Stratigraphic division method based on drilling data and related equipment

Abstract

The application provides a stratum division method based on drilling data and related equipment, relates to the technical field of stratum division, and comprises outputting second geotechnical data chains, screening out noise point data according to depth for the data chains of the same drilling and consistent stratum properties, and generating effective interval records of each drilling; for each stratum property, the depth overlap conditions of the effective interval records of each drilling are counted, a stereoscopic interval set is constructed, a target engineering area is divided into multiple horizontal planes, and the corresponding stratum properties of each horizontal plane are determined, and a standard stratum is constructed based on the corresponding stratum properties of each horizontal plane; the stereoscopic interval meeting the preset condition is merged with the standard stratum, and the standard stratum sequence is generated from top to bottom according to depth. Through automatic calculation, the application can quickly and accurately process a large amount of complex drilling data, and improves the stratum division efficiency.

Description

Technical Field

[0001] This application relates to the technical field of stratigraphy, and in particular to a stratigraphy method and related equipment based on borehole data. Background Technology

[0002] In the field of geotechnical engineering investigation, accurate delineation of standard stratigraphy is crucial for subsequent engineering design and construction. Traditional methods of standard stratigraphy delineation rely primarily on the experience of geologists and field records. This method is not only time-consuming and labor-intensive, but also subject to significant subjectivity and uncertainty due to human factors. Furthermore, traditional stratigraphy delineation methods struggle to process large amounts of complex borehole data, thus limiting the accuracy and efficiency of stratigraphy delineation. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a stratigraphic division method and related equipment based on borehole data, in order to solve the above problems.

[0004] In a first aspect, embodiments of this application provide a stratigraphic division method based on borehole data, including:

[0005] The first geotechnical data chain acquired from the borehole is subjected to feature matching according to the stratum attributes to preliminarily divide the strata and output a second geotechnical data chain. The second geotechnical data chain includes: borehole and stratum attributes, and the stratum attributes include: soil properties, color and hardness.

[0006] For the same borehole in the second geotechnical data chain with consistent formation properties, merge and filter out noise data according to depth to generate valid interval records for each borehole.

[0007] For each formation attribute, the depth overlap of the effective interval records of each borehole is statistically analyzed, and a three-dimensional interval set is constructed. The three-dimensional interval set includes: formation attribute, depth interval and borehole. Based on the three-dimensional interval set, the effective main interval of each formation attribute is selected.

[0008] The target engineering area is divided into multiple horizontal planes, and the depth of each horizontal plane is compared with the effective main interval of each stratigraphic attribute to determine the stratigraphic attribute corresponding to each horizontal plane. A standard stratigraphic layer is constructed based on the stratigraphic attribute corresponding to each horizontal plane.

[0009] If the quasi-three-dimensional interval meets the preset conditions, the quasi-three-dimensional interval is merged with the standard strata, and a standard stratum sequence is generated from top to bottom according to the depth of the merged standard strata.

[0010] The preset conditions include: the three-dimensional interval and the standard strata with the same soil properties are continuous or overlapping in depth;

[0011] The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

[0012] One possible approach is to define the quasi-stereoscopic region as a sandwich or lens body if the quasi-stereoscopic region does not meet the preset conditions.

[0013] The method further includes: generating a standard stratigraphic sequence from top to bottom based on the interlayer or lens body and the merged standard strata according to depth.

[0014] One possible approach is to divide the target engineering area into multiple horizontal planes and match the depth of each horizontal plane with the effective principal interval corresponding to each stratigraphic attribute to determine the stratigraphic attribute corresponding to each horizontal plane. In the step of constructing a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane, the stratigraphic attribute of the target horizontal plane is determined in the following manner:

[0015] Based on the depth of the target horizontal plane, it is compared with the effective main interval of each of the aforementioned stratigraphic attributes to select the first target stratigraphic attribute;

[0016] Based on the depth of the target horizontal plane and the first target stratum attribute, determine the maximum number of boreholes covered by each stratum attribute in the first target stratum attribute, and determine the second target stratum attribute based on the maximum value. The second target stratum attribute is the stratum attribute of the target horizontal plane.

[0017] One possible approach is to statistically analyze the depth overlap of the effective interval records for each borehole for each formation attribute, and construct a three-dimensional interval set, which includes formation attributes, depth intervals, and boreholes. Then, based on this three-dimensional interval set, the effective main interval for each formation attribute is selected.

[0018] For the target stratigraphic attributes, the effective principal intervals of the target stratigraphic attributes are determined using the following method:

[0019] Obtain the target valid interval record, which includes: the valid interval record of the target formation attribute in each borehole;

[0020] Based on the depths recorded in the target effective interval, several depth intervals are generated according to the depth from smallest to largest, and the number of boreholes covered by each depth interval is counted to construct a target-type three-dimensional interval set.

[0021] In the set of target-type three-dimensional intervals, if the interval length of the depth interval exceeds the first threshold and the number of boreholes covered is greater than or equal to the second threshold, then it is a valid target-type three-dimensional interval. The valid main interval of the target stratum attribute is the three-dimensional interval with the largest number of boreholes covered in the valid target-type three-dimensional intervals.

[0022] One possible approach is that the method further includes: statistically analyzing the physical and mechanical properties of each standard stratigraphic depth range in the standard stratigraphic sequence, and generating at least one of the maximum, minimum, mean, and coefficient of variation characteristic indicators of each physical parameter.

[0023] One possible approach is that the method further includes: updating the elevation range of the borehole top and bottom of the standard strata based on the elevation data of each standard stratum in the standard stratigraphic sequence, and analyzing the embedding or cross-distribution relationship between pairs of strata.

[0024] One possible approach is that the method further includes: obtaining the geological genesis type and performing a secondary division of each standard stratum in the standard stratigraphic sequence based on the geological genesis type.

[0025] Secondly, this application provides a formation delineation device based on borehole data, comprising:

[0026] The segmentation module is used to perform feature matching on the first geotechnical data chain acquired from the borehole according to the stratum attributes, initially segment the strata, and output the second geotechnical data chain. The second geotechnical data chain includes: borehole and stratum attributes, and the stratum attributes include: soil properties, color, and hardness.

[0027] Generation module: used to merge and filter out noise data of the same borehole with consistent formation properties in the second geotechnical data chain according to depth, and generate valid interval records for each borehole;

[0028] Construction module: For each formation attribute, it is used to statistically analyze the depth overlap of the effective interval records of each borehole, and construct a three-dimensional interval set, which includes formation attributes, depth intervals and boreholes, and filter out the effective main intervals of each formation attribute based on the three-dimensional interval set.

[0029] Determination module: used to divide the target engineering area into multiple horizontal planes, compare the depth of each horizontal plane with the effective main interval of each stratigraphic attribute, determine the stratigraphic attribute corresponding to each horizontal plane, and construct a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane;

[0030] Output module: If the three-dimensional interval meets the preset conditions, it merges the three-dimensional interval with the standard strata and generates a standard stratum sequence from top to bottom according to the depth of the merged standard strata.

[0031] The preset conditions include: the three-dimensional interval and the standard strata with the same soil properties are continuous or overlapping in depth;

[0032] The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

[0033] Thirdly, this application provides an electronic device, comprising:

[0034] At least one processor; and

[0035] At least one memory communicatively connected to the processor, wherein:

[0036] The memory stores program instructions that can be executed by the processor, which can invoke the program instructions to perform the method as described in the first aspect.

[0037] Fourthly, this application provides a computer-readable storage medium that stores computer instructions that cause the computer to perform the method described in the first aspect.

[0038] The embodiments of this application bring the following beneficial effects:

[0039] This application utilizes automated calculations to rapidly and accurately process large amounts of complex borehole data, significantly improving the accuracy and efficiency of standard stratigraphic division, reducing human interference, and enhancing the objectivity and reliability of stratigraphic division. Simultaneously, by using feature matching and vertical merging to filter out outliers, this method can more accurately generate valid interval records for each borehole, providing more precise data support for subsequent engineering geological analysis. Furthermore, this method can merge quasi-three-dimensional intervals with standard strata according to preset conditions to generate standard stratigraphic sequences, further improving the accuracy and consistency of stratigraphic division.

[0040] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application are realized and obtained through the structures particularly pointed out in the description, claims and drawings.

[0041] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 A flowchart of a formation partitioning method based on borehole data is provided for an embodiment of this application;

[0044] Figure 2 A flowchart illustrating another stratigraphic division method based on borehole data provided in this application embodiment;

[0045] Figure 3 A structural diagram of a formation delineation device based on borehole data provided in this application embodiment;

[0046] Figure 4 This is a structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] Currently, in the field of geotechnical engineering investigation, the accurate delineation of standard strata is crucial for subsequent engineering design and construction. Traditional methods of standard strata delineation mainly rely on the experience of geologists and field records. This method is not only time-consuming and labor-intensive, but also subject to significant subjectivity and uncertainty due to human factors. Furthermore, traditional strata delineation methods struggle to process large amounts of complex borehole data, thus limiting the accuracy and efficiency of strata delineation.

[0049] Based on this, embodiments of this application provide a stratigraphic division method and related equipment based on borehole data, in order to solve the above-mentioned problems.

[0050] To facilitate understanding of this embodiment, a stratigraphic division method based on borehole data disclosed in this application embodiment will first be described in detail.

[0051] Reference Figure 1 This application provides a method for stratigraphic division based on borehole data, including:

[0052] S1: Perform feature matching on the first geotechnical data chain acquired from the borehole according to the stratum attributes, preliminarily divide the strata, and output the second geotechnical data chain.

[0053] Here, the second geotechnical data chain includes: borehole and stratum properties, wherein the stratum properties include: soil properties, color, and hardness.

[0054] For example, in the embodiments provided in this application, a total of 30 original borehole data were collected, and the original geotechnical data chain (i.e. the first geotechnical data chain) has a total of 760 links, that is, the amount of data collected from each borehole is 760 links.

[0055] For example, data link A is [borehole S01, 2.5-4.0m, soil type: silty clay, color: grayish brown, state: soft plastic];

[0056] Data link B is [Borehole S02, 2.7-4.2m, Soil type: silty clay, Color: dark gray, State: extremely soft];

[0057] In this step, the terms in the original geotechnical data chain are normalized, for example, clay and clay are unified as clay, and some ambiguous terms (such as extremely soft) are standardized. In some examples, the second geotechnical data chain is encoded according to the stratigraphic properties.

[0058] S2: For the data chains of the same borehole in the second geotechnical data chain with consistent stratum properties, merge and filter out noise data according to depth to generate valid interval records for each borehole.

[0059] For example, taking borehole S01 as an example, the second geotechnical data chain includes: S01-③-clay-brown-soft plastic [4-5], S01-③-clay-brown-soft plastic [5-7], where [4-5] and [5-7] represent depth in meters, and ③ is the stratum attribute number. In this step, in order to generate a valid interval record, for borehole S01, the two data chains mentioned above are merged according to depth, and the merged data chain is S01-③-clay-brown-soft plastic [4-7].

[0060] It should be noted that soil layers smaller than 0.8 meters are considered "noisy data" or "discontinuous lenticular fragments" in macroscopic stratigraphic division. If, after merging, the depth interval is less than 0.8 meters, it indicates that the interval belongs to noisy data or discontinuous lenticular fragments and is not a valid interval record.

[0061] S3: For each type of geological attribute, the depth overlap of the effective interval records of each borehole is statistically analyzed, and a three-dimensional interval set is constructed.

[0062] The set of quasi-three-dimensional intervals includes: formation attributes, depth intervals, and boreholes, and the effective main intervals for each formation attribute are selected based on the set of quasi-three-dimensional intervals.

[0063] Specifically, in this step, the effective principal intervals of the target stratigraphic attributes are determined using the following method:

[0064] Here, the target stratigraphic attribute is any of the aforementioned coded stratigraphic attributes. Taking clay-brown-soft plastic as an example, if it is necessary to determine the effective main interval of clay-brown-soft plastic, then clay-brown-soft plastic is the target stratigraphic attribute.

[0065] To determine the effective stratification zone of clay-brown-soft plastic, the following steps are required:

[0066] First, it is necessary to obtain the target valid interval record, which includes the target formation attribute valid interval record in each borehole.

[0067] In this step, taking clay-brown-soft plastic as an example, in step S2, the effective interval records of clay-brown-soft plastic in boreholes S01 to S30 have been obtained. To simplify the description, five boreholes are used as examples to illustrate how to determine the effective main interval of clay-brown-soft plastic. In other words, the target effective interval record represents the effective interval record of clay-brown-soft plastic in boreholes S01 to S05.

[0068] Then, based on the depths recorded in the target effective interval, several depth intervals are generated according to the depth from smallest to largest, and the number of boreholes covered by each depth interval is counted to construct a target-type three-dimensional interval set.

[0069] Here, we assume the set of solid intervals for the labeled class is as follows:

[0070] S01-③-Clay-Brown-Soft Plastic [4-7];

[0071] S02-③-clay-brown-soft plastic[5-7];

[0072] S03-③-clay-brown-soft plastic[5-8];

[0073] S04-③-Clay-Brown-Soft Plastic [4-10];

[0074] S05-③-Clay-Brown-Soft Plastic [5-11]

[0075] Here, the depth values ​​include: 4, 5, 7, 8, 10, and 11. Therefore, the specific depth intervals include [4-5], [5-7], [7-8], [8-10], and [10-11]. Specifically, [4-5] includes borehole data for S01 and S04, [5-7] includes borehole data from S01 to S05, [7-8] covers borehole data for S03, S04, and S05, [8-10] includes borehole data for S04 and S05, and [10-11] includes borehole data for S05. This constructs a set of quasi-three-dimensional intervals representing the clay-brown-soft plastic stratigraphic property, i.e., the target quasi-three-dimensional interval set.

[0076] Understandably, the target class three-dimensional interval set is the class three-dimensional interval set corresponding to the target stratigraphic attributes.

[0077] Then, effective target three-dimensional intervals are selected from the set of three-dimensional intervals. Specifically, if the length of the depth interval in the set of target three-dimensional intervals exceeds the first threshold and the number of boreholes covered is greater than or equal to the second threshold.

[0078] It should be noted that the first threshold is the minimum allowed value of the depth range, and the second threshold is the minimum allowed value of the number of boreholes covered. For example, the first threshold is 1.5, and the second threshold is 2.

[0079] Based on the aforementioned embodiments, for clay-brown-soft plastic, [5-7] and [8-10] are both effective three-dimensional regions of clay-brown-soft plastic, i.e. target three-dimensional regions, while the effective main region of clay-brown-soft plastic is the three-dimensional region with the most boreholes covered in the target three-dimensional region, i.e., [5-7].

[0080] By using the above method, the effective main interval corresponding to each stratigraphic attribute can be determined.

[0081] S4: Divide the target engineering area into multiple horizontal planes, compare the depth of each horizontal plane with the effective main interval of each stratigraphic attribute, determine the stratigraphic attribute corresponding to each horizontal plane, and construct a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane.

[0082] It should be noted that the target engineering area is the engineering area where the strata need to be divided. Here, a depth step can be set, and the target engineering area can be divided into multiple horizontal planes based on the depth step.

[0083] Specifically, in this embodiment, the sampling interval of the borehole is one meter, that is, the depth step is 1 meter. Since the maximum drilling depth in the engineering area is 30 meters, a total of 29 horizontal planes are generated. Then, the corresponding stratum properties of each horizontal plane are determined, and a standard stratum is constructed.

[0084] S5: If the quasi-three-dimensional interval meets the preset conditions, the quasi-three-dimensional interval is merged with the standard strata, and a standard stratum sequence is generated from top to bottom according to the depth of the merged standard strata.

[0085] It should be noted that the preset conditions are: the three-dimensional interval is continuous or overlaps with the standard stratum with the same soil properties at depth, and the three-dimensional interval exists in the non-standard stratum or / and in the non-main interval of the standard stratum.

[0086] If the quasi-three-dimensional interval meets the preset conditions, the quasi-three-dimensional interval is merged with the standard strata, and a standard stratum sequence is generated from top to bottom according to the depth of the merged standard strata.

[0087] The preset conditions include: the three-dimensional interval has the same soil properties as the standard stratum and is continuous or overlaps in depth.

[0088] The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

[0089] This application has the following beneficial effects:

[0090] This application utilizes automated calculations to rapidly and accurately process large amounts of complex borehole data, significantly improving the accuracy and efficiency of standard stratigraphic division, reducing interference from human factors, and enhancing the objectivity and reliability of stratigraphic division. Simultaneously, by using feature matching and vertical merging to filter out outlier data, this method can more accurately generate valid interval records for each borehole, providing more precise data support for subsequent engineering geological analysis. Furthermore, this method can merge quasi-three-dimensional intervals with standard strata according to preset conditions to generate standard stratigraphic sequences, further improving the accuracy and consistency of stratigraphic division.

[0091] Based on the foregoing embodiments, in some embodiments, if the quasi-stereoscopic region does not meet the preset conditions, the quasi-stereoscopic region is defined as a sandwich or lens body;

[0092] The method further includes: generating a standard stratigraphic sequence from top to bottom based on the interlayer or lens body and the merged standard strata according to depth.

[0093] By introducing the definition of interlayers or lenses, the accuracy and completeness of standard stratigraphic division are further improved through the above methods. When a quasi-three-dimensional region does not meet the preset conditions, it is defined as an interlayer or lens, which can more accurately reflect the complexity and diversity of strata.

[0094] The following will explain how to determine the stratigraphic properties of each horizontal plane:

[0095] Reference Figure 2As can be seen from the foregoing, in the aforementioned S4 step of dividing the target engineering area into multiple horizontal planes, comparing the depth of each horizontal plane with the effective main interval of each stratigraphic attribute to determine the stratigraphic attribute corresponding to each horizontal plane, and constructing a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane, the stratigraphic attribute of the target horizontal plane is determined in the following manner:

[0096] S41: Based on the depth of the target horizontal plane, compare it with the effective main interval of each of the aforementioned stratigraphic attributes, and select the first target stratigraphic attribute.

[0097] In this step, since the maximum drilling depth in the engineering area is 30 meters, a total of 29 horizontal planes are generated. As mentioned above, the effective main interval of each stratum attribute has been obtained, and the effective main interval of each stratum attribute includes the depth interval. Here, the depth of the target horizontal plane is used as the index condition to select the first target stratum attribute from the effective main intervals of all stratum attributes.

[0098] Furthermore, the depth range of the effective main interval of the first target stratigraphic attribute conforms to the target horizontal plane.

[0099] S42: Based on the depth of the target horizontal plane and the first target formation attribute, determine the maximum number of boreholes covered by each formation attribute in the first target formation attribute, and determine the second target formation attribute based on the maximum value.

[0100] For example, assuming the target horizontal plane is 2 to 3 meters, and using 2 to 3 meters as the search element, the effective main intervals of clay-brown-soft plastic and silty soil-dark gray-fluid plastic both conform to the target horizontal plane. Therefore, clay-brown-soft plastic and silty soil-dark gray-fluid plastic both correspond to the aforementioned first target stratum.

[0101] Here, the effective main interval corresponding to clay-brown-soft plastic covers 25 boreholes, while the effective main interval corresponding to silty soil-dark gray-fluid plastic covers 12 boreholes. Therefore, clay-brown-soft plastic is the second target stratum attribute, that is, the stratum attribute of the target horizontal plane is clay-brown-soft plastic.

[0102] It should be noted that the second target stratigraphic attribute is the stratigraphic attribute of the target horizontal plane.

[0103] By using the above method, the stratigraphic properties corresponding to each horizontal plane can be determined, which improves the accuracy and representativeness of stratigraphic division and provides more accurate and reliable geological data support for geotechnical engineering investigation.

[0104] Based on the aforementioned embodiments, in order to analyze the physical and mechanical properties of each standard stratum, in some embodiments, the physical and mechanical properties of each standard stratum depth range in the standard stratum sequence are statistically analyzed to generate one or more of the maximum, minimum, mean, and coefficient of variation characteristic indicators of each physical parameter.

[0105] In addition, in some embodiments, based on the elevation data of each standard stratum in the standard stratigraphic sequence, the elevation range of the borehole top and bottom of the standard strata is updated, and the embedding or cross-distribution relationship between pairs of strata is analyzed.

[0106] This step further improves the accuracy and reliability of stratigraphic division. Updating the elevation range of the borehole top and bottom of the standard stratigraphic units can more accurately reflect the spatial distribution characteristics of the strata, providing more detailed and accurate geological information for subsequent engineering design and construction.

[0107] In some embodiments, the terminal is equipped with an interactive interface. The user inputs the geological genesis type through the interactive interface, the terminal obtains the geological genesis type, and performs secondary division of each standard stratum in the standard stratigraphic sequence based on the geological genesis type.

[0108] The introduction of geological genesis types allows stratigraphic classification to be based not only on physical characteristics but also on the formation process and history of strata, thus enabling a deeper understanding of the properties and behavior of strata. Secondary classification allows strata with similar geological genesis to be grouped together, which helps to more accurately assess the engineering properties of strata, such as stability and permeability, providing a more scientific and targeted geological basis for engineering design and construction.

[0109] Reference Figure 3 Based on the foregoing embodiments, this application also provides a formation delineation device based on borehole data, comprising:

[0110] The segmentation module is used to perform feature matching on the first geotechnical data chain acquired from the borehole according to the stratum attributes, initially segment the strata, and output the second geotechnical data chain. The second geotechnical data chain includes: borehole and stratum attributes, and the stratum attributes include: soil properties, color, and hardness.

[0111] Generation module: used to merge and filter out noise data of the same borehole with consistent formation properties in the second geotechnical data chain according to depth, and generate valid interval records for each borehole;

[0112] Construction module: For each formation attribute, it is used to statistically analyze the depth overlap of the effective interval records of each borehole, and construct a three-dimensional interval set, which includes formation attributes, depth intervals and boreholes, and filter out the effective main intervals of each formation attribute based on the three-dimensional interval set.

[0113] Determination module: used to divide the target engineering area into multiple horizontal planes, compare the depth of each horizontal plane with the effective main interval of each stratigraphic attribute, determine the stratigraphic attribute corresponding to each horizontal plane, and construct a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane;

[0114] Output module: If the three-dimensional interval meets the preset conditions, it merges the three-dimensional interval with the standard strata and generates a standard stratum sequence from top to bottom according to the depth of the merged standard strata.

[0115] The preset conditions include: the three-dimensional interval and the standard strata with the same soil properties are continuous or overlapping in depth;

[0116] The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

[0117] The device provided in this application embodiment has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0118] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of methods and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions. Figure 4 A block diagram is shown that is suitable for implementing embodiments of the present application. Figure 4 The electronic device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0119] like Figure 4 As shown, the electronic device is represented in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: one or more processors 410, a communication interface 420, a memory 430, and a communication bus 440 connecting different system components (including the memory 430 and the processor 410).

[0120] Communication bus 440 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) buses, Micro Channel Architecture (MAC) buses, Enhanced ISA buses, Video Electronics Standards Association (VESA) local buses, and Peripheral Component Interconnect (PCI) buses.

[0121] Electronic devices typically include a variety of computer-readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, and removable and non-removable media.

[0122] Memory 430 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this application.

[0123] A program / utility having a set (at least one) of program modules can be stored in memory 430. Such program modules include, but are not limited to, an operating system, one or more applications, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. The program modules typically perform the functions and / or methods described in the embodiments of this application.

[0124] Processor 410 executes various functional applications and data processing by running programs stored in memory 430, such as implementing embodiments of this application. Figure 1 The method provided in the illustrated embodiment.

[0125] This application provides a non-transitory computer-readable storage medium that stores computer instructions, which cause the computer to execute embodiments of this application. Figure 1 The method provided in the illustrated embodiment.

[0126] The aforementioned computer-readable storage medium may be any combination of one or more computer-readable media. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that may be used by or in connection with an instruction execution system, apparatus, or device.

[0127] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0128] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0129] Computer program code for performing the operations of the embodiments of this application can be written in one or more programming languages ​​or a combination thereof. The programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0130] The foregoing has described specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0131] In the description of the embodiments of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In the embodiments of this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in the embodiments of this application, as well as the features of different embodiments or examples.

[0132] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0133] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0134] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0135] It should be noted that the terminals involved in the embodiments of this application may include, but are not limited to, personal computers (PCs), personal digital assistants (PDAs), wireless handheld devices, tablet computers, mobile phones, MP3 players, MP4 players, etc.

[0136] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0137] Furthermore, the functional units in the various embodiments of this application can be integrated into a single processor, or each unit can exist physically separately, or two or more units can be integrated into a single unit. The integrated units described above can be implemented in hardware or in a combination of hardware and software functional units.

[0138] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0139] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present application should be included within the scope of protection of the present application.

Claims

1. A stratigraphic division method based on borehole data, characterized in that, include: The first geotechnical data chain acquired from the borehole is subjected to feature matching according to the stratum attributes to preliminarily divide the strata and output a second geotechnical data chain. The second geotechnical data chain includes: borehole and stratum attributes, and the stratum attributes include: soil properties, color and hardness. For the same borehole in the second geotechnical data chain with consistent formation properties, merge and filter out noise data according to depth to generate valid interval records for each borehole. For each formation attribute, the depth overlap of the effective interval records of each borehole is statistically analyzed, and a three-dimensional interval set is constructed. The three-dimensional interval set includes: formation attribute, depth interval and borehole. Based on the three-dimensional interval set, the effective main interval of each formation attribute is selected. The target engineering area is divided into multiple horizontal planes, and the depth of each horizontal plane is compared with the effective main interval of each stratigraphic attribute to determine the stratigraphic attribute corresponding to each horizontal plane. A standard stratigraphic layer is constructed based on the stratigraphic attribute corresponding to each horizontal plane. If the quasi-three-dimensional interval meets the preset conditions, the quasi-three-dimensional interval is merged with the standard strata, and a standard stratum sequence is generated from top to bottom according to the depth of the merged standard strata. The preset conditions include: the three-dimensional interval and the standard strata with the same soil properties are continuous or overlapping in depth; The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

2. The method according to claim 1, characterized in that, If the quasi-three-dimensional region does not meet the preset conditions, then the quasi-three-dimensional region is defined as a sandwich or lens body; The method further includes: generating a standard stratigraphic sequence from top to bottom based on the interlayer or lens body and the merged standard strata according to depth.

3. The method according to claim 1, characterized in that, In the step of dividing the target engineering area into multiple horizontal planes and matching the depth of each horizontal plane with the effective principal interval corresponding to each stratigraphic attribute to determine the stratigraphic attribute corresponding to each horizontal plane, and constructing a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane, the stratigraphic attribute of the target horizontal plane is determined in the following way: Based on the depth of the target horizontal plane, it is compared with the effective main interval of each of the aforementioned stratigraphic attributes to select the first target stratigraphic attribute; Based on the depth of the target horizontal plane and the first target stratum attribute, determine the maximum number of boreholes covered by each stratum attribute in the first target stratum attribute, and determine the second target stratum attribute based on the maximum value. The second target stratum attribute is the stratum attribute of the target horizontal plane.

4. The method according to claim 2, characterized in that, In the step of statistically analyzing the depth overlap of the effective interval records for each borehole for each formation attribute and constructing a three-dimensional interval set, the three-dimensional interval set includes: formation attribute, depth interval, and borehole, and filtering out the effective main interval for each formation attribute based on the three-dimensional interval set, For the target stratigraphic attributes, the effective principal intervals of the target stratigraphic attributes are determined using the following method: Obtain the target valid interval record, which includes: the valid interval record of the target formation attribute in each borehole; Based on the depths recorded in the target effective interval, several depth intervals are generated according to the depth from smallest to largest, and the number of boreholes covered by each depth interval is counted to construct a target-type three-dimensional interval set. In the set of target-type three-dimensional intervals, if the interval length of the depth interval exceeds the first threshold and the number of boreholes covered is greater than or equal to the second threshold, then it is a valid target-type three-dimensional interval. The valid main interval of the target stratum attribute is the three-dimensional interval with the largest number of boreholes covered in the valid target-type three-dimensional intervals.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: statistically analyzing the physical and mechanical indices of each standard stratigraphic depth range in the standard stratigraphic sequence, and generating at least one of the maximum, minimum, mean, and coefficient of variation characteristic indices of each physical parameter.

6. The method according to claim 5, characterized in that, The method further includes: updating the elevation range of the borehole top and bottom of the standard strata based on the elevation data of each standard stratum in the standard stratigraphic sequence, and analyzing the embedding or cross-distribution relationship between pairs of strata.

7. The method according to claim 5, characterized in that, The method further includes: obtaining the geological genetic type, and performing secondary division of each standard stratum in the standard stratigraphic sequence based on the geological genetic type.

8. A stratigraphic division device based on borehole data, characterized in that, include: The segmentation module is used to perform feature matching on the first geotechnical data chain acquired from the borehole according to the stratum attributes, initially segment the strata, and output the second geotechnical data chain. The second geotechnical data chain includes: borehole and stratum attributes, and the stratum attributes include: soil properties, color, and hardness. Generation module: used to merge and filter out noise data of the same borehole with consistent formation properties in the second geotechnical data chain according to depth, and generate valid interval records for each borehole; Construction module: For each formation attribute, it is used to statistically analyze the depth overlap of the effective interval records of each borehole, and construct a three-dimensional interval set, which includes formation attributes, depth intervals and boreholes, and filter out the effective main intervals of each formation attribute based on the three-dimensional interval set. Determination module: used to divide the target engineering area into multiple horizontal planes, compare the depth of each horizontal plane with the effective main interval of each stratigraphic attribute, determine the stratigraphic attribute corresponding to each horizontal plane, and construct a standard stratigraphic layer based on the stratigraphic attribute corresponding to each horizontal plane; Output module: If the three-dimensional interval meets the preset conditions, it merges the three-dimensional interval with the standard strata and generates a standard stratum sequence from top to bottom according to the depth of the merged standard strata. The preset conditions include: the three-dimensional interval and the standard strata with the same soil properties are continuous or overlapping in depth; The quasi-three-dimensional interval exists in non-standard strata or / and in non-main intervals within standard strata.

9. An electronic device, characterized in that, include: At least one processor; as well as At least one memory communicatively connected to the processor, wherein: The memory stores program instructions that can be executed by the processor, which can invoke the program instructions to perform the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause the computer to perform the method as described in any one of claims 1 to 7.

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