Method for erecting temporary crossing bridge for construction equipment access of operating line

Abstract

The present application relates to the technical field of temporary bridge erection, and particularly relates to a method for erecting a temporary crossing-track bridge for the access of business line construction equipment, which improves the safety, stability and efficiency of the temporary crossing-track bridge erection; the method comprises the following steps: obtaining multi-dimensional structure data and construction equipment basic parameters of a business line construction site; performing feasibility analysis on the multi-dimensional structure data to obtain a set of bridge erection support points; performing stress analysis on the construction equipment basic parameters to obtain a bridge load lower limit index; formulating a crossing-track temporary bridge erection scheme according to the set of bridge erection support points and the bridge load lower limit index; erecting a test bridge outside the site according to the crossing-track temporary bridge erection scheme, and performing a load test on the test bridge; obtaining a bridge erection optimization scheme according to the erection process and the load test result; and arranging construction materials and personnel to perform the crossing-track temporary bridge erection operation according to the bridge erection optimization scheme.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of temporary bridge erection, and particularly relates to a method for erecting a temporary bridge across a track for the access of construction equipment on a business line. BACKGROUND

[0002] In the construction process of a railway business line, large-scale construction equipment often needs to enter the site for operation. However, due to the continuity of the railway track and the uninterrupted operation, the access of the construction equipment is often subject to many restrictions. In particular, when it is necessary to cross the track, how to safely and efficiently erect a temporary bridge so that the construction equipment can smoothly pass through becomes a problem to be solved.

[0003] The traditional method for erecting a temporary bridge across a track often relies on experience and lacks scientific data support and systematic analysis methods. This method is not only inefficient, but also difficult to ensure the safety and stability of the bridge. In a complex business line construction site, due to the diversity of the site environment, track state and business line operation, the traditional erection method is not only low in efficiency, but also has great hidden dangers in safety and accuracy, and is easily affected by external environmental changes, leading to delays or safety problems in the construction process. SUMMARY

[0004] To solve the above technical problems, the present application provides a method for erecting a temporary bridge across a track for the access of construction equipment on a business line, which improves the safety, stability and efficiency of the temporary bridge erection.

[0005] In a first aspect, the present application provides a method for erecting a temporary bridge across a track for the access of construction equipment on a business line, which comprises:

[0006] Obtaining multi-dimensional structure data of a business line construction site and basic parameters of construction equipment;

[0007] Performing a feasibility analysis on the multi-dimensional structure data to obtain a set of bridge erection support points;

[0008] Performing a stress analysis on the basic parameters of the construction equipment to obtain a lower limit index of bridge load bearing;

[0009] According to the set of bridge erection support points and the lower limit index of bridge load bearing, a temporary bridge erection scheme across the track is developed;

[0010] According to the temporary bridge erection scheme across the track, a test bridge is erected outside the site, and a load bearing test is performed on the test bridge. According to the erection process and the load bearing test results, a bridge erection optimization scheme is obtained;

[0011] The bridge erection optimization scheme is applied to arrange construction materials and personnel to perform the erection operation of the temporary bridge across the track.

[0012] Furthermore, the multi-dimensional structural data includes on-site three-dimensional data, track status change data, and operational line data.

[0013] Furthermore, the method for obtaining the set of support points for the bridge construction includes:

[0014] Cleaning and preprocessing multi-dimensional structured data;

[0015] Based on the on-site three-dimensional data, an environmental and geological condition assessment was conducted to obtain the results of the on-site environmental impact analysis.

[0016] Based on the track condition change data, assess the impact of the bridge construction on the track;

[0017] Based on operational data of the railway lines, assess the impact of the construction and use of the aqueduct on railway operations;

[0018] The results of the on-site environmental impact analysis, the impact of the bridge construction on the track, and the impact of the bridge construction on railway operations were comprehensively evaluated to obtain a set of support points for the bridge construction.

[0019] Furthermore, methods for obtaining the lower limit index of the bridge's load-bearing capacity include:

[0020] Based on the total weight of the construction equipment and its distribution on the aqueduct, the maximum static load applied to the aqueduct by the equipment is calculated.

[0021] Dynamic analysis is performed on the dynamic loads generated when construction equipment moves on the bridge to obtain dynamic load data.

[0022] Based on the maximum static load and dynamic load data, the lower limit index of the bridge's load-bearing capacity is determined.

[0023] Furthermore, the methods for developing a temporary aqueduct construction plan across tracks include:

[0024] The bridge structure type is selected based on the set of support points and the lower load-bearing limit index.

[0025] Based on the load-bearing requirements and durability requirements of the aqueduct, select the building materials;

[0026] The span, width, and height of the aqueduct are determined based on the size and weight distribution of the construction equipment.

[0027] Design the support structure based on the set of support points;

[0028] Develop a construction process, including the order of bridge construction, construction time windows, and personnel division of labor;

[0029] Develop safety measures, including safety management at the construction site and emergency response procedures.

[0030] Furthermore, the method for erecting the test aqueduct includes:

[0031] According to the temporary bridge construction plan for crossing the track, prepare the necessary building materials, construction equipment and personnel;

[0032] Select an off-site location for constructing the test bridge;

[0033] According to the set of support points and structural design in the plan, the bridge was constructed on the off-site site.

[0034] After the test bridge was erected, a quality inspection was conducted.

[0035] Furthermore, the method for conducting load-bearing tests on the experimental aqueduct includes:

[0036] Prepare test loads for the simulated construction equipment to simulate the load effects of actual construction equipment on the bridge.

[0037] Install monitoring equipment, including strain gauges and displacement sensors, to monitor the strain and displacement of the bridge under load;

[0038] Gradually increase the test load to simulate the different positions and actions of construction equipment on the aqueduct;

[0039] Real-time recording and monitoring data are used to observe the strain and displacement changes of the bridge.

[0040] The monitoring data is organized and analyzed to assess the structural performance of the bridge under test loads and identify structural defects and safety hazards.

[0041] Furthermore, the method for obtaining the optimized scheme for bridge construction includes:

[0042] Based on the results of the load-bearing test, identify the problems existing in the bridge and analyze the causes of the problems;

[0043] For the identified problems, propose optimization measures;

[0044] The optimized scheme is calculated and analyzed to verify its feasibility and effectiveness;

[0045] Based on the verification results, an optimized plan for the construction of the pontoon bridge was determined.

[0046] Thirdly, this application provides an electronic device including a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor. The transceiver, the memory, and the processor are connected via the bus, and the computer program, when executed by the processor, implements the steps of any of the methods described above.

[0047] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0048] Compared with existing technologies, the beneficial effects of this invention are as follows: This method provides a comprehensive and accurate information foundation for the construction of the aqueduct by acquiring multi-dimensional structural data from the construction site of the operational railway line; the feasibility analysis and stress analysis based on the data can more accurately determine the support points and load-bearing capacity of the aqueduct, thereby improving the accuracy and scientific nature of the aqueduct construction; the lower limit index of the aqueduct load-bearing capacity obtained through stress analysis can ensure that the aqueduct has sufficient safety margin when bearing construction equipment, avoiding safety accidents such as collapse or damage; the construction and load-bearing tests of the experimental aqueduct further verify the feasibility and safety of the construction scheme, ensuring that the finally constructed aqueduct has high stability and reliability;

[0049] This method, through a systematic analysis and optimization process, can quickly formulate a bridge construction plan that conforms to the actual site conditions, thereby improving construction efficiency. At the same time, this method also has high flexibility and can adapt to changes in different site environments, track conditions and operating conditions of the railway line, ensuring that construction equipment can pass smoothly.

[0050] Traditional construction methods are easily affected by changes in the external environment, leading to delays or safety issues during construction. This method, through scientific data analysis and optimization, can minimize the impact of external environmental changes on bridge construction and ensure the smooth progress of the construction process.

[0051] In summary, the aforementioned method for constructing temporary cross-track bridges for the entry of construction equipment on operating lines not only improves the safety, stability, and efficiency of the construction of temporary cross-track bridges, but also greatly enhances the ability to cope with complex construction environments. Attached Figure Description

[0052] Fig. 1 This is a flowchart of the present invention;

[0053] Fig. 2 This is a flowchart of the method for developing a temporary aqueduct construction plan across tracks. Detailed Implementation

[0054] As will be apparent to those skilled in the art from the description of this application, this application can be implemented as a method, apparatus, electronic device, and computer-readable storage medium. Therefore, this application can be specifically implemented in the following forms: entirely hardware, entirely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software. Furthermore, in some embodiments, this application can also be implemented as a computer program product contained in one or more computer-readable storage media, which includes computer program code.

[0055] The aforementioned computer-readable storage medium may be any combination of one or more computer-readable storage media. Computer-readable storage media include: electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of computer-readable storage media include: portable computer disks, hard disks, random access memory, read-only memory, erasable programmable read-only memory, flash memory, optical fiber, optical disc read-only memory, optical storage devices, magnetic storage devices, or any combination thereof. In this application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0056] The acquisition, storage, use, and processing of data in this application all comply with relevant national laws and regulations.

[0057] This application describes the provided methods, apparatus, and electronic devices using flowcharts and / or block diagrams.

[0058] It should be understood that each block of a flowchart and / or block diagram, as well as combinations of blocks in a flowchart and / or block diagram, can be implemented by computer-readable program instructions. These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine that, when executed by a computer or other programmable data processing apparatus, creates means for implementing the functions / operations specified in the blocks of the flowchart and / or block diagram.

[0059] These computer-readable program instructions may also be stored in a computer-readable storage medium that enables a computer or other programmable data processing device to function in a particular manner. In this way, the instructions stored in the computer-readable storage medium produce an instruction apparatus product that includes the functions / operations specified in the blocks of a flowchart and / or block diagram.

[0060] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus or other device to produce a computer-implemented process, such that the instructions that execute on the computer or other programmable data processing apparatus provide a process for implementing the functions / operations specified in the blocks of the flowchart and / or block diagram.

[0061] This application will now be described with reference to the accompanying drawings.

[0062] Example 1: As Figs. 1-2 As shown, the method for erecting a temporary cross-track bridge for construction equipment access on an operational railway line according to the present invention specifically includes the following steps:

[0063] S1. Obtain multi-dimensional structural data and basic parameters of construction equipment at the construction site of the operational railway line; the multi-dimensional structural data includes on-site three-dimensional data, track condition change data, and operational railway line operation data.

[0064] On-site 3D data can reflect the actual spatial layout of the construction site, and the on-site 3D data includes:

[0065] Topography and landforms: Using technologies such as laser scanners, drone aerial photography, or satellite remote sensing, topographic maps and elevation information of the construction site are obtained to understand the natural features of the ground, such as undulations and gullies;

[0066] Building layout: Record the location, height, and structural type of existing buildings and structures on site, as well as the direction, spacing, and intersection of railway tracks;

[0067] Underground pipeline information: Through geological exploration and pipeline detection, we can understand the direction, depth and material of underground pipelines under the construction site in order to avoid damage to pipelines during the construction of the bridge.

[0068] Track condition change data reflects the current condition and future trends of railway tracks, and includes:

[0069] Track geometry: Measure the track gauge, level, elevation, direction and other geometric dimensions to ensure that the aqueduct can be well connected with the track after it is erected, and to ensure the smooth passage of construction equipment;

[0070] Track material and wear condition: Understanding the material and wear condition of the track allows for an assessment of its load-bearing capacity and stability, providing a basis for the design of the aqueduct.

[0071] Track maintenance records: Review the track maintenance history to understand recent maintenance items, maintenance time and maintenance results, so as to carry out necessary inspections and adjustments to the track before the bridge is erected;

[0072] Operating data for operational lines reflects the actual status and future plans of railway operations. This data includes:

[0073] Train timetable: Obtain train operation plans for the current and future period, and understand information such as train departure time, arrival time, speed and number to determine the time window for bridge construction and dismantling;

[0074] Train type: Understand the types and load conditions of trains passing through the construction site;

[0075] Emergency braking distance: Calculate the emergency braking distance based on the type and speed of the train to ensure that there is sufficient safety margin between the location of the aqueduct and the emergency braking distance of the train;

[0076] The basic parameters of the construction equipment include:

[0077] Equipment type and size: Understand the type, size, and weight of the construction equipment to ensure that the bridge can meet the equipment's passage requirements;

[0078] Equipment movement methods: Understanding the movement methods of construction equipment and its dynamic characteristics during the movement process provides a basis for dynamic load analysis in the design of the aqueduct;

[0079] Equipment operation requirements: Understand the special requirements of construction equipment during operation to ensure that the design of the bridge can meet the operational requirements of the equipment.

[0080] In this step, by acquiring multi-dimensional structural data such as on-site 3D data, track condition change data, and operational line data, as well as a detailed understanding of the basic parameters of the construction equipment, a comprehensive and accurate understanding of the actual situation at the construction site on the operational line can be obtained. This is helpful for subsequent construction planning, design, and execution, ensuring the smooth progress of construction activities. Measurement and analysis of track geometry, material, and wear conditions, as well as understanding train operation plans and types, help determine the optimal time window for the erection and dismantling of the aqueduct, avoiding unnecessary interference with railway operations. Simultaneously, based on information such as the type, size, and movement method of the construction equipment, a more practical aqueduct can be designed, improving construction safety and efficiency. By conducting geological exploration and pipeline detection, understanding the underground pipeline information beneath the construction site can prevent damage to pipelines during bridge construction and protect the safety of underground facilities. Simultaneously, recording the building layout helps avoid damage to existing structures during construction. A detailed understanding of the basic parameters of construction equipment helps in the rational allocation and use of construction resources based on equipment type, size, and operational requirements, thereby improving construction efficiency and reducing costs. The acquisition and analysis of multi-dimensional structural data and basic parameters of construction equipment provide a scientific basis for construction decisions, helping to formulate more reasonable and feasible construction plans, ensuring the smooth progress of construction activities and the safe and stable operation of the railway.

[0081] S2. Conduct a feasibility analysis on the multi-dimensional structural data to obtain a set of support points for the construction of the bridge.

[0082] Methods for obtaining the set of support points for the construction of the aqueduct include:

[0083] The multi-dimensional structured data is cleaned and preprocessed; noisy data is removed, and data from different sources are formatted in a unified manner for subsequent analysis.

[0084] Based on the on-site 3D data, a detailed environmental and geological condition assessment is conducted; the topographic undulations and gully distribution of the construction site are analyzed to assess the impact of the topography on the construction of the aqueduct; the location, height, and structural type of existing buildings and structures on the site are analyzed to determine their limitations and potential impacts on the construction of the aqueduct, and to assess whether it is necessary to demolish or move some buildings during the construction of the aqueduct, as well as the related costs and risks; through underground pipeline information obtained from geological exploration and pipeline detection, the direction, burial depth, and material of the pipelines are analyzed to assess the impact of the aqueduct construction on the underground pipelines, ensuring that the normal operation of the pipelines is not damaged or affected during the construction of the aqueduct;

[0085] Based on track condition change data, assess the impact of aqueduct construction on the track; measure the track's gauge, level, elevation, and orientation to assess whether it meets the requirements for aqueduct construction; analyze the trend of track geometry changes to predict track condition changes over a future period; understand the track's material and wear level to assess its load-bearing capacity and stability; analyze the impact of track wear on aqueduct construction, such as whether track reinforcement or aqueduct design adjustments are needed; review the track's maintenance history to understand recent maintenance projects, maintenance times, and maintenance effects; and assess the impact of track maintenance records on aqueduct construction.

[0086] Based on operational data of the railway lines, assess the potential impact of the construction and use of the aqueduct on railway operations; obtain current and future train operation plans, and analyze information such as train departure time, arrival time, speed, and number; determine the time window for the construction and dismantling of the aqueduct to avoid unnecessary interference with railway operations; calculate the emergency braking distance based on the type and speed of the train; and ensure that there is sufficient safety margin between the location of the aqueduct and the emergency braking distance of the train to cope with emergencies.

[0087] The analysis results of data from various dimensions are comprehensively evaluated to determine the feasibility of the bridge construction and to identify the optimal set of support points for the bridge construction.

[0088] In this step, multi-dimensional structural data was cleaned and preprocessed to remove noise and standardize the data format, providing an accurate and consistent data foundation for subsequent analysis. This ensured the accuracy and reliability of the analysis results and avoided misjudgments caused by inconsistent or erroneous data. Based on the on-site 3D data, a detailed assessment was conducted on the terrain undulations, gully distribution, and the location and structural types of buildings and structures. Information from geological exploration and pipeline detection was also considered, which helped identify potential risks and challenges. By analyzing the track's geometry, material, wear level, and maintenance history, the impact of the aqueduct construction on the track was accurately assessed. The study assessed the impact of the aqueduct construction on railway operations, ensuring that the aqueduct's construction would not compromise track stability and load-bearing capacity, while also preventing safety hazards caused by track issues. It also evaluated the impact of the aqueduct's construction and use on railway operations based on operational data, identifying reasonable time windows for construction and dismantling. Furthermore, it ensured that the aqueduct's construction would not cause unnecessary disruption to railway operations, guaranteeing smooth and safe railway operations. A comprehensive evaluation of the data from various dimensions determined the feasibility of the aqueduct construction and the optimal set of support points, ensuring the scientific and rational nature of the decision-making process and improving the success rate and efficiency of the aqueduct construction.

[0089] S3. Perform stress analysis on the basic parameters of the construction equipment to obtain the lower limit index of the bridge's load-bearing capacity.

[0090] Methods for obtaining the lower limit index of the load-bearing capacity of a bridle bridge include:

[0091] The maximum static load applied to the bridge by the equipment is calculated based on the total weight of the construction equipment and its distribution on the bridge. This process needs to take into account the differences in weight distribution under different working conditions of the equipment.

[0092] Dynamic analysis is conducted, taking into account the dynamic loads generated when construction equipment moves across the aqueduct; this includes evaluating the impact effect, vibration frequency, and amplitude of the equipment movement on the aqueduct.

[0093] Consider the impact of environmental factors on the equipment and the aqueduct, including additional loads caused by wind and temperature changes;

[0094] Analyze the overall stability of the bridge under construction equipment loads to ensure that the bridge will not overturn or slide under load.

[0095] Based on the analysis results, the type of material used in the aqueduct is determined, and the aqueduct structure is verified according to its mechanical properties. If the preliminary analysis shows that the existing design cannot meet the load-bearing requirements, the structural design of the aqueduct needs to be adjusted, such as adding support points, changing the cross-sectional shape or thickness of the beams, until the best design solution that can both ensure safety and achieve economy is found.

[0096] Based on the combined analysis results, the lower limit index of the bridge load-bearing capacity was determined. The lower limit index of the bridge load-bearing capacity is used to represent the minimum load-bearing capacity that the bridge must have to ensure that it can safely support the passage of the planned construction equipment. It not only reflects the structural strength of the bridge itself, but also indirectly reflects the safety redundancy of the entire system.

[0097] In this step, a detailed stress analysis of the construction equipment's foundation parameters allows for the accurate calculation of the bridge's lower load-bearing capacity index. This ensures the bridge has sufficient minimum load-bearing capacity to safely support the planned passage of construction equipment, significantly reducing safety risks caused by insufficient load-bearing capacity. The analysis considers weight distribution differences under different operating conditions, dynamic loads generated during movement, and the impact of environmental factors on the equipment and bridge, making the bridge design more realistic and improving its accuracy and reliability. Based on the analysis results, the bridge's structural design can be adjusted and optimized to achieve the best design scheme that ensures both safety and economy, helping to reduce construction costs and improve the project's economic benefits. The determination of the bridge's lower load-bearing capacity index not only reflects the bridge's structural strength but also indirectly reflects the safety redundancy of the entire system. This step provides a strong basis for construction decisions. Through meticulous stress analysis and structural design optimization, this step not only ensures the safety of construction activities but also improves the accuracy and economy of the bridge design.

[0098] S4. Based on the set of support points for the construction of the bridle and the lower limit index of the bridle's load-bearing capacity, formulate a temporary bridle construction plan for crossing the track.

[0099] Methods for developing plans for constructing temporary cross-track bridges include:

[0100] The bridge structure is selected based on the set of support points and the lower load-bearing limit index; the bridge structure includes beam bridges, arch bridges, suspension bridges, etc.

[0101] Based on the load-bearing requirements and durability requirements of the aqueduct, the building materials are selected; the building materials include steel, concrete, wood, etc.

[0102] Based on the size and weight distribution of the construction equipment, determine the span, width, and height of the aqueduct; ensure that the aqueduct can accommodate the construction equipment to pass smoothly, while considering a certain safety margin;

[0103] Based on the set of support points, the support structure is designed; this includes support columns, beams, connectors, etc., to ensure that the bridge has sufficient stability and stiffness when bearing loads.

[0104] Develop a detailed construction process, including the bridge construction sequence, construction time window, and personnel division of labor; ensure that construction activities can be carried out efficiently and in an orderly manner, while minimizing the impact on railway operations;

[0105] Develop comprehensive safety measures, including safety management at the construction site and emergency response procedures; ensure the safety of construction personnel and the safety of the bridge erection process;

[0106] The proposed temporary aqueduct construction plan across the track includes:

[0107] The scaffolding is constructed using a disc-lock scaffold; the longitudinal spacing of the uprights is 600mm, with some sections at 900mm and 300mm, and the transverse spacing is 600mm; the horizontal bar spacing is 500mm, and a steel pipe horizontal scissor brace is fully installed at the top horizontal bar; the main keel is made of channel steel laid vertically, the secondary keel is made of channel steel laid horizontally, and the secondary keel is the finished surface.

[0108] First, lay the first channel steel longitudinally between the sleepers, then lay the second channel steel transversely. Place the top support upside down on the second channel steel at the designed spacing, and then install the uprights.

[0109] The system is erected simultaneously from two platforms toward the middle. When the two platforms are joined together in the middle, the spacing between the uprights does not match the length modulus of the horizontal bars. Steel pipes are used for tying, with four horizontally arranged and two vertically arranged. The tying rods are connected to the uprights of the frame through fasteners, with two connection points at each end.

[0110] To ensure the capstone is not damaged, thick templates are laid on the platform surface, thick wooden planks are laid at the capstone, and thick templates are nailed to the sides to protect the sides of the capstone. Three back supports are set at the bottom of the capstone. Three horizontal supports are arranged on the side wall of the platform, and two horizontal supports are arranged along the height direction. The horizontal supports use steel pipes with bottom supports, and the steel pipes are connected to the uprights of the frame. Three connection points are set to protect the side wall and prevent the frame from tilting forward.

[0111] Due to the weak load-bearing capacity of trench covers, it is prohibited to install the uprights directly on the trench covers. Instead, the uprights are supported by setting channel steel on the concrete surface on both sides of the trench cover. To avoid installing the uprights on the edge of the steps or conflicting with the location of communication pipelines, the uprights are supported by setting channel steel support beams.

[0112] The bridge was constructed with its width expanding outwards on both sides. The steel rails were first covered with cotton quilts to prevent the formation of red light bands, and then covered with thick plywood for rigid protection to prevent materials from bumping into the steel rails during construction.

[0113] In this step, by comprehensively considering factors such as the set of support points, the lower load-bearing limit index, and the size and weight distribution of construction equipment, the structural form and building materials of the aqueduct can be scientifically selected, and the span, width, and height of the aqueduct can be precisely determined. This ensures that the aqueduct meets construction requirements while having sufficient safety margins. The support structure designed based on the set of support points, including support columns, beams, and connectors, ensures that the aqueduct has sufficient stability and rigidity when bearing loads. At the same time, the comprehensive safety measures effectively protect the safety of construction personnel and the safety of the aqueduct erection process. By developing a detailed construction process, including the aqueduct erection sequence, construction time windows, and personnel division of labor, the construction activities can be ensured to proceed efficiently and orderly. The proposed temporary cross-track bridge construction plan not only improved work efficiency but also reduced the impact on railway operations. The specific details outlined in the plan, such as the use of modular scaffolding, the spacing between uprights, and the step distance between horizontal poles, demonstrate the plan's adaptability and flexibility to different site conditions. During the bridge's construction, protective measures were implemented for key components such as the platform surface, capstone, and side walls to prevent damage during construction. Furthermore, the plan considered the reusability and environmental friendliness of materials, contributing to sustainable development. This plan for constructing temporary cross-track bridges offers multiple benefits, including scientific rigor and precision, stability and safety, efficiency and orderliness, adaptability and flexibility, and protection and sustainability, providing strong support for the construction safety of railway operating lines.

[0114] S5. Construct a test bridge off-site according to the temporary bridge construction plan for crossing the track, and conduct a load-bearing test on the test bridge. Based on the construction process and the load-bearing test results, obtain an optimized bridge construction plan.

[0115] The method for erecting the experimental aqueduct includes:

[0116] According to the temporary bridge construction plan for crossing the track, prepare the necessary building materials, construction equipment and personnel;

[0117] Select an off-site location similar to the construction site of the operational railway line for the construction of the test bridge;

[0118] According to the set of support points and structural design in the plan, the bridge was constructed on the off-site site.

[0119] After the test bridge is erected, a comprehensive quality inspection is carried out, including aspects such as size, shape, and material strength.

[0120] Ensure that the test bridge meets the design requirements and has the conditions to conduct load-bearing tests;

[0121] Methods for conducting load-bearing tests on experimental aqueducts include:

[0122] Prepare test loads similar in weight and size to the construction equipment to simulate the load effect of the actual construction equipment on the bridge.

[0123] Install monitoring equipment, including strain gauges and displacement sensors, to monitor the strain and displacement of the bridge under load;

[0124] Gradually increase the test load to simulate the different positions and actions of construction equipment on the aqueduct;

[0125] Real-time recording and monitoring data are used to observe the strain and displacement changes of the bridge.

[0126] The monitoring data were organized and analyzed to evaluate the structural performance of the bridge under test loads.

[0127] Compare the test results with the expected values ​​in the design scheme to identify potential structural defects or safety hazards;

[0128] Methods for obtaining optimized solutions for bridge construction include:

[0129] Based on the results of the load-bearing test, identify problems with the bridge's structural performance, stability, or safety.

[0130] The cause of the problem could be an unreasonable design, insufficient material strength, or errors during construction.

[0131] For the identified problems, corresponding optimization measures are proposed, including adjusting the support points, strengthening structural connections, and replacing materials with high-strength materials.

[0132] The optimized scheme is calculated and analyzed to verify its feasibility and effectiveness;

[0133] Based on the verification results, the final optimized plan for the bridge construction was determined; ensuring that the optimized plan not only meets the needs of construction equipment passage, but also has sufficient safety and stability.

[0134] In this step, by constructing a test bridge off-site and conducting load-bearing tests, the feasibility and effectiveness of the temporary bridge construction scheme across the track can be directly verified. This practical process not only verifies the rationality of the design scheme but also identifies existing structural defects or safety hazards through real-time monitoring data feedback, providing an important basis for subsequent optimization. During the load-bearing tests, by gradually increasing the test load and monitoring the strain and displacement of the bridge in real time, the structural performance of the bridge under actual construction equipment loads can be accurately assessed. This helps to promptly identify and resolve potential safety issues, thereby ensuring that the final constructed bridge meets construction requirements and possesses sufficient safety and reliability. Stability; through the construction and load-bearing tests of the experimental aqueduct, the required quantity and specifications of building materials, construction equipment, and personnel can be determined more accurately, avoiding resource waste; at the same time, by optimizing the design and implementation of the scheme, the cost of aqueduct construction can be effectively reduced and construction efficiency improved; the implementation of this step requires the comprehensive application of knowledge from multiple disciplines such as structural mechanics, materials science, and construction technology for scheme design and optimization; it not only improves the professional level of technical personnel but also stimulates innovative thinking, providing impetus for the continuous improvement and innovation of temporary aqueduct construction technology across tracks; ensuring the quality and safety of aqueduct construction, thereby effectively guaranteeing the continuity and safety of railway operations.

[0135] S6. Apply the optimized plan for the construction of the temporary bridge across the track, arrange construction materials and personnel, and carry out the construction of the temporary bridge.

[0136] Based on the material list in the optimized plan, prepare the necessary structural materials, connectors, support devices, etc., and ensure that all materials meet the quality standards.

[0137] Prepare construction equipment and safety testing instruments to ensure that the equipment is in good working order and meets construction requirements;

[0138] According to the construction plan, a professional construction team was formed, including structural engineers, safety supervisors, and operators. The responsibilities of each position were clarified, and safety education and skills training were conducted.

[0139] The construction site of the operational railway line was re-inspected to confirm the support points, assess the impact of the site environment on the erection operation, and formulate an emergency plan.

[0140] According to the set of support points in the optimized plan, carry out foundation construction to ensure the stability and durability of the support structure;

[0141] According to the design plan, the prefabricated bridge components are assembled in sequence and firmly connected together to ensure the integrity and stability of the structure; quality inspection is carried out on key connection parts to ensure reliable connection.

[0142] During the erection process, safety warning signs were set up and safety protection facilities were provided to ensure the safety of construction personnel and passing trains;

[0143] During the construction process, monitoring equipment is used to monitor the stress and deformation of the bridge structure in real time, and to promptly detect and handle any abnormalities.

[0144] After the bridge is erected, a comprehensive quality inspection is conducted, including aspects such as size, shape, material strength, and connection quality, to ensure that it meets the design requirements.

[0145] In this step, the efficiency and precision of the aqueduct erection were ensured by strictly adhering to the optimized plan during construction preparation and erection. The optimized plan, including material lists, equipment selection, team formation, and site surveys, was meticulously designed and scientifically analyzed, avoiding the reliance on experience and arbitrariness inherent in traditional erection methods, thus improving efficiency and accuracy. Measures such as preparing safety protection facilities, setting up safety warning signs, and providing safety education and skills training ensured the safety of construction personnel during the erection process. Simultaneously, real-time monitoring of the aqueduct structure's stress and deformation allowed for timely detection and handling of anomalies, further guaranteeing the aqueduct's stability and safety. This effectively reduced safety hazards during construction and improved overall construction safety. Comprehensive quality inspections of the aqueduct ensured it met design requirements, contributing to improved overall performance and service life while complying with relevant regulations and standards, enhancing compliance. Emergency response plans and on-site environmental assessments demonstrated the method's flexibility and adaptability in complex and changing site environments. Timely adjustments to the construction plan and corresponding measures ensured the smooth progress of the aqueduct erection operation and effectively addressed various emergencies.

[0146] In addition, this application also provides an electronic device, including a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor. The transceiver, the memory, and the processor are respectively connected via the bus. When the computer program is executed by the processor, it implements the various processes of the above-described method embodiment for controlling output data and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0147] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for constructing temporary cross-track bridges for the entry of construction equipment on an operational railway line, characterized in that, The method includes: Obtain multi-dimensional structural data and basic parameters of construction equipment at the construction site of the operational railway line; A feasibility analysis was conducted on the multi-dimensional structural data to obtain a set of support points for the construction of the aqueduct; Stress analysis was performed on the foundation parameters of the construction equipment to obtain the lower limit index of the bridge's load-bearing capacity. Based on the set of support points for the construction of the bridge and the lower limit index of the bridge's load-bearing capacity, a plan for the construction of a temporary bridge across the track is formulated. According to the temporary cross-track bridge construction plan, a test cross-track bridge was constructed off-site, and a load-bearing test was conducted on the test cross-track bridge. Based on the construction process and the load-bearing test results, an optimized construction plan for the cross-track bridge was obtained. An optimized plan for bridge construction was applied, and construction materials and personnel were arranged to carry out the construction of a temporary bridge across the track. The multi-dimensional structural data includes on-site three-dimensional data, track status change data, and operational line data; Methods for obtaining the set of support points for the construction of the aqueduct include: Cleaning and preprocessing multi-dimensional structured data; Based on the on-site three-dimensional data, an environmental and geological condition assessment was conducted to obtain the results of the on-site environmental impact analysis. Based on the track condition change data, assess the impact of the bridge construction on the track; Based on operational data of the railway lines, assess the impact of the construction and use of the aqueduct on railway operations; The results of the on-site environmental impact analysis, the impact of the bridge construction on the track, and the impact of the bridge construction on railway operation are comprehensively evaluated to obtain a set of support points for the bridge construction. Methods for obtaining the lower limit index of the load-bearing capacity of a bridle bridge include: Based on the total weight of the construction equipment and its distribution on the aqueduct, the maximum static load applied to the aqueduct by the equipment is calculated. Dynamic analysis is performed on the dynamic loads generated when construction equipment moves on the bridge to obtain dynamic load data. Based on the maximum static load and dynamic load data, the lower limit index of the bridge's load-bearing capacity is determined.

2. The method for constructing a temporary cross-track bridge for construction equipment access on an operational railway line as described in claim 1, characterized in that, Methods for developing plans for constructing temporary cross-track bridges include: The bridge structure type is selected based on the set of support points and the lower load-bearing limit index. Based on the load-bearing requirements and durability requirements of the aqueduct, select the building materials; The span, width, and height of the aqueduct are determined based on the size and weight distribution of the construction equipment. Design the support structure based on the set of support points; Develop a construction process, including the order of bridge construction, construction time windows, and personnel division of labor; Develop safety measures, including safety management at the construction site and emergency response procedures.

3. The method for constructing a temporary cross-track bridge for the entry of construction equipment on an operational railway line as described in claim 1, characterized in that, The method for erecting the experimental aqueduct includes: According to the temporary bridge construction plan for crossing the track, prepare the necessary building materials, construction equipment and personnel; Select an off-site location for constructing the test bridge; According to the set of support points and structural design in the plan, the bridge was constructed on the off-site site. After the test bridge was erected, a quality inspection was conducted.

4. The method for constructing a temporary cross-track bridge for the entry of construction equipment on an operational railway line as described in claim 1, characterized in that, Methods for conducting load-bearing tests on experimental aqueducts include: Prepare test loads for the simulated construction equipment to simulate the load effects of actual construction equipment on the bridge. Install monitoring equipment, including strain gauges and displacement sensors, to monitor the strain and displacement of the bridge under load; Gradually increase the test load to simulate the different positions and actions of construction equipment on the aqueduct; Real-time recording and monitoring data are used to observe the strain and displacement changes of the bridge. The monitoring data is organized and analyzed to assess the structural performance of the bridge under test loads and identify structural defects and safety hazards.

5. The method for erecting a temporary cross-track bridge for construction equipment access on an operational railway line as described in claim 1, characterized in that, Methods for obtaining optimized solutions for bridge construction include: Based on the results of the load-bearing test, identify the problems existing in the bridge and analyze the causes of the problems; For the identified problems, propose optimization measures; The optimized scheme is calculated and analyzed to verify its feasibility and effectiveness; Based on the verification results, an optimized plan for the construction of the pontoon bridge was determined.

6. Electronic equipment for erecting temporary cross-track bridges for construction equipment entering the operational railway line, comprising a bus, transceiver, memory, processor, and a computer program stored in the memory and executable on the processor, wherein the transceiver, the memory, and the processor are connected via the bus, characterized in that... When the computer program is executed by the processor, it implements the steps of the method as described in any one of claims 1-5.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1-5.

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