32 results about "Limit equilibrium method" patented technology

The invention provides a landslide prediction method and system based on big data analysis, and relates to the technical field of big data analysis, and the method comprises the following steps: obtaining multi-source geological data of a target region, constructing a three-dimensional geological model, and dividing slope units; calculating an initial safety coefficient of each slope unit by adopting a limit equilibrium method and Monte Carlo simulation; acquiring real-time monitoring data, establishing an inverse analysis optimization model, and inverting and calibrating physical and mechanical parameters; updating calibration parameters to the model, coupling rainfall infiltration and underground water seepage simulation, dynamically updating a pore water pressure field, and calculating a real-time dynamic safety coefficient; and according to a comparison result of the dynamic safety coefficient and a preset threshold value, determining the stable state of the slope and sending out corresponding early warning. According to the method, through multi-source data fusion, parameter dynamic inversion calibration and real-time hydrological and mechanical coupling simulation, accurate and dynamic evaluation and graded early warning of slope stability are realized, and the accuracy and timeliness of landslide prediction are remarkably improved.

The invention belongs to the technical field of tunnel construction, and discloses a method and a system for determining the supporting force of a shield tunneling machine passing through a river channel height difference stratum.The method comprises the following steps: establishing a model in which a soil body actively damaged in front of a shield tunneling machine excavation face is regarded as a prismoid and a wedge body by combining a wedge body damage theory and a limit equilibrium method; the shield supporting force and the sliding soil body in the limit equilibrium state serve as analysis objects, and the mechanical balance of the shield supporting force and the sliding soil body is analyzed; the riverway undercrossing process is divided into five stages, the excavation face supporting force of each uneven stratum of the undercrossing riverway is calculated, and therefore the magnitude of the shield undercrossing riverway excavation face limit supporting force is determined. According to the method, a wedge-shaped body theoretical calculation model is simplified, complex formulas and tedious calculation steps are avoided, the limit supporting force of a horizontal stratum at the bottom of a river channel, a river channel slope, a non-river-channel bottom layer and junctions of all strata is accurately calculated, supporting force calculation is more suitable for actual engineering conditions, and a foundation is laid for subsequent theoretical analysis and technical development.

The invention relates to the technical field of slope stability prediction, in particular to a slope stability evolution prediction method of a main shock and aftershock sequence cumulative damage mechanism. The method comprises the following steps: determining an initial strength parameter of a slope sliding surface rock-soil body and a dynamic strength attenuation parameter under the action of a main shock and aftershock sequence through an indoor cyclic load test, and establishing a cumulative damage model; three-dimensional side slope geometric features are obtained, and the spatial orientation and the stress direction of a potential sliding surface are determined; calculating a dynamic sliding force in combination with seismic oscillation parameters, and updating an effective strength parameter and a dynamic anti-sliding force of the sliding surface in real time; and carrying out staged calculation and dynamic evolution analysis by adopting a limit equilibrium method or a strength reduction method. According to the method, by introducing a rock-soil body strength accumulated damage and progressive attenuation mechanism under the cyclic action of the main and aftershock sequences, the damage accumulation process and the stability evolution law of the slope stability along with the development of the main and aftershock sequences are described, so that the progressive instability process and the accumulated instability risk driven by the aftershock after the main shock is triggered can be identified.

The invention discloses a landslide risk monitoring method and system based on multi-source data, and relates to the field of geological monitoring early warning, and the method comprises the steps: obtaining the environment monitoring data of a to-be-monitored slope area, and constructing a multi-dimensional feature matrix according to the environment monitoring data; performing risk prediction classification based on the multi-dimensional feature matrix according to a risk classifier to obtain a landslide risk level, and performing prediction based on the multi-dimensional feature matrix according to a neural network model to obtain a landslide displacement prediction quantity; calculating a landslide stability coefficient according to the environmental monitoring data based on a limit equilibrium method, calculating a rainfall induction threshold by combining the rainfall data and the soil humidity data, and obtaining a landslide comprehensive risk coefficient by integrating the landslide stability coefficient and the rainfall induction threshold; and determining a landslide risk monitoring result of the to-be-monitored slope area in combination with the landslide risk grade, the landslide displacement prediction amount and the landslide comprehensive risk coefficient. According to the application, the technical problem that the existing landslide risk monitoring accuracy is poor can be solved.

The application discloses a method for determining support pressure of a tunnel face in opposite excavation, and comprises the following steps: S1, establishing an active failure mode of a soil body of the tunnel face in opposite excavation, wherein the active failure mode comprises a logarithmic spiral wedge-shaped sliding surface failure body in front of two tunnel faces and a semi-elliptical collapse body above and in front of the two tunnel faces; S2, obtaining a moment balance equation of the logarithmic spiral wedge-shaped sliding surface failure body and the semi-elliptical collapse body based on a limit equilibrium method; and S3, reversely deducing a critical support force P of the tunnel face in opposite excavation according to the moment balance equation. The active failure mode and the critical support force P obtained by calculation are reliable and reasonable.

The present application relates to the technical field of geotechnical slope safety, and particularly relates to a soft interlayer-containing bedding slope displacement dynamic safety early warning method and system based on time sequence LSTM. By constructing the step-by-step excavation process of the slope as a time sequence and introducing a long short-term memory neural network model capable of effectively learning long-term dependencies, the accurate simulation of the displacement dynamic cumulative response of the soft interlayer-containing bedding slope during the excavation process is realized. The method effectively overcomes the shortcomings of the existing technology, such as the inability of the limit equilibrium method to reflect time sequence effects, the low calculation efficiency and difficulty in real-time application of the numerical simulation method, and the inability of the static machine learning model to capture the step-by-step excavation path dependence characteristics. The advantage lies in short calculation time, fast iteration speed, and the ability to realize real-time and dynamic prediction of the displacement at each step during the excavation process, thereby providing timely and reliable technical support for slope safety management and risk early warning decision-making during engineering construction, greatly improving the timeliness and accuracy of early warning.

The invention is suitable for the technical field of electric power engineering, and provides a power transmission facility area mountain slope stability calculation method and system, and the method comprises the steps: carrying out the spatial preprocessing of obtained multi-source basic data of a research area, and obtaining the standardized data of a unified space reference; based on the preprocessed standardized data, screening a typical slope according to a preset space index; extracting section lines from the screened typical slope surfaces, and constructing a two-dimensional slope surface geometric model based on the section lines; setting two types of comparison working conditions for each two-dimensional slope geometric model; carrying out slope stability calculation on the two comparison working conditions by adopting a limit equilibrium method to obtain a safety coefficient of the potential sliding surface under each working condition; and comparing and analyzing an influence threshold value of runoff on the slope stability according to the safety coefficient. According to the method, slope stability analysis in a complex geological environment is converted from experience qualitative analysis to data-driven quantitative analysis, and standardized technical support is provided for prevention and control of geological disasters of a power transmission corridor in a southwest karst area.

The application discloses a method for determining support pressure of a tunnel face in opposite excavation, and comprises the following steps: S1, establishing an active failure mode of a soil body of the tunnel face in opposite excavation, wherein the active failure mode comprises a logarithmic spiral wedge-shaped sliding surface failure body in front of two tunnel faces and a columnar collapse body above the two tunnel faces; S2, determining a geometric relationship of the active failure mode, and obtaining a moment balance equation of the logarithmic spiral wedge-shaped sliding surface failure body and the columnar collapse body based on a limit equilibrium method; and S3, reversely deducing and calculating a critical support force P of the tunnel face in opposite excavation according to the moment balance equation. The active failure mode and the critical support force P obtained by calculation are reliable and reasonable.

The present application relates to the technical field of slope stability analysis, and discloses a kind of coal mining influence under the slope stability evaluation method of mining, comprising the following steps: step 1, obtains topographic parameters and rock-soil parameters;Step 2, obtains coal mining related calculation parameters;Step 3, surface movement deformation is determined by double line calculation;The double line calculation includes: I line theoretical calculation and II line numerical calculation;Step 4, compares the surface movement deformation under the influence of mining obtained in double line calculation, and selects surface movement deformation according to preset conditions;Step 5, the slope stability under the influence of mining is calculated by limit equilibrium method;Step 6, comprehensive analysis and evaluation mining slope stability.The present application combines numerical simulation and limit equilibrium method for calculation and analysis, analysis dimension is comprehensive, can reach higher calculation accuracy;It can provide effective and reliable basis for the stability evaluation of mined-out area in mountainous and hilly areas, construction and utilization, reclamation and repair.

This invention relates to the field of geotechnical engineering monitoring and slope stability analysis technology, specifically to a method and system for the layout of slope monitoring points throughout the entire construction and operation cycle. The method acquires multi-source monitoring data and constructs a unified data warehouse through cleaning, format conversion, and spatiotemporal registration. Based on this unified data warehouse, a dynamic risk assessment model coupled with the limit equilibrium method and the finite element method is used to identify target risk areas, and key monitoring variables are identified through global sensitivity analysis. Finally, a multi-objective optimization algorithm is used to solve for the Pareto optimal solution set to determine the location and density of monitoring points. This invention achieves adaptive matching of the monitoring network to changes in geological conditions and dynamic engineering needs throughout the entire cycle, improving the targeting of monitoring and the efficiency of resource allocation.

The application provides a calculation method of passive earth pressure of a foundation pit rock-socketed support pile. The calculation of the passive earth pressure comprises the following steps: setting an angle between a passive sliding surface and a horizontal plane as θ, dividing the earth pressure calculation model into three cases according to the relative position relationship between the sliding surface and a reserved rock shoulder in the pit, and establishing equations according to the static equilibrium condition on the sliding body by using the limit equilibrium method to obtain the passive earth pressure expression of the three cases; deriving the earth pressure expression with respect to θ, setting the equation as 0 to obtain θ' of different cases, comparing θ' with limit angles θ1 and θ2 of the three cases, selecting a suitable θ value to be substituted into the corresponding passive earth pressure equation, respectively obtaining the passive earth pressure of the three cases, and taking the minimum value as the actual passive earth pressure. The application fully considers the passive earth pressure provided by the reserved rock shoulder in the soil-rock combined foundation pit, so that the calculated passive earth pressure is more in line with the field conditions, and the calculation formula is simple and practical.

This invention belongs to the field of tunnel construction technology and discloses a method and system for determining the support force of a shield tunneling machine (TBM) under riverbed strata with elevation differences. This method combines wedge failure theory and the limit equilibrium method, establishing a model that treats the actively failing soil in front of the TBM excavation face as a prism plus a wedge. It analyzes the mechanical equilibrium of the TBM support force and the sliding soil under the limit equilibrium state, dividing the river crossing process into five stages and calculating the support force at the excavation face of each uneven stratum under the river, thereby determining the magnitude of the ultimate support force at the excavation face of the TBM under the riverbed. This invention simplifies the wedge theory calculation model, avoiding complex formulas and cumbersome calculation steps, and accurately calculates the ultimate support force at the bottom of the riverbed, the river slope, the bottom layer without a riverbed, and the boundaries between different strata. This makes the support force calculation more consistent with actual engineering conditions, laying the foundation for subsequent theoretical analysis and technological development.

The application discloses a kind of V-shaped slope stability calculation method and system, it is related to strip mining technical field.Based on three-dimensional numerical simulation technology, determine its failure mode first determine the spatial form equation of potential sliding body, then the sliding body is divided into regional division micro column, through constitutive relation and static equilibrium condition, the stress state of micro column is solved, the force of each row micro column is superposed along the direction of main sliding surface, and the two-dimensional equivalent shear strength parameters with three-dimensional effect on each row of main sliding surface micro column are obtained using equivalent idea, then the three-dimensional V-shaped slope stability coefficient is derived using rigid body limit equilibrium method.The application avoids the problems of high calculation cost, difficult parameter determination and complex calculation process in the traditional three-dimensional slope stability calculation method, solves the three-dimensional stability problem of this special form slope, provides more reliable theory and technology for the design, mining, prevention and management of slope, and has important practical significance for ensuring mining safety and efficient production.

The application discloses a method for automatically searching and evaluating stability of key dangerous blocks in a hydraulic tunnel, which comprises the following steps: constructing a three-dimensional model of the tunnel and automatically identifying all blocks based on a spatial topology algorithm; calculating the safety factor of the blocks by using a rigid body limit equilibrium method, and determining the blocks below a threshold value as dangerous blocks; supporting the exposed excavation surface of the dangerous blocks, calculating the safety factor after supporting, and comparing the safety factor with the threshold value; if the safety factor after supporting is still below the threshold value, adjusting the number of supporting points and repeating the calculation until the requirement is met; and finally outputting the block number, supporting parameters and sliding mode. The method can automatically identify dangerous blocks and optimize the supporting scheme, ensure that the stability of the reinforced blocks meets the requirements, and improve the intelligent level of the tunnel supporting design.

The embodiment of the application provides a slope limit equilibrium method based on shear deformation coordination, relates to the technical field of slope stability analysis, and introduces the mechanical concept of shear deformation coordination into the limit equilibrium method, and after the target slope is discretized into a plurality of strips, mechanical calculation is carried out on each strip, the shear force at the bottom of the first strip to the shear force at the bottom of the n-th strip, the normal force at the bottom of the first strip to the normal force at the bottom of the n-th strip, the interstrip shear force and the interstrip normal force are sequentially solved, the H n+1 of the last strip node is obtained, and iteration is carried out to obtain the safety factor F n+1 of the target slope when the condition is met s , which is the safety factor F s of the target slope finally obtained. In the calculation of the interstrip shear force, the method introduces the basic assumption of deformation coordination, combines the calculation of the interstrip force with deformation, has clear physical meaning, avoids the randomness of the interstrip force assumption of the traditional limit equilibrium method, and makes the calculation result more scientific and reliable.

The invention discloses a slope multi-parameter fusion monitoring and data analysis system, belongs to the technical field of slope monitoring and disaster prevention, and aims to accurately identify the slope instability risk. The system comprises a partition sensing module which divides a slope into a plurality of slope height segmentation units and collects multi-source monitoring data of each slope height segmentation unit; the data transmission module performs edge preprocessing on the multi-source monitoring data and then transmits the multi-source monitoring data to the cloud; the fusion calculation module performs anomaly elimination and feature extraction on the multi-source monitoring data subjected to edge end preprocessing, and then generates a regional instability index by combining a limit equilibrium method with a slope height correction factor; the prediction module divides a cooperative influence unit through a bormor index, and outputs a short-term overall instability probability through a long and short-term neural network; and the visual application module displays the data through a slope height layering GIS and carries out landslide risk judgment according to indexes and probabilities. According to the invention, refined monitoring and accurate short-term prediction are realized, and support is provided for landslide disaster prevention.

The invention relates to the technical field of mine engineering, and provides a surface mine crushing station safe layout method and device based on a critical safety distance, and the method comprises the steps: obtaining the geological information and geomechanical parameters of a target slope of a to-be-built crushing station region; based on geological information and geomechanical parameters, combined with loads generated at different crushing station arrangement positions, an improved limit equilibrium method is adopted to calculate the slope safety coefficient of each crushing station arrangement position; based on the rule that the slope safety coefficient changes along with the arrangement position of the crushing station, the critical safety distance of the crushing station is determined; and the crushing station is arranged at the critical safety distance. According to the embodiment, by calculating the safety relation between the crushing station and the slope, the scientificity and rationality of the design of the crushing station are improved, and the raw coal transportation cost is reduced while the stability and safety of the slope are guaranteed.

This application discloses a method and apparatus for evaluating the seismic stability of slopes with a binary stratigraphic structure, relating to the field of geotechnical engineering. A soil-rock differentiated constitutive model is established, and the spatiotemporal effects of seismic waves are simulated using simple harmonic waves. Dynamic response characteristics are calculated, and a logarithmic spiral slip surface is determined. The vertically segmented slip body is analyzed, and the inertial force resultant is obtained by integrating seismic acceleration. Using the limit equilibrium method, the slope seismic stability coefficient corresponding to the logarithmic spiral slip surface is solved. All potential slip surfaces within the slope are iteratively searched, and the slip surface corresponding to the smallest slope seismic stability coefficient is taken as the most dangerous slip surface. The displacement and acceleration dynamic response laws of the slip body under seismic loading are analyzed to form a comprehensive evaluation system. This method solves the problems of existing methods that still use a single viscoelastic constitutive model, failing to fully consider the differences in dynamic characteristics between soil and bedrock, failing to reflect the geometric boundary conditions of the slope model, and potentially overestimating seismic forces within the slope.

The application discloses a kind of soil slope potential landslide influence range and form prediction method, system, equipment and medium, specific steps are as follows: S1.potential slip surface identification;S2.slip surface and slope intersection is calculated, calculate the area of soil before landslide;S3.after landslide, the area of soil is calculated;S4.according to S3 content, the farthest point distance of soil after landslide is calculated;S5.the obtained post-landslide toe coordinates and the area of soil after landslide are drawn to the slope profile, the influence range and form after potential slip surface sliding can be clearly reconstructed.This application calculates potential slip surface by using Geo-Slope software, which is based on limit equilibrium method, can accurately identify the potential sliding surface of slope, combined with slip surface position function, the volume of sliding body can be accurately calculated.This process combines traditional method with modern computing tools, significantly improves the scientificity and accuracy of landslide prediction.

This invention discloses a method for back-analysis of shear strength parameters of soil in a homogeneous slope under sliding conditions, comprising: collecting crack information of the slope body under sliding conditions and determining the slope safety factor; determining the value range of the shear strength parameters to be inverted; determining the direction and location of cracks and selecting multiple two-dimensional calculation sections of the slope body under sliding conditions; using the geometric coordinate position of the two-dimensional calculation sections at the cracks and the slope safety factor as search constraints, and using the circular arc slip surface search to obtain the potential most dangerous slip surface and the combination of shear strength parameters; and using statistical methods to analyze the combination of shear strength parameters of the potential most dangerous slip surface to obtain the equivalent shear strength parameter combination that satisfies the slope body. This invention can improve the accuracy and reliability of slip surface construction, making the shear strength parameters closer to the actual slope condition, and can also objectively determine the unique or most reasonable equivalent shear strength parameter combination, solving the problem that the solution of shear strength parameters is not unique in the traditional limit equilibrium method back analysis.

The application discloses a dam slope stability analysis method for a dam slope caused by a fault, and specifically relates to the following steps: according to the form of the dam body and the fault position, a fault position for analysis is determined on the dam slope; the maximum vertical dislocation amount and the maximum horizontal variation amount of the fault are obtained from existing geological data, and the settlement of the downstream dam slope at the fault position is determined according to the maximum vertical dislocation amount; the dry bulk density and the saturated bulk density of the dam body material are obtained through a density test in a dam material test, and the Φ0 and the △Φ are obtained through a large triaxial test; the shear strength of the dam body material is reduced in the range of the maximum horizontal variation amount at the determined fault position; the dam slope stability at the determined fault position is calculated; and the dam slope stability at the fault position is evaluated according to the calculation result. The method solves the problem that the existing method cannot quickly and preliminarily determine whether the dam slope is stable when the dam body is caused to fault.

The application provides an ice-water accumulation body bank collapse prediction method based on the limit equilibrium method, relates to the technical field of reservoir safety, and obtains a complete topographic profile by topographic surveying on an ice-water accumulation body slope, constructs an MP model in combination with the mechanical parameters of the ice-water accumulation body slope, analyzes the stability of the ice-water accumulation body slope in the MP model by the limit equilibrium method, obtains an analysis result, and if the part with the stability less than 1 in the analysis result is located on water, the part with the stability less than 1 located on water is accumulated under water according to the underwater stability slope angle, bank collapse is simulated, a new topographic profile is obtained, the MP model is reconstructed, iteration is carried out, until the ice-water accumulation body slope cannot collapse, the overall width of the part with the stability less than 1 located on water is counted as the predicted bank collapse width, the problem that the existing ice-water accumulation body bank collapse prediction error is large is solved, and the application is suitable for ice-water accumulation body bank collapse prediction.

The invention provides a landslide intelligent early warning method and device, and relates to the technical field of landslide early warning, and the method comprises the steps: drawing a vector graph for side slope geological information, carrying out the side slope stability calculation and sliding surface screening through the vector graph and a Spinplug method, and outputting a potential sliding surface set; a two-dimensional discrete element model is constructed for side slope geological information based on a discrete element simulation technology, and a plurality of side slope stability analysis models are generated by cutting the two-dimensional discrete element model and introducing random parameter disturbance; inputting the slope stability analysis model into a long short-term memory network for training, outputting a slope prediction model, and inputting the slope geological information and the potential sliding surface set into the slope prediction model for prediction to obtain sliding surface feature parameters; and calculating a landslide stability coefficient for the sliding surface characteristic parameters based on a rigid body limit equilibrium method, and performing early warning judgment on the landslide stability coefficient through a dynamic threshold value. According to the invention, the problem that accurate prediction and dynamic early warning cannot be carried out aiming at the landslide risk is solved.

This application belongs to the technical field of dangerous slip surface excavation, specifically involving a method for determining dangerous slip surface and measuring stability in the excavation of crushed stone pile composite foundation. This method can effectively overcome the limitations of standard regulations and traditional limit equilibrium methods, has a wide range of applications, and high accuracy. At the same time, the criteria used can accurately determine the stability state of the slope top and slope body at different stages during the excavation process, providing an effective basis for the prediction, forecasting, and treatment of foundation slopes.

The invention discloses a river bank crack and bank slope instability monitoring method and system based on image recognition, and belongs to the technical field of river dynamics and geological disaster monitoring, and the method comprises the steps: collecting a river bank image through arranging a multi-angle camera device, and constructing a training data set through frame extraction and labeling processing; a ResU-Net model introducing a residual structure and an attention mechanism is adopted to carry out crack and shoreline identification, and the segmentation precision is improved through hyper-parameter optimization; calculating the distance from the crack to the shoreline based on the image recognition result to determine an evaluation section; calculating a bank slope stability safety coefficient by adopting a limit equilibrium method; and finally, risk grades are divided according to the safety coefficient, and river bank instability monitoring is realized. According to the method, the construction and maintenance difficulty is remarkably reduced, the evaluation efficiency is improved, the early-stage preparation process of bank collapse monitoring is simplified, and the problem of field complex condition limitation in bank collapse monitoring is solved.

This invention relates to the field of geotechnical engineering and geological disaster prevention technology, and provides a method for slope landslide risk identification and stability evaluation considering the coupling effect of excavation and rainfall infiltration. The method includes the following steps: inputting geological survey data; establishing a geometric model and material zoning; determining unsaturated hydraulic parameters; performing steady-state seepage analysis to establish a steady-state initial field; performing unsteady-state infiltration analysis; calculating / correcting unsaturated shear strength parameters; conducting limit equilibrium method (LEM) and strength reduction method (SSR) analyses in parallel; extracting the most unfavorable slip surface; comparing and verifying the consistency of the LEM slip surface and the SSR slip surface, and outputting the slope risk level and early warning suggestions based on the verified results. This scheme achieves reliable identification of the instability moment, the most unfavorable slip surface, and the contribution of excavation / rainfall through the above method. It can be directly applied to slope risk classification and early warning, significantly improving the engineering applicability of the research results, and has advantages such as wide applicability and ease of engineering integration.

The present application relates to the field of geological disaster monitoring and warning and geotechnical engineering informatization, and discloses a kind of satellite InSAR and ground displacement joint restraint's slope digital twinborn self-update and early warning method, solve the existing slope monitoring technology There are problems such as difficult multi-source data fusion, stability analysis cannot dynamically update parameters and sliding surface geometry, lack of digital twinborn model self-update capability and single early warning index.The present application fuses satellite InSAR surface deformation, ground GNSS point deformation, deep profile deformation data under unified space-time and coordinate datum, realizes the real-time self-update of model by constructing twinborn model augmented state containing geotechnical parameters and sliding surface geometric parameters, combined with hierarchical consistency constraint objective function, then fuses static stability index of limit equilibrium method and dynamic deformation index of proxy model, forms comprehensive hierarchical early warning system considering static stability and dynamic deformation characteristics of slope.

The application provides a kind of equal shear strength side slope stability calculation method, comprising: dividing area step, composite foundation fill slope is divided into first area, second area and third area;Transformation model step, in first area, according to each pile body, it is divided into several repeated cross section square unit body, then the cross section of pile body is converted from circle into rectangle section with equivalent area, and the pile body is converted from cylindrical pile into rectangular pile;Re-modeling step, the fill of the second area of side slope is divided into different gravity areas, the equivalent gravity of the second area for modeling is obtained, and the model of the second area above the first area is re-established;Calculate the side slope stability coefficient step, obtain the height of the side slope in the second area, the length of the pile body to determine the third area range, establish the completed two-dimensional limit equilibrium method analysis model, and calculate the side slope stability coefficient in the second area.

The present application relates to the technical field of geotechnical slope safety, and particularly relates to a soft interlayer-containing bedding slope displacement dynamic safety early warning method and system based on time sequence LSTM. By constructing the step-by-step excavation process of the slope as a time sequence and introducing a long short-term memory neural network model capable of effectively learning long-term dependencies, the accurate simulation of the displacement dynamic cumulative response of the soft interlayer-containing bedding slope during the excavation process is realized. The method effectively overcomes the shortcomings of the existing technology, such as the inability of the limit equilibrium method to reflect time sequence effects, the low calculation efficiency and difficulty in real-time application of the numerical simulation method, and the inability of the static machine learning model to capture the step-by-step excavation path dependence characteristics. The advantage lies in short calculation time, fast iteration speed, and the ability to realize real-time and dynamic prediction of the displacement at each step during the excavation process, thereby providing timely and reliable technical support for slope safety management and risk early warning decision-making during engineering construction, greatly improving the timeliness and accuracy of early warning.

This invention discloses a method for calculating the slope stability safety factor that integrates the finite element method and the limit equilibrium method, comprising the following steps: 1) providing the results of the finite element calculation of unsaturated seepage stress coupled with the slope, and extracting the effective stress of each element node; 2) obtaining the set of line segments intersecting the slip zone and the finite element mesh, and establishing an index pattern between the line segment set and the finite element mesh; 3) solving for the normal force and shear force on each line segment set by integrating along the slip zone path; 4) calculating the total anti-sliding force and total sliding force on the slip zone; 5) calculating the stability safety factor. This invention combines the advantages of the seepage stress coupled finite element method and the limit equilibrium method, and uses an accurate integration method along the path to achieve accurate calculation of the sliding force and anti-sliding force of the slip surface. The physical meaning is clear, the derivation is rigorous, and the calculation results are reliable, which helps to reasonably evaluate the slope stability variation law under the coupling of multiple factors and multiple physical fields.