Slope stability analysis method, apparatus and electronic equipment based on finite element model

Abstract

This application discloses a slope stability analysis method, apparatus, and electronic equipment based on a finite element model. The method includes: improving the finite element model based on the relationship between soil shear strength parameters to obtain an improved finite element model; optimizing the initial strength reduction factor based on the improved finite element model to obtain the minimum safety factor of the slope; and performing slope stability analysis based on the minimum safety factor. By obtaining the relationship between soil shear strength parameters and establishing the connection between soil shear strength parameters and other parameters, the method enables the use of dynamically changing soil shear strength parameters during data processing, thereby improving the accuracy of the finite element model data processing results. Furthermore, the method analyzes slope stability using the strength reduction factor, thus realizing a data-driven representation of the roadbed slope stability analysis results and improving the reliability of the roadbed slope stability analysis results.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering technology, and in particular to a slope stability analysis method, apparatus, and electronic equipment based on a finite element model. Background Technology

[0002] In practical engineering, the soil inside the roadbed is simultaneously subjected to wet-dry cycles and vertical loads such as the self-weight of the overlying soil and pavement loads. These factors affect the shear strength parameters of the soil, thereby influencing the stability of the roadbed slope. Therefore, when establishing a finite element model of the roadbed slope, it is necessary to comprehensively consider the effects of wet-dry cycles and overlying loads to improve the accuracy of the roadbed slope stability analysis.

[0003] ABAQUS is a widely used finite element numerical analysis software in geotechnical engineering and road engineering, boasting advantages such as high computational efficiency and accurate results, making it well-suited for slope stability analysis. However, it has some shortcomings in defining soil material parameters. For instance, when setting certain material parameters, the commonly used ABAQUS model treats the soil as an ideal material, failing to account for the dynamic changes of material parameters in engineering applications.

[0004] Therefore, in the existing technology, when performing slope stability analysis on soil using the finite element model, there is a problem of low accuracy in the analysis results of roadbed slope stability due to the failure to consider the changes in soil shear strength parameters. Summary of the Invention

[0005] In view of this, it is necessary to provide a slope stability analysis method, device and electronic equipment based on the finite element model to solve the problem of low accuracy of roadbed slope stability analysis results due to the failure to consider the variation of soil shear strength parameters in the existing technology.

[0006] To address the above problems, this invention provides a slope stability analysis method based on a finite element model, comprising:

[0007] Obtain the relationship between soil shear strength parameters;

[0008] The finite element model was improved based on the relationship of soil shear strength parameters, resulting in an improved finite element model.

[0009] Set the initial strength reduction factor;

[0010] The initial strength reduction factor is optimized based on the improved finite element model to obtain the minimum safety factor of the slope, and the slope stability analysis is performed based on the minimum safety factor of the slope.

[0011] Furthermore, the relationship between soil shear strength parameters is obtained, including:

[0012] By conducting multiple wet-dry cycle tests under loaded conditions, the shear strength parameters of the soil under various test conditions, as well as the corresponding test index data, were obtained.

[0013] By fitting a function to the shear strength parameters and the corresponding test index data, the relationship between the soil shear strength parameters is obtained.

[0014] Furthermore, the test index data include overlying load data, wet-dry cycle count data, and wet-dry cycle moisture content lower limit data.

[0015] Furthermore, the shear strength parameters of soil include cohesion and the angle of internal friction; the formula for calculating cohesion is:

[0016] c = 0.044P + 4.82e -0.29N -1.66ω + 60.78

[0017] The formula for calculating the angle of internal friction is:

[0018]

[0019] Where c represents the cohesion of the roadbed slope soil. ω is the internal friction angle of the roadbed slope soil, P is the overburden load, N is the number of wet-dry cycles, and ω is the lower limit of the wet-dry cycle moisture content.

[0020] Furthermore, the finite element model is improved based on the relationship of soil shear strength parameters, resulting in an improved finite element model, including:

[0021] The cohesion constant in the finite element model is replaced by the formula for calculating cohesion, and the internal friction angle constant is replaced by the formula for calculating internal friction angle, thus obtaining an improved finite element model.

[0022] Furthermore, based on the improved finite element model, the initial strength reduction factor is optimized to obtain the minimum safety factor of the slope, including:

[0023] Based on the initial strength reduction factor, the calculation formulas for cohesion and internal friction angle are reduced respectively to obtain the reduced cohesion and reduced internal friction angle.

[0024] Substitute the reduced cohesion and reduced internal friction angle into the improved finite element model respectively, and determine whether the improved finite element model converges;

[0025] If so, increase the initial strength reduction factor and recalculate until the improved finite element model converges, and determine the corresponding convergent strength reduction factor as the minimum safety factor of the slope;

[0026] If not, then the initial strength reduction factor is determined as the minimum safety factor for the slope.

[0027] Furthermore, based on the initial strength reduction factor, the calculation formulas for cohesion and internal friction angle are reduced respectively to obtain the reduced cohesion and reduced internal friction angle, including:

[0028] Divide the cohesive force by the initial strength reduction factor to obtain the reduced cohesive force;

[0029] Divide the internal friction angle by the initial strength reduction factor to obtain the reduced internal friction angle.

[0030] To address the aforementioned problems, this invention also provides a slope stability analysis device based on a finite element model, comprising:

[0031] The shear strength parameter relationship acquisition module is used to obtain the shear strength parameter relationship of soil.

[0032] The finite element model improvement module is used to improve the finite element model based on the relationship of soil shear strength parameters, resulting in an improved finite element model.

[0033] The initial strength reduction factor setting module is used to set the initial strength reduction factor;

[0034] The slope stability analysis module is used to optimize the initial strength reduction factor based on the improved finite element model, obtain the minimum safety factor of the slope, and perform slope stability analysis based on the minimum safety factor of the slope.

[0035] To address the aforementioned problems, the present invention also provides an electronic device, including a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, it implements the slope stability analysis method based on the finite element model as described above.

[0036] To address the aforementioned problems, this invention provides a computer-readable storage medium storing computer program instructions. When these computer program instructions are executed by a computer, the computer performs the slope stability analysis method based on the finite element model as described above.

[0037] The beneficial effects of adopting the above technical solution are as follows: This application provides a slope stability analysis method, device, and electronic equipment based on a finite element model. The method includes: improving the finite element model according to the relationship of soil shear strength parameters to obtain an improved finite element model; optimizing the initial strength reduction factor according to the improved finite element model to obtain the minimum safety factor of the slope; and performing slope stability analysis based on the minimum safety factor of the slope. By obtaining the relationship of soil shear strength parameters, the connection between soil shear strength parameters and other parameters is established, enabling the use of dynamically changing soil shear strength parameters in the data processing process, thereby improving the accuracy of the finite element model data processing results; in addition, slope stability is analyzed through the strength reduction factor, thus realizing the data representation of the roadbed slope stability analysis results and improving the reliability of the roadbed slope stability analysis results. Attached Figure Description

[0038] Figure 1 A flowchart illustrating an embodiment of the slope stability analysis method based on the finite element model provided by the present invention;

[0039] Figure 2 This is a schematic flowchart of an embodiment of the present invention for obtaining the relationship between soil shear strength parameters;

[0040] Figure 3 A schematic flowchart illustrating an embodiment of the present invention for obtaining the minimum safety factor of a slope;

[0041] Figure 4 This is a schematic flowchart illustrating an embodiment of the present invention for obtaining the convergence strength reduction coefficient;

[0042] Figure 5 A structural block diagram of an embodiment of the slope stability analysis device based on the finite element model provided by the present invention;

[0043] Figure 6 This is a schematic diagram of an embodiment of the electronic device for slope stability analysis based on the finite element model provided by the present invention. Detailed Implementation

[0044] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0045] Before presenting the embodiments, let's first explain ABAQUS, soil shear strength, slope stability, and wet-dry cycles:

[0046] ABAQUS is a powerful finite element method (FEM) software for engineering simulation, capable of solving problems ranging from relatively simple linear analyses to many complex nonlinear problems. ABAQUS includes a rich library of elements capable of simulating arbitrary geometries and a wide range of material models to simulate the properties of typical engineering materials, including metals, rubber, polymers, composites, reinforced concrete, compressible hyperelastic foams, and geological materials such as soil and rock. As a general-purpose simulation tool, ABAQUS can solve numerous structural (stress / displacement) problems and simulate many other engineering problems, such as heat conduction, mass diffusion, thermoelectric coupling analysis, acoustic analysis, geotechnical analysis (fluid permeability / stress coupling analysis), and piezoelectric analysis.

[0047] Soil shear strength refers to the ultimate strength of soil against shear failure. There are two parameters for soil shear strength: 1. Soil cohesion, or internal strength; 2. Soil internal friction angle.

[0048] Slope stability refers to the degree of stability of the rock and soil masses on a slope under certain slope height and angle conditions. Based on their formation, slopes are divided into two categories: natural slopes and artificial slopes. The latter are further divided into excavated slopes and dam slopes, etc. Based on their material composition, slopes are divided into three types: rock slopes, soil slopes, and composite rock-soil slopes. Based on their degree of stability, slopes are divided into stable slopes, unstable slopes, and slopes in a state of limit equilibrium.

[0049] The wet-dry cycle refers to the process of testing a certain indicator of a substance under repeated dry and wet conditions.

[0050] In practical engineering, the soil inside the roadbed is simultaneously subjected to wet-dry cycles and vertical loads such as the self-weight of the overlying soil and pavement loads. These factors affect the shear strength parameters of the soil, thereby influencing the stability of the roadbed slope. Therefore, when establishing a finite element model of the roadbed slope, it is necessary to comprehensively consider the effects of wet-dry cycles and overlying loads to improve the accuracy of the roadbed slope stability analysis.

[0051] ABAQUS is a widely used finite element numerical analysis software in geotechnical engineering and road engineering, boasting advantages such as high computational efficiency and accurate results, making it well-suited for slope stability analysis. However, it has some shortcomings in defining soil material parameters. For instance, when setting certain material parameters, the commonly used ABAQUS model treats the soil as an ideal material, failing to account for the dynamic changes of material parameters in engineering applications.

[0052] Therefore, in the existing technology, when performing slope stability analysis on soil using the finite element model, there is a problem of low accuracy in the analysis results of roadbed slope stability due to the failure to consider the changes in soil shear strength parameters.

[0053] To address the aforementioned issues, this application provides a slope stability analysis method, apparatus, electronic device, and storage medium based on a finite element model, which will be described in detail below.

[0054] like Figure 1 As shown, Figure 1 A flowchart illustrating an embodiment of the slope stability analysis method based on the finite element model provided by the present invention includes:

[0055] Step S101: Obtain the relationship of soil shear strength parameters;

[0056] Step S102: Improve the finite element model based on the relationship of soil shear strength parameters to obtain the improved finite element model;

[0057] Step S103: Set the initial strength reduction factor;

[0058] Step S104: Optimize the initial strength reduction coefficient according to the improved finite element model to obtain the minimum safety factor of the slope, and perform slope stability analysis based on the minimum safety factor of the slope.

[0059] In this embodiment, firstly, the relationship between soil shear strength parameters is obtained, and the finite element model is improved based on the relationship between soil shear strength parameters to obtain an improved finite element model; then, an initial strength reduction factor is set; finally, the initial strength reduction factor is optimized based on the improved finite element model to obtain the minimum safety factor of the slope, and slope stability analysis is performed based on the minimum safety factor of the slope.

[0060] In this embodiment, by obtaining the relationship between soil shear strength parameters, the connection between soil shear strength parameters and other parameters is established, enabling the use of dynamically changing soil shear strength parameters during data processing to improve the accuracy of finite element model data processing results. In addition, slope stability is analyzed through strength reduction coefficient, thereby realizing the data representation of roadbed slope stability analysis results and improving the reliability of roadbed slope stability analysis results.

[0061] It should be noted that research shows that the influence of the number of wet-dry cycles, the lower limit of the moisture content of the wet-dry cycle, and the magnitude of the overburden load on the shear strength parameters of the soil can be expressed by a functional relationship. For the same roadbed slope model, the number and magnitude of the wet-dry cycles are consistent, but the overburden loads at different points within the model are not the same due to the different burial depths, and therefore cannot be uniformly set to the same constant value.

[0062] Currently, the material parameter setting module in the preprocessing of ABAQUS finite element calculation software can only set the shear strength parameter to a single value, and cannot set it to a function related to the burial depth. Therefore, this application defines a roadbed soil shear strength parameter that is more in line with the actual working conditions by secondary development of ABAQUS, and establishes an improved finite element model of the roadbed under loaded wet-dry cycle conditions, thereby improving the accuracy and reliability of roadbed slope stability analysis.

[0063] In a preferred embodiment, in step S101, in order to obtain the relationship of soil shear strength parameters, such as... Figure 2 As shown, Figure 2 A schematic flowchart illustrating an embodiment of the present invention for obtaining the relationship between soil shear strength parameters includes:

[0064] Step S111: Obtain the shear strength parameters of the soil under various test conditions, as well as the corresponding test index data, through multiple wet-dry cycle tests under loaded conditions;

[0065] Step S112: Perform function fitting on the shear strength parameters and the corresponding test index data to obtain the relationship between the soil shear strength parameters.

[0066] In this embodiment, firstly, the shear strength parameters of the soil under various test conditions and the corresponding test index data are obtained through multiple wet-dry cycle tests under loaded conditions; then, the shear strength parameters and the corresponding test index data are fitted by a function to obtain the relationship between the soil shear strength parameters.

[0067] In this embodiment, data was collected through multiple wet-dry cycle tests under loaded conditions to obtain the required data; then, through function fitting, the correlation between soil shear strength parameters and test indices was realized to facilitate data replacement in subsequent data processing.

[0068] In one specific embodiment, in step S111, the test index data includes the overlying load data, the number of wet-dry cycles data, and the lower limit of the wet-dry cycle moisture content data.

[0069] Since the relationship between overlying load, number of wet-dry cycles, and lower limit of moisture content in wet-dry cycles is relatively close with shear strength parameters, and relatively accurate data can be obtained during data analysis, the above three parameters are selected as test indicators.

[0070] In other embodiments, the test indicators can be adjusted according to actual needs.

[0071] In one specific embodiment, in step S112, the shear strength parameters of the soil include cohesion and internal friction angle.

[0072] In order to obtain specific fitting formulas, high liquid limit red clay samples taken from Wuhan were tested to obtain calculation formulas for cohesion and internal friction angle.

[0073] The formula for calculating cohesion is as follows:

[0074] c = 0.044P + 4.82e -0.29N -1.66ω + 60.78

[0075] The formula for calculating the angle of internal friction is:

[0076]

[0077] Where c represents the cohesion of the roadbed slope soil. ω is the internal friction angle of the roadbed slope soil, P is the overburden load, N is the number of wet-dry cycles, and ω is the lower limit of the wet-dry cycle moisture content.

[0078] It should be noted that the formulas provided in this embodiment are only for calculating the cohesion and internal friction angle for a specific clay sample. In other embodiments, the parameters in the formulas for calculating cohesion and internal friction angle can be adjusted according to actual needs, and may even include other parameter variables, which are not limited here.

[0079] In a preferred embodiment, in step S102, after obtaining the relationship of soil shear strength parameters, in order to obtain an improved finite element model, firstly, the cohesion calculation formula is used to replace the cohesion constant value in the finite element model; then, the internal friction angle calculation formula is used to replace the internal friction angle constant value in the finite element model, thus obtaining the improved finite element model.

[0080] It should be noted that the original cohesion and internal friction angle in the finite element model existed as constant values. Through the improvement, the inherent relationship between the experimental indicators was used to replace the cohesion and internal friction angle, which effectively improved the reliability of the data processing results of the improved finite element model.

[0081] In a preferred embodiment, in step S104, after obtaining the improved finite element model, in order to obtain the minimum safety factor of the slope for slope stability analysis, such as... Figure 3 As shown, Figure 3 A schematic flowchart of an embodiment of obtaining the minimum safety factor of a slope provided by the present invention includes:

[0082] Step S141: Based on the initial strength reduction factor, reduce the calculation formulas for cohesion and internal friction angle respectively to obtain the reduced cohesion and reduced internal friction angle;

[0083] Step S142: Substitute the reduced cohesion and reduced internal friction angle into the improved finite element model respectively, and determine whether the improved finite element model converges;

[0084] Step S143: If so, increase the initial strength reduction factor and recalculate until the improved finite element model converges, and determine the corresponding convergent strength reduction factor as the minimum safety factor of the slope.

[0085] Step S144: If not, then determine the initial strength reduction factor as the minimum safety factor of the slope.

[0086] In this embodiment, firstly, the calculation formulas for cohesion and internal friction angle are reduced according to the initial strength reduction factor to obtain the reduced cohesion and reduced internal friction angle. Then, the reduced cohesion and reduced internal friction angle are substituted into the improved finite element model, and it is determined whether the improved finite element model converges. If the improved finite element model is determined to converge, the initial strength reduction factor is increased, and the calculation is recalculated until the improved finite element model converges, and the corresponding converged strength reduction factor is determined as the minimum safety factor of the slope. If the improved finite element model is determined not to converge, the initial strength reduction factor is determined as the minimum safety factor of the slope.

[0087] In this embodiment, the initial strength reduction coefficient is analyzed and adjusted by improving the finite element model, and it is determined whether the improved finite element model converges, so as to obtain the minimum safety factor of the slope. This effectively achieves the goal of obtaining the minimum safety factor of the slope through data processing, and improves the effectiveness and reliability of subsequent data processing.

[0088] In one specific embodiment, such as Figure 4 As shown, Figure 4 This is a schematic flowchart illustrating an embodiment of the present invention for obtaining the convergence strength reduction coefficient.

[0089] In a preferred embodiment, in step S141, in order to obtain the reduced cohesive force and the reduced internal friction angle, firstly, the cohesive force is divided by the initial strength reduction factor to obtain the reduced cohesive force; then, the internal friction angle is divided by the initial strength reduction factor to obtain the reduced internal friction angle.

[0090] By obtaining the relationship between soil shear strength parameters and establishing the connection between soil shear strength parameters and other parameters, the dynamic soil shear strength parameters can be used in the data processing process to improve the accuracy of finite element model data processing results. In addition, slope stability is analyzed through strength reduction coefficient, thereby realizing the data representation of roadbed slope stability analysis results and improving the reliability of roadbed slope stability analysis results.

[0091] To address the aforementioned problems, this invention also provides a slope stability analysis device based on a finite element model, such as... Figure 5 As shown, Figure 5 This is a structural block diagram of an embodiment of the slope stability analysis device based on the finite element model provided by the present invention. The slope stability analysis device 500 based on the finite element model includes:

[0092] The shear strength parameter relationship acquisition module 501 is used to acquire the shear strength parameter relationship of soil.

[0093] The finite element model improvement module 502 is used to improve the finite element model based on the relationship of soil shear strength parameters to obtain an improved finite element model;

[0094] The initial strength reduction factor setting module 503 is used to set the initial strength reduction factor;

[0095] The slope stability analysis module 504 is used to optimize the initial strength reduction factor based on the improved finite element model, obtain the minimum safety factor of the slope, and perform slope stability analysis based on the minimum safety factor of the slope.

[0096] To address the above problems, the present invention also provides an electronic device, such as... Figure 6 As shown, Figure 6 This is a schematic diagram of an embodiment of an electronic device for slope stability analysis based on a finite element model provided by the present invention. The electronic device 600 includes a processor 601 and a memory 602.

[0097] In one specific embodiment, the electronic device 600 may be a computing device such as a mobile terminal, desktop computer, laptop, handheld computer, and server.

[0098] In some embodiments, processor 601 may be a central processing unit (CPU), microprocessor or other data processing chip, used to run program code stored in memory 602 or process data, such as executing a slope stability analysis program based on a finite element model.

[0099] In some embodiments, memory 602 may be an internal storage unit of a computer device, such as a hard disk or memory. In other embodiments, memory 602 may be an external storage device of a computer device, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD), flash card, etc. Further, memory 602 may include both internal and external storage units of the computer device. Memory 602 is used to store application software and various types of data installed on the computer device, such as program code for installing the computer device. Memory 602 can also be used to temporarily store data that has been output or will be output. In one embodiment, memory 602 stores a slope stability analysis program 603 based on a finite element model, which can be executed by processor 601 to implement the slope stability analysis method based on the finite element model according to various embodiments of the present invention.

[0100] This embodiment also provides a computer-readable storage medium storing slope stability analysis program instructions based on a finite element model. When the slope stability analysis program instructions based on a finite element model are executed by a processor, the slope stability analysis method based on a finite element model as described in any of the above technical solutions is implemented.

[0101] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0102] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A slope stability analysis method based on the finite element model, characterized in that, include: To obtain the relationship between soil shear strength parameters, which include cohesion and internal friction angle; The formula for calculating the cohesion is: The formula for calculating the internal friction angle is: Where c represents the cohesion of the roadbed slope soil. ω is the internal friction angle of the roadbed slope soil, P is the overlying load, N is the number of wet-dry cycles, and ω is the lower limit of the wet-dry cycle moisture content. The finite element model is improved based on the relationship of the soil shear strength parameters to obtain an improved finite element model, including replacing the cohesion value in the finite element model with the cohesion calculation formula and replacing the internal friction angle value in the finite element model with the internal friction angle calculation formula to obtain an improved finite element model. Set the initial strength reduction factor; The initial strength reduction coefficient is optimized based on the improved finite element model to obtain the minimum safety factor of the slope, and the slope stability analysis is performed based on the minimum safety factor of the slope.

2. The slope stability analysis method based on the finite element model according to claim 1, characterized in that, The process of obtaining the soil shear strength parameter relationship includes: By conducting multiple wet-dry cycle tests under loaded conditions, the shear strength parameters of the soil under various test conditions, as well as the corresponding test index data, were obtained. The shear strength parameters and the corresponding test index data are fitted by a function to obtain the relationship between the soil shear strength parameters.

3. The slope stability analysis method based on the finite element model according to claim 2, characterized in that, The test index data includes overlying load data, wet-dry cycle count data, and wet-dry cycle lower limit moisture content data.

4. The slope stability analysis method based on the finite element model according to claim 1, characterized in that, The step of optimizing the initial strength reduction coefficient based on the improved finite element model to obtain the minimum safety factor of the slope includes: Based on the initial strength reduction factor, the calculation formulas for the cohesion and the internal friction angle are reduced respectively to obtain the reduced cohesion and the reduced internal friction angle. Substitute the reduced cohesion and the reduced internal friction angle into the improved finite element model, and determine whether the improved finite element model converges. If so, increase the initial strength reduction factor and recalculate until the improved finite element model converges, and determine the corresponding converged strength reduction factor as the minimum safety factor of the slope; If not, then the initial strength reduction factor is determined as the minimum safety factor of the slope.

5. The slope stability analysis method based on the finite element model according to claim 4, characterized in that, The step of reducing the calculation formulas for cohesion and internal friction angle according to the initial strength reduction factor to obtain reduced cohesion and reduced internal friction angle includes: Divide the cohesive force by the initial strength reduction factor to obtain the reduced cohesive force; The reduced internal friction angle is obtained by dividing the internal friction angle by the initial strength reduction factor.

6. A slope stability analysis device based on a finite element model, characterized in that, include: The shear strength parameter relationship acquisition module is used to acquire the shear strength parameter relationship of soil, wherein the shear strength parameters of soil include cohesion and internal friction angle; The formula for calculating the cohesion is: The formula for calculating the internal friction angle is: Where c represents the cohesion of the roadbed slope soil. ω is the internal friction angle of the roadbed slope soil, P is the overlying load, N is the number of wet-dry cycles, and ω is the lower limit of the wet-dry cycle moisture content. The finite element model improvement module is used to improve the finite element model according to the relationship of the soil shear strength parameters to obtain an improved finite element model, including: replacing the cohesion value in the finite element model with the cohesion calculation formula and replacing the internal friction angle value in the finite element model with the internal friction angle calculation formula to obtain an improved finite element model; The initial strength reduction factor setting module is used to set the initial strength reduction factor; The slope stability analysis module is used to optimize the initial strength reduction coefficient according to the improved finite element model, obtain the minimum safety factor of the slope, and perform slope stability analysis based on the minimum safety factor of the slope.

7. An electronic device, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it implements the slope stability analysis method based on the finite element model as described in any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program instructions, which, when executed by a computer, cause the computer to perform the slope stability analysis method based on the finite element model according to any one of claims 1 to 5.

Images