156 results about "Subway line" patented technology

The invention relates to the technical field of subway train driving strategy optimization, and discloses a subway line real-time data driven DAS driving strategy optimization method, which comprises the following steps: acquiring multi-dimensional operation data including a train real-time position sequence, station passenger flow data and a trackside signal equipment state; extracting line operation characteristics through a convolution space-time encoder, generating a passenger flow fluctuation prediction map by using a time sequence decomposition algorithm, and performing characteristic fusion on the trackside signal equipment state to generate an equipment health degree evaluation matrix; inputting the multi-dimensional data into the driving strategy model to generate an initial driving instruction sequence, dividing operation control priorities through a regional clustering algorithm, and constructing a dynamic optimization strategy network in combination with a genetic algorithm to generate a final driving strategy scheme; and acquiring an execution state log in real time, and updating the strategy network through the abnormal decision detection model. According to the method, the dynamic optimization of the subway driving strategy is realized, and the operation safety, efficiency and comfort are improved.

The invention discloses a subway passenger flow simulation deduction method considering an individual trip chain and an activity mode, and relates to the technical field of subway operation management, and the method comprises the following specific steps: constructing a topological framework, calculating an external factor attention weight, constructing an individual trip behavior library, carrying out dynamic topological adjustment, and executing passenger flow simulation and deduction. By constructing the space-time heterogeneous topology model and dynamically adjusting the weight values of the nodes and the edges, the precision and the real-time performance of subway passenger flow simulation are improved, physical parameters and historical operation data of urban subway lines are collected, an external factor input layer and a calibration layer are additionally arranged, and the accuracy of subway passenger flow simulation is improved. The spatial-temporal heterogeneous topology model can reflect the influence of external factors on the subway passenger flow in real time, the station retention weight and the line passing weight are dynamically corrected by calculating the attention weight of the external factors and combining data in the individual travel behavior library, and the prediction of the subway passenger flow change is realized. And a scientific basis is provided for subway operation managers.

The invention discloses a bolt color marking line detection method based on image segmentation and classification fusion, and belongs to the field of track maintenance. According to the method, a color mark line area of a bolt head is accurately segmented by collecting a track bolt image and combining image preprocessing and mask extraction. On the basis, through deep semantic feature extraction and fusion, pixel-level masks and global context information are integrated and sent to a classification network to judge whether the bolt color graticules are aligned or not. And finally, the whole network structure is optimized through a joint training mechanism, so that the accuracy and robustness of the system in a complex environment are improved. According to the method, the bolt color marking line can be accurately extracted under the complex conditions of weak light, light reflection, shielding and the like, the fine offset with the alignment deviation smaller than 15 degrees can be effectively recognized, and the method can be widely applied to the fields of subway lines, urban rail vehicle maintenance, automatic inspection robots and the like.

An analysis method for a metro line steel rail corrugation forming mechanism comprises the steps that numerical model input parameters are obtained, and a wheel-rail three-dimensional coupling numerical model suitable for a vehicle-rail / wheel set of a metro line is constructed; longitudinal and transverse half width lengths of wheel-rail contact spots in the stable running process of the vehicle / wheel are obtained so as to determine a creep force-creep rate relation curve; determining a creep rate saturation critical value to judge the creep saturation state of the wheel-rail system; a macroscopic determination program for determining the structural stability of the wheel-rail system; determining an analysis process of a steel rail corrugation forming mechanism; judging whether the contact interface creep is saturated or not, and analyzing the probability of occurrence of rail corrugation according to the judgment; and determining a wavelength fixing method for rail corrugation in an actual measurement interval, and verifying the effectiveness and applicability of the method. According to the method, the steel rail corrugation phenomenon on a subway line is focused, the analysis method is provided from the two aspects of microcosmic creep saturation and macroscopic structure stability, and therefore the occurrence probability of steel rail corrugation is reflected more accurately.

The invention discloses a low-clearance and close-range barrier removal construction method for an existing operation station enclosure structure, which comprises the following steps: S1, underground diaphragm wall construction: S11, underground diaphragm wall groove wall reinforcement: according to the stratum condition, in order to avoid hole collapse in the groove forming process, adopting MJS construction method piles for reinforcement treatment between a barrier removal working well and new and old ground walls of a station, and S12, construction of an underground diaphragm wall; grooving the underground diaphragm wall; s13, hoisting an underground diaphragm wall reinforcement cage; s14, concrete pouring is conducted; s2, crown beam supporting and dewatering well construction; s3, foundation pit excavation and support erection construction are carried out; s4, constructing a lining wall; s5, freezing construction is conducted; s6, barrier removal construction is carried out; and S7, backfilling construction is conducted. The problem that conventional construction cannot meet the construction requirements that the obstacle removing working well is located in a low clearance, adjacent to an operation subway line and a bridge pile and small in space of the obstacle removing working well is solved, obstacle removing work can be safely completed, and operation of the subway line and the viaduct cannot be affected.

The invention discloses a subway line track state detection method and system based on an improved YOLOv8s algorithm, and relates to the technical field of image processing, and the method comprises the steps: obtaining a to-be-detected subway line track image, inputting the image to a feature extraction module, and obtaining a first extraction feature, a second extraction feature, a third extraction feature and a fourth extraction feature; inputting the fourth extraction feature into a double attention module to obtain an enhanced feature; inputting the enhanced features into an SPPF module to obtain initial fusion features; inputting the initial fusion feature into a true internal rolling module to obtain a deep fusion feature; inputting the first extraction feature, the second extraction feature, the third extraction feature and the deep fusion feature into a multi-scale fusion module to obtain a multi-scale feature; and inputting the multi-scale features to a detection head module to obtain a final detection result of the multi-scale detection target. And various types of defect targets existing on the track can be comprehensively, efficiently and accurately detected and identified.

The present invention relates to the technical field of rail transit management, and particularly relates to an over-saturated passenger flow pre-control method for urban rail transit stations. After the start time of the activity influence, according to the representative outbound of large-scale activities at each station on each subway line and the relative distance between each station and the activity station at each moment, the participation of large-scale activities on each subway line at each moment is obtained; combined with the number of available drivers, the increased transport capacity of each subway line at each moment is obtained; according to the change trend of the representative inbound or representative outbound of large-scale activities at the activity station at different moments, the start time and the end time of the large-scale activity are obtained, and the transport capacity of each subway line at different moments is controlled. The present invention provides reasonable subway transport capacity by accurately analyzing the influence of the passenger flow of large-scale activities on the subway transport capacity, and improves the effectiveness of passenger flow control.

The invention provides a dynamic decision-making method and system for store site selection based on geographic information, and relates to the technical field of geographic information system.The method comprises the steps that traffic data of main roads and subway lines of a target city and geographic image information of peripheral business districts of a to-be-analyzed area in the target city are obtained; processing the geographic image information to obtain a physical boundary range and business state distribution information of a peripheral business district, and calculating traffic reachability parameters in combination with traffic data; determining a preliminary candidate area in the physical boundary range, and obtaining a cooperative potential parameter according to the traffic reachability parameter; selecting a candidate store area position from the preliminary candidate area based on the traffic reachability parameter and the cooperative potential parameter; according to surrounding dynamic factors, the candidate store area positions are evaluated to determine the final store site selection, so that the accurate, intelligent and dynamic decision-making of the store site selection is realized, and the scientificity and the commercial success rate of the site selection are improved.

The invention relates to the technical field of deep foundation pit engineering construction, in particular to a first-supporting-and-second-supporting system construction method based on back pressure soil of a deep foundation pit of a temporary operating subway, and the method comprises the following steps: aiming at the construction problem of the deep foundation pit of the temporary operating subway, forming a collaborative supporting system by reserving a back pressure soil body, a supporting pile and a top beam; layered excavation is carried out by adopting a support-first and support-second process, and a next layer is excavated after support installation and prestress application are completed; deep foundation pit backfilling and steel support layered dismantling are executed step by step along with commercial main body structure construction; after the commercial main body reaches the preset stage, integrated construction including static cutting, rigid connecting component pre-embedding for settlement prevention and middle-embedded type water-stop belt waterproofing is conducted on the subway channel; and a real-time monitoring system is combined to ensure construction safety and subway structure stability. The method can effectively balance the stability of the deep foundation pit and metro protection requirements, improves the construction efficiency, solves the problems of settlement and leakage of construction joints, and is suitable for deep foundation pit engineering close to an operating metro.

The invention discloses a soft soil area newly-built box culvert short-distance crossing operation subway line construction method which comprises the steps that positioning paying-off and blocking are conducted in a construction area, and before a foundation pit is excavated, ballasting bags with the specific stacking weight and height are arranged in the center of a corresponding subway tunnel rail according to the linear meter; holes are formed in the uplift pile positioning positions on the two sides of the subway tunnel, a first section of pile casing is hoisted and pressed downwards till the first section of pile casing sinks, the perpendicularity is adjusted, a rotary drilling machine takes soil to enable the pile casing to sink, all sections of pile casings are sequentially inserted into the designated burial depth, a reinforcement cage is put down to pour concrete, the pile casings are pulled out after the strength reaches the standard, and a cushion layer is made; the uplift pile end reinforcing steel bars on the same side are connected through reinforcing steel bar nets to form an uplift beam net, box culvert bottom plate reinforcing steel bars are bound, and an uplift pile, uplift beam and box culvert bottom plate integrated structure is formed through formwork erecting and pouring. According to the technical scheme, disturbance of construction to the subway tunnel can be reduced, and operation safety is guaranteed.

This invention discloses a method for overlapping construction of waterproofing systems in existing subway lines. It relates to the field of underground engineering waterproofing construction technology and includes: Step 1, current status investigation and deformation assessment; Step 2, overlapping structure system design; Step 3, key material selection and process matching; Step 4, refined overlapping construction process; and Step 5, full inspection after each process. This invention's method for overlapping construction of waterproofing systems in existing subway lines, through Step 1, involves structural deformation monitoring and analysis and diagnosis of the existing waterproofing layer; Step 2, involves deformation adaptation structure design and differential deformation compensation design; Step 3, involves material selection and process innovation; Step 4, involves base treatment, interface treatment, expansion joint and node construction, and reinforcement layer construction; and Step 5, involves process inspection. This method, tailored to the characteristics of existing subway lines, enables the effective combination of different waterproofing materials, adapts to continuous deformation, and ensures long-term reliability.

The present invention relates to the technical field of track engineering, and specifically relates to a long rail welding platform device and a usage method for a subway operation line base, including: a welding work area, wherein the welding work area is provided with a transfer structure for transferring rails; a plurality of roller structures extending in a parallel direction from the welding work area to the existing line, and the roller structure includes a support frame and a roller assembly arranged on the support frame, and the support frame is used to support the roller assembly to the same height as the existing line. Compared with the prior art, the combined structure of the present invention is simple and feasible, easy to install and disassemble, and its advantages are: it can maintain the normal operation of the subway line, does not affect the travel of passengers, ensures the safety of subway operation, utilizes the original subway operation line vehicle base to build a long rail welding platform, welds 25m rails into 100m long rails, transports them to the underground line to replace the subway, and greatly improves the replacement speed.

This application relates to a deep and large foundation pit support system and construction method for straddling an existing subway section structure, belonging to the technical field of civil engineering construction. The deep and large foundation pit support system in this application includes a number of full casing support piles located on both sides of the existing subway line and a beam-slab covering the top of the existing subway line; the beam-slab includes a rigid frame beam and a reinforced concrete slab cast integrally; the rigid frame beam in the beam-slab straddles above the existing subway line and is correspondingly arranged with the full casing support piles, and both ends of the rigid frame beam are fixedly connected to the tops of the corresponding full casing support piles on both sides of the existing subway line; a number of rotary drilling support piles are arranged on the outside of the full casing support piles on each side, the rotary drilling support piles are located on the side and obliquely below the existing subway line, and there are a number of cross-laid anchor rods between the rotary drilling support piles on both sides. In this application, the effective protection of the subway structure is realized, and the adverse impact of construction on the existing subway is reduced.

The invention relates to the technical field of subway construction period emergency resource management, and particularly discloses a subway construction period emergency resource management and allocation method and system, and the method comprises the steps: building a line map of an existing subway line, carrying out the statistics of the resource types, number and coordinates of an emergency resource warehouse, building a resource map, setting the accident grade according to the accident type, and carrying out the emergency resource allocation. And determining the required resources under each grade, determining the required resources according to the accident type and grade when an emergency occurs, formulating an allocation scheme in combination with a resource map, and notifying management personnel of the emergency and the allocation scheme to realize rapid allocation of the resources. According to the invention, through presetting the emergency resource list and combining the real-time project progress, accurate matching is realized, emergency information is periodically updated to ensure accurate time efficiency, visual management is realized through a map, automatic monitoring and early warning linkage are realized to improve response sensitivity, so that emergency commanding and dispatching are more convenient, and emergency response efficiency is effectively improved.

The invention discloses a platform for spatial analysis of a protection area along a subway based on an unmanned aerial vehicle orthograph and a GIS map fusion technology, and belongs to the technical field of monitoring of the protection area along the subway, and the platform comprises a data collection module, a protection area image construction module, an abnormality judgment module, and a GIS real-time data sharing module. And the data acquisition module acquires video data of a target area through the unmanned aerial vehicle to obtain an orthograph of the target area, performs precision calibration on the obtained orthograph by using RTK to measure coordinates and elevation in combination with ground control points set in the target area, collects target subway line information, and marks a target subway line in the orthograph of the target area. According to the method, on the basis of the unmanned aerial vehicle orthograph and GIS map fusion technology, complex geographic information is simplified through linear processing on a subway protection area space analysis platform, the accuracy, real-time performance and efficiency of risk judgment are improved, and powerful support is provided for safety management of subway protection areas.

The invention discloses a safety assessment method and system based on construction along a subway, and belongs to the technical field of electric digital data processing, and the method comprises the following steps: obtaining an initial static comprehensive stress response value, and obtaining the initial construction speed of a grab machine through matching; a simulation construction comprehensive stress response value is obtained, and an initial construction speed simulation deviation proportion and a grab machine execution construction speed are obtained through analysis; whether construction speed correction processing is executed or not is judged, and if it is judged that the construction speed correction processing is executed, the construction speed correction processing is conducted; and if it is judged that the construction speed correction processing is not executed, a construction safety reminding signal is generated based on the construction execution speed of the grab machine and uploaded to a safety management background for construction safety reminding, and automatic construction state updating is carried out. The construction speed along the subway is reasonably adjusted, the construction safety is guaranteed, and the problem that in the prior art, the construction safety along the subway is poor due to the fact that the construction speed of a grab machine is unreasonable is solved.

The invention discloses a shield construction method and a heating device for underneath passing an existing operation subway line, and the method comprises the steps: obtaining a structure deformation cloud picture according to the position relation between a shield tunnel and an existing line and in combination with soil layer parameters; shield tunneling five-stage settlement control is carried out on the basis of the structural deformation cloud picture; wherein the shield tunneling five-stage settlement control comprises cutter head front settlement control, cutter head excavation position settlement control, shield tunneling machine right upper part settlement control, shield tail segment part settlement control and formed tunnel upper part lag settlement control. The problem that an existing construction method easily causes settlement or displacement overrun of an existing operation subway line can be effectively solved.

The invention provides a line inclined exchange station shield launching construction method, and relates to the technical field of subway line shield launching. According to the construction method, reinforcing steel bars are implanted into side walls, a bottom plate and a top plate in an original subway line, so that the structure of the reinforcing steel bars is perpendicular to a newly-built subway line, concrete is poured, and a tunnel portal structure is constructed; the original subway line is guaranteed to be perpendicular to the newly-built subway line through the tunnel portal, then when the shield tunneling machine conducts construction, the shield launching end wall is perpendicular to the line, a cutter head of the shield tunneling machine is made to be parallel to a tunnel face, it is guaranteed that stress is even when the shield tunneling machine conducts construction, the tunneling process is along the axis, precision is high, and deviation or rotation does not occur; the safety of the construction process is effectively improved, meanwhile, it is guaranteed that the shield tunneling machine cannot be damaged due to uneven stress, the construction progress is guaranteed, and the technical problems that an existing shield tunneling machine is uneven in stress and prone to deviation when starting on the oblique crossing line, the underground excavation construction period is long, and the cost is high are solved.

1. Name of the product in this design: Graphical User Interface for Displaying Subway Station Location Information on Electronic Devices. 2. Purpose of this design: To display the location of subway lines and stations. 3. The key design features of this product are its graphical user interface. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: Used for human-computer interaction interfaces for subway lines and station locations. 6. Human-computer interaction method of graphical user interface: The main view is the start interface; click the icon of unchecking "map background" in the lower right corner of the main interface to enter the interface change state diagram 1. The interface change state diagram 1 is the map view by default, and a custom-drawn subway line map can be displayed on the tile map.

The present application discloses a data management method for rail transit. The method includes: based on the information of each trip of each subway line, inputting according to the working attributes into the corresponding pre-trained dwell time prediction model to obtain the initial dwell time sequence corresponding to the station sequence of this trip; based on the next station that this trip is heading for, obtaining the expected number of boarding passengers at this station; based on the expected number of boarding passengers and the initial dwell time of this station, obtaining the target dwell time of this station according to the first algorithm, replacing the original initial dwell time, and updating the expected arrival times of all the remaining stations of this trip; according to the pre-set global dwell time management mechanism, dynamically updating the initial dwell times of all the remaining stations of this trip, and repeating steps S102 to S104 until the next station that this trip is heading for is the terminal station. Thus, it is possible to continuously optimize the dwell time strategy of railway trips and improve the railway operation level and passenger experience.

This application relates to the field of deep foundation pit construction technology, and particularly to a method for constructing deep foundation pits in a subway transfer node area. The transfer node area includes an enlarged section, a pipeline relocation section, and a main connecting section. A temporary partition is set on the side of the main connecting section to separate the transfer node area from the main section of the first subway line. The enlarged section adopts a concrete support system, while the pipeline relocation section and the main connecting section adopt a hybrid support system of concrete and steel supports. The deep foundation pit construction method includes: Step S1: Traffic diversion and pipeline relocation; Step S5: Foundation pit excavation and support: The foundation pit excavation and support adopts a combination of vertical layering and longitudinal segmentation. The longitudinal segmentation sequence is the enlarged section, the main connecting section, and the pipeline relocation section. When excavating and supporting the foundation pit of the pipeline relocation section, the temporary partition at the corresponding depth is removed simultaneously to avoid idle work and greatly shorten the overall construction time.

1. Name of the design product: Graphical user interface for energy efficiency management of electronic devices. 2. Use of the design product: The design product is used for an electronic device. 3. Design key points of the design product: Lies in the interface content of the graphical user interface on the screen. 4. Picture or photo that best shows the design key points: Front view. 5. Other views are of conventional designs, and other views are omitted. 6. Use of the graphical user interface: Used for browsing the overall energy efficiency situation, energy consumption situation of subway line equipment, and detailed operation situation of the equipment, helping to analyze the energy consumption and operation status of the equipment to reduce costs and increase efficiency. 7. Human-computer interaction method of the graphical user interface: The front view is the first interface of the graphical user interface of the energy efficiency management system; click "Expand full screen" on the right side of the front view to enter the interface change state diagram 1; click "Qingshanqiaobang" on the basis of the interface change state diagram 1 to view the corresponding station data panel and then enter the interface change state diagram 2; click "Fold up the station" at the lower right of the page on the basis of the interface change state diagram 2 to enter the interface change state diagram 3; click "Expand the station" on the basis of the interface change state diagram 3, and then place the mouse on "Fuqiang Station" within the station to enter the interface change state diagram 4; click "Fuqiang Station" on the basis of the interface change state diagram 4 to enter the interface change state diagram 5.

The present application relates to a kind of metro network level engineering vehicle protection system data acquisition method, equipment and medium, the method includes: signal interlocking system acquisition equipment information and send to ATS system, signal vehicle-mounted system sends train operation information to ATS system;ATS system sends equipment information and train operation information to network command center, while uploading the line number of this line;The interface server of network command center divides the received information to the processing thread of each line, and then the information output to network gate server by processing thread upload;Network gate server packs the information received to data pool and ferry to management network domain;Request information from network gate server, according to line, information is distinguished different thread processing, according to line, port number is sent to engineering vehicle interface front-end computer;Engineering vehicle interface front-end computer obtains information, and forwards information to engineering vehicle system.Compared with prior art, the present application has improved engineering vehicle operation efficiency and other advantages.

The present invention relates to the field of image processing and discloses a subway sky-line integrated platform monitoring method and system based on image recognition, which is used to solve the problem that when collecting image data during subway sky-line monitoring, the monitoring area is blocked by high-speed trains. The method comprises the following steps: collecting image data of an inspection area; if there is no inspection area blocked by a running train in the inspection area, generating a three-dimensional real-scene model of the subway line; if there is an inspection area blocked by a running train, completing the image data of the blocked area and generating a three-dimensional real-scene model of the subway line, marking all reconstructed images, calculating a hazard impact factor and a confidence factor, evaluating the actual degree of damage of each inspection area, calculating a maintenance index based on the actual degree of damage, and judging whether to perform subway line maintenance, thereby effectively improving the accuracy of subway line monitoring and subway safety.

The invention provides a subway steel rail insulation degradation positioning method and device, computing equipment and a storage system.The subway steel rail insulation degradation positioning method comprises the steps that a simulation model is established based on a topological structure of a target subway line, and a training data set is established based on the established training data set; a first steel rail potential distribution model is generated, a first steel rail potential gradient characteristic quantity reflecting the insulation state is extracted, and an optimal steel rail insulation defect detection threshold value is determined through an optimization algorithm; on-site potential data is obtained, a second steel rail potential distribution model is constructed according to the on-site potential data, a second steel rail potential gradient characteristic quantity is extracted through multi-resolution spatial derivative analysis, the second steel rail potential gradient characteristic quantity is compared with the optimal detection threshold value, and a potential steel rail insulation defect section is identified; and performing time sequence frequency statistics on the position information of the potential steel rail insulation defect section, and determining the final high-confidence steel rail insulation degradation position. And automatic positioning and intelligent operation and maintenance of the insulation degradation area of the subway steel rail backflow type direct-current traction power supply system are realized.

A kind of soft soil layer deep foundation pit underground comprehensive pipe gallery supporting structure, including subway line area (1), it is characterized in that: one side of the subway line area (1) periphery is left piling area (2), the other side of subway line area (1) periphery is right piling area (3), located left concrete pile (4) and located right concrete pile (4) between along the spanning direction of underground comprehensive pipe gallery is erected with arc protective arch (6), two rows of support piles (13) are vertically fixed on arc protective arch (6) or cambered surface connecting component (8) and are arranged, located the same side support pile (13) between is provided with pipe gallery continuous wall (16) by concrete pouring, the present application has reasonable structure, arc protective arch is used as protective main structure, the load of structure, backfill soil and construction machine above subway line area is shared to the piling area outside bottom subway line area, the safety of subway line is guaranteed to the greatest extent.

This invention discloses a weak signal processing method for electromagnetic wave CT, solving the problem that electromagnetic wave attenuation leads to signal submersion in strong environmental noise when electromagnetic wave CT technology is used for long-span measurements or measurements in strata with high absorption coefficients. This enables the application of electromagnetic wave CT technology with borehole spacing exceeding 40m in strata with high absorption coefficients, reducing the number of boreholes along geological exploration routes by more than half, significantly reducing drilling costs and improving geological exploration efficiency. This invention has been tested in several confidential experiments on multiple subway lines, achieving good results. The application of this invention will have significant implications for improving the efficiency of urban underground space development and geological exploration in complex environments, as well as controlling construction costs.

The invention provides a double-layer vehicle base with double-line fusion operation and an access line arrangement structure. A first subway line comprises a first main line and a second main line, and a second subway line comprises a third main line and a fourth main line; one end of the first access line is connected with the first main line through the first turnout and connected with the second main line through the second turnout; one end of the second in-out line is connected with the second main line through a third turnout and connected with the first main line through a fourth turnout; one end of the third access line is connected with the third main line through a fifth turnout and connected with the fourth main line through a sixth turnout; one end of the fourth access line is connected with the third main line through a seventh turnout and is connected with the fourth main line through an eighth turnout; the other end of the first access line and the other end of the third access line are connected to a second-layer vehicle base and are connected through a first cross crossover in the second-layer vehicle base; the other end of the second access line and the other end of the fourth access line are connected to the first-layer vehicle base and are connected through a second cross crossover in the first-layer vehicle base.

This invention discloses a power utility tunnel spanning an operational subway line under conditions of ensuring smooth traffic flow and its construction method. The power utility tunnel includes: vertical shafts symmetrically arranged on both sides of a subway tunnel and an overpass box-shaped structure connecting the two vertical shafts; the overpass box-shaped structure spans across the subway tunnel and has a filling layer between it and the top slab of the subway tunnel; the overpass box-shaped structure is an integral reinforced concrete structure, with its two ends respectively connected to the vertical shafts on both sides; the cross-section of the overpass box-shaped structure is rectangular, and its width is greater than its height. In this invention, the overpass box-shaped structure is supported by the vertical shafts at both ends, relying on its own structural rigidity to resist possible uneven settlement, eliminating the need for temporary supports and foundation reinforcement above the subway tunnel, and reducing active disturbance to the subway structure from the source.

The invention provides an urban subway tunnel post-earthquake trapped person quantity analysis method and device, and relates to the technical field of civil engineering structure earthquake resistance. The method comprises the following steps: establishing an earthquake analysis model of a site where a city is located, and calculating an earthquake motion field distribution condition in a target earthquake scene; carrying out statistics on typical characteristics of the urban subway tunnel, constructing a tunnel-soil body fine standard model of each typical characteristic, and inputting seismic waves into the models to obtain a corresponding relation between a seismic motion field and a tunnel damage state; determining a ground motion field at the position of each subway tunnel, and calculating the probability of occurrence of different damage states of each subway tunnel according to the corresponding relation; and based on the urban subway line operation data and the passenger data, determining the personnel distribution condition of each subway tunnel at different time, and calculating the number of trapped people in the subway tunnel after the earthquake. According to the method, the evaluation result of the number of people trapped in the urban subway tunnel after the earthquake in different earthquake scenes can be realized, and a scientific and reasonable tool can be provided for pre-disaster defense and post-disaster emergency.