CN116341294B - Three-dimensional stress field construction method and device - Google Patents
Three-dimensional stress field construction method and device Download PDFInfo
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- CN116341294B CN116341294B CN202310618710.XA CN202310618710A CN116341294B CN 116341294 B CN116341294 B CN 116341294B CN 202310618710 A CN202310618710 A CN 202310618710A CN 116341294 B CN116341294 B CN 116341294B
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Abstract
In the method and the device for constructing the three-dimensional stress field, drilling position data of a plurality of drilling holes in a target area, measuring point position data of each measuring point in each drilling hole and measuring point stress data are obtained; obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data; based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point; obtaining a marked three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data; and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model. The application improves the accuracy degree of the three-dimensional stress field and reflects the dynamic change rule.
Description
Technical Field
The application relates to the technical field of geological exploration and coal and rock exploitation, in particular to a three-dimensional stress field construction method, a three-dimensional stress field construction device and a storage medium.
Background
In the coal and rock exploitation process, the stress of the underground rock mass can be changed rapidly, so that the large deformation, instability and damage of the surrounding rock mass of the roadway are aggravated, dynamic disasters such as rock burst, roof fall, rock burst, coal and gas outburst and the like are frequent, and the safe and efficient exploitation of deep resources is seriously influenced. Based on the method, the rock mass initial ground stress field is utilized in the coal and rock exploitation process, the stress field under the exploitation disturbance is constructed in real time, so that the rock mass stress change in the exploitation process is monitored in real time, the disasters in the exploitation activity are prejudged in advance, and the exploitation process is guaranteed to be efficient, orderly and safe.
In the related art, single measurement of a single point is mainly performed when the ground stress is measured, only the unidirectional stress effect of the rock mass is considered, so that the measurement data is single, the dynamic change rule of the rock mass stress cannot be obtained, and the rock mass stress change in the mining process cannot be monitored in real time.
Disclosure of Invention
The application provides a three-dimensional stress field construction method, a three-dimensional stress field construction device and a storage medium, and aims to solve the technical problems in the related art.
An embodiment of a first aspect of the present application provides a method for constructing a three-dimensional stress field, including:
acquiring drilling position data of a plurality of drilling holes in a target area, and measuring point position data and measuring point stress data of each measuring point in each drilling hole, wherein the target area is an area to be constructed into a three-dimensional stress field;
obtaining geological data of the target area, and constructing an initial three-dimensional geological model of the target area based on the geological data;
based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point;
labeling the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model;
and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
An embodiment of a second aspect of the present application provides a three-dimensional stress field construction device, including:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring drilling position data of a plurality of drilling holes in a target area, measuring point position data and measuring point stress data of each measuring point in each drilling hole, and the target area is an area for constructing a three-dimensional stress field;
the second acquisition module is used for acquiring geological data of the target area and constructing an initial three-dimensional geological model of the target area based on the geological data;
the processing module is used for obtaining the measured point rock mass stress data and the direction data of each measured point based on the measured point position data and the measured point stress data of each measured point;
the marking module is used for marking the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data, and obtaining a marked three-dimensional geological model;
the construction module is used for obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
An embodiment of the third aspect of the present application provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor is capable of implementing the method according to the first aspect.
The embodiment of the fourth aspect of the application provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; the computer executable instructions, when executed by a processor, are capable of implementing the method as described in the first aspect above.
In the three-dimensional stress field construction method, the device and the storage medium, drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole are obtained, wherein the target area is an area to be constructed into the three-dimensional stress field; obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data; based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point; labeling the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model; and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model. According to the method, rock mass stress data between the measuring points are obtained based on the drilling position data in the target area, the measuring point position data of each measuring point and the rock mass stress data of the measuring points, and a three-dimensional stress field is constructed based on the rock mass stress data of each measuring point, the rock mass stress data between the measuring points and the marked three-dimensional geological model, wherein three-dimensional stress values and direction changes of a plurality of different measuring points are considered, so that the measuring data are abundant, the accuracy degree of the three-dimensional stress field is improved, the dynamic change rule of the rock mass stress can be reflected, and the rock mass stress change in the mining process is monitored in real time.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow diagram of a method of three-dimensional stress field construction in accordance with one embodiment of the application;
FIG. 2 is a flow chart of a method of three-dimensional stress field construction in accordance with another embodiment of the application;
FIG. 3 is a schematic diagram of a three-dimensional stress field constructing apparatus in accordance with one embodiment of the application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. On the contrary, the embodiments of the application include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
FIG. 1 is a flow chart of a three-dimensional stress field construction method according to an embodiment of the present application, as shown in FIG. 1, the method includes:
and 101, acquiring drilling position data of a plurality of drilling holes in a target area, and measuring point position data and measuring point stress data of each measuring point in each drilling hole.
In the embodiment of the present application, the target area is an area where a three-dimensional stress field is to be constructed.
In the embodiment of the application, a plurality of groups of array drilling holes can be respectively drilled along the rock stratum or the penetrating stratum in the target area according to a certain interval and a certain row distance (the interval between the upper part, the lower part, the left part and the right part is 5 m), and drilling position data of each drilling hole can be obtained. In the embodiment of the application, the measuring points are arranged in each group of the drilling holes, and the stress meters are arranged in each measuring point so as to obtain the measuring point position data and the measuring point stress data of each measuring point in the target area through the stress meters, wherein the stress meters of each measuring point can measure and obtain the stress data of two groups of the measuring points, and the measuring angles corresponding to the stress data of the two groups of the measuring points are different.
Specifically, in an embodiment of the present application, the measurement point stress data of each measurement point may include first normal stress data and second normal stress data of each measurement point, where the first normal stress data and the second normal stress data are stress data collected by different stress meters, each of the first normal stress data and the second normal stress data includes 3 normal stresses in different directions, and a drilling coordinate system is formed by forming a 90 degree angle between the 3 normal stresses; the measurement point position data of each measurement point may include a first measurement point direction and a second measurement point direction of each measurement point in the drilling position coordinate system, where the first measurement point direction and the second measurement point direction are direction data corresponding to different stress data, and each positive stress corresponds to 3 different directions, and based on this, each of the first measurement point direction and the second measurement point direction corresponds to direction data including 9 different directions.
Step 102, obtaining geological data of the target area, and constructing an initial three-dimensional geological model of the target area based on the geological data.
In the embodiment of the present application, the geological data of the target area may be a synthetic histogram of the synthetic geology of the target area, a borehole histogram, a ground topography, an uphole map, a seam floor contour, data in a longitude and latitude network, and borehole position data and angle, azimuth and depth data of each borehole in the step 101.
And, in the embodiment of the present application, after the geological data of the target area is obtained, software may be used to directly construct an initial three-dimensional geological model of the target area based on the obtained geological data. For example, in embodiments of the present application, an initial three-dimensional geologic model may be constructed using any of CAD, ANSYS, abaqus, rhinoceros software. The initial three-dimensional geological model and the target area have the same comprehensive geological information such as rock stratum thickness, lithology, dip angle, elevation, drilling position, depth, angle, azimuth and the like.
And 103, obtaining the stress data and the direction data of the measured point rock mass of each measured point based on the measured point position data and the measured point stress data of each measured point.
In the embodiment of the application, after the measurement point position data and the measurement point stress data of each measurement point in the target area are obtained, the measurement point rock mass stress data and the direction data of each measurement point can be obtained based on the measurement point position data and the measurement point stress data of each measurement point.
Specifically, in the embodiment of the present application, the method for obtaining the stress data and the direction data of the measured rock mass of each measuring point based on the measuring point position data and the measuring point stress data of each measuring point may include the following steps:
step 1031, obtaining a first cosine value and a second cosine value between each measuring point and different coordinate axes in the geodetic coordinate system through a first measuring point direction and a second measuring point direction of each measuring point in the drilling position coordinate system based on the relation between the drilling position coordinate system and the geodetic coordinate system;
in the embodiment of the present application, the step 1031 may obtain the first cosine value and the second cosine value between each measuring point and different coordinate axes in the geodetic coordinate system according to the prior art based on the first measuring point direction and the second measuring point direction of each measuring point in the borehole position coordinate system. For example, in an embodiment of the present application, the first cosine value of a measurement point includes:，/>，/>，/>，/>，/>，/>，/>，/>wherein->，/>，/>Cosine values of included angles between each coordinate axis of the drilling position coordinate system of the measuring point and a forward eastern coordinate axis of the geodetic coordinate system are respectively obtained; />，/>，/>Cosine values of included angles between each coordinate axis of the drilling position coordinate system of the measuring point and the north direction of the geodetic coordinate system are respectively obtained; />，/>，/>Cosine values of included angles between each coordinate axis of the drilling position coordinate system of the measuring point and the vertical direction of the geodetic coordinate system are respectively obtained; the second cosine value includes: />，，/>，/>，/>，/>，/>，/>，/>Wherein->，/>，/>Cosine values of forward eastern included angles of coordinate axes of the drilling position coordinate system of the measuring point and the geodetic coordinate system are respectively obtained; />，/>，/>Cosine values of included angles between each coordinate axis of the drilling position coordinate system of the measuring point and the north direction of the geodetic coordinate system are respectively obtained; />，/>，/>And the cosine values of the included angles between each coordinate axis of the drilling position coordinate system of the measuring point and the vertical direction of the geodetic coordinate system are respectively obtained.
Step 1032, obtaining target normal stress data and shear stress data of each measuring point based on the first normal stress data, the second normal stress data, the first cosine value and the second cosine value of each measuring point;
in the embodiment of the application, after the first positive stress data, the second positive stress data, the first cosine value and the second cosine value of each measuring point are obtained, the target positive stress data and the shear stress data of each measuring point can be obtained based on the first positive stress data, the second positive stress data, the first cosine value and the second cosine value of each measuring point.
In an embodiment of the present application, the method for obtaining the target normal stress data and the shear stress data of each measurement point based on the first normal stress data, the second normal stress data, the first cosine value and the second cosine value of each measurement point may include: based on the first positive stress data, the second positive stress data, the first cosine value and the second cosine value of each measuring point, obtaining target positive stress data and shear stress data of each measuring point through a second formula, wherein the second formula is as follows:
wherein, in an embodiment of the application, the first positive stress data of the measuring point comprises、/>、/>The second positive stress data of the measuring point comprises +.>、/>、/>. In the embodiment of the application, the target positive stress data of each measuring point can be obtained through the second formula>，/>，/>And shear stress data->，/>，/>。
And 1033, obtaining the measured point rock mass stress data and the direction data of each measured point based on the target normal stress data and the shear stress data of each measured point.
In an embodiment of the present application, the method for obtaining the measured point rock mass stress data and the direction data of each measured point based on the target normal stress data and the shear stress data of each measured point may include the following steps:
step 1, obtaining the rock mass stress data of each measuring point through a third formula and a fourth formula based on the target normal stress data and the shear stress data of each measuring point, wherein the third formula is as follows:
wherein, the liquid crystal display device comprises a liquid crystal display device,J 1 as the first invariant of the stress tensor,J 2 as a second invariant of the stress tensor,J 3 a third invariant to the stress tensor;
and, a fourth formula is:
。
wherein, in the embodiment of the application, the third formula is obtainedJ 1 ，J 2 ，J 3 After that, willJ 1 ，J 2 ，J 3 Substituted into fourth publicIn the formula, 3 solutions can be obtained as follows，/>，/>The maximum value of the 3 solutions is the maximum horizontal main stress in the stress data of the measured point rock mass, the minimum value of the 3 solutions is the minimum horizontal main stress in the stress data of the measured point rock mass, and the residual solutions are the vertical main stresses in the stress data of the measured point rock mass.
Step 2, obtaining direction data of each measuring point through a fifth formula based on target normal stress data, shear stress data and measuring point rock mass stress data of each measuring point, wherein the fifth formula is as follows:
。
in the embodiment of the application, after the measured point rock mass stress data of each measured point is obtained, the maximum horizontal main stress, the minimum horizontal main stress and the vertical main stress in the measured point rock mass stress data of each measured point are sequentially substituted into the fifth formula to respectively obtain the corresponding directionsl、m、nAnd determining the directions of the maximum horizontal main stress, the minimum horizontal main stress and the vertical main stress as the direction data of each measuring point.
And 104, marking the initial three-dimensional geological model based on the drilling position data, the measuring point rock mass stress data and the direction data of each measuring point to obtain a marked three-dimensional geological model.
In an embodiment of the present application, the method for labeling an initial three-dimensional geological model based on the drilling position data, the measurement point position data of each measurement point, the measurement point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model may include the following steps:
step a, based on the drilling position data and the measuring point position data of each measuring point, carrying out position marking on the measuring point position data of each measuring point in the horizontal and vertical directions of the drilling position data in the initial three-dimensional geological model by utilizing a geological profile data discretization method;
and b, at the position labeling position of each measuring point, carrying out data labeling based on the measuring point rock mass stress data and the direction data of each measuring point to obtain a labeled three-dimensional geological model.
In the embodiment of the application, the data of each measuring point can be displayed in the marked three-dimensional geological model.
And 105, obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
In the embodiment of the application, the measured point rock mass stress data and the direction data of each measured point are marked in the marked three-dimensional geological model, but the rock mass stress data of the rest of the rock mass parts except the measured points are not marked, and the marked three-dimensional geological model is also required to be marked based on the marked rock mass stress data of the rest of the rock mass parts, so that the three-dimensional stress field is constructed. And in the embodiment of the application, rock mass stress data between the measuring points is obtained according to the rock mass stress of the measuring points corresponding to each measuring point by combining the drilling position data and the measuring point position data, so that a stress field between the drilling holes is generated according to the obtained rock mass stress data between the measuring points, and a three-dimensional stress field is obtained.
Specifically, in the embodiment of the present application, the method for obtaining inter-station rock mass stress data based on the drilling position data, the station position data of each station, and the station rock mass stress data may include the following steps:
step 1051, obtaining a distance difference value between adjacent measuring points in the measuring points according to the drilling position data and the measuring point position data of each measuring point;
in one embodiment of the present application, the adjacent measurement points are adjacent measurement points in the same borehole, and/or the adjacent measurement points are measurement points respectively located in two adjacent boreholes in the plurality of boreholes.
And, in an embodiment of the present application, when the conditions of the adjacent measurement points are different, the method for obtaining the distance difference between the adjacent measurement points is also different.
Specifically, in one embodiment of the present application, when the adjacent measurement points are adjacent measurement points in the same borehole, the distance difference between the adjacent measurement points in the same borehole may be obtained according to the measurement point position data of the plurality of measurement points in the same borehole.
In another embodiment of the present application, when the adjacent measuring points are measuring points in two adjacent boreholes, the distance difference between the two adjacent measuring points in the two adjacent boreholes can be obtained according to the measuring point position data in the measuring points in the adjacent boreholes.
Step 1052, obtaining the stress difference value of the measured point rock mass between the adjacent measured points according to the stress data of the measured point rock mass of each measured point;
as an example, taking adjacent measuring points as a first side point and a second measuring point, the measuring point rock mass stress of the first measuring point is 10MPa (Megapascal), and the measuring point rock mass stress of the second measuring point is 5MPa. The difference of the stress of the measured point rock mass between the first measured point and the second measured point is 5MPa.
And 1053, obtaining inter-measuring-point rock mass stress data between adjacent measuring points according to the distance difference value and the measuring-point rock mass stress difference value.
In an embodiment of the present application, the method for obtaining inter-measure-point rock mass stress data between adjacent measure points according to the distance difference value and the measure-point rock mass stress difference value may include: and carrying out interpolation calculation according to linear change according to the distance difference value between the adjacent measuring points and the measuring point rock mass stress difference value, and obtaining the inter-measuring point rock mass stress data of the rock mass at each position between the adjacent measuring points.
And in the embodiment of the application, after the rock mass stress data between the measuring points is obtained through the steps, a three-dimensional stress field can be constructed according to the rock mass stress data between the measuring points, the rock mass stress data between the measuring points and the marked three-dimensional geological model.
It should be noted that, in the embodiment of the present application, the three-dimensional stress field of the target area may be directly constructed through the steps 101 to 105. And along with the promotion of exploitation work, if the obtained data of the target area changes, the three-dimensional stress field obtained by the method also changes dynamically, so that the method can reflect the dynamic change rule of the stress of the underground rock mass, and monitor the change of the stress of the rock mass in the exploitation process in real time.
In the three-dimensional stress field construction method provided by the application, drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole are obtained, wherein the target area is an area to be constructed into a three-dimensional stress field; obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data; based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point; labeling the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model; and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model. According to the method, rock mass stress data between the measuring points are obtained based on the drilling position data in the target area, the measuring point position data of each measuring point and the rock mass stress data of the measuring points, and a three-dimensional stress field is constructed based on the rock mass stress data of each measuring point, the rock mass stress data between the measuring points and the marked three-dimensional geological model, wherein three-dimensional stress values and direction changes of a plurality of different measuring points are considered, so that the measuring data are abundant, the accuracy degree of the three-dimensional stress field is improved, the dynamic change rule of the rock mass stress can be reflected, and the rock mass stress change in the mining process is monitored in real time.
FIG. 2 is a flow chart of a method for constructing a three-dimensional stress field according to another embodiment of the present application, as shown in FIG. 2, the method includes:
step 201, obtaining drilling position data of a plurality of drilling holes in a target area, and measuring point position data and measuring point stress data of each measuring point in each drilling hole.
Step 202, obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data.
And 203, obtaining the stress data and the direction data of the measured point rock mass of each measured point based on the position data and the stress data of each measured point.
And 204, marking the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data, and obtaining a marked three-dimensional geological model.
Step 205, obtaining inter-measuring-point rock mass stress data based on drilling position data, measuring-point position data of each measuring point and measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
The related descriptions of the steps 201 to 205 may refer to the related descriptions in the above embodiments, and the embodiments of the disclosure are not described herein.
Step 206, obtaining initial single point stress data in the target area.
In the embodiment of the present application, the initial single-point stress data in the target area may be the magnitude and direction of an initial vertical main stress, an initial maximum horizontal main stress, and an initial minimum horizontal main stress corresponding to randomly selected positions in the target area. In the embodiment of the application, the ground stress data of the selected position can be obtained by adopting a stress relief method in the target area, the rock mass sample is obtained by punching at the selected position, and the data such as the poisson ratio, the elastic modulus and the like of the rock mass are obtained by carrying out a uniaxial compression test on the rock mass sample, so that the magnitude and the direction of the initial vertical main stress, the initial maximum horizontal main stress and the initial minimum horizontal main stress of the surrounding rock of the selected position are obtained according to the data.
Step 207, acquiring target single-point stress data of the same position of the initial single-point stress data according to the three-dimensional stress field.
In the embodiment of the application, after the initial single-point stress data is acquired, the target single-point stress data at the same position of the initial single-point stress data can be acquired according to the three-dimensional stress field.
Step 208, correcting the three-dimensional stress field based on the initial single point stress data and the target single point stress data.
In an embodiment of the present application, a method for correcting a three-dimensional stress field based on initial single point stress data and target single point stress data may include: and correcting the obtained stress field based on the corresponding numerical value difference and the direction deviation between the initial single-point stress data and the target single-point stress data. In the embodiment of the application, the stress field is corrected by the acquired initial single-point stress data and target single-point stress data, so that the accuracy of the corrected three-dimensional stress field is higher.
In the three-dimensional stress field construction method provided by the application, drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole are obtained, wherein the target area is an area to be constructed into a three-dimensional stress field; obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data; based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point; labeling the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model; and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model. According to the method, rock mass stress data between the measuring points are obtained based on the drilling position data in the target area, the measuring point position data of each measuring point and the rock mass stress data of the measuring points, and a three-dimensional stress field is constructed based on the rock mass stress data of each measuring point, the rock mass stress data between the measuring points and the marked three-dimensional geological model, wherein three-dimensional stress values and direction changes of a plurality of different measuring points are considered, so that the measuring data are abundant, the accuracy degree of the three-dimensional stress field is improved, the dynamic change rule of the rock mass stress can be reflected, and the rock mass stress change in the mining process is monitored in real time.
FIG. 3 is a schematic structural view of a three-dimensional stress field constructing apparatus according to another embodiment of the present application, as shown in FIG. 3, the apparatus comprising:
the first obtaining module 301 is configured to obtain drilling position data of a plurality of drilling holes in a target area, and measurement point position data and measurement point stress data of measurement points in each drilling hole, where the target area is an area where a three-dimensional stress field is to be constructed;
a second obtaining module 302, configured to obtain geological data of the target area, and construct an initial three-dimensional geological model of the target area based on the geological data;
the processing module 303 is configured to obtain measurement point rock mass stress data and direction data of each measurement point based on the position data and measurement point stress data of each measurement point;
the labeling module 304 is configured to label the initial three-dimensional geological model based on the drilling position data, the measurement point position data of each measurement point, the measurement point rock mass stress data and the direction data, and obtain a labeled three-dimensional geological model;
the construction module 305 is configured to obtain inter-station rock mass stress data based on the drilling position data, the station position data of each station, and the station rock mass stress data, and construct a three-dimensional stress field based on the station rock mass stress data of each station, the inter-station rock mass stress data, and the labeled three-dimensional geological model.
Wherein, in the embodiment of the application, the device is further used for:
obtaining initial single-point stress data in a target area;
acquiring target single-point stress data of the same position of the initial single-point stress data according to the three-dimensional stress field;
the three-dimensional stress field is modified based on the initial single point stress data and the target single point stress data.
In the three-dimensional stress field construction device provided by the application, drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole are obtained, wherein the target area is an area to be constructed into a three-dimensional stress field; obtaining geological data of a target area, and constructing an initial three-dimensional geological model of the target area based on the geological data; based on the measuring point position data and the measuring point stress data of each measuring point, obtaining measuring point rock mass stress data and direction data of each measuring point; labeling the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data to obtain a labeled three-dimensional geological model; and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model. According to the method, rock mass stress data between the measuring points are obtained based on the drilling position data in the target area, the measuring point position data of each measuring point and the rock mass stress data of the measuring points, and a three-dimensional stress field is constructed based on the rock mass stress data of each measuring point, the rock mass stress data between the measuring points and the marked three-dimensional geological model, wherein three-dimensional stress values and direction changes of a plurality of different measuring points are considered, so that the measuring data are abundant, the accuracy degree of the three-dimensional stress field is improved, the dynamic change rule of the rock mass stress can be reflected, and the rock mass stress change in the mining process is monitored in real time.
In order to implement the above embodiment, the present application also proposes a computer storage medium.
The computer storage medium provided by the embodiment of the application stores an executable program; the executable program, when executed by a processor, is capable of implementing the method as shown in any one of figures 1 to 2.
In order to implement the above embodiment, the present application also proposes a computer device.
The computer equipment provided by the embodiment of the application comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, is capable of implementing the method as shown in any one of fig. 1 to 2.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. A method of constructing a three-dimensional stress field, comprising:
acquiring drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole, wherein the target area is an area of a three-dimensional stress field to be constructed, and the measuring point position data of each measuring point comprises a first measuring point direction and a second measuring point direction of each measuring point in a drilling hole position coordinate system; the measuring point stress data of each measuring point comprises first positive stress data and second positive stress data of each measuring point;
obtaining geological data of the target area, and constructing an initial three-dimensional geological model of the target area based on the geological data;
based on the relation between the drilling position coordinate system and the geodetic coordinate system, a first cosine value and a second cosine value between different coordinate axes of each measuring point and the geodetic coordinate system are obtained through a first measuring point direction and a second measuring point direction of each measuring point in the drilling position coordinate system, based on the first positive stress data, the second positive stress data, the first cosine value and the second cosine value of each measuring point, target positive stress data and shear stress data of each measuring point are obtained, and based on the target positive stress data and the shear stress data of each measuring point, measuring point rock mass stress data and direction data of each measuring point are obtained;
labeling the initial three-dimensional geological model based on the drilling position data, the measuring point rock mass stress data and the direction data of each measuring point to obtain a labeled three-dimensional geological model;
and obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
2. The method of claim 1, wherein the labeling the initial three-dimensional geologic model based on the borehole position data, the site rock stress data, and the direction data for each site, results in a labeled three-dimensional geologic model, comprising:
based on the drilling position data and the measuring point position data of each measuring point, performing position marking on the measuring point position data of each measuring point in the horizontal and vertical directions of the drilling position data in the initial three-dimensional geological model by using a geological profile data discretization method;
and at the position labeling position of each measuring point, carrying out data labeling based on the measuring point rock mass stress data and the direction data of each measuring point to obtain a labeled three-dimensional geological model.
3. The method of claim 1, wherein the obtaining inter-site rock mass stress data based on the borehole position data, the site position data for each site, and the site rock mass stress data comprises:
acquiring a distance difference value between adjacent measuring points in the measuring points according to the drilling position data and the measuring point position data of each measuring point;
according to the measured point rock mass stress data of each measured point, obtaining a measured point rock mass stress difference value between the adjacent measured points;
and acquiring inter-measuring-point rock mass stress data between adjacent measuring points according to the distance difference value and the measuring-point rock mass stress difference value.
4. The method of claim 3, wherein,
the adjacent measurement points are adjacent measurement points in the same borehole, and/or,
the adjacent measuring points are measuring points respectively positioned in two adjacent drilling holes in the plurality of drilling holes.
5. The method of claim 1, wherein the method further comprises:
acquiring initial single-point stress data in the target area;
acquiring target single-point stress data of the same position of the initial single-point stress data according to the three-dimensional stress field;
and correcting the three-dimensional stress field based on the initial single point stress data and the target single point stress data.
6. A three-dimensional stress field constructing apparatus, comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring drilling position data of a plurality of drilling holes in a target area and measuring point position data and measuring point stress data of each measuring point in each drilling hole, the target area is an area for constructing a three-dimensional stress field, and the measuring point position data of each measuring point comprises a first measuring point direction and a second measuring point direction of each measuring point in a drilling hole position coordinate system; the measuring point stress data of each measuring point comprises first positive stress data and second positive stress data of each measuring point;
the second acquisition module is used for acquiring geological data of the target area and constructing an initial three-dimensional geological model of the target area based on the geological data;
the processing module is used for obtaining a first cosine value and a second cosine value between different coordinate axes of each measuring point and the geodetic coordinate system through a first measuring point direction and a second measuring point direction of each measuring point in the drilling position coordinate system based on the relation between the drilling position coordinate system and the geodetic coordinate system, obtaining target normal stress data and shear stress data of each measuring point based on the first normal stress data, the second normal stress data, the first cosine value and the second cosine value of each measuring point, and obtaining measuring point rock stress data and direction data of each measuring point based on the target normal stress data and the shear stress data of each measuring point;
the marking module is used for marking the initial three-dimensional geological model based on the drilling position data, the measuring point position data of each measuring point, the measuring point rock mass stress data and the direction data, and obtaining a marked three-dimensional geological model;
the construction module is used for obtaining inter-measuring-point rock mass stress data based on the drilling position data, the measuring-point position data of each measuring point and the measuring-point rock mass stress data, and constructing and obtaining a three-dimensional stress field based on the measuring-point rock mass stress data of each measuring point, the inter-measuring-point rock mass stress data and the marked three-dimensional geological model.
7. The apparatus of claim 6, wherein the apparatus is further configured to:
acquiring initial single-point stress data in the target area;
acquiring target single-point stress data of the same position of the initial single-point stress data according to the three-dimensional stress field;
and correcting the three-dimensional stress field based on the initial single point stress data and the target single point stress data.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of claims 1-6 when the program is executed.
9. A computer storage medium, wherein the computer storage medium stores computer-executable instructions; the computer-executable instructions, when executed by a processor, are capable of implementing the method of any of claims 1-6.
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