CN112507575A - Fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation - Google Patents
Fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation Download PDFInfo
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Abstract
The invention belongs to the technical field of grouting evaluation, and discloses a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation, wherein a fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation comprises the following steps: the device comprises a geological information acquisition module, a geological information analysis module, a FLAC3D preprocessing module, a central control module, a geological model construction module, a stress data acquisition module, a data input module, a stress characteristic simulation module, a plastic flow analysis module, a plastic damage analysis module, a displacement curve acquisition module and a grouting evaluation module. According to the invention, the physical and mechanical properties of the grouted rock stratum are simulated through the FLAC3D three-dimensional geological model, the three-dimensional structure stress characteristic simulation and the plastic flow analysis of the grouting area are carried out, the evaluation of the fault grouting reinforcement effect can be realized, and the evaluation accuracy is better. The method is simple to operate, and the fault grouting reinforcement effect can be intuitively and reasonably evaluated.
Description
Technical Field
The invention belongs to the technical field of grouting evaluation, and particularly relates to a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation.
Background
At present: the fault grouting reinforcement is that grout is extruded or permeated into a crack under the action of a pump pressure, the grout is filled into the crack in a solid form and is solidified with a rock body after being solidified, the filled materials form a new network skeleton structure in the rock body, the inner side of the network skeleton is a uniform and compact rock body, the filled materials forming the network skeleton have better elastic bonding strength, and under the same stress action, the rock body strength reaches the limit state when the grout is not injected; and the grouted rock mass is in a stable state, and the self-bearing capacity is improved. Therefore, the grouting reinforcement improves the macroscopic mechanical property of the rock mass, improves the compactness and strength of the rock mass, and further enhances the ductility characteristic of the rock mass; the deformation resistance of the rock mass is enhanced, and the rock mass can keep enough strength under the condition of large deformation. The method for evaluating the grouting effect mainly comprises a drilling (pressing) water pumping inspection method, a water quantity comparison method before and after grouting, a sampling inspection method and the like, most of the methods are complex in actual evaluation, large in engineering quantity, large in evaluation influence factor, and incapable of reasonably and intuitively evaluating the grouting effect.
Through the above analysis, the problems and defects of the prior art are as follows: the existing grouting effect evaluation method is complex in actual evaluation, large in engineering quantity, more in evaluation influence factors and incapable of evaluating the grouting effect reasonably and visually.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation.
The invention is realized in such a way, and provides a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation, which comprises the following steps:
acquiring information of a grouting area by using an information acquisition program through a geological information acquisition module; analyzing the collected information by a geological information analysis module by using an information analysis program;
(1.1) obtaining topographic information through stratum depth and geological information;
(1.2) drawing a topographic contour map by analyzing the topographic information by using the topographic data;
(1.3) acquiring control points, microcell bodies and groups of grouting areas in grouting information, and fusing the grouting information;
(1.4) combining the drawn topographic contour map with grouting information to obtain a topographic map of a grouting area;
secondly, preprocessing FLAC3D software by using a FLAC3D preprocessing program through a FLAC3D preprocessing module; the central control module controls each module to normally operate by using the main control machine;
the FLAC3D software preprocessing is carried out by using a FLAC3D preprocessing program through a FLAC3D preprocessing module, and the method comprises the following steps:
(1) storing the terrain contour map as a first format file;
(2) after the first format file is converted into a coordinate point document, carrying out interpolation on coordinates in the coordinate point document, and generating a point cloud file;
(3) after a three-dimensional geometric model is obtained according to the point cloud file, a geometric model file is generated;
(4) meshing the three-dimensional geometric model according to the geometric model file, and generating a finite element model file;
(5) converting the finite element model file into an FLAC3D grid file, thereby realizing the pretreatment of the FLAC3D software;
thirdly, constructing a FLAC3D three-dimensional geological model by a geological model construction module according to the analysis result by utilizing a geological model construction program; the stress data acquisition module acquires stress data by utilizing a stress data acquisition program;
the construction of the FLAC3D three-dimensional geological model by the geological model construction module by utilizing a geological model construction program according to an analysis result comprises the following steps:
1) importing the FLAC3D grid file into a FLAC3D software database;
2) generating a FLAC3D modeling command stream according to a grammar rule of a FLAC3D program, and storing the command stream as a modeling data file in a text format;
3) opening FLAC3D software, calling a file command, calling a modeling data file, and generating a FLAC3D three-dimensional geological model;
step four, inputting the acquired acceptance data into the FLAC3D three-dimensional geological model by using a data input program through a data input module; carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model by utilizing a stress characteristic simulation program through a stress characteristic simulation module;
step five, performing plastic flow analysis in the FLAC3D three-dimensional geological model by using a plastic flow analysis program through a plastic flow analysis module; analyzing plastic damage in the FLAC3D three-dimensional geological model by using a plastic damage analysis program and combining a plastic flow analysis result through a plastic damage analysis module;
step six, acquiring displacement points by a displacement curve acquisition module through a displacement curve acquisition program, and drawing a displacement curve; and performing rock stratum grouting reinforcement evaluation by a grouting evaluation module by using a grouting evaluation program.
Further, in the first step, the information of the grouting area includes: formation depth, geological information, and grouting information.
Further, in the step (1.2), the drawing of the topographic contour map using the topographic data by analyzing the topographic information includes:
and acquiring terrain elevation data in the terrain information, and drawing a contour map of the terrain based on the acquired terrain elevation data.
Further, the obtaining of the terrain elevation data in the terrain information and the drawing of the contour map of the terrain based on the obtained terrain elevation data includes:
firstly, storing acquired terrain information as a matrix variable GROUNDMAP; the matrix variable GROUNDMAP comprises a set of sub-variables all of which have a size of m x n
Respectively consisting of (x, y, z) values for all points in the terrain elevation dataset D, where m, n are the length and width of the terrain map, respectively;
secondly, extracting elevation values from the matrix variable GROUNDMAP, and drawing a contour map of the terrain.
Further, in step (1.3), the control points, the microcells and the groups of the grouting areas comprise: the number corresponding to each microcell control point, the number composition of each micromodel to be subdivided in the three-dimensional space, the ratio of the size of the unit body in the three-dimensional space, and the group to which the unit body belongs.
Further, in step 2), the generating a FLAC3D modeling command stream includes: and utilizing SQL sentences to connect operators and equivalently connect queries from the database through character strings to generate a FLAC3D modeling command stream.
Further, in the third step, the performing, by the stress characteristic simulation module, stress simulation of the rock stratum in the FLAC3D three-dimensional geological model by using a stress characteristic simulation program includes: and carrying out loading simulation on the FLAC3D three-dimensional geological model, and outputting model plastic damage information and displacement point change information.
Another object of the present invention is to provide a fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation, which implements the fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation, the fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation including:
the device comprises a geological information acquisition module, a geological information analysis module, a FLAC3D preprocessing module, a central control module, a geological model construction module, a stress data acquisition module, a data input module, a stress characteristic simulation module, a plastic flow analysis module, a plastic damage analysis module, a displacement curve acquisition module and a grouting evaluation module.
The geological information acquisition module is connected with the central control module and is used for acquiring information of the grouting area through an information acquisition program;
the geological information analysis module is connected with the central control module and is used for analyzing the collected information through an information analysis program;
the FLAC3D preprocessing module is connected with the central control module and is used for preprocessing FLAC3D software through a FLAC3D preprocessing program;
the central control module is connected with the geological information acquisition module, the geological information analysis module, the FLAC3D preprocessing module, the geological model construction module, the stress data acquisition module, the data input module, the stress characteristic simulation module, the plastic flow analysis module, the plastic damage analysis module, the displacement curve acquisition module and the grouting evaluation module and is used for controlling the modules to normally operate through the main control machine;
the geological model building module is connected with the central control module and used for building the FLAC3D three-dimensional geological model according to the analysis result through a geological model building program;
the stress data acquisition module is connected with the central control module and is used for acquiring stress data through a stress data acquisition program;
the data input module is connected with the central control module and used for inputting the acquired acceptance data into the FLAC3D three-dimensional geological model through a data input program;
the stress characteristic simulation module is connected with the central control module and used for carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model through a stress characteristic simulation program;
the plastic flow analysis module is connected with the central control module and is used for performing plastic flow analysis in the FLAC3D three-dimensional geological model through a plastic flow analysis program;
the plastic damage analysis module is connected with the central control module and is used for analyzing plastic damage in the FLAC3D three-dimensional geological model by combining a plastic damage analysis program with a plastic flow analysis result;
the displacement curve acquisition module is connected with the central control module and used for acquiring displacement points through a displacement curve acquisition program and drawing a displacement curve;
and the grouting evaluation module is connected with the central control module and is used for performing rock stratum grouting reinforcement evaluation through a grouting evaluation program.
Another object of the present invention is to provide a computer program product stored on a computer readable medium, which includes a computer readable program, when the computer program product is executed on an electronic device, the computer program product provides a user input interface to implement the method for evaluating the effect of fault grouting reinforcement based on FLAC3D numerical simulation.
Another object of the present invention is to provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to execute the method for evaluating the effectiveness of fault grouting reinforcement based on FLAC3D numerical simulation.
By combining all the technical schemes, the invention has the advantages and positive effects that: according to the invention, the physical and mechanical properties of the grouted rock stratum are simulated through the FLAC3D three-dimensional geological model, the three-dimensional structure stress characteristic simulation and the plastic flow analysis of the grouting area are carried out, the evaluation of the fault grouting reinforcement effect can be realized, and the evaluation accuracy is better. The method is simple to operate, and the fault grouting reinforcement effect can be intuitively and reasonably evaluated. The method can be used for rapidly drawing the terrain contour map, rapidly determining the terrain characteristics, reducing the complexity of terrain analysis and improving the overall evaluation efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a block diagram of a fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation according to an embodiment of the present invention.
Fig. 2 is a flowchart of a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation according to an embodiment of the present invention.
Fig. 3 is a flowchart of analyzing collected information by a geological information analysis module using an information analysis program according to an embodiment of the present invention.
FIG. 4 is a flow chart illustrating FLAC3D software pre-processing by the FLAC3D pre-processing module using the FLAC3D pre-processor, according to an embodiment of the present invention.
Fig. 5 is a flowchart for constructing a FLAC3D three-dimensional geological model according to a FLAC3D mesh file according to an embodiment of the present invention.
In fig. 1: 1. a geological information acquisition module; 2. a geological information analysis module; 3. a FLAC3D preprocessing module; 4. a central control module; 5. a geological model building module; 6. a stress data acquisition module; 7. a data input module; 8. a stress characteristic simulation module; 9. a plastic flow analysis module; 10. a plastic failure analysis module; 11. a displacement curve acquisition module; 12. and a grouting evaluation module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides a fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation provided by the embodiment of the present invention includes:
s101, acquiring information of a grouting area by using an information acquisition program through a geological information acquisition module; analyzing the collected information by a geological information analysis module by using an information analysis program;
s102, utilizing a FLAC3D preprocessing program to preprocess FLAC3D software through a FLAC3D preprocessing module; the central control module controls each module to normally operate by using the main control machine;
s103, constructing a FLAC3D three-dimensional geological model by a geological model construction module according to an analysis result by utilizing a geological model construction program; the stress data acquisition module acquires stress data by utilizing a stress data acquisition program;
s104, inputting the acquired acceptance data into the FLAC3D three-dimensional geological model by using a data input program through a data input module; carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model by utilizing a stress characteristic simulation program through a stress characteristic simulation module;
s105, performing plastic flow analysis in the FLAC3D three-dimensional geological model by using a plastic flow analysis program through a plastic flow analysis module; analyzing plastic damage in the FLAC3D three-dimensional geological model by using a plastic damage analysis program and combining a plastic flow analysis result through a plastic damage analysis module;
s106, acquiring displacement points by using a displacement curve acquisition program through a displacement curve acquisition module, and drawing a displacement curve; and performing rock stratum grouting reinforcement evaluation by a grouting evaluation module by using a grouting evaluation program.
As shown in fig. 2, the fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation according to the embodiment of the present invention includes:
the device comprises a geological information acquisition module 1, a geological information analysis module 2, a FLAC3D preprocessing module 3, a central control module 4, a geological model construction module 5, a stress data acquisition module 6, a data input module 7, a stress characteristic simulation module 8, a plastic flow analysis module 9, a plastic damage analysis module 10, a displacement curve acquisition module 11 and a grouting evaluation module 12.
The geological information acquisition module 1 is connected with the central control module 4 and is used for acquiring information of a grouting area through an information acquisition program;
the geological information analysis module 2 is connected with the central control module 4 and is used for analyzing the collected information through an information analysis program;
the FLAC3D preprocessing module 3 is connected with the central control module 4 and is used for preprocessing FLAC3D software through a FLAC3D preprocessing program;
the central control module 4 is connected with the geological information acquisition module 1, the geological information analysis module 2, the FLAC3D preprocessing module 3, the geological model construction module 5, the stress data acquisition module 6, the data input module 7, the stress characteristic simulation module 8, the plastic flow analysis module 9, the plastic damage analysis module 10, the displacement curve acquisition module 11 and the grouting evaluation module 12 and is used for controlling the modules to normally operate through a main control computer;
the geological model building module 5 is connected with the central control module 4 and used for building an FLAC3D three-dimensional geological model according to the analysis result through a geological model building program;
the stress data acquisition module 6 is connected with the central control module 4 and is used for acquiring stress data through a stress data acquisition program;
the data input module 7 is connected with the central control module 4 and used for inputting the acquired acceptance data into the FLAC3D three-dimensional geological model through a data input program;
the stress characteristic simulation module 8 is connected with the central control module 4 and used for carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model through a stress characteristic simulation program;
the plastic flow analysis module 9 is connected with the central control module 4 and is used for performing plastic flow analysis in the FLAC3D three-dimensional geological model through a plastic flow analysis program;
the plastic damage analysis module 10 is connected with the central control module 4 and is used for analyzing plastic damage in the FLAC3D three-dimensional geological model by combining a plastic damage analysis program with a plastic flow analysis result;
the displacement curve acquisition module 11 is connected with the central control module 4 and used for acquiring displacement points through a displacement curve acquisition program and drawing a displacement curve;
and the grouting evaluation module 12 is connected with the central control module 4 and is used for performing rock stratum grouting reinforcement evaluation through a grouting evaluation program.
In step S101, the information of the grouting area provided in the embodiment of the present invention includes: formation depth, geological information, and grouting information.
The technical solution of the present invention is further illustrated by the following specific examples.
Example 1
The method for evaluating the reinforcement effect of fault grouting based on FLAC3D numerical simulation provided by the embodiment of the invention is shown in FIG. 1, and as a preferred embodiment, as shown in FIG. 3, the method for analyzing the collected information by using an information analysis program through a geological information analysis module provided by the embodiment of the invention comprises the following steps:
s201, obtaining topographic information through stratum depth and geological information;
s202, by analyzing terrain information, drawing a terrain contour map by using terrain data;
s203, acquiring control points, microcells and groups of grouting areas in grouting information, and fusing the grouting information;
and S204, combining the drawn topographic contour map with the grouting information to obtain a topographic map of the grouting area.
In step S202, the analyzing the terrain information and drawing the terrain contour map using the terrain data according to the embodiment of the present invention includes:
storing the acquired terrain information as a matrix variable GROUNDMAP; the matrix variable GROUNDMAP comprises a set of sub-variables all of which have a size of m x n
Respectively consisting of (x, y, z) values for all points in the terrain elevation dataset D, where m, n are the length and width of the terrain map, respectively; and extracting elevation values from the matrix variable GROUNDMAP, and drawing a contour map of the terrain.
In step S203, the control points, the microcells, and the groups in the grouting area provided in the embodiment of the present invention include: the number corresponding to each microcell control point, the number composition of each micromodel to be subdivided in the three-dimensional space, the ratio of the size of the unit body in the three-dimensional space, and the group to which the unit body belongs.
Example 2
The method for evaluating the fault grouting reinforcement effect based on FLAC3D numerical simulation provided by the embodiment of the invention is shown in FIG. 1, and as a preferred embodiment, as shown in FIG. 4, the method for preprocessing the FLAC3D software by using a FLAC3D preprocessing program through a FLAC3D preprocessing module provided by the embodiment of the invention comprises the following steps:
s301, storing the terrain contour map as a first format file;
s302, after converting the first format file into a coordinate point document, interpolating coordinates in the coordinate point document, and generating a point cloud file;
s303, acquiring a three-dimensional geometric model according to the point cloud file, and generating a geometric model file;
s304, performing mesh division on the three-dimensional geometric model according to the geometric model file, and generating a finite element model file;
s305, converting the finite element model file into a FLAC3D grid file, and accordingly preprocessing the FLAC3D software.
Example 3
As shown in fig. 1, the method for evaluating a fault grouting reinforcement effect based on FLAC3D numerical simulation according to the embodiment of the present invention is, as a preferred embodiment, in step S103, a geological model building module that uses a geological model building program to build a FLAC3D three-dimensional geological model according to an analysis result, including: and importing the FLAC3D grid file into FLAC3D software, and constructing the FLAC3D three-dimensional geological model according to the FLAC3D grid file.
As shown in fig. 5, the constructing of the FLAC3D three-dimensional geological model according to the FLAC3D mesh file provided by the embodiment of the present invention includes:
s401, importing the FLAC3D grid file into a FLAC3D software database;
s402, generating a FLAC3D modeling command stream according to the grammar rule of the FLAC3D program, and storing the command stream as a modeling data file in a text format;
and S403, opening the FLAC3D software, calling a file command, calling a modeling data file, and generating the FLAC3D three-dimensional geological model.
In step S402, the generating FLAC3D modeling command stream provided in the embodiment of the present invention includes: and utilizing SQL sentences to connect operators and equivalently connect queries from the database through character strings to generate a FLAC3D modeling command stream.
Example 4
As shown in fig. 1, the method for evaluating the reinforcement effect of grouting of a fault based on FLAC3D numerical simulation provided in the embodiment of the present invention is a preferred embodiment, and the method for performing stress simulation of a rock formation in a FLAC3D three-dimensional geological model by using a stress characteristic simulation program through a stress characteristic simulation module provided in the embodiment of the present invention includes: and carrying out loading simulation on the FLAC3D three-dimensional geological model, and outputting model plastic damage information and displacement point change information.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, can be implemented in a computer program product that includes one or more computer instructions. When loaded or executed on a computer, cause the flow or functions according to embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (10)
1. A fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation is characterized by comprising the following steps of:
acquiring information of a grouting area by using an information acquisition program through a geological information acquisition module; analyzing the collected information by a geological information analysis module by using an information analysis program;
(1.1) obtaining topographic information through stratum depth and geological information;
(1.2) drawing a topographic contour map by analyzing the topographic information by using the topographic data;
(1.3) acquiring control points, microcell bodies and groups of grouting areas in grouting information, and fusing the grouting information;
(1.4) combining the drawn topographic contour map with grouting information to obtain a topographic map of a grouting area;
secondly, preprocessing FLAC3D software by using a FLAC3D preprocessing program through a FLAC3D preprocessing module; the central control module controls each module to normally operate by using the main control machine;
the FLAC3D software preprocessing is carried out by using a FLAC3D preprocessing program through a FLAC3D preprocessing module, and the method comprises the following steps:
(1) storing the terrain contour map as a first format file;
(2) after the first format file is converted into a coordinate point document, carrying out interpolation on coordinates in the coordinate point document, and generating a point cloud file;
(3) after a three-dimensional geometric model is obtained according to the point cloud file, a geometric model file is generated;
(4) meshing the three-dimensional geometric model according to the geometric model file, and generating a finite element model file;
(5) converting the finite element model file into an FLAC3D grid file, thereby realizing the pretreatment of the FLAC3D software;
thirdly, constructing a FLAC3D three-dimensional geological model by a geological model construction module according to the analysis result by utilizing a geological model construction program; the stress data acquisition module acquires stress data by utilizing a stress data acquisition program;
the construction of the FLAC3D three-dimensional geological model by the geological model construction module by utilizing a geological model construction program according to an analysis result comprises the following steps:
1) importing the FLAC3D grid file into a FLAC3D software database;
2) generating a FLAC3D modeling command stream according to a grammar rule of a FLAC3D program, and storing the command stream as a modeling data file in a text format;
3) opening FLAC3D software, calling a file command, calling a modeling data file, and generating a FLAC3D three-dimensional geological model;
step four, inputting the acquired acceptance data into the FLAC3D three-dimensional geological model by using a data input program through a data input module; carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model by utilizing a stress characteristic simulation program through a stress characteristic simulation module;
step five, performing plastic flow analysis in the FLAC3D three-dimensional geological model by using a plastic flow analysis program through a plastic flow analysis module; analyzing plastic damage in the FLAC3D three-dimensional geological model by using a plastic damage analysis program and combining a plastic flow analysis result through a plastic damage analysis module;
step six, acquiring displacement points by a displacement curve acquisition module through a displacement curve acquisition program, and drawing a displacement curve; and performing rock stratum grouting reinforcement evaluation by a grouting evaluation module by using a grouting evaluation program.
2. The method for evaluating the strengthening effect of fault grouting based on FLAC3D numerical simulation as claimed in claim 1, wherein in the first step, the information of the grouting area comprises: formation depth, geological information, and grouting information.
3. The method for evaluating the grouting reinforcement effect of the fault based on FLAC3D numerical simulation as claimed in claim 1, wherein in the step (1.2), the step of using the terrain data to draw the terrain contour map by analyzing the terrain information comprises the following steps:
and acquiring terrain elevation data in the terrain information, and drawing a contour map of the terrain based on the acquired terrain elevation data.
4. The method for evaluating the grouting reinforcement effect of the fault based on the FLAC3D numerical simulation as claimed in claim 3, wherein the step of obtaining terrain elevation data in the terrain information and the step of drawing a contour map of the terrain based on the obtained terrain elevation data comprises the steps of:
firstly, storing acquired terrain information as a matrix variable GROUNDMAP; the matrix variable GROUNDMAP comprises a set of sub-variables all of which have a size of m x n
Respectively consisting of (x, y, z) values for all points in the terrain elevation dataset D, where m, n are the length and width of the terrain map, respectively;
secondly, extracting elevation values from the matrix variable GROUNDMAP, and drawing a contour map of the terrain.
5. The method for evaluating the strengthening effect of fault grouting based on FLAC3D numerical simulation as claimed in claim 1, wherein in the step (1.3), the control points, the microcells and the groups of the grouting area comprise: the number corresponding to each microcell control point, the number composition of each micromodel to be subdivided in the three-dimensional space, the ratio of the size of the unit body in the three-dimensional space, and the group to which the unit body belongs.
6. The method for evaluating the effect of fault grouting reinforcement based on FLAC3D numerical simulation as claimed in claim 1, wherein in the step 2), the generating of the FLAC3D modeling command stream comprises: and utilizing SQL sentences to connect operators and equivalently connect queries from the database through character strings to generate a FLAC3D modeling command stream.
7. The method for evaluating the grouting reinforcement effect of the fault based on the FLAC3D numerical simulation of claim 1, wherein in the third step, the stress simulation of the rock stratum in the FLAC3D three-dimensional geological model is performed by the stress characteristic simulation module by using a stress characteristic simulation program, and the method comprises the following steps: and carrying out loading simulation on the FLAC3D three-dimensional geological model, and outputting model plastic damage information and displacement point change information.
8. A fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation for implementing the fault grouting reinforcement effect evaluation method based on FLAC3D numerical simulation as claimed in claims 1 to 7, wherein the fault grouting reinforcement effect evaluation system based on FLAC3D numerical simulation comprises:
the device comprises a geological information acquisition module, a geological information analysis module, a FLAC3D preprocessing module, a central control module, a geological model construction module, a stress data acquisition module, a data input module, a stress characteristic simulation module, a plastic flow analysis module, a plastic damage analysis module, a displacement curve acquisition module and a grouting evaluation module;
the geological information acquisition module is connected with the central control module and is used for acquiring information of the grouting area through an information acquisition program;
the geological information analysis module is connected with the central control module and is used for analyzing the collected information through an information analysis program;
the FLAC3D preprocessing module is connected with the central control module and is used for preprocessing FLAC3D software through a FLAC3D preprocessing program;
the central control module is connected with the geological information acquisition module, the geological information analysis module, the FLAC3D preprocessing module, the geological model construction module, the stress data acquisition module, the data input module, the stress characteristic simulation module, the plastic flow analysis module, the plastic damage analysis module, the displacement curve acquisition module and the grouting evaluation module and is used for controlling the modules to normally operate through the main control machine;
the geological model building module is connected with the central control module and used for building the FLAC3D three-dimensional geological model according to the analysis result through a geological model building program;
the stress data acquisition module is connected with the central control module and is used for acquiring stress data through a stress data acquisition program;
the data input module is connected with the central control module and used for inputting the acquired acceptance data into the FLAC3D three-dimensional geological model through a data input program;
the stress characteristic simulation module is connected with the central control module and used for carrying out rock stratum stress simulation in the FLAC3D three-dimensional geological model through a stress characteristic simulation program;
the plastic flow analysis module is connected with the central control module and is used for performing plastic flow analysis in the FLAC3D three-dimensional geological model through a plastic flow analysis program;
the plastic damage analysis module is connected with the central control module and is used for analyzing plastic damage in the FLAC3D three-dimensional geological model by combining a plastic damage analysis program with a plastic flow analysis result;
the displacement curve acquisition module is connected with the central control module and used for acquiring displacement points through a displacement curve acquisition program and drawing a displacement curve;
and the grouting evaluation module is connected with the central control module and is used for performing rock stratum grouting reinforcement evaluation through a grouting evaluation program.
9. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for implementing a method for fault grouting reinforcement effect evaluation based on FLAC3D numerical simulation as claimed in any one of claims 1 to 7 when executed on an electronic device.
10. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method for evaluating a consolidation effect of a fault grouting based on FLAC3D numerical simulation as claimed in any one of claims 1 to 7.
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