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54 results about "Railway yard" patented technology

A rail yard, railway yard or railroad yard is a complex series of railroad tracks for storing, sorting, or loading and unloading, railroad cars and locomotives. Railroad yards have many tracks in parallel for keeping rolling stock stored off the mainline, so that they do not obstruct the flow of traffic. Railroad cars are moved around by specially designed yard switchers, a type of locomotive. Cars in a railroad yard may be sorted by numerous categories, including railway company, loaded or unloaded, destination, car type, or whether they need repairs. Railroad yards are normally built where there is a need to store cars while they are not being loaded or unloaded, or are waiting to be assembled into trains. Large yards may have a tower to control operations.

Method for automatically identifying, tracking and positioning vehicles in railway station

The invention discloses a method for automatically identifying, tracking and positioning a vehicle in a railway station, relates to the technical field of railway transportation management, and solves the problems that a three-level judgment mechanism is difficult to construct to identify the vehicle in combination with multi-sensor data, and automatic conversion from coordinates to tags is difficult to realize through a digital twin model. The technical problem of lack of prediction variance-based weight adjustment and joint loss function for balancing the multi-task training effect is solved; comprising the steps that multi-source data are collected by constructing a comprehensive monitoring system, and automatic vehicle recognition is achieved in combination with a three-level judgment mechanism; calculating vehicle position information by using a Kalman filtering algorithm and a railway yard special coordinate system, and mapping coordinates into semantic position tags through a digital twin model; a multi-task neural network framework is constructed based on historical data and semantic tags, the weight of a loss function is dynamically adjusted to optimize a joint loss function, and efficient semantic prediction and classification of vehicle positions are achieved.
Owner:CHINA RAILWAY WUHAN SURVEY & DESIGN CO LTD +1

Train consist build optimization

Combining a rail yard management system with an energy management system and health management system for optimizing a train consist build is provided. The rail yard management system determines railway cars and locomotives currently available at the rail yard. If there are not enough railway cars and / or locomotives available at the rail yard, the rail yard management system predicts or determines available railway cars and / or locomotives that are part of one or more inbound train consists. The rail yard management system queries the energy management system for energy management data associated with the locomotives to be assigned to the train consist. Planning of a desired train consist is a dynamic and iterative process where the planned train consist may be iteratively revised to include modifying the numbers and positions of locomotives to be included in the train consist for optimizing energy management and health management of the planned train consist.
Owner:PROGRESS RAIL LOCOMOTIVE INC

Intelligent station yard-oriented derailer state monitoring and identifying method and intelligent station yard-oriented derailer state monitoring and identifying system

A derailer state monitoring identification method and system for an intelligent station relates to the technical field of intelligent monitoring of railway stations, and is characterized in that a derailer image is collected in real time through a high-definition camera, and after denoising, geometric and HSV color space enhancement and normalization preprocessing, the derailer image is input into a state identification model constructed based on a YOLOv8 architecture; and automatically judging whether the derailer is in an on-track state or an off-track state, and feeding back a result to the management terminal. And the model is deployed on edge equipment of an algorithm box after data enhancement training. The system comprises an image acquisition unit, a data preprocessing unit, a state identification unit, an information feedback unit and an edge calculation unit. The system has high real-time performance, strong environmental adaptability and closed-loop cooperative capability, effectively replaces manual staring and control, and remarkably improves the reliability and intelligent level of safety monitoring of the railway yard.
Owner:CHINA STATE RAILWAY GRP CO LTD +1

Railway yard foreign matter intrusion detection system and method based on infrared thermal imaging

The invention relates to a railway yard foreign matter intrusion detection system and method based on infrared thermal imaging. The system comprises an intelligent scheduling system which is used for obtaining route information matched with an operation task under the condition that the railway yard has the operation task; the intelligent vehicle-mounted system is used for detecting a locomotive position matched with the route information; the foreign matter detection system is used for determining a driving front limit area of the locomotive based on the route information and the position of the locomotive and acquiring an infrared thermal imaging image corresponding to the driving front limit area; and sending alarm information to an intelligent vehicle-mounted system under the condition of determining that foreign matters exist in the driving front limit area based on the infrared thermal imaging image, so that the intelligent vehicle-mounted system controls the state of the locomotive based on the alarm information. By adopting the system provided by the invention, the foreign matter detection accuracy of the railway yard can be improved.
Owner:SHENHUA BAOSHEN RAILWAY GRP +1

Grouping device for steel rail stacking production line

The invention provides a grouping device for a steel rail stacking production line, and the grouping device comprises a lifting plate which is movably connected to a base in the height direction; the multiple movable tables are movably connected to the lifting plate in the length direction of the lifting plate; the linear driving assembly is used for driving the multiple moving tables to move; and the lifting driving assembly is used for driving the lifting plate to move in the height direction. The steel rail packing device has the beneficial effects that firstly, the steel rails move upwards to be separated from the steel rail conveying roller way through ascending of the lifting plate, then the multiple steel rails are moved to be in the same spacing state according to the steel rail packing requirement through moving of the moving table, follow-up packing operation is facilitated, and compared with traditional arrangement of spacing blocks, the working efficiency is improved, and the labor intensity of workers is lowered. And the spacing control precision is also improved.
Owner:TIANJIN ZHONGZHONG TECH ENG CO LTD

Railway yard gate state detection device

The utility model belongs to the technical field of railway equipment, and particularly relates to a railway yard gate state detection device which comprises a control box and an acquisition part which are arranged in a split mode. An MCU master control module, a double-channel redundancy communication module, a power supply module and an acquisition circuit are arranged in the control box. The collecting part comprises a travel switch installed near a door frame and used for detecting the opening and closing state of a station yard gate. The travel switch is connected with the MCU main control module through an acquisition circuit and transmits a state signal of the travel switch to the MCU main control module; the two-way redundant communication module is connected with the MCU master control module and is used for uploading gate state information to a server; and the power supply module supplies power to the MCU main control module, the double-channel redundancy communication module and the acquisition circuit. According to the utility model, automatic real-time detection and reliable transmission of the state of the railway yard gate are realized, a traditional manual confirmation mode is replaced, and the safety and efficiency of shunting operation are obviously improved.
Owner:HENAN LANXIN TECH

Railway station yard icon element control method and device, equipment and storage medium

The application relates to a railway station yard icon element control method, device and equipment and a storage medium. The method comprises the following steps: adding icon elements of a railway station yard and state control objects corresponding to each icon element to a hash table created in advance; timing traversing all the icon elements and the state control objects in the hash table; and executing a state control function corresponding to the state control object to control the state of the icon element in the process of traversing the icon elements and the state control objects in the hash table. The application can uniformly control a large number of icon elements on the railway station yard, does not need to separately control the state of each icon element, has a clear structure, and is relatively easy to use when displaying a relatively complex railway station yard diagram to troubleshoot faults.
Owner:SHENZHEN CHANGLONG RAILWAY ELECTRONICS ENGCO

Railway yard speed control hydraulic retarder

The utility model discloses a railway station yard speed regulation hydraulic parking device relates to railway parking field. The utility model discloses a railway station yard speed regulation hydraulic parking device, and the quick detachable parking device support subassembly including support base plate, slope type guide side plate, bottom limit clamp, detachable limit clamp, support base, concave type installation slot and U type limit installation board that set up can carry out sectional type alignment installation to hydraulic parking device, is convenient for its transportation and installation work has better deployment efficiency, and the two -stage speed regulation buffer type hydraulic parking subassembly including middle part hydraulic buffer base, secondary buffer base, connecting base, hydraulic oil tank, middle part hydraulic extension rod, lateral hydraulic extension rod, limit ring, limit sliding sleeve and parking support plate that set up can carry out sectional type absorption work according to the kinetic energy of vehicle transmission when using, and the energy absorption parking effect of improving is improved through the secondary kinetic energy absorption to it.
Owner:JILIN ASPECT RAILWAY AUTOMATION EQUIP

A remote control device for shunting diesel locomotives in a mine railway yard

The utility model relates to the technical field of locomotive remote control equipment discloses a mine area railway diesel locomotive yard shunting remote control device, including control box, the inside of control box is provided with signal receiving mechanism, the outer wall right side of control box is fixedly connected with installation box, the inner wall of installation box is provided with remote controller, the outer wall of remote controller is provided with protection assembly, signal receiving mechanism includes electric control brake, electric control brake fixedly connected in the inner wall rear end top of control box, the inner wall rear end middle part left side fixedly connected with power output module in control box, in the utility model, through the cooperation between remote controller, remote control receiving module in signal receiving mechanism, communication demodulation module, treater and electric control brake, realized the function that the train brake was controlled remotely, improved the problem that the existing technology needed many people to cooperate, could not avoid the information transmission failure caused by improper human operation completely.
Owner:YANKUANG ENERGY GRP CO LTD

Port station container space assignment and transfer scheduling optimization method for combined transportation of iron and water

The invention provides a port station container space assignment and transfer scheduling optimization method for combined transportation of iron and water, and relates to the technical field of railway port station container space assignment and transfer optimization. According to the invention, by collecting related information of to-be-distributed containers, stockpiled containers in a storage yard, storage yard container positions and storage yard container transportation paths, a coupling optimization model taking container area operation container quantity balance and minimum container total transportation distance as objective functions is constructed; and collaboratively optimizing container space assignment plans and transfer plans of the containers in the port storage yard and the railway storage yard. According to the method, on the basis of comprehensively considering harbor-harbor station storage yard characteristics in the railway-iron combined transportation operation process, the container positions and the transfer plans are reasonably arranged, the railway-sea-sea-railway two-way container dynamic transition double-operation process is coordinated, and the stockpiling operation efficiency of harbor stations is improved.
Owner:DALIAN MARITIME UNIVERSITY +3

Railway yard turnout and station track linkage type design method

The invention discloses a railway yard turnout and station track linkage type design method which comprises the following steps: S1, acquiring an original turnout set needing to be adjusted, and calculating an adjustment matrix according to an adjustment mode input by a user; s2, constructing a turnout action chain and a turnout action tree; s3, constructing a turnout action forest; s4, obtaining a copy of the turnout action forest; s5, repairing the curve connection in the copy by using the adjustment matrix to obtain a repaired turnout action forest copy; and S6, checking the compliance of the turnout action forest replica repaired in the step S5, and replacing the turnout action forest constructed in the step S3 with the compliant replica to complete the linkage type design. The method is suitable for the linkage type design scene of the turnout and the station track of the railway yard, the plane design and modification efficiency of the railway yard can be effectively improved, the practicability is high, the universality is high, and the problems that in traditional design, turnout and station track adjustment is isolated, and modification is tedious are solved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Construction method for long-distance box culvert with shallow covering soil penetrating through railway yard

The invention relates to a construction method of a long-distance box culvert for shallow covering soil to penetrate through a railway yard, which comprises the following steps: respectively constructing two working pits on two sides of an existing railway line, and respectively prefabricating a box culvert section in the two working pits; auxiliary beam structures are constructed at the corresponding positions of the existing railway line where the two box culvert sections are about to pass through, the auxiliary beam supporting structures carry out temporary overhead supporting on the existing railway line, and each box culvert section is correspondingly provided with the corresponding construction auxiliary beam structure; the two box culvert sections are jacked, so that the two box culvert sections are in place; and a cast-in-place foundation pit is excavated at the butt joint position between the two box culvert sections, the two jacked box culvert sections serve as access channels, and cast-in-place sequential connection of the two box culvert sections is completed in the cast-in-place foundation pit. The method has the advantages that under the condition that the railway operation is not interrupted, the shallow covering soil passes through the railway station yard, the problems that the number of station tracks is large, the distance is long, the risk is large, and the precision is high are solved, and a new thought and method are provided for urban roads to pass through the operating railway station.
Owner:CHINA RAILWAY SHANGHAI DESIGN INST GRP CO LTD

An automatic layout method for railway station signal equipment drawings

This invention discloses an automatic layout method for railway station signaling equipment drawings. Specifically, it involves: converting a railway station track layout drawing to be designed into an image format; inputting the obtained railway station track image into a Color-block GAN; the Color-block GAN automatically selecting the locations where various types of railway signaling equipment should appear based on the track information and railway technical specifications in the input image, obtaining an output image containing track and equipment location information; reading the equipment category and location from the output image; and automatically completing the equipment layout on the layout drawing to be designed based on the read equipment category and location information. This invention solves the problem of existing methods requiring a large amount of repetitive manual operation, and can automatically complete the layout of railway station signaling equipment, reducing the workload of designers in the preliminary design stage.
Owner:SOUTHWEST JIAOTONG UNIV

A method for automatic identification, tracking and positioning of vehicles in a railway yard

The application discloses a kind of railway station yard vehicle automatic identification and tracking positioning method, it is related to railway transport management technical field, it is difficult to solve the technical problem that three-level judging mechanism is combined with multi-sensor data to identify vehicle, it is also difficult to realize the automatic conversion of coordinate to label by digital twin model, lack of weight adjustment and joint loss function based on prediction variance, balance multi-task training effect;Including: by building comprehensive monitoring system to collect multi-source data, realize vehicle automatic identification in combination with three-level judging mechanism;Vehicle position information is calculated using Kalman filtering algorithm and railway station yard special coordinate system, and the coordinate is mapped into semantic position label by digital twin model;Based on historical data and semantic label, a multi-task neural network framework is constructed, the loss function weight is dynamically adjusted to optimize the joint loss function, efficient semantic prediction and classification of vehicle position are realized.
Owner:CHINA RAILWAY WUHAN SURVEY & DESIGN CO LTD +1

Method for controlling settlement deformation of road and bridge transition section in turnout zone of railway yard

The invention relates to the technical field of frame bridge structures, in particular to a method for controlling settlement deformation of a road-bridge transition section in a railway yard turnout zone, a track plate is arranged at the position, corresponding to a turnout, in a roadbed section, the track plate is supported below the turnout, and the track plate covers the full-length range of the turnout; a top plate of the frame bridge directly bears railway live loads of the frame bridge section, brackets are arranged on the two sides of the frame bridge, the brackets and the frame bridge are synchronously prefabricated to form an integral structure, the brackets bear loads of the track plate and the upper portion of the track plate, and a concrete cushion layer is arranged below the track plate. The method has the advantages that the practicability is very high, and the problem that turnout track deformation exceeds an allowable value due to uneven settlement between roads and bridges when the frame bridge passes through a railway station turnout zone under the road and bridge can be solved by arranging the track plate on the road and bridge transition section. Track plates are made of steel fiber concrete and need to cover the full-length range of the turnout, and after a temporary beam is erected to reinforce a line, open excavation and cast-in-place are carried out in a segmented mode; and the method has very high popularization and use values.
Owner:CHINA RAILWAY SHANGHAI DESIGN INST GRP CO LTD

Cleaning robot for railway yard

The utility model discloses a cleaning robot for a railway yard. The cleaning robot comprises a vehicle body, crawler wheels, two track wheel sets and a cleaning device. The crawler wheels are arranged on the left side and the right side of the vehicle body; the two track wheel sets are arranged at the front end and the rear end of the vehicle body, one end of each track wheel set is rotationally arranged along the axis in the left-right direction, and therefore the other end of each track wheel set has the running state that the track wheel sets rotate downwards to protrude out of the corresponding crawler wheel and the avoiding state that the track wheel sets rotate upwards to be higher than the corresponding crawler wheel. Rail wheels of the rail wheel set are used for abutting against a rail. And the cleaning device is arranged at the bottom of the vehicle body. Through the arrangement of the crawler wheels and the rail wheel sets, the rail sweeper can run on the flat ground and can also run on the rail, so that the purpose of sweeping away garbage on the flat ground and near the rail is achieved, and the cleaning work of the whole railway yard is facilitated.
Owner:HUBEI GOTOO RAIL TRANSIT RES INST CO LTD

Railway yard subgrade model construction method and device based on characteristic line

The application discloses a feature line-based railway station yard roadbed model construction method and device, relates to the field of railway engineering technology, and comprises the following steps: arranging a roadbed surface feature line based on railway station yard design information, obtaining feature line arrangement information, and setting additional attribute information of the roadbed surface feature line; determining a target roadbed surface feature line at a target mileage section based on the feature line arrangement information; determining the spatial coordinates of the target roadbed surface feature line based on the additional attribute information of the target roadbed surface feature line and track line information; constructing a roadbed cross section based on the spatial coordinates of feature points and transverse roadbed slope segment data; and constructing a railway station yard roadbed model based on the roadbed cross section. In the manner, the roadbed surface is described by using the feature line, and the additional attribute is set, so that the requirement can be more accurately reflected, the accuracy of the model is ensured, the roadbed cross section design can be automatically completed, the cross section slice materials are provided for constructing the station yard roadbed model, and the model construction efficiency is improved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD +1

Method and systems for an automated railyard

Various methods and systems are provided for a railyard system. In one example, a method for managing a railyard comprises, within the railyard, positioning a cargo unit on a multi-directional pad and moving the pad multi-directionally based on a requested order for the cargo unit relative to other cargo units, where the requested order corresponds to an order of cargo units on railcars of an outbound train. The multi-directional pad may operate within an arena, where the arena includes a concrete surface depressed into the ground such that a surface of the pad is level with a surface of the ground surrounding the arena, thereby allowing railcars to be pushed onto the pad by a locomotive of a train.
Owner:TRANSPORTATION IP HOLDINGS LLC

Track control network embedded part and observation assembly of railway yard

The embodiment of the utility model provides a track control network embedded part of a railway yard and an observation assembly. The track control net embedded part of the railway yard comprises an embedded body, and the embedded body forms two inserting cavities which extend in a deviating mode and form inserting openings and is used for installing two inserting rods in opposite directions. The observation assembly comprises a track control network embedded part of a railway yard and at least one insertion rod. And one end of the insertion rod is combined with the insertion cavity. According to the embedded part disclosed by the embodiment of the invention, the two insertion rods in opposite directions can be simultaneously mounted, so that the number of embedded part observation pillars is reduced, and the economic cost of laying and arranging a detection device is further reduced.
Owner:SHANGHAI PUGONG TESTING TECH CO LTD

Cantilever type railway yard container loading and unloading device

The utility model discloses a cantilever type railway yard container loading and unloading device, which belongs to the field of container loading and unloading and comprises a crane main body, a cantilever movably connected to the crane main body, a rotating shaft rotatably connected to the end part of the cantilever, a fixed block fixedly connected to the bottom of the rotating shaft, and a mounting plate slidably connected to the bottom of the fixed block. A sliding groove is formed in the top of the mounting plate, the mounting plate slides front and back along the sliding groove, a first spring is connected between the fixing block and the sliding groove, the bottom of the mounting plate is connected with a lifting appliance through a mounting assembly, the lifting appliance slides left and right along the mounting plate through the mounting assembly, and a first adjusting assembly and a second adjusting assembly are arranged in the mounting plate. The lifting appliance has the beneficial effects that the lifting appliance is movably mounted on the mounting plate, the position of the lifting appliance in the left-right direction is finely adjusted through the first adjusting assembly, and the position of the lifting appliance in the front-back direction is finely adjusted through the second adjusting assembly, so that a hook head on the lifting appliance corresponds to a groove in a container, and lifting is facilitated.
Owner:TIANJIN PORT CONTAINER FREIGHT

Vehicle leading device, vehicle leading system and vehicle leading method based on machine vision and interlocking signal

The present invention relates to the field of shunting operations in railway yards, and specifically to a train leading device, a train leading system based on machine vision and interlocking signals, and a train leading method. The train leading system of the present invention includes a train leading device, a data service platform, and a mobile operation terminal. The present invention realizes automatic identification of routes, automatic detection of foreign objects, and precise measurement of distances by real-time shooting of the road conditions and signal status in front of the vehicle, and performs video recognition and analysis. The real-time video stream and analysis results are transmitted to the data service platform. The data service platform further verifies and confirms the video stream and analysis results in combination with interlocking signals such as the route and signal status of the interlocking system, and transmits the video stream, route and signal status and other information to the shunting team members and the driver through the mobile operation terminal, instructing the driver to drive the locomotive safely, thereby realizing automatic and precise control of the train leading process, while improving operation efficiency and reducing the labor intensity of shunting operators.
Owner:BEIJING SWJTU RICHSUN TECH

Rail yard train-switching system, control device, and control method

A rail yard train-switching system includes train-moving machines and a control device. The train-moving machines each draw one of railroad trains in a rail yard. The control device transmits a traction command to the train-moving machines based on an operation schedule. The train-moving machines each move, based on the traction command transmitted from the control device, to a first location specified by the traction command to couple with an appropriate one of the railroad trains, and draw the one of the railroad trains from the first location to a second location specified by the traction command.
Owner:MITSUBISHI ELECTRIC CORP

Dynamic visualization method and device for power failure and power transmission of railway yard line

The invention provides a dynamic visualization method and device for power failure and power transmission of a railway yard line, and the method comprises the steps: generating a line path based on the space vector data of the railway yard line, so as to construct a line three-dimensional model, and the space vector data comprises the information of a plurality of line regions; dynamically acquiring updated power cut and transmission plan data, wherein the data comprises a target line area of planned power cut and transmission and a power cut and transmission approval state; matching identification is carried out based on the target line area and a preset power cut and transmission configuration scheme, a power cut and transmission configuration scheme of the target line area is obtained, a line switch and a power supply state of the target line area are determined based on the power cut and transmission approval state, and the preset power cut and transmission configuration scheme comprises power cut and transmission configuration schemes of multiple line areas; and based on the target line area information of the power cut and transmission configuration scheme of the target line area, positioning the target line area on the line three-dimensional model through information matching, and visualizing the power cut and transmission state of the positioned target line area based on the line switch and the power supply state.
Owner:INST OF COMPUTING TECH CHINA ACAD OF RAILWAY SCI +2

Methods and systems for railcar content analysis and allocation management

A computer-implemented method for allocating railcars in a rail yard based upon analysis of contents of the railcars is disclosed. The method includes generating, via a LiDAR sensor, images of the railcars. A network interface sends the images of the railcars to an analysis unit. The analysis unit analyzes the images of the railcars. Based on the analysis, the analysis unit determines a contents status for each of the railcars. A notification module transmits notifications to at least one of the mobile computing devices, where each of the notifications include at least one of: railcar contents statuses or images of the railcars. In response to the transmitting of the at least one notification, the railcars are sorted to different locations via at least one of the plurality of rail yard workers, where each of the different locations are based on a railcar contents status.
Owner:CSX TRANSPORTATION INC

Safety risk assessment system based on railway yard information

The invention discloses a safety risk assessment system based on railway station yard information, relates to the technical field of railway transportation safety, and solves the problems that in the prior art, when risk prediction models are constructed in newly-built station yards and low-risk station yards, a small amount of training data often exist, and the risk risk is poor. The technical problems of long time consumption and low efficiency of the deployed security risk assessment system are solved. A railway safety knowledge graph is constructed according to station yard data, and a risk prediction model is generated according to the railway safety knowledge graph; generating a prediction risk event and a prediction risk level according to the risk prediction model, then generating an alarm signal, and constructing a railway safety knowledge graph and the risk prediction model through fusion, so as to enhance the risk identification precision and realize pre-warning; a multi-source heterogeneous data time sequence coding technology is adopted, and cross-frequency data are unified to realize comprehensive analysis; the target station prediction model is trained by using the multi-source station risk data, the problem of insufficient target station training data is solved, and the accuracy and application efficiency of the security risk assessment system are improved.
Owner:中科智感科技(湖南)有限公司

Hydraulic formwork trolley for railway yard drainage ditch construction

The utility model discloses a hydraulic formwork trolley for construction of a drainage ditch of a railway yard, which comprises a main truss, electric walking wheels, a supporting lifting oil cylinder, a supporting oil cylinder, an outer side formwork assembly, an inner side formwork and bottom formwork assembly, a cover plate groove formwork assembly and an operation center console, the supporting lifting oil cylinder is arranged on the main truss, the bottom end of the supporting lifting oil cylinder is connected with the supporting oil cylinder, and the outer side formwork assembly, the inner side formwork, the bottom formwork assembly and the cover plate groove formwork assembly are connected to the main truss. The electric walking wheels, the supporting lifting oil cylinders, the supporting oil cylinders, a driving mechanism of the outer side mold assembly, a driving mechanism of the inner side mold and bottom mold assembly and a driving mechanism of the cover plate groove mold plate assembly are all connected with the operation center console. The construction efficiency of the railway yard drainage ditch is improved, the construction operation time is shortened, the construction safety quality is guaranteed, and the construction cost is reduced.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1

Large railway yard contact net transformation construction method

The invention discloses a transformation construction method for a large railway yard contact net. A first set of existing stand columns, a second set of existing stand columns, a third set of existing stand columns and existing lines are included. The transformation construction method comprises the steps that layout design is conducted, specifically, a transformation line is arranged at an existing line, and an existing stand column located in the transformation line is marked as a first stand column; marking an existing stand column which is located on the outer side of the transformation line and located on the outer side of the existing line as a second stand column; the remaining existing stand columns located on the outer side of the transformation line are marked as third stand columns; existing pillar detection: carrying out internal crack detection and wall thickness detection on weld joints and joints of a second pillar and a third pillar; reconstruction construction is conducted, a new stand column is newly built on one side of the first stand column, and the corresponding first stand column is dismantled; a stay wire is additionally arranged on the side, away from the existing line, of the third stand column; and a new second stand column is newly built on the outer side of the reformed line. The method reduces the construction cost, shortens the construction period, reduces the construction interference and is worthy of popularization.
Owner:ELECTRICAL SERVICE & ELECTRIFICATION ENG +1

Waterproof and drainage structure for railway yard roadbed in high-water-level salinized soil permafrost region

The utility model discloses a waterproof and drainage structure for a railway yard roadbed in a high-water-level salinized soil permafrost region, and belongs to the technical field of railway yard roadbed drainage. The structure comprises a filling layer, and the filling layer comprises a lower drainage layer, a conventional filling layer, a roadbed bottom layer, an upper water-resisting layer and an upper filler layer which are sequentially arranged from bottom to top and incline towards the outer side; the upper water-resisting layer is provided with a PVC waterproof and drainage plate, the PVC waterproof and drainage plate introduces upper water into the upper portion of the torrent groove, and the torrent groove extends to the U-shaped side ditch. The lower drainage layer comprises a broken stone hardcore, a composite waterproof and drainage plate and a broken stone material layer which are sequentially arranged from bottom to top, a plastic blind ditch is clamped in the broken stone material layer, and the plastic blind ditch extends to the U-shaped side ditch, so that a lower water body is guided to the U-shaped side ditch. Through the arrangement, rapid drainage of water is achieved, the infiltration effect of underground water and rainfall on the upper portion is prevented, and the influence of water on roadbed stability is weakened.
Owner:LANZHOU JIAOTONG UNIV

Large-scale railway station plane rapid construction method based on graph theory

This invention provides a rapid construction method for large-area railway station yards based on graph theory. First, the large-area railway station yard is divided into zones, primarily based on distance from the operational troop's encampment. Construction module nodes are then generalized based on these zones, and construction routes are generalized based on existing access roads. The construction organization of each module within the railway station yard is controlled by the construction roads under certain conditions; therefore, from a graph theory perspective, this can be viewed as a directed graph. A station yard construction organization model is established, and finally, a hybrid graph theory model of the construction sequence is created. Based on graph theory principles, construction time and costs can be minimized. This invention creatively applies graph theory for the first time to the construction organization and scheme optimization of large-scale planar port station yards, achieving rapid construction under high-temperature and rainy conditions. It belongs to the field of railway station yard construction.
Owner:CHINA RAILWAY ERJU 1ST ENG CO

Movable rail displacement observation pile

The utility model discloses a mobile rail displacement observation pile belongs to railway maintenance technical field, the utility model provides a kind of mobile rail displacement observation pile with measurement accuracy and track passability, and repeated positioning error is realized ≤0.5mm using positioning pin positioning, and multi-directional height adjusting mechanism can make the plate body of adjustable mounting base carry out real-time leveling, in actual use, positioning hole on movable observation pile is aligned with positioning pin insertion installation, after detection is completed, detachable observation pile is removed, and the detection of a point is completed, the application can be repeatedly disassembled, while realizing rail displacement detection, again not encroaching on track clearance influence track normal operation, effectively solve the problem that traditional detection device encroaches on track space, and the problem of big cumulative error, suitable for high frequency displacement detection scene of railway station and turnout area.