] The interactive display module divides the regional simulation model into sub-models, establishes a regional channel between adjacent sub-regions, and controls the interactive display of adjacent sub-models in the regional channel;

[0134] After the regional simulation model is constructed, the regional simulation model can be used as a direct object for safety evaluation of the earthquake area, and the three-dimensional drilling data of the earthquake area safety evaluation can be fully integrated and visually displayed and interacted through the regional simulation model, providing convenience for safety evaluation of the earthquake area;

[0135] Since the regional simulation model is simulated and constructed based on the overall structure of the earthquake area, the number of three-dimensional drilling data contained and involved in the regional simulation model is large, which leads to the problem that the local position cannot be highlighted when the data of the earthquake area is displayed for safety evaluation, resulting in poor local position data display effect. Therefore, the regional simulation model needs to be divided and processed so that the overall regional simulation model can be divided into small sub-models for accurate and boundary display of the data of the local position of the earthquake area;

[0136] Specifically, the method for dividing the sub-models is:

[0137] Marking the positions of the regional center point and B evaluation data points in the regional simulation model respectively to obtain a reference point and B division points;

[0138] Drawing an extension line through the positions of the B division points from the reference point, and adjusting the extension line to extend to the outer edge of the regional simulation model to form B division lines;

[0139] Dividing the regional simulation model into B adjacent sub-models based on the B division lines as the division standard.

[0140] After the sub-models are divided, the three-dimensional drilling data of each evaluation data point can be displayed one by one, achieving a point-to-point display effect. To ensure that all sub-models are associated and meet the subsequent integration and aggregation requirements between adjacent sub-models, a regional channel is established between adjacent sub-models to achieve the dual effects of point-to-point integration and display between the sub-models and the evaluation data points.

[0141] Specifically, the method for establishing a regional channel is:

[0142] According to the clockwise manner, the end of the B sub-models that contacts with the adjacent two sub-models is respectively marked as a child port and a parent port to obtain B child ports and B parent ports;

[0143] The child port and the parent port in the adjacent position are respectively taken as two ports of the regional channel, a channel profile for bidirectional transmission is established between the two ports, and D closed sub-channels are constructed in the channel profile to convert the channel profile into a regional channel.

[0144] It should be noted that when the regional channel with D closed sub-channels is constructed, the regional channel can not only achieve the dynamic integration and display effect of the three-dimensional drilling data of the evaluation data points on the adjacent two sub-models, but also provide an independent and reliable interactive display channel for the independent integration and display of the three-dimensional drilling data of the D safety evaluation periods. Each safety evaluation period of three-dimensional drilling data can have a unique interactive display environment to meet the subsequent interactive display requirements of the three-dimensional drilling data of the seismic region through the sub-model, thereby facilitating the safety evaluation operation of the seismic region.

[0145] Embodiment Two: Please refer to Figure 2 The part not described in detail in this embodiment is described in Embodiment One. The three-dimensional drilling data integration and display method for seismic region safety evaluation is provided, which is realized based on the three-dimensional drilling data integration and display system for seismic region safety evaluation, including:

[0146] Step one: collect horizontal span value and vertical span value of the seismic region, calculate the region symmetry coefficient, and select the point marking mode of the seismic region based on the size relationship between the region symmetry coefficient and the calibration symmetry coefficient;

[0147] Step two: according to the difference of the point marking mode, identify the region center point in the seismic region, and mark the interval distributed evaluation data points based on the region center point as the reference;

[0148] Step three: set the safety evaluation period, collect the three-dimensional drilling data of the evaluation data points in the seismic region in the safety evaluation period, and generate the point data set according to the standard that one point data set corresponds to four sub-sets;

[0149] Step four: establish a basic region model with four simulation sites, and integrate the point data set into the corresponding four simulation sites to build a region simulation model matched with the seismic region;

[0150] Step five: divide the region simulation model into sub-models, establish a region channel with a closed sub-channel between adjacent sub-regions, and control the adjacent sub-models to interact and display in the region channel.

[0151] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A three-dimensional borehole data integration and display system for seismic zone safety assessment, characterized in that, include: The mode selection module is used to collect the horizontal and vertical span values ​​of the seismic area, calculate the regional symmetry coefficient, and select the point marking mode of the seismic area based on the relationship between the regional symmetry coefficient and the calibration symmetry coefficient. The point marking module is used to identify the regional center point in the seismic area according to different point marking patterns, and to mark the evaluation data points with interval distribution based on the regional center point; The data acquisition module is used to set the safety assessment period, collect 3D borehole data of assessment data points in the seismic area during the safety assessment period, and summarize the 3D borehole data based on the standard of one data point corresponding to four subsets to generate a data point set; The model building module is used to build a basic regional model with four simulation positions, and import the point data set into the corresponding four simulation positions for data integration to build a regional simulation model that matches the seismic area. The interactive display module is used to divide the regional simulation model into sub-models, establish regional channels with closed sub-channels between adjacent sub-regions, and control the interactive display of adjacent sub-models within the regional channels.

2. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 1, characterized in that, The method for calculating the regional symmetry coefficient is as follows: The aerial images of the earthquake zone are taken by drones, and the outer boundary line of the earthquake zone is drawn in the aerial images and recorded as the regional boundary line. Draw A horizontal extension lines and A vertical extension lines that intersect the boundary line of the region on the top-down image, respectively, along the horizontal and vertical directions. The horizontal extension lines and vertical extension lines located between two intersection points of the boundary line of the region are respectively denoted as the horizontal span line and the vertical span line. Measure the lengths of A horizontal span lines and A vertical span lines respectively to obtain A first span values ​​and A second span values. Record the maximum value of the first span value and the maximum value of the second span value as the horizontal span value and the vertical span value. The larger and smaller values ​​of the horizontal and vertical spans are recorded as the upper and lower digits, respectively. The upper and lower digits are then divided to calculate the regional symmetry coefficient.

3. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 2, characterized in that, Point marking patterns include circular array pattern and rectangular diffusion pattern; The method for selecting the point marking mode is as follows: When the region symmetry coefficient is greater than the calibration symmetry coefficient, select the rectangular diffusion mode; When the regional symmetry coefficient is less than the calibrated symmetry coefficient, select the ring array mode; When the regional symmetry coefficient is equal to the calibration symmetry coefficient, three points on the boundary line of the region that are adjacent to each other are randomly selected, and the three points are connected to obtain C curved lines. The curvature of each of the C curved lines was identified one by one using computer vision technology, and the maximum value of the curvature was marked. If the maximum value of the bending radius is greater than the calibrated radius value, select the rectangular diffusion mode; if the maximum value of the bending radius is less than or equal to the calibrated radius value, select the circular array mode.

4. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 3, characterized in that, Methods for marking evaluation data points include: When the circular array mode is selected, the intersection of the horizontal span line and the vertical span line corresponding to the horizontal span value and the vertical span value is recorded as the center point of the region; The average span value is calculated by adding the horizontal span value and the vertical span value together. In the overhead image, the first region circle is drawn with the center point of the region as the center and the average of one-third of the span as the first radius. The inner points of the first region circle are marked with an interval angle of 45 degrees as the first standard. In the overhead image, draw a second circle with the center point of the region as the center and the average of two-thirds of the span as the second radius; Using one-third of the first radius as the second standard, mark the outer points of the second region circle with interval distribution, and summarize all the outer and inner points to obtain B evaluation data points.

5. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 4, characterized in that, Other methods for selecting point marking patterns include: When the rectangular diffusion mode is selected, the curvature of the curved lines is arranged in descending order to generate a curvature queue. The curvature corresponding to the first four curvatures in the curvature queue is recorded as the target line, and the point in the middle of the target line is recorded as the corner point. Four corner points are obtained. Connect two non-adjacent corner points to form two diagonals, and the intersection of the two diagonals is recorded as the center point of the region. Measure the lengths of the two diagonals separately, add the lengths of the two diagonals together, and calculate the average of the two diagonal lengths to obtain the diagonal mean. Using the center point of the region as a reference and the mean of the quarter diagonal as the diffusion standard, the region is diffused outward in a circumferential manner to generate a diffusion area. The boundary line of the diffusion area is drawn, and B points with interval distribution are marked on the boundary line of the diffusion area to obtain B evaluation data points.

6. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 5, characterized in that, The three-dimensional borehole data includes borehole latitude and longitude, borehole depth, borehole inclination angle, soil and rock type, soil and rock color, stratum strike, stratum dip angle, cone tip resistance, sidewall friction, pH value, and static water pressure.

7. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 6, characterized in that, The method for generating the point data set is as follows: Create B empty initial sets, and divide each initial set into four subsets, denoted as the first subset, the second subset, the third subset, and the fourth subset. Import the borehole latitude and longitude, borehole depth and borehole inclination angle of B evaluation data points into the first subset to generate a spatial subset. Import the soil and rock type, soil and rock color, rock stratum strike and rock stratum dip angle into the second subset to generate a soil and rock subset. Import the cone tip resistance and sidewall friction into the third subset to generate a borehole subset. The pH value and static water pressure are introduced into the fourth subset to produce the environmental subset. The initial set containing the spatial subset, the soil and rock subset, the borehole subset, and the environmental subset is denoted as the point data set, thus obtaining B point data sets.

8. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 7, characterized in that, The method for constructing a regional simulation model is as follows: Geological data of the earthquake zone is retrieved through a geographic information system. Based on the geological data, a basic regional model of the earthquake zone is constructed using 3D modeling technology. The coordinates of B evaluation data points are retrieved one by one and recorded as geographic coordinates. Points that match the geographic coordinates are marked in the basic regional model to obtain B model points. Four ring-shaped simulation sites were simulated at B model points, which were denoted as spatial simulation site, soil and rock simulation site, borehole simulation site and environmental simulation site, respectively. According to the order of collection time, the data sets of B points in D safety evaluation cycles are bound to B model points respectively, and the spatial subset, soil and rock subset, borehole subset and environmental subset are integrated into the spatial simulation site, soil and rock simulation site, borehole simulation site and environmental simulation site respectively, so as to transform the basic regional model into a regional simulation model.

9. The three-dimensional borehole data integration and display system for seismic area safety assessment according to claim 8, characterized in that, The method for dividing the model into sub-models is as follows: In the regional simulation model, mark the locations of the regional center point and B evaluation data points to obtain the benchmark point and B division points; Starting from the reference point, draw extension lines through the locations of the B division points, and adjust the extension lines to extend to the outer edge of the region simulation model to form B division lines; Using B dividing lines as the dividing criteria, the regional simulation model is divided into B adjacent sub-models.

10. The three-dimensional borehole data integration and display system for seismic zone safety assessment according to claim 9, characterized in that, The method for establishing regional channels is as follows: Following a clockwise approach, the ends of the B sub-models that are in contact with the two adjacent sub-models are respectively designated as sub-ports and mother ports, resulting in B sub-ports and B mother ports; The sub-port and the mother port, which are located in adjacent positions, are respectively used as two ports of the regional channel. A bidirectional transmission channel profile is established between the two ports, and D closed sub-channels are constructed within the channel profile, so as to convert the channel profile into a regional channel.

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