A method and device for processing model information in pipe jacking construction in composite strata

Abstract

The present invention provides a model information processing method and device for pipe jacking construction in composite formations. The method comprises: obtaining pipe jacking construction data and geological data; preprocessing the pipe jacking construction data and geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data; obtaining a geometric model based on the preprocessed pipe jacking construction data and preprocessed geological data; obtaining a three-dimensional finite element model based on the geometric model and preset constraints; and obtaining simulation results of the interaction between the pipe jacking and the surrounding soil based on the three-dimensional finite element model. The present invention can improve the accuracy of the simulation results of the interaction between the pipe jacking and the surrounding soil.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and also to a model information processing method and device for composite stratum pipe jacking construction. Background Art

[0002] The process of tunneling involves a complex interaction between soil and structure. The tunneling process disturbs the surrounding soil, causing stress release and deformation. Simultaneously, the surrounding soil also affects the tunnel. Therefore, accurately analyzing and simulating the internal forces and deformations generated by the interaction between the two during tunneling is crucial for the design and construction of tunneling projects. However, existing methods for simulating the interaction between tunneling and surrounding soil suffer from low accuracy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a model information processing method and device for composite stratum jacking construction, so as to improve the accuracy of the simulation results of the interaction between the jacking pipe and the surrounding soil.

[0004] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0005] A first aspect of the present invention provides a model information processing method for pipe jacking construction in composite formations, comprising:

[0006] Obtain pipe jacking construction data and geological data;

[0007] Preprocessing the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data;

[0008] Obtaining a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data;

[0009] Obtaining a three-dimensional finite element model according to the geometric model and preset constraints;

[0010] According to the three-dimensional finite element model, a simulation result of the interaction between the jacking pipe and the soil surrounding the jacking pipe is obtained.

[0011] Optionally, obtain pipe jacking construction data and geological data, including:

[0012] Obtain data on the outer diameter, thickness, length, thickness of the thixotropic mud layer, and construction stage of the jacking pipe;

[0013] Obtain soil layer data, seepage data and geological structure data;

[0014] Obtaining pipe jacking construction data according to the pipe jacking outer diameter data, the pipe jacking thickness data, the pipe jacking length data, the thickness data of the thixotropic mud layer, and the construction stage data;

[0015] Geological data is obtained according to the soil layer data, the seepage data and the geological structure data.

[0016] Optionally, preprocessing the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data includes:

[0017] Verifying the pipe jacking construction data and the geological data to obtain a verification result;

[0018] Adjusting the pipe jacking construction data and the geological data according to the verification result to obtain adjusted pipe jacking construction data and adjusted geological data;

[0019] The adjusted pipe jacking construction data and the adjusted geological data are grouped to obtain pre-processed pipe jacking construction data and pre-processed geological data.

[0020] Optionally, obtaining a geometric model based on the preprocessed pipe jacking construction data and the preprocessed geological data includes:

[0021] Obtaining a pipe jacking model according to the pre-processed pipe jacking construction data;

[0022] Obtaining a soil model and a thixotropic slurry layer model around the jacking pipe according to the preprocessed geological data;

[0023] A geometric model is obtained according to the jacking pipe model, the soil model around the jacking pipe and the thixotropic slurry layer model.

[0024] Optionally, obtaining a three-dimensional finite element model according to the geometric model and preset constraints includes:

[0025] Obtain preset boundary conditions and contact relationship data;

[0026] Determining preset constraint conditions according to the preset boundary conditions and the contact relationship data;

[0027] determining binding parameters according to the pre-processed pipe jacking construction data and the pre-processed geological data;

[0028] The preset constraint conditions, the binding parameters and the geometric model are bound to obtain a three-dimensional finite element model.

[0029] Optionally, obtaining simulation results of the interaction between the jacking pipe and the soil surrounding the jacking pipe based on the three-dimensional finite element model includes:

[0030] Obtain solution control parameters;

[0031] The three-dimensional finite element model is run according to the solution control parameters to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe.

[0032] Optionally, the method further includes:

[0033] Adjusting a preset pipe jacking construction strategy according to a simulation result of the interaction between the pipe jacking and the soil surrounding the pipe jacking to obtain an adjustment result;

[0034] Based on the adjustment results, a recommended plan for pipe jacking construction is determined.

[0035] A second aspect of the present invention provides a model information processing device for pipe jacking construction in composite formations, comprising:

[0036] Acquisition module, used to obtain pipe jacking construction data and geological data;

[0037] A first processing module is used to preprocess the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data;

[0038] A second processing module is used to obtain a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data;

[0039] A third processing module is used to obtain a three-dimensional finite element model according to the geometric model and preset constraints;

[0040] The fourth processing module is used to obtain a simulation result of the interaction between the jacking pipe and the soil around the jacking pipe based on the three-dimensional finite element model.

[0041] According to a third aspect of the present invention, a computing device is provided, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to the first aspect is executed.

[0042] A fourth aspect of the present invention provides a computer-readable storage medium storing instructions, which, when executed on a computer, causes the computer to execute the method described in the first aspect.

[0043] The above solution of the present invention includes at least the following beneficial effects:

[0044] The above-mentioned scheme of the present invention obtains the jacking construction data and geological data, and preprocesses them. Then, a geometric model is obtained based on the preprocessed jacking construction data and the preprocessed geological data. Then, a three-dimensional finite element model is obtained in combination with preset constraints. The three-dimensional finite element model is used to obtain the simulation results of the interaction between the jacking pipe and the soil around the jacking pipe. This can improve the accuracy of the simulation results of the interaction between the jacking pipe and the soil around the jacking pipe, provide a reference for the jacking construction plan, and has the advantages of high accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 1 is a flow chart of a model information processing method for pipe jacking construction in composite formations according to an embodiment of the present invention;

[0046] Figure 2 It is a structural schematic diagram of a model information processing device for composite formation pipe jacking construction in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0048] like Figure 1 As shown, an embodiment of the present invention provides a model information processing method for pipe jacking construction in composite formations, comprising the following steps:

[0049] Step 101, obtaining pipe jacking construction data and geological data;

[0050] Step 102, preprocessing the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data;

[0051] Step 103, obtaining a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data;

[0052] Step 104: obtaining a three-dimensional finite element model according to the geometric model and preset constraints;

[0053] Step 105: obtaining simulation results of the interaction between the jacking pipe and the soil surrounding the jacking pipe based on the three-dimensional finite element model.

[0054] The model information processing method for composite stratum jacking construction proposed in an embodiment of the present invention obtains jacking construction data and geological data, preprocesses them, and then obtains a geometric model based on the preprocessed jacking construction data and the preprocessed geological data. Furthermore, combined with preset constraints, a three-dimensional finite element model is obtained. The three-dimensional finite element model is used to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe. This can improve the accuracy of the simulation results of the interaction between the jacking pipe and the soil around the jacking pipe, provide a reference for the jacking construction plan, and has the advantages of high accuracy and processing efficiency.

[0055] In an optional embodiment of the present invention, step 101 includes:

[0056] Step 1011, obtaining data on the outer diameter of the jacking pipe, the thickness of the jacking pipe, the length of the jacking pipe, the thickness of the thixotropic mud layer, and the construction stage data;

[0057] Specifically, the outer diameter data, thickness data and single-section length of the jacking pipe can be determined based on the design or actual measurement; the total length of the jacking pipe can be obtained based on the single-section length of the jacking pipe and the number of uses (or construction requirements). Therefore, the jacking pipe length data can include the single-section length of the jacking pipe, the number of uses, the total length of the jacking pipe, etc.; the thickness data of the thixotropic mud layer can be obtained based on construction experience or design requirements. Thixotropic mud is a mixed liquid that contacts the soil under pressure and penetrates into the soil layer, slowly spreads out, and forms a whole (layer) with the surrounding soil. Construction stage data can include excavation stage, jacking stage, grouting stage, etc. Here, in addition to the thickness data of the thixotropic mud layer, the composition data of the thixotropic mud layer can also be obtained, such as the thixotropic mud layer includes 8% bentonite, 0.4% sodium carbonate, 0.15% additives and clean water, wherein the additives can include sodium carboxymethyl cellulose, xanthan gum and polyacrylamide. The presence of a thixotropic slurry layer significantly reduces the friction between the jacking pipe and the surrounding soil. It also increases the viscosity and density of the soil, improving soil stability. In simulation results, this can be reflected as a reduced risk of soil collapse and an increase in the bearing capacity of the stratum. Obtaining the compositional ratio and properties of the thixotropic slurry layer affects the thixotropy, stability, and interaction with the soil. For example, bentonite, as the primary solid component, determines the viscosity and plasticity of the thixotropic slurry layer; water, as a solvent, regulates the fluidity and diffusivity of the thixotropic slurry layer; and additives are used to thicken and reduce water loss. Therefore, obtaining compositional data for the thixotropic slurry layer can improve the accuracy of simulation results of the interaction between the jacking pipe and the surrounding soil.

[0058] Step 1012, obtaining soil layer data, seepage data, and geological structure data;

[0059] Specifically, soil layer data, seepage data, and geological structure data can be obtained through geological surveys. Soil layer data can include soil layer distribution data and soil layer property data. Soil layer distribution refers to the distribution of underground soil layers, including the thickness and bedding structure of different soil layers. These data are crucial for determining the geometric boundaries of the model and dividing different material areas. Soil layer properties refer to the physical and mechanical properties of each soil layer, such as elastic modulus, Poisson's ratio, internal friction angle, and cohesion. These data will directly affect the stress and deformation behavior of the soil during the simulation process. Seepage data can include groundwater levels and hydrogeological conditions. The groundwater level refers to the height of the groundwater level and its changing patterns. Changes in the groundwater level will affect the effective stress and seepage characteristics of the soil, thereby affecting the interaction between the jacking pipe and the soil. Hydrogeological conditions refer to the flow direction, flow velocity, and water quality of groundwater, so that the impact of seepage on jacking construction can be considered in the model. Geological structure data may include geological structure and fault conditions. Geological structure is the feature that reveals the regional geological structure, such as folds and fractures. These structural features may affect the stability of the soil and the difficulty of pipe jacking construction. Fault conditions refer to the fault conditions near the construction area, including the nature, scale, occurrence and activity of the fault. Faults may cause sudden deformation or damage of the soil, posing a serious threat to pipe jacking construction. In addition, the following data can also be obtained through geological surveys: geotechnical physical and mechanical parameters, such as rock density and specific gravity, which are the basis for calculating rock stress and deformation; shear strength indicators, such as internal friction angle and cohesion, which reflect the ability of rock to resist shear failure; compressibility indicators, such as compression modulus or compression coefficient, which are used to describe the compression deformation characteristics of rock under pressure; rock permeability, obtaining rock permeability data, including parameters such as permeability coefficient, which are crucial for evaluating the impact of groundwater seepage on pipe jacking construction; other special geological phenomenon data, such as survey results of special geological phenomena such as karst, landslide, and ground subsidence. These phenomena may increase the complexity and risk of pipe jacking construction and need to be fully considered in the model.

[0060] Step 1013, obtaining pipe jacking construction data according to the pipe jacking outer diameter data, the pipe jacking thickness data, the pipe jacking length data, the thickness data of the thixotropic mud layer, and the construction stage data;

[0061] Specifically, pipe jacking construction data includes data on the pipe's outer diameter, thickness, length, thickness and composition of the thixotropic slurry layer, and construction phase data. It also needs to include pipe material properties, defining physical properties such as elastic modulus, Poisson's ratio, and density based on the pipe's material (e.g., concrete). This improves the accuracy of subsequent models and simulation results.

[0062] Step 1014: Obtain geological data based on the soil layer data, the seepage data, and the geological structure data.

[0063] Specifically, geological data includes acquired soil layer data, seepage data, geological structure data, geotechnical physical and mechanical parameters, shear strength index, compressibility index, rock and soil permeability, etc. It also needs to include soil material properties. That is, based on the geological survey results, the physical properties of different soil layers should be defined, including elastic modulus, Poisson's ratio, internal friction angle, cohesion, etc. This improves the accuracy of subsequent models and simulation results.

[0064] In an optional embodiment of the present invention, step 102 includes:

[0065] Step 1021, verifying the pipe jacking construction data and the geological data to obtain a verification result;

[0066] Specifically, the accuracy of the pipe jacking construction data can be verified by comparing it with design drawings, on-site measurement records, etc. The thickness data and composition data of the thixotropic mud layer can be verified by verifying whether they meet the construction specifications or design requirements; the construction phase data can be verified by verifying whether the division of construction phases is reasonable and whether the key links of the entire pipe jacking construction process are covered (key links can be preset according to actual conditions). The geological data can be compared again with the actual survey results to verify whether there is any data that does not match the actual survey results. The purpose of verifying the data is to improve the accuracy of the data and the accuracy of the final simulation results.

[0067] Step 1022: adjusting the pipe jacking construction data and the geological data according to the verification result to obtain adjusted pipe jacking construction data and adjusted geological data;

[0068] Specifically, the adjustment method can be to replace the erroneous data in the acquired data with the correct data from the design drawings, on-site measurement records, and actual survey results to ensure that the acquired data is consistent with the design drawings, on-site measurement records, and actual survey results, and meets the construction specifications or design requirements and covers the key links of the entire jacking construction process. In addition, duplicate, erroneous, or unreasonable data in the acquired data can also be deleted. The adjustment of the thickness data of the thixotropic mud layer can also be to increase the thickness of the thixotropic mud layer to improve the lubrication effect. The adjustment of the composition data of the thixotropic mud layer can be to adjust the proportion of a certain component. Here, the format of the data can also be adjusted to organize the acquired data into a format suitable for input into the modeling software. For example, the data can be organized into a table form, including the outer diameter of the jacking pipe, the thickness of the jacking pipe, the length of the jacking pipe, the thickness of the thixotropic mud layer, etc. For the construction stage data, it can be described as a specific construction step or stage number so that the corresponding loading conditions and boundary conditions can be set in the model. It is also necessary to ensure that the units of all data are consistent. For example, the length unit can be unified into meters (m) and the stress unit can be unified into megapascals (MPa).

[0069] Step 1023 , grouping the adjusted pipe jacking construction data and the adjusted geological data to obtain pre-processed pipe jacking construction data and pre-processed geological data.

[0070] Specifically, the data can be divided into three groups according to the construction stage data: excavation stage, jacking stage, and grouting stage. The jacking construction data and geological data of different groups may be different or the same. Grouping and selection are carried out according to actual conditions to facilitate the subsequent model's calculation of the interaction between the top and the surrounding soil, thereby improving the accuracy of the final results.

[0071] In an optional embodiment of the present invention, step 103 includes:

[0072] Step 1031, obtaining a pipe jacking model based on the pre-processed pipe jacking construction data;

[0073] Specifically, a geometric model of the jacking pipe (i.e., the jacking pipe model) can be created in the three-dimensional modeling software according to the jacking pipe outer diameter data (such as 4.2 meters), jacking pipe thickness data (such as 32 centimeters) and jacking pipe length data (such as the single-section length of the jacking pipe is 2.5 meters) in the pre-processed jacking pipe construction data. The jacking pipe model can be a single section or a multi-section splicing, depending on the complexity and needs of the simulation.

[0074] Step 1032: obtaining a soil model and a thixotropic slurry layer model around the jacking pipe based on the preprocessed geological data;

[0075] Specifically, a soil model (geometric model) surrounding the jacking pipe can be created in 3D modeling software based on preprocessed geological data. The soil model surrounding the jacking pipe should include sufficient boundaries to ensure the accuracy of the simulation results. At the same time, a thixotropic mud layer model is added between the jacking pipe and the surrounding soil. The thickness of the thixotropic mud layer should be consistent with the thickness data (e.g., 10 cm).

[0076] Step 1033 : obtaining a geometric model according to the pipe jacking model, the soil model surrounding the pipe jacking and the thixotropic slurry layer model.

[0077] Specifically, the pipe jacking model and the soil model around the pipe jacking are combined in the modeling software to ensure that the pipe jacking model is accurately embedded in the soil model around the pipe jacking. The model position is adjusted to ensure that the relative position relationship between the pipe jacking and the soil conforms to the actual construction situation, and the final geometric model is obtained.

[0078] In an optional embodiment of the present invention, step 104 includes:

[0079] Step 1041, obtaining preset boundary conditions and contact relationship data;

[0080] Specifically, the preset boundary conditions are the boundary conditions of the soil model around the jacking pipe, such as any one of the fixed boundaries, free boundaries, or rolling boundaries, to simulate actual geological constraints. Among them, the fixed boundary, also known as the constrained boundary, refers to the imposition of some form of displacement or force constraint on the model boundary to prevent the model from undergoing uncontrolled deformation or movement during the solution process. In this embodiment, the fixed boundary can be used to simulate the fixity of the working well or support structure. The specific setting methods can be: completely fixed, that is, completely constraining displacement in certain directions (such as the X, Y, and Z directions) so that the boundary remains stationary during the solution process. This is usually achieved by imposing a zero displacement condition on the boundary; partially fixed, that is, constraining displacement only in certain directions, such as constraining only in the horizontal directions (X and Y directions) while allowing free movement in the vertical direction (Z direction). A free boundary refers to a model boundary without any external constraints. The stress and displacement on the boundary are completely determined by the stress and deformation within the model. In this embodiment, if a boundary is far away from the construction area and has little impact on the construction, it can be regarded as a free boundary. The free boundary does not require additional constraints, and the stress and displacement on it are automatically determined by the model solution process. Rolling boundaries refer to rolling contacts and sliding interfaces on boundaries. The contact between the jacking pipe and the soil, and between the thixotropic slurry layer, the jacking pipe, and the soil, is a surface-to-surface or point-to-surface contact that can transmit normal pressure and tangential friction. These contact surfaces involve setting contact pair type data (such as sliding contact, no-slip contact, etc.) and contact parameter data (such as friction coefficient, contact stiffness, etc.).

[0081] When simulating the interaction between the jacking pipe and the soil, the effect of the pipe-soil friction on the jacking force can also be considered. This can be simulated by setting up contact pairs. The contact pairs can include normal contact and tangential contact, where tangential contact is used to simulate the generation of friction. The pipe-soil friction is calculated according to the following formula:

[0082] f1=(pμ1+C1)u1

[0083] Among them, f1 is the friction resistance per unit length of the pipe-soil, p is the contact pressure per unit length of the pipe-soil, μ1 is the friction coefficient of the pipe-soil, which is generally ranged from 0.1 to 0.3, C1 is the cohesion of the pipe-soil, which can be ignored under good mud lubrication conditions, and u1 is the contact width of the pipe-soil.

[0084] During pipe jacking, grouting is usually performed to form a slurry sleeve to reduce friction between the outer wall of the pipe segment and the surrounding soil. The presence of the slurry sleeve can effectively reduce the frictional resistance during the jacking process, namely the slurry sliding friction. Incorporating this factor into the finite element model can more accurately simulate and analyze the interaction between the pipe jacking and the soil. A contact interface is set between the pipe and the soil, which can simulate the relative sliding and friction between the pipe and the soil. The slurry sliding friction per unit area is calculated according to the following formula:

[0085]

[0086] Among them, τ is the sliding friction resistance of the slurry per unit area, τ d is the ultimate dynamic shear force, K is the mud consistency coefficient, V is the pipe jacking speed, d is the mud jacket thickness, and n is the mud fluidity index. K and n can be obtained from the mud parameters measured by the Fann six-speed rotation viscometer.

[0087] The contact pair type data, contact interface and contact parameter data set can be used as contact relationship data.

[0088] Pipe-soil friction is the friction force generated between the outer wall of the pipe and the soil when the jacking pipe is pushed into the soil.

[0089] Step 1042, determining preset constraint conditions according to the preset boundary conditions and the contact relationship data;

[0090] Specifically, the preset constraint conditions may include any one of a fixed boundary, a free boundary or a rolling boundary, and also include the contact relationship between the jacking pipe and the soil, and between the thixotropic slurry layer, the jacking pipe and the soil.

[0091] Step 1043, determining binding parameters based on the pre-processed pipe jacking construction data and the pre-processed geological data;

[0092] Specifically, the binding parameters mainly include the material properties of the jacking pipe, the material properties of the soil, and the material properties of the thixotropic mud. Among them, the material properties of the jacking pipe, such as the elastic modulus, Poisson's ratio, density, and other physical properties are defined according to the material of the jacking pipe (such as concrete); the material properties of the soil are defined based on the results of geological surveys, and the physical properties of different soil layers, including elastic modulus, Poisson's ratio, internal friction angle, cohesion, etc.; the material properties of the thixotropic mud can be determined based on the composition data of the thixotropic mud layer, mainly defining the mechanical properties of the thixotropic mud, such as friction coefficient, fluidity, density, viscosity, elastic modulus, etc. These parameters are crucial for simulating the interaction between the jacking pipe and the soil.

[0093] Step 1044 : Bind the preset constraint conditions, the binding parameters, and the geometric model to obtain a three-dimensional finite element model.

[0094] Specifically, finite element analysis software can be used to mesh the geometric model and discretize it into a finite number of units (such as tetrahedrons, hexahedrons, etc.). These units are connected to each other through nodes. The density of the mesh should be determined based on the accuracy of the simulation and the computing resources. The mesh should be appropriately encrypted in key areas where the jacking pipe interacts with the soil (such as near the contact surface). The preset constraints and binding parameters are bound to the geometric model, and actual relevant parameters are added to the geometric model to facilitate solving according to the model. In addition, the construction stages of the simulation are defined according to the actual construction process. For example, the excavation stage, the jacking stage, the grouting stage, etc. can be defined, and the loading conditions and boundary condition changes for each stage can be set. The corresponding loads and constraints are applied during the construction stage. For example, a jacking force can be applied in the jacking stage, and the effect of grouting pressure can be simulated in the grouting stage.

[0095] In an optional embodiment of the present invention, step 105 includes:

[0096] Step 1051, obtaining and solving control parameters;

[0097] Specifically, the solution control parameter may be at least one of solution accuracy, convergence criterion, number of iterations, etc., so that when the solution control parameter is reached, the model stops calculating and outputs the simulation result.

[0098] Step 1052: Run the three-dimensional finite element model according to the solved control parameters to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe.

[0099] Specifically, the finite element analysis software can be used to run a three-dimensional finite element model. The three-dimensional finite element model will calculate stress and deformation based on the input geometric model, material properties, boundary conditions, contact relationships, loading conditions and other information, and iteratively solve the nodal force and nodal displacement of the unit body until the convergence criteria in the solution control parameters are met or the set number of iterations or solution accuracy is reached.

[0100] Here, the simulation results of the interaction between the jacking pipe and the surrounding soil include internal force distribution, deformation, stress cloud diagram, and the interaction between the jacking pipe and the surrounding soil, such as the stress distribution, displacement, and whether damage occurs in the soil.

[0101] In an optional embodiment of the present invention, the method further comprises the following steps:

[0102] Step 106, adjusting the preset pipe jacking construction strategy according to the simulation result of the interaction between the pipe jacking and the soil surrounding the pipe jacking to obtain an adjustment result;

[0103] Specifically, it is necessary to analyze the simulation results of the interaction between the jacking pipe and the soil around it, such as the soil stress distribution, observing the stress distribution of the soil in the simulation results, especially the stress concentration area and stress change area of the soil around the jacking pipe. The high stress area may indicate that the soil is prone to damage or deformation; soil displacement, analyzing the displacement of the soil during the jacking construction process, especially the surface settlement and horizontal displacement. A large displacement may mean that the soil is not stable enough and measures need to be taken to reinforce it; damage, checking whether there are soil damage phenomena in the simulation results, such as cracks, landslides, etc. These damage phenomena will directly affect the safety of the jacking construction and the stability of the surrounding environment.

[0104] Then make the following adjustments to the preset pipe jacking construction strategy:

[0105] Adjust the jacking force. If the simulation results show that excessive jacking force causes soil stress concentration or damage, the jacking force should be appropriately reduced to minimize soil disturbance and damage. Conversely, if insufficient jacking force makes pipe advancement difficult, the jacking force can be appropriately increased, but ensure that it does not exceed the soil's bearing capacity.

[0106] Adjust grouting parameters. Grouting is a common method used in pipe jacking construction to reduce drag and strengthen soil. Based on simulation results, parameters such as grouting pressure, flow rate, and grouting material properties can be adjusted to improve soil stress and displacement.

[0107] Optimize the pipe jacking construction plan. If simulation results show that pipe jacking construction has an excessive impact on the surrounding soil, consider optimizing the construction plan, such as changing the direction, angle, or depth of the pipe jacking to reduce disturbance and damage to the soil. Also, consider adding support structures or taking other reinforcement measures to improve soil stability.

[0108] Adjust the construction speed. Too fast a construction speed may cause the soil to fail to adapt to deformation in time and cause damage. Therefore, the construction speed can be adjusted according to the simulation results to ensure that the soil has enough time to adapt to deformation and remain stable.

[0109] Furthermore, during construction, monitoring must be strengthened, with real-time recording of soil stress, displacement, and damage. Monitoring results should be compared and analyzed with simulation results to identify problems and implement appropriate adjustments. Furthermore, an effective feedback mechanism should be established to promptly communicate actual construction progress to the design and construction teams, enabling timely adjustments to the pre-set pipe jacking strategy.

[0110] Step 107: Determine a recommended pipe jacking construction plan based on the adjustment result.

[0111] Specifically, the results of adjusting the contents of the preset pipe jacking construction strategy described above may be summarized to form a report as a recommended pipe jacking construction plan for reference by the construction unit.

[0112] A specific embodiment of the model information processing method for composite formation pipe jacking construction according to the embodiment of the present invention is:

[0113] Step 111, obtain data.

[0114] The outer diameter data, thickness data, length data and material properties of the jacking pipe are obtained according to the drawings, plans or actual measurements of the jacking pipe construction design; the thickness data and composition data of the thixotropic mud layer are obtained according to the construction experience or design requirements (for example, the thixotropic mud layer includes 8% bentonite, 0.4% sodium carbonate, 0.15% additives and clean water, wherein the additives may include sodium carboxymethyl cellulose, xanthan gum and polyacrylamide); soil layer data, seepage data, geological structure data, rock and soil physical and mechanical parameters, shear strength index, compressibility index, rock and soil permeability and soil material properties are obtained through geological survey.

[0115] Earth pressure cells can also be installed on the outer wall of the jacking pipe or in the nearby soil to measure the pressure at the interface between the soil and the pipe in real time, generating real-time earth pressure data. Pressure sensors can also be installed inside or near the jacking pipe to measure changes in water pressure in real time, generating real-time water pressure data. Real-time earth and water pressure data can help adjust the finite element model in real time during the jacking process, improving the accuracy of simulation results.

[0116] Step 112: pre-process the data.

[0117] The accuracy of the acquired data can be verified by comparing it with design drawings, on-site measurement records, construction specifications or design requirements, and actual survey results to replace erroneous data, delete duplicate data, etc. The acquired data can also be organized into a table format to facilitate subsequent binding of the data to the model.

[0118] Step 113: Obtain a geometric model based on the preprocessed data.

[0119] According to the acquired data, a jacking pipe geometric model, a geometric model of the soil around the jacking pipe, and a geometric model of the thixotropic mud layer are created in a three-dimensional modeling software, wherein the thixotropic mud layer geometric model is set between the jacking pipe geometric model and the geometric model of the soil around the jacking pipe.

[0120] Step 114: construct a three-dimensional finite element model.

[0121] The obtained preset boundary conditions, contact relationship data, material properties of the jacking pipe, soil material properties, and thixotropic mud material properties are bound to the geometric model to obtain a three-dimensional finite element model.

[0122] Here, the real-time soil pressure and water pressure data can be compared with the theoretical values calculated by the 3D finite element model. If the difference is greater than a preset difference, the 3D finite element model needs to be adjusted to improve its accuracy. Adjustments can include: adjusting the elastic modulus, Poisson's ratio, density, and other parameters of the soil based on the real-time soil pressure and water pressure data; adjusting the model's boundary conditions based on the actual jacking construction conditions, such as considering the influence of groundwater and correcting the water level and seepage conditions in the model; adjusting the jacking speed and jacking force of the jacking pipe based on the real-time soil pressure and water pressure data; and refining and encrypting the mesh in key areas around the jacking pipe to improve the model's calculation accuracy. By continuously adjusting the 3D finite element model based on the real-time soil pressure and water pressure data during the jacking process, the subsequent simulation results output by the 3D finite element model, such as surface settlement, are more accurate.

[0123] Step 115 , obtaining simulation results of the interaction between the jacking pipe and the soil surrounding the jacking pipe.

[0124] Run the three-dimensional finite element model in the finite element analysis software until the preset convergence criterion, the set number of iterations, or the preset solution accuracy is reached, and the simulation results of the interaction between the jacking pipe and the surrounding soil are obtained, such as internal force distribution, deformation, stress cloud map, and the interaction between the jacking pipe and the surrounding soil, such as soil stress distribution, displacement, whether damage occurs, surface settlement, etc.

[0125] Step 116: Adjust the preset pipe jacking construction strategy.

[0126] Based on the simulation results of the interaction between the jacking pipe and the soil around it, the jacking force, grouting parameters (such as grouting thickness, etc.), jacking construction plan, construction speed, etc. in the preset jacking construction strategy are adjusted to improve safety.

[0127] Step 117: Determine the recommended pipe jacking construction plan.

[0128] The adjustment results of the preset pipe jacking construction strategy will be summarized and output in the form of a report or table for reference by the construction unit.

[0129] The model information processing method for composite stratum jacking construction of the embodiment of the present invention can adjust the jacking construction strategy by simulating the interaction between the jacking pipe and the soil around the jacking pipe, which is used as a reference for the construction unit, thereby improving the safety and efficiency of the construction process. The present invention monitors various data of the jacking construction in real time, adjusts the finite element model based on the real-time data, and then predicts subsequent construction results (such as surface settlement, etc.) based on the model calculation, and then adjusts the construction strategy (jacking force, grouting layer thickness, etc.) according to the predicted results to achieve the purpose of optimizing and guiding construction.

[0130] like Figure 2 As shown, an embodiment of the present invention provides a model information processing device 200 for pipe jacking construction in composite formations, comprising:

[0131] Acquisition module 201, for acquiring pipe jacking construction data and geological data;

[0132] A first processing module 202 is configured to preprocess the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data;

[0133] A second processing module 203 is configured to obtain a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data;

[0134] A third processing module 204 is configured to obtain a three-dimensional finite element model based on the geometric model and preset constraints;

[0135] The fourth processing module 205 is used to obtain a simulation result of the interaction between the jacking pipe and the soil surrounding the jacking pipe according to the three-dimensional finite element model.

[0136] Optionally, obtain pipe jacking construction data and geological data, including:

[0137] Obtain data on the outer diameter, thickness, length, thickness of the thixotropic mud layer, and construction stage of the jacking pipe;

[0138] Obtain soil layer data, seepage data and geological structure data;

[0139] Obtaining pipe jacking construction data according to the pipe jacking outer diameter data, the pipe jacking thickness data, the pipe jacking length data, the thickness data of the thixotropic mud layer, and the construction stage data;

[0140] Geological data is obtained according to the soil layer data, the seepage data and the geological structure data.

[0141] Optionally, preprocessing the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data includes:

[0142] Verifying the pipe jacking construction data and the geological data to obtain a verification result;

[0143] Adjusting the pipe jacking construction data and the geological data according to the verification result to obtain adjusted pipe jacking construction data and adjusted geological data;

[0144] The adjusted pipe jacking construction data and the adjusted geological data are grouped to obtain pre-processed pipe jacking construction data and pre-processed geological data.

[0145] Optionally, obtaining a geometric model based on the preprocessed pipe jacking construction data and the preprocessed geological data includes:

[0146] Obtaining a pipe jacking model according to the pre-processed pipe jacking construction data;

[0147] Obtaining a soil model and a thixotropic slurry layer model around the jacking pipe according to the preprocessed geological data;

[0148] A geometric model is obtained according to the jacking pipe model, the soil model around the jacking pipe and the thixotropic slurry layer model.

[0149] Optionally, obtaining a three-dimensional finite element model according to the geometric model and preset constraints includes:

[0150] Obtain preset boundary conditions and contact relationship data;

[0151] Determining preset constraint conditions according to the preset boundary conditions and the contact relationship data;

[0152] determining binding parameters according to the pre-processed pipe jacking construction data and the pre-processed geological data;

[0153] The preset constraint conditions, the binding parameters and the geometric model are bound to obtain a three-dimensional finite element model.

[0154] Optionally, obtaining simulation results of the interaction between the jacking pipe and the soil surrounding the jacking pipe based on the three-dimensional finite element model includes:

[0155] Obtain solution control parameters;

[0156] The three-dimensional finite element model is run according to the solution control parameters to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe.

[0157] Optionally, the device further includes:

[0158] A fifth processing module 206 adjusts the preset pipe jacking construction strategy according to the simulation result of the interaction between the pipe jacking and the soil surrounding the pipe jacking to obtain an adjustment result;

[0159] The sixth processing module 207 determines a recommended pipe jacking construction plan based on the adjustment result.

[0160] The model information processing device for composite stratum jacking construction proposed in an embodiment of the present invention obtains jacking construction data and geological data, preprocesses them, and then obtains a geometric model based on the preprocessed jacking construction data and the preprocessed geological data. Furthermore, combined with preset constraints, a three-dimensional finite element model is obtained. The three-dimensional finite element model is used to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe. This can improve the accuracy of the simulation results of the interaction between the jacking pipe and the soil around the jacking pipe, provide a reference for the jacking construction plan, and has the advantages of high accuracy and processing efficiency.

[0161] It should be noted that the device is a device corresponding to the above method, and all implementations in the above method embodiment are applicable to the embodiment of the device and can achieve the same technical effects, which will not be described in detail in this embodiment.

[0162] An embodiment of the present invention further provides a computing device comprising: a processor and a memory storing a computer program. When the computer program is executed by the processor, the computer program performs the method described in any of the above embodiments. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effects. These are not further described in this embodiment.

[0163] An embodiment of the present invention further provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described in any of the above embodiments. All implementations in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects. These are not further described in this embodiment.

[0164] It should be noted that, in the above embodiments, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the implementation methods of the above embodiments is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0165] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A model information processing method for pipe jacking construction in composite formations, characterized in that: include: Obtain pipe jacking construction data and geological data; Preprocessing the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data; Obtaining a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data; Obtaining a three-dimensional finite element model according to the geometric model and preset constraints; According to the three-dimensional finite element model, a simulation result of the interaction between the jacking pipe and the soil surrounding the jacking pipe is obtained; Among them, obtaining pipe jacking construction data and geological data includes: Obtaining data on the outer diameter of the jacking pipe, the thickness of the jacking pipe, the length of the jacking pipe, the thickness of the thixotropic mud layer, the composition of the thixotropic mud layer, and construction stage data; determining the outer diameter of the jacking pipe, the thickness of the jacking pipe, and the length of a single section of the jacking pipe based on actual measurements; obtaining the total length of the jacking pipe based on the length of a single section of the jacking pipe and the number of jacking pipes used; the jacking pipe length data includes the length of a single section of the jacking pipe, the number of jacking pipes used, and the total length of the jacking pipe; Acquire soil layer data, seepage data, and geological structure data; the soil layer data includes soil layer distribution data and soil layer property data; the seepage data includes groundwater level and hydrogeological conditions; the geological structure data includes geological structure and fault conditions; The jacking construction data is obtained based on the jacking pipe outer diameter data, the jacking pipe thickness data, the jacking pipe length data, the thickness data of the thixotropic mud layer, and the construction stage data; the jacking construction data includes the jacking pipe outer diameter data, the jacking pipe thickness data, the jacking pipe length data, the thickness data of the thixotropic mud layer, the composition data of the thixotropic mud layer, and the construction stage data, and also includes jacking pipe material properties, that is, physical properties of the jacking pipe such as elastic modulus, Poisson's ratio, and density are defined according to the material of the jacking pipe; Obtaining geological data based on the soil layer data, the seepage data, and the geological structure data; the geological data includes soil layer data, seepage data, geological structure data, rock and soil physical and mechanical parameters, shear strength index, compressibility index, rock and soil permeability, and soil material properties, that is, defining physical properties of different soil layers based on geological survey results, including elastic modulus, Poisson's ratio, internal friction angle, and cohesion; The method of preprocessing the pipe jacking construction data and the geological data to obtain the preprocessed pipe jacking construction data and the preprocessed geological data includes: The pipe jacking construction data and the geological data are verified to obtain a verification result; wherein the accuracy of the pipe jacking construction data is verified by comparing with design drawings and on-site measurement records; wherein the thickness data and the composition data of the thixotropic mud layer are verified by verifying whether they comply with construction specifications or design requirements; wherein the construction stage data are verified by verifying whether the division of construction stages is reasonable and whether it covers the key links of the entire pipe jacking construction process; wherein the geological data are compared with the actual survey results again to verify whether there is any data that is inconsistent with the actual survey results; The pipe jacking construction data and the geological data are adjusted according to the verification results to obtain adjusted pipe jacking construction data and adjusted geological data; the adjustment method is to replace erroneous data in the pipe jacking construction data and the geological data with correct data from design drawings, on-site measurement records, and actual survey results; duplicate, erroneous, or unreasonable data in the pipe jacking construction data and the geological data are deleted; the adjustment of the thickness data of the thixotropic mud layer is to increase the thickness of the thixotropic mud layer, and the adjustment of the composition data of the thixotropic mud layer is to adjust the proportion of a certain component; The adjusted pipe jacking construction data and the adjusted geological data are grouped to obtain pre-processed pipe jacking construction data and pre-processed geological data; the adjusted pipe jacking construction data and the adjusted geological data are divided into three groups according to the construction stage data: excavation stage, jacking stage, and grouting stage; Wherein, a geometric model is obtained based on the pre-processed pipe jacking construction data and the pre-processed geological data, including: Obtaining a pipe jacking model based on the pre-processed pipe jacking construction data; creating a geometric model of the pipe jacking, i.e., the pipe jacking model, according to the pipe jacking outer diameter data, pipe jacking thickness data, and pipe jacking length data in the pre-processed pipe jacking construction data, wherein the pipe jacking model is a single section or a plurality of sections spliced together; According to the preprocessed geological data, a soil model around the jacking pipe and a thixotropic mud layer model are obtained; according to the preprocessed geological data, a soil model around the jacking pipe is created, and a thixotropic mud layer model is added between the jacking pipe and the surrounding soil, wherein the thickness of the thixotropic mud layer is consistent with the thickness data of the thixotropic mud layer; A geometric model is obtained based on the pipe jacking model, the soil model around the pipe jacking, and the thixotropic slurry layer model; the pipe jacking model is combined with the soil model around the pipe jacking, the pipe jacking model is embedded in the soil model around the pipe jacking, and the model position is adjusted to obtain a geometric model; According to the geometric model and the preset constraints, a three-dimensional finite element model is obtained, including: Obtain preset boundary conditions and contact relationship data; the preset boundary conditions are the boundary conditions of the soil model around the jacking pipe, which can be any of fixed boundaries, free boundaries, or rolling boundaries; the contact relationship data includes: The pipe-soil friction resistance is calculated according to f1=(pμ1+C1)u1; where f1 is the pipe-soil friction resistance per unit length, p is the pipe-soil contact pressure per unit length, μ1 is the pipe-soil friction coefficient, ranging from 0.1 to 0.3, C1 is the pipe-soil cohesion, and u1 is the pipe-soil contact width; according to The calculated unit area slurry sliding friction resistance; where τ is the unit area slurry sliding friction resistance, τ d is the ultimate dynamic shear force, K is the mud consistency coefficient, V is the pipe jacking speed, d is the mud jacket thickness, and n is the mud fluidity index; Determining preset constraint conditions based on the preset boundary conditions and the contact relationship data; the preset constraint conditions include any one of a fixed boundary, a free boundary, or a rolling boundary, and also include contact relationships between the jacking pipe and the soil, and between the thixotropic slurry layer, the jacking pipe, and the soil; Determine binding parameters based on the pre-processed pipe jacking construction data and the pre-processed geological data; wherein the binding parameters include material properties of the pipe jacking, soil material properties, and thixotropic mud material properties; wherein the material properties of the pipe jacking are physical properties of elastic modulus, Poisson's ratio, and density defined according to the material of the pipe jacking; the soil material properties are physical properties of different soil layers defined according to geological survey results, including elastic modulus, Poisson's ratio, internal friction angle, and cohesion; the thixotropic mud material properties are determined based on the composition data of the thixotropic mud layer, and define the mechanical properties of the thixotropic mud, including friction coefficient, fluidity, density, viscosity, and elastic modulus; The preset constraints and the binding parameters are bound to the geometric model to obtain a three-dimensional finite element model; the geometric model is meshed and discretized into a finite number of unit bodies, which are interconnected by nodes, and the mesh is encrypted in the key area where the jacking pipe interacts with the soil; the preset constraints and the binding parameters are bound to the geometric model accordingly, actual relevant parameters are added to the geometric model, and the simulated construction stage is defined according to the actual construction process.

2. The model information processing method for composite stratum pipe jacking construction according to claim 1 is characterized in that: Based on the three-dimensional finite element model, simulation results of the interaction between the jacking pipe and the soil surrounding the jacking pipe are obtained, including: Obtain solution control parameters; The three-dimensional finite element model is run according to the solution control parameters to obtain simulation results of the interaction between the jacking pipe and the soil around the jacking pipe.

3. The model information processing method for composite stratum pipe jacking construction according to claim 1 is characterized in that: Also includes: Adjusting a preset pipe jacking construction strategy according to a simulation result of the interaction between the pipe jacking and the soil surrounding the pipe jacking to obtain an adjustment result; Based on the adjustment results, a recommended plan for pipe jacking construction is determined.

4. A model information processing device for pipe jacking construction in composite formations, characterized in that: include: Acquisition module, used to obtain pipe jacking construction data and geological data; A first processing module is used to preprocess the pipe jacking construction data and the geological data to obtain preprocessed pipe jacking construction data and preprocessed geological data; A second processing module is used to obtain a geometric model based on the pre-processed pipe jacking construction data and the pre-processed geological data; A third processing module is used to obtain a three-dimensional finite element model according to the geometric model and preset constraints; a fourth processing module, configured to obtain a simulation result of the interaction between the jacking pipe and the soil surrounding the jacking pipe based on the three-dimensional finite element model; Among them, obtaining pipe jacking construction data and geological data includes: Obtaining data on the outer diameter of the jacking pipe, the thickness of the jacking pipe, the length of the jacking pipe, the thickness of the thixotropic mud layer, the composition of the thixotropic mud layer, and construction stage data; determining the outer diameter of the jacking pipe, the thickness of the jacking pipe, and the length of a single section of the jacking pipe based on actual measurements; obtaining the total length of the jacking pipe based on the length of a single section of the jacking pipe and the number of jacking pipes used; the jacking pipe length data includes the length of a single section of the jacking pipe, the number of jacking pipes used, and the total length of the jacking pipe; Acquire soil layer data, seepage data, and geological structure data; the soil layer data includes soil layer distribution data and soil layer property data; the seepage data includes groundwater level and hydrogeological conditions; the geological structure data includes geological structure and fault conditions; The jacking construction data is obtained based on the jacking pipe outer diameter data, the jacking pipe thickness data, the jacking pipe length data, the thickness data of the thixotropic mud layer, and the construction stage data; the jacking construction data includes the jacking pipe outer diameter data, the jacking pipe thickness data, the jacking pipe length data, the thickness data of the thixotropic mud layer, the composition data of the thixotropic mud layer, and the construction stage data, and also includes jacking pipe material properties, that is, physical properties of the jacking pipe such as elastic modulus, Poisson's ratio, and density are defined according to the material of the jacking pipe; Obtaining geological data based on the soil layer data, the seepage data, and the geological structure data; the geological data includes soil layer data, seepage data, geological structure data, rock and soil physical and mechanical parameters, shear strength index, compressibility index, rock and soil permeability, and soil material properties, that is, defining physical properties of different soil layers based on geological survey results, including elastic modulus, Poisson's ratio, internal friction angle, and cohesion; The method of preprocessing the pipe jacking construction data and the geological data to obtain the preprocessed pipe jacking construction data and the preprocessed geological data includes: The pipe jacking construction data and the geological data are verified to obtain a verification result; wherein the accuracy of the pipe jacking construction data is verified by comparing with design drawings and on-site measurement records; wherein the thickness data and the composition data of the thixotropic mud layer are verified by verifying whether they comply with construction specifications or design requirements; wherein the construction stage data are verified by verifying whether the division of construction stages is reasonable and whether it covers the key links of the entire pipe jacking construction process; wherein the geological data are compared with the actual survey results again to verify whether there is any data that is inconsistent with the actual survey results; The pipe jacking construction data and the geological data are adjusted according to the verification results to obtain adjusted pipe jacking construction data and adjusted geological data; the adjustment method is to replace erroneous data in the pipe jacking construction data and the geological data with correct data from design drawings, on-site measurement records, and actual survey results; duplicate, erroneous, or unreasonable data in the pipe jacking construction data and the geological data are deleted; the adjustment of the thickness data of the thixotropic mud layer is to increase the thickness of the thixotropic mud layer, and the adjustment of the composition data of the thixotropic mud layer is to adjust the proportion of a certain component; The adjusted pipe jacking construction data and the adjusted geological data are grouped to obtain pre-processed pipe jacking construction data and pre-processed geological data; the adjusted pipe jacking construction data and the adjusted geological data are divided into three groups according to the construction stage data: excavation stage, jacking stage, and grouting stage; Wherein, a geometric model is obtained based on the pre-processed pipe jacking construction data and the pre-processed geological data, including: Obtaining a pipe jacking model based on the pre-processed pipe jacking construction data; creating a geometric model of the pipe jacking, i.e., the pipe jacking model, according to the pipe jacking outer diameter data, pipe jacking thickness data, and pipe jacking length data in the pre-processed pipe jacking construction data, wherein the pipe jacking model is a single section or a plurality of sections spliced together; According to the preprocessed geological data, a soil model around the jacking pipe and a thixotropic mud layer model are obtained; according to the preprocessed geological data, a soil model around the jacking pipe is created, and a thixotropic mud layer model is added between the jacking pipe and the surrounding soil, wherein the thickness of the thixotropic mud layer is consistent with the thickness data of the thixotropic mud layer; A geometric model is obtained based on the pipe jacking model, the soil model around the pipe jacking, and the thixotropic slurry layer model; the pipe jacking model is combined with the soil model around the pipe jacking, the pipe jacking model is embedded in the soil model around the pipe jacking, and the model position is adjusted to obtain a geometric model; According to the geometric model and the preset constraints, a three-dimensional finite element model is obtained, including: Obtain preset boundary conditions and contact relationship data; the preset boundary conditions are the boundary conditions of the soil model around the jacking pipe, which can be any of fixed boundaries, free boundaries, or rolling boundaries; the contact relationship data includes: The pipe-soil friction resistance is calculated according to f1=(pμ1+C1)u1; where f1 is the pipe-soil friction resistance per unit length, p is the pipe-soil contact pressure per unit length, μ1 is the pipe-soil friction coefficient, ranging from 0.1 to 0.3, C1 is the pipe-soil cohesion, and u1 is the pipe-soil contact width; according to The calculated unit area slurry sliding friction resistance; where τ is the unit area slurry sliding friction resistance, τ d is the ultimate dynamic shear force, K is the mud consistency coefficient, V is the pipe jacking speed, d is the mud jacket thickness, and n is the mud fluidity index; Determining preset constraint conditions based on the preset boundary conditions and the contact relationship data; the preset constraint conditions include any one of a fixed boundary, a free boundary, or a rolling boundary, and also include contact relationships between the jacking pipe and the soil, and between the thixotropic slurry layer, the jacking pipe, and the soil; Determine binding parameters based on the pre-processed pipe jacking construction data and the pre-processed geological data; wherein the binding parameters include material properties of the pipe jacking, soil material properties, and thixotropic mud material properties; wherein the material properties of the pipe jacking are physical properties of elastic modulus, Poisson's ratio, and density defined according to the material of the pipe jacking; the soil material properties are physical properties of different soil layers defined according to geological survey results, including elastic modulus, Poisson's ratio, internal friction angle, and cohesion; the thixotropic mud material properties are determined based on the composition data of the thixotropic mud layer, and define the mechanical properties of the thixotropic mud, including friction coefficient, fluidity, density, viscosity, and elastic modulus; The preset constraints and the binding parameters are bound to the geometric model to obtain a three-dimensional finite element model; the geometric model is meshed and discretized into a finite number of unit bodies, which are interconnected by nodes, and the mesh is encrypted in the key area where the jacking pipe interacts with the soil; the preset constraints and the binding parameters are bound to the geometric model accordingly, actual relevant parameters are added to the geometric model, and the simulated construction stage is defined according to the actual construction process.

5. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 3 is performed.

6. A computer-readable storage medium, characterized in that The device stores instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 3.

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