Railway cutting sand retaining wall design optimization method based on analogue simulation

Abstract

The invention discloses a railway cutting sand retaining wall design optimization method based on analogue simulation. The method comprises the steps that a three-dimensional anemograph array and a rotary vortex detector are arranged outside a sand retaining wall; establishing a three-dimensional model of the sand retaining wall based on environmental data collected by the three-dimensional anemograph array and the rotary vortex detector; based on the established three-dimensional model of the sand retaining wall, adjusting the height of the sand retaining wall, putting the adjusted environmental data into a gas-solid two-phase flow model under an Euler-Lagrange framework, and determining an optimal height; after the optimal height is selected, the porosity is adjusted, the adjusted environment data are put into an Euler-Lagrange vortex flow model, and the optimal porosity is determined; and based on the optimal height and the optimal porosity data, an optimized sand blocking wall is established, and a preset weather guarantee measure system is established. The method has the beneficial effects that the unit sand interception effect is improved, the life cycle of the railway cutting can be prolonged at low cost, and the dynamic balance between the protection strength and the energy consumption is achieved.

Description

Technical Field

[0001] The present invention relates to the field of environmental management, and in particular to a railway cutting sand retaining wall design optimization method based on simulation. Background Art

[0002] The sunken structure of newly constructed local railway cuttings is more likely to lead to severe sand accumulation along the track below the cutting, becoming a major cause of sand damage along the railway. Currently, common simulation methods for sandstorm protection measures are mostly designed for flat bed surfaces. Therefore, there is an urgent need to analyze the interaction between turbulence and sand particles under sandstorm conditions in cuttings to protect railway projects from sandstorm disasters. To address railway sand damage, scholars have proposed numerous sand control measures through extensive experimental analysis, primarily biological and mechanical sand control. However, due to the limitations of biological sand control, it is not universally applicable. In areas where biological sand control is not suitable, mechanical sand control should be used. There are many types of sand retaining walls, and their design parameters determine the project cost and sand control effectiveness.

[0003] At present, railway sand retaining walls are mainly laid out based on experience and lack unified standards, which often results in unsatisfactory sand retaining effects or waste of sand retaining materials.

[0004] Currently, there is no good method on the market to solve the above problems. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems and / or the problems existing in the existing railway cutting sand retaining wall design optimization method based on simulation, the present invention is proposed.

[0007] Therefore, the problem to be solved by the present invention is how to provide an optimized railway sand retaining wall. In order to solve the above technical problems, the present invention provides the following technical solutions: a railway cutting sand retaining wall design optimization method based on simulation, which includes: A slanted plate sand retaining wall composed of reinforced concrete and columns is provided. A three-dimensional anemometer array and a rotating vortex detector are installed on the exterior of the sand retaining wall. Environmental data is collected based on the three-dimensional anemometer array and the rotating vortex detector to establish a three-dimensional model of the sand retaining wall. Based on the established three-dimensional model of the sand retaining wall, the environmental data was put into the gas-solid two-phase flow model under the Euler-Lagrangian framework to determine the optimal height; After selecting the optimal height, the environmental data and the optimal height data are put into the Euler-Lagrangian vortex flow model to determine the optimal porosity; The three-dimensional model of the sand retaining wall is optimized based on the preferred height and the preferred porosity, the inclined insert plate sand retaining wall is adjusted based on the optimized three-dimensional model of the sand retaining wall, and a preset weather protection measure system is established.

[0008] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation described in the present invention, the environmental data is placed in a gas-solid two-phase flow model under the Euler-Lagrangian framework, and the determination of the preferred height includes: Adjusting the height of the sand retaining wall, and calculating the sand interception rate and structural stress of different wind retaining wall heights based on the environmental data; The height of the sand retaining wall with the best sand interception rate and the structural stress of the sand retaining wall is selected as the preferred height; The sediment interception rate and structural stress values ​​are calculated based on the gas-solid two-phase flow model under the Euler-Lagrangian framework; In the gas-solid two-phase flow model under the Euler-Lagrangian framework, the Airy function is used to suppress height outliers, and in the gas-solid two-phase flow model under the Euler-Lagrangian framework, the exponential term is used to constrain structural stability.

[0009] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation according to the present invention, the step of placing the environmental data and the preferred height data into the Euler-Lagrangian vortex flow model to determine the preferred porosity includes: A nonlinear mapping between the geometric mean of vortex scale and the gamma function is established, and a second-order polylogarithm is introduced to control energy dissipation and establish an Euler-Lagrangian vortex flow model. Putting the sand retaining wall environmental data based on the preferred height into the Euler-Lagrangian vortex flow model; The optimal porosity is extracted based on the Euler-Lagrangian vortex flow model.

[0010] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation according to the present invention, the Euler-Lagrangian vortex flow model includes: In the Euler-Lagrangian vortex flow model, the gamma function is used to limit the pore morphology mutation, and the multi-logarithmic function is used to control the vortex resonance effect in the Euler-Lagrangian vortex flow model.

[0011] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation of the present invention, the establishment of a three-dimensional model of the sand retaining wall includes: A three-dimensional model is established by simulation software. In the three-dimensional model, it is assumed that gravel moves in a three-dimensional space and the wind direction moves along the x-axis.

[0012] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation according to the present invention, wherein: the optimizing the three-dimensional model of the sand retaining wall based on the preferred height and the preferred porosity, and adjusting the inclined insert plate sand retaining wall based on the optimized three-dimensional model of the sand retaining wall include: Construction is carried out in sections according to the preferred height, and dynamic curing intervals are set between adjacent construction stages; The main body of the sand retaining wall is formed using a gradient composite structure molding process; A breathable and curved functional component is embedded in the joint between the structural layers, and the morphological characteristics of the breathable and curved component form a spatial mapping relationship with the pore parameters.

[0013] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation of the present invention, the establishment of a preset weather protection measure system includes: Emergency response system for extreme rain and snow weather and strong wind weather response system; The emergency response system for extreme rain and snow weather includes: When the emergency response system for extreme rain and snow weather is triggered, the building ventilation structure is adjusted to open or close; Activate drainage facilities; Applying hydrophobic treatments to building pore structures; The said high wind weather protection system includes: Deploy a detachable wind and sand blocking device on the windward side of the sand retaining wall; Start the backup generator to ensure the operation of the monitoring system; Construction vehicles are arranged horizontally to form a temporary windbreak wall; The wind and sand blocking device comprises a quick-assembly support structure and a flexible interception net, and the support structure has a modular plug-in feature.

[0014] As a preferred solution of the railway cutting sand retaining wall design optimization method based on simulation of the present invention, the high wind weather protection system includes: When the three-dimensional anemometer array detects that the wind speed exceeds a wind speed threshold, the strong wind weather protection system is triggered.

[0015] In a second aspect, some embodiments of the present invention provide an electronic device comprising: one or more processors; a storage device on which one or more programs are stored, and when the one or more programs are executed by one or more processors, the one or more processors implement the method described in any implementation method of the above-mentioned first aspect.

[0016] In a third aspect, some embodiments of the present invention provide a computer-readable medium having a computer program stored thereon, wherein when the program is executed by a processor, the method described in any one of the implementations of the first aspect is implemented.

[0017] The beneficial effect of the present invention is that it proposes a design optimization method for railway cutting sand retaining walls based on simulation, which increases the sand interception effect. The sand interception rate reaches 91%, which is 19.7% higher than the traditional design, and the base stress is reduced by 16.2%. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 This is a flow chart of the railway cutting sand retaining wall design optimization method based on simulation in Example 1.

[0020] Figure 2 This is a side structural diagram of the railway cutting sand retaining wall design optimization method based on simulation in Example 1.

[0021] Figure 3 Schematic diagram of the electronic structure of the railway cutting sand retaining wall design optimization method based on simulation in Example 3. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0025] Example 1 Reference Figures 1 to 2 This is the first embodiment of the present invention, which provides a railway cutting sand retaining wall design optimization method based on simulation, which includes: S1: Build an inclined sand retaining wall composed of reinforced concrete and columns. The construction results are as follows: Figure 2 , as shown Figure 2 A side view of the sand retaining wall.

[0026] Based on the environmental data collected by the three-dimensional anemometer array and the rotating vortex detector, a three-dimensional model of a sand retaining wall is established, a slanted insert sand retaining wall composed of reinforced concrete and columns is built, and the three-dimensional anemometer array and the rotating vortex detector are installed outside the sand retaining wall; Based on the established three-dimensional model of the sand retaining wall, the height of the sand retaining wall is adjusted, and the adjusted environmental data is put into the gas-solid two-phase flow model under the Euler-Lagrangian framework to determine the optimal height; After selecting the optimal height, the porosity is adjusted and the adjusted environmental data is put into the Euler-Lagrangian vortex flow model to determine the optimal porosity; Based on the preferred height and preferred porosity data, an optimized sand retaining wall is established and a preset weather protection measure system is established.

[0027] S2: Establishing a three-dimensional model of the sand retaining wall based on environmental data collected by the three-dimensional anemometer array and the rotating vortex detector, wherein establishing the three-dimensional model based on the environmental data includes: The adjusted environmental data is placed into the gas-solid two-phase flow model under the Euler-Lagrangian framework to determine the optimal height including: Adjusting the height of the sand retaining wall, and calculating the sand interception rate and structural stress of different wind retaining wall heights based on the environmental data; The height of the sand retaining wall with the best sand interception rate and the structural stress of the sand retaining wall is selected as the preferred height; The method for calculating the sand interception rate and structural stress of different windbreak wall heights is to calculate using a gas-solid two-phase flow model under the Euler-Lagrangian framework; In the gas-solid two-phase flow model under the Euler-Lagrangian framework, the Airy function is used to suppress height outliers, and in the gas-solid two-phase flow model under the Euler-Lagrangian framework, the exponential term is used to constrain structural stability.

[0028] Adjusting the height of the sand retaining wall, and calculating the sand interception rate and structural stress of different wind retaining wall heights based on the environmental data; The height of the sand retaining wall with the best sand interception rate and the structural stress of the sand retaining wall is selected as the preferred height; The method of calculating the sand interception rate and structural stress of different windbreak wall heights refers to the calculation based on the gas-solid two-phase flow model under the Euler-Lagrangian framework; The height threshold of the windbreak wall is (0,5] meters. The Airy function is used to suppress height outliers in the gas-solid two-phase flow model under the Euler-Lagrangian framework, and the exponential term is used to constrain the structural stability in the gas-solid two-phase flow model under the Euler-Lagrangian framework.

[0029] The adjusted environmental data is placed into the gas-solid two-phase flow model under the Euler-Lagrangian framework to determine the optimal height including: Gas-solid two-phase flow model in the Euler-Lagrangian framework:

[0030] Character explanation: H* is the optimized height of gas-solid two-phase flow, z1 and z2 are the vertical integration boundaries, erfc is the complementary error function, is the fluid vortex vector, Φ is the potential function, t is the time, A i is the Airy function, is the average particle velocity, d 90 The particle size that passes 90% of the particles is τ i is the shear stress of the i-th layer, ρ p is the density of sand particles, C d is the drag coefficient, ∇P i is the pressure gradient of the i-th layer, ϑ i is the dynamic concentration of sand particles, and n is the number of vertical layers.

[0031] S4: After selecting the optimal height, adjust the porosity, put the adjusted environmental data into the Euler-Lagrange vortex flow model, and determine the optimal porosity; The adjusted environmental data are placed into the Euler-Lagrangian vortex flow model to determine the optimal porosity, including: Euler-Lagrangian vortex flow model:

[0032] ε opt is the optimal porosity, β is the turbulence attenuation coefficient, Li2 is the second-order polylogarithmic function, ζ rms is the root mean square value of the vortex intensity, ζ crit is the critical vortex strength, Λ j is the characteristic scale of the jth vortex, Λ0 is the reference vortex scale, and w j is the scale weight factor, Γ is the gamma function, φ is the pore curvature factor, φmax is the maximum allowable curvature, α is the morphological constraint index, and m is the number of effective vortices. The adjusted environmental data is placed in the Euler-Lagrangian vortex flow model to determine the optimal porosity: A nonlinear mapping between the geometric mean of vortex scale and the gamma function is established, and a second-order polylogarithm is introduced to control energy dissipation and establish an Euler-Lagrangian vortex flow model. Putting the sand retaining wall environmental data based on the preferred height into the Euler-Lagrangian vortex flow model; The Euler-Lagrangian vortex flow model includes: The porosity values ​​are [15%, 40%]. The gamma function is used to limit the pore morphology mutation in the Euler-Lagrangian vortex flow model, and the polylogarithmic function is used to control the vortex resonance effect in the Euler-Lagrangian vortex flow model.

[0033] S5: Based on the optimal height and optimal porosity data, an optimized sand retaining wall is established and an extreme weather protection system is established.

[0034] The optimized sand retaining wall based on the optimal height and optimal porosity data includes: Construction is carried out in sections according to the preferred height, with a curing period reserved between each section; The sand retaining wall is cast in layers; Embed curved breathable components between sand retaining wall layers, with the curvature of the curved breathable components customized based on the preferred porosity results. Segmented construction is performed according to the preferred height, with dynamic curing intervals set between adjacent construction stages. The main body of the sand retaining wall is formed using a gradient composite structure molding process; A breathable and curved functional component is embedded in the joint between the structural layers, and the morphological characteristics of the breathable and curved component form a spatial mapping relationship with the pore parameters.

[0035] The optimized sand retaining wall based on the optimal height and optimal porosity data includes: The construction is divided into three sections according to the preferred height, and a 24-hour curing period is reserved for each section; The sand retaining wall is cast in layers; Pre-buried ventilation pipes between the sand retaining wall layers, with the pipe curvature customized according to the preferred porosity result; The sand retaining wall is cast in layers, including: Pour 50cm per layer; Insert a vibrating rod to compact the concrete after pouring; After compaction with a vibrator, the surface is covered with plastic film to maintain moisture.

[0036] Establishing a system of pre-emptive weather safeguards includes: Emergency response system for extreme rain and snow weather and strong wind weather response system; The emergency response system for extreme rain and snow weather includes: When the emergency response system for extreme rain and snow weather is triggered, the building ventilation structure is adjusted to open or close; Activate drainage facilities; Applying hydrophobic treatments to building pore structures; The said high wind weather protection system includes: Deploy a detachable wind and sand blocking device on the windward side of the sand retaining wall; Start the backup generator to ensure the operation of the monitoring system; Construction vehicles are arranged horizontally to form a temporary windbreak wall; The wind and sand blocking device comprises a quick-assembly support structure and a flexible interception net, and the support structure has a modular plug-in feature.

[0037] 8. The railway cutting sand retaining wall design optimization method based on simulation according to claim 7, wherein the high wind weather protection system comprises: When the three-dimensional anemometer array detects that the wind speed exceeds a wind speed threshold, the strong wind weather protection system is triggered.

[0038] Example 2 The second embodiment of the present invention is different from the first embodiment in that it also includes the following test preparation and implementation process: Test site: The section between K985+200 and K985+500 of the Golmud section of the Qinghai-Tibet Railway was selected (the average number of days with strong winds of level 8 or above is ≥120 days per year, and the median particle size of sand is 0.35 mm). The test period covers the spring wind season (March-May).

[0039] Device configuration: Three-dimensional anemometer array: Vaisala WXT536 weather stations (range 0-60 m / s, three-dimensional vector accuracy ±0.5%) were installed, with one group arranged every 30 meters along the longitudinal direction of the sand retaining wall, and vertically layered at 0.5 m, 2 m, and 4 m intervals.

[0040] Vortex detection system: A Dantec Dynamics rotating hot wire anemometer (sampling rate 10kHz) was used, and three-level detection points were set at 5m, 10m, and 20m behind the wall.

[0041] Structural monitoring: Vibrating wire strain gauges (accuracy ±0.1% FS) are implanted to monitor concrete stress, with a density of 2 measuring points per square meter.

[0042] Implementation steps: Benchmark model establishment: Traditional control section: vertical sand retaining wall (height 3.0m, thickness 0.8m, non-porous structure).

[0043] Initial parameters of the test section: inclined plate inclination angle 55°, column spacing 1.8m, initial height 3.5m, uniform porosity 18%.

[0044] Dynamic data collection.

[0045] Continuously record 12 sandstorm events (wind speed 12-28m / s) and simultaneously collect three-dimensional wind speed vector distribution (time resolution 0.1 second).

[0046] Frequency spectrum of vortex intensity (0.1-100 Hz band).

[0047] Thickness of sand deposits behind the wall (laser rangefinder accuracy ±1 mm).

[0048] Highly optimized stage: Import typical wind condition data (select wind speed 22m / s, sand content 1.2kg / m³) into the FLUENT gas-solid two-phase flow module.

[0049] The simulation height range was 3.0-4.0 m, with an iteration step of 0.2 m. The calculation was terminated when the change in sediment interception efficiency was less than 2%, and 1.8 m was selected as the optimal height (a 19% improvement in sediment interception efficiency compared to the traditional design). Porosity classification was optimized.

[0050] Gradient porosity specimens (18%, 22%, 25%, 28%, 30%) were produced.

[0051] The vortex attenuation characteristics were tested in a low-speed wind tunnel (wind speed 5-15m / s), and the flow field was verified by PIV particle imaging: When the porosity is 25%, the velocity of the vortex core region decreases by 47%.

[0052] Determine the non-uniform pore distribution scheme: 20% at the bottom, 25% in the middle, and 28% at the top.

[0053] Extreme Protection System Implementation: Deploy a retractable carbon fiber windbreak net (unfolded length 15m, tensile strength ≥5GPa).

[0054] Install a temperature and humidity adaptive sprinkler system (trigger conditions: relative humidity <30% and wind speed >18m / s).

[0055] Configure the structural health monitoring module (sampling rate 50Hz, wireless transmission delay <0.5 seconds).

[0056] Experimental data record table: Table 1: Performance comparison of sand retaining walls at different heights

[0057] Table 2: Porosity gradient optimization effect

[0058] Table 3: Effectiveness of extreme weather protection systems

[0059] Table 4: Comparison of operation and maintenance costs (unit: 10,000 yuan / km·year)

[0060] Table 5: Comparison of sensor data stability

[0061] Table 6: Life cycle cost analysis (20-year cycle)

[0062] Scientific verification of structural parameter optimization: The data in Table 1 show that at a height of 3.8 m, the sediment interception rate reaches 91%, a 19.7% improvement over the conventional 3.0 m design, and the base stress is reduced by 16.2%. This result overturns existing empirical formulas (which generally assume diminishing returns above 3.5 m) and demonstrates the ability of the gas-solid coupling model to accurately depict turbulent transport mechanisms.

[0063] Table 2 shows that the non-uniform pore distribution scheme reduced vortex intensity by 41.4% in the critical region (the middle 25%), validating the effectiveness of the Euler-Lagrangian vortex flow model in controlling local flow separation. While existing technologies generally employ homogeneous pore structures, this scheme achieves a breakthrough in functional zoning design.

[0064] The innovative features of the extreme protection system: Comparing the data in Table 3, the 72.4% reduction in structural displacement at Level 2 protection offsets the 83% reduction in energy consumption (Table 6). Existing technologies often employ fixed protective structures (such as permanent windbreaks). This solution achieves a dynamic balance between protection strength and energy consumption through an adjustable system.

[0065] The data in Table 5 proves that multi-source sensor fusion technology can reduce measurement errors by 68%-75%, overcoming the defect that traditional single-point monitoring is susceptible to local interference.

[0066] Economic breakthrough and sustainability: Table 4 shows that the optimized solution reduces annual O&M costs by 42.7%, and Table 6 further verifies a 32.6% reduction in total costs over a 20-year period. High-precision simulation technology reduces trial-and-error costs by 80%, resolving the pain point of existing designs relying on field testing.

[0067] Although the energy consumption of the protection system increased by 104% (Table 4), the average daily energy consumption was kept within a reasonable range (<50 kWh) through intelligent control (triggered only under extreme conditions).

[0068] Evidence of advanced technical principles: The height-porosity dual-variable optimization system (Table 1 + Table 2) shows a synergistic effect: at the optimal height of 3.8 m and the optimal porosity of 25%, the sediment interception efficiency per unit height reaches 23.9 kg / (m·%), which is 31.5% higher than the traditional solution.

[0069] The non-uniform pore distribution (Table 2) reduces sand penetration in key areas by 50.6%, demonstrating the effectiveness of the Euler-Lagrangian vortex flow model in optimizing energy dissipation paths. Existing technologies, lacking detailed flow field analysis, often result in a waste of pore resources.

[0070] Conclusion: This example uses 23 quantitative indicators in six categories to verify the creative breakthroughs of the method in the application of fluid mechanics mechanisms, structural adaptability design, and intelligent operation and maintenance systems: A multi-dimensional mapping model of height-porosity-flow field characteristics is established to solve the empirical design parameter island problem and develop a collaborative control algorithm for variable pore structure and active protection system.

[0071] The full life cycle cost is reduced by ≥30% compared with traditional solutions.

[0072] Example 3 Reference Figure 3 , which is the third embodiment of the present invention, differs from the first three embodiments in that: the railway cutting sand retaining wall design optimization method based on simulation includes: Reference below Figure 3 , which shows a schematic structural diagram of an electronic device 300 suitable for implementing some embodiments of the present invention. The electronic devices in some embodiments of the present invention may include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 3 The terminal device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0073] like Figure 3 As shown, electronic device 300 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 301, which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 302 or programs loaded from a storage device 308 into a random access memory (RAM) 303. RAM 303 also stores various programs and data required for the operation of electronic device 300. Processing device 301, ROM 302, and RAM 303 are interconnected via a bus 304. An input / output (I / O) interface 305 is also connected to bus 304.

[0074] Typically, the following devices may be connected to the I / O interface 305: an input device 306 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 307 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 308 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 309. The communication device 309 may allow the electronic device 300 to communicate with other devices wirelessly or by wire to exchange data. Figure 3 The electronic device 300 is shown with various devices, but it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed instead. Figure 3 Each block shown in the figure may represent one device, or may represent multiple devices as needed.

[0075] Furthermore, the storage medium of the embodiments of the present application stores program instructions capable of implementing all of the above methods, wherein the program instructions can be stored in the above storage medium in the form of a software product, including a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, or terminal devices such as a computer, server, mobile phone, or tablet.

[0076] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A railway cutting sand retaining wall design optimization method based on simulation, characterized in that: The following steps are involved: A slanted plate sand retaining wall composed of reinforced concrete and columns is provided. A three-dimensional anemometer array and a rotating vortex detector are installed on the exterior of the sand retaining wall. Environmental data is collected based on the three-dimensional anemometer array and the rotating vortex detector to establish a three-dimensional model of the sand retaining wall. Based on the established three-dimensional model of the sand retaining wall, the environmental data was put into the gas-solid two-phase flow model under the Euler-Lagrangian framework to determine the optimal height; After selecting the optimal height, the environmental data and the optimal height data are put into the Euler-Lagrangian vortex flow model to determine the optimal porosity; The three-dimensional model of the sand retaining wall is optimized based on the preferred height and the preferred porosity, the inclined insert plate sand retaining wall is adjusted based on the optimized three-dimensional model of the sand retaining wall, and a preset weather protection measure system is established.

2. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: Putting the environmental data into the gas-solid two-phase flow model under the Euler-Lagrangian framework and determining the optimal height includes: Adjusting the height of the sand retaining wall, and calculating the sand interception rate and structural stress of different wind retaining wall heights based on the environmental data; The height of the sand retaining wall with the best sand interception rate and the structural stress of the sand retaining wall is selected as the preferred height; The sediment interception rate and structural stress values ​​are calculated based on the gas-solid two-phase flow model under the Euler-Lagrangian framework; In the gas-solid two-phase flow model under the Euler-Lagrangian framework, the Airy function is used to suppress height outliers, and in the gas-solid two-phase flow model under the Euler-Lagrangian framework, the exponential term is used to constrain structural stability.

3. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: Putting the environmental data and the preferred height data into the Euler-Lagrangian vortex flow model to determine the preferred porosity includes: A nonlinear mapping between the geometric mean of vortex scale and the gamma function is established, and a second-order polylogarithm is introduced to control energy dissipation and establish an Euler-Lagrangian vortex flow model. Putting the sand retaining wall environmental data based on the preferred height into the Euler-Lagrangian vortex flow model; The optimal porosity is extracted based on the Euler-Lagrangian vortex flow model.

4. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: The Euler-Lagrangian vortex flow model includes: In the Euler-Lagrangian vortex flow model, the gamma function is used to limit the pore morphology mutation, and the multi-logarithmic function is used to control the vortex resonance effect in the Euler-Lagrangian vortex flow model.

5. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: The establishment of the three-dimensional model of the sand retaining wall includes: A three-dimensional model is established by simulation software. In the three-dimensional model, it is assumed that gravel moves in a three-dimensional space and the wind direction moves along the x-axis.

6. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: Optimizing the three-dimensional model of the sand retaining wall based on the preferred height and the preferred porosity, and adjusting the inclined insert plate sand retaining wall based on the optimized three-dimensional model of the sand retaining wall include: Construction is carried out in sections according to the preferred height, and dynamic curing intervals are set between adjacent construction stages; The main body of the sand retaining wall is formed using a gradient composite structure molding process; A breathable and curved functional component is embedded in the joint between the structural layers, and the morphological characteristics of the breathable and curved component form a spatial mapping relationship with the pore parameters.

7. The railway cutting sand retaining wall design optimization method based on simulation according to claim 1 is characterized in that: The establishment of a preset weather protection measure system includes: Emergency response system for extreme rain and snow weather and strong wind weather response system; The emergency response system for extreme rain and snow weather includes: When the emergency response system for extreme rain and snow weather is triggered, the building ventilation structure is adjusted to open or close; Activate drainage facilities; Applying hydrophobic treatments to building pore structures; The system for dealing with strong winds includes: Deploy a detachable wind and sand blocking device on the windward side of the sand retaining wall; Start the backup generator to ensure the operation of the monitoring system; Construction vehicles are arranged horizontally to form a temporary windbreak wall; The wind and sand blocking device comprises a quick-assembly support structure and a flexible interception net, and the support structure has a modular plug-in feature.

8. The railway cutting sand retaining wall design optimization method based on simulation according to claim 7 is characterized in that: The squall weather protection system includes: When the three-dimensional anemometer array detects that the wind speed exceeds a wind speed threshold, the strong wind weather protection system is triggered.

9. An electronic device, characterized in that include: one or more processors; a storage device having one or more programs stored thereon; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 8.

10. A computer-readable storage medium having executable instructions stored thereon, characterized in that When the instruction is executed by a processor, the processor implements the method according to any one of claims 1 to 8.

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