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Customized High-speed EMU Design Practice for Jakarta-Bandung HSR

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Chinese Railways 2024年第1期 52-61页

作者： TAO Guidong ZHANG Fangtao zheng mingda(Translated) Technical Center CRRC Qingdao Sifang Co.Ltd. 不详

The high-speed EMUs for Jakarta-Bandung high-speed railway(HSR)represent an important image and symbol of the Jakarta-Bandung HSR *** relying on the technical platform of the model CR400 EMU,the EMU is upgraded for the customized design in terms of adaptability to geographical environment and track conditions,integration of Indonesian cultural characteristics,*** the course of development,in order to accurately grasp the boundary conditions and solve matching adaptation problems,studies are conducted on the exploration of design boundary and the related special *** the systematic analysis and design experience summary of the high-speed EMUs for Jakarta-Bandung HSR,the paper aims to provide reference for the O&M of high-speed EMUs for Jakarta-Bandung HSR and the other similar overseas HSR projects.

关键词： Jakarta-Bandung HSR EMU natural environment track conditions humanistic demand customized design

Deformation Mechanism and Design Countermeasures of Tunnel Portal in Volcanic Deposit Clay Stratum

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Chinese Railways 2024年第1期 38-45页

作者： XIA Jian Engineer Senior zheng mingda(Translated) Overseas Business Department China Railway Design CorporationTianjin

Shortly after tunneling,problems such as primary-support through cracks and clearance infringement are found in the shallow-buried section of tunnel No.4 of the Jakarta-Bandung High Speed Railway(Jakarta-Bandung HSR),and orthogonal cracks can be found on the earth surface in front of the working face,which brings great challenges to the tunnel *** view of the above engineering problems,the sliding surface is speculated according to the geological and field conditions,and the impact of landslides is applied in the model in the form of external *** paper uses the numerical simulation method to analyze and compare the impact of landslides on the tunnel structure and deformation,and puts forward the reinforcement *** conclusions of the studies are:(1)under the influence of heavy rainfall,the strength index of volcanic deposit clay stratum drops sharply,and meanwhile the multiple factors including tunnel excavation are liable to cause sliding of the front slope;(2)parallel landslide in front of the tunnel has a great impact on the tunnel,so setting-up of pre-reinforcement measures to control landslide shall be the focus of similar projects during design;(3)the deformation and stress of the tunnel structure can be significantly controlled for safe construction by strengthening the shallow-buried tunnel with pile foundation and longitudinal and transverse beam frames during landslide.

关键词： Jakarta-Bandung HSR tunnel clay stratum numerical simulation deformation mechanism anti-slide pile

Tackling Key Technological Problems and Advancing 5G Technology Application in Railway

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Chinese Railways 2023年第1期 3-12页

作者： ZHOU Li zheng mingda Department of Science Technology and Information TechnologyChina State Railway Group Co.Ltd. 不详

The paper summarizes the development of mobile communication of domestic and foreign railways,and proposes the priorities for tackling key technological problems of railway 5G private network according to the technical routes of railway next-generation mobile communication determined by China State Railway Group Co.,*** the aspects of work objectives,principles,technical routes and innovative working methods,the paper elaborates the ideas of railway 5G scientific and technological research,puts forward the contents and plans of scientific and technological research on railway 5G private network,systematically organizes the achievements in the scientific and technological research stage of railway 5G private network,and sets forth the key contents of next-step scientific and technological research.

关键词： railway mobile communication system railway 5G private network tackling key problems in science and technology on 5G private network

Scheme of Railway 5G Integrated Innovation Test Platform

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Chinese Railways 2023年第1期 62-70页

作者： CHAI Jinchuan zheng mingda National Railway Track Test Center China Academy of Railway Sciences Corporation Limited 不详

An inevitable trend has already taken shape for the application of the 5th Generation Mobile Communication Technology(5G)in the railway *** application scenarios and business types of the railway sector are complex and diverse,so it is indispensable to test and verify the railway 5G before actual *** design and creation of the railway 5G integrated innovation test platform provides engineering design,test and verification conditions for the networking,coverage and business development of 5G public networks and 5G-R in railway *** paper introduces the design of the overall architecture for the integrated railway 5G innovation test platform according to the railway network requirements,application scenarios and intelligent development trend;respectively elaborates on the design of the 5G-R core network,bearer network and wireless access along loop tracks,in combination with the characteristics of railway scenarios and the requirements of railway dispatching,operation and safety;raises further solutions on the network deployment and coverage schemes of 5G public networks so as to meet the application requirements of 5G public *** study results show that the integrated railway 5G innovation test platform scheme contains co-existence of 5G public and private networks,combines the indoor and outdoor scenarios,as well as takes into account of the dynamic and static tests so as to meet the environmental requirements for the integrated railway 5G test and application of all network functions,for which it can provide comprehensive technical support for railway 5G technology research and development,standard formulation,testing,etc.

关键词： railway communication 5G public network 5G-R integrated innovation test platform

Comparison and Selection of Arch-Rib Construction Schemes for Continuous Beam arch Composite Bridge of High Speed Railway

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Chinese Railways 2023年第2期 35-43页

作者： ZHOU Weiming zheng mingda(Translated) Engineering Management Department China Railway 24th Bureau Group Anhui Engineering Co.Ltd. 不详

The paper summarizes the four different construction schemes based on engineering cases for the arch rib construction of continuous beam-arch composite bridges for high-speed *** methods include in-situ assembly,segmental lifting,incremental launching and longitudinal moving,and vertical *** temporary structural designs,process methods,and technological equipment for each construction scheme are described in *** advantages and disadvantages of each scheme and its application scope under various conditions are analyzed,and opinions and suggestions for guiding the application of each scheme are *** comparison and selection analyses show that the four arch rib construction schemes have certain applicability under different conditions such as bridge site status,bridge span,and construction *** the continuous increase of bridge span and progress of construction technological equipment,the arch rib construction technology is developing towards the overall erection *** leads to more obvious technical advantages of the segmental lifting method,incremental launching and longitudinal moving method,and vertical rotation ***,it is necessary to select the best construction scheme according to the construction status and technical conditions during application.

关键词： high-speed railway(HSR) continuous beam-arch composite bridge arch rib in-situ assembly segmental lifting incremental launching and longitudinal moving vertical rotation

Carrying Railway 5G Service Application by Multi-technology Convergence

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Chinese Railways 2023年第1期 35-44页

作者： YANG Rui GUO Guifang ZHAO Wuyuan zheng mingda Beijing Railway Communication Technology Center 不详

The application scenarios of railway radio communication are complex,while the existing narrowband communication such as GSM-R and radio train dispatching system fails to meet the requirements of service application *** carrying capacity of railway 5G-R has been greatly improved,mainly for wide-area train-ground communication services such as dispatching communication,train control and train operation safety ***,for large passenger stations,freight yards,maintenance bases and other places with densely populated railway operators,it is unable to carry overall railway service applications limited by the spectrum bandwidth of 5G private networks,so it is necessary to consider various radio technologies for *** paper also elaborates the railway service application scenarios,analyzes the characteristics of radio communication technologies such as 5G mmWave and the 6th-generation wireless LAN technology(Wi-Fi6),and discusses the schemes of multi-technology convergence carrying railway 5G service applications.

关键词： 5G-R service application technology convergence 5G mm Wave WLAN

Research on Practice of Excellent Railway Passenger Station Construction and High-quality Development

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Chinese Railways 2022年第1期 8-17页

作者： QIAN Guifeng Engineering Management Center China State Railway Group Co.Ltd Office of Leading Group for Construction of Passenger Stations in Beijing-Tianjin-Hebei Region China State Railway Group Co.Ltd.

Taking the construction of excellent passenger stations in Beijing-Tianjin-AHebei region as the research object,the paper discusses the implementation of the new concept of building up“well-connected fully-integrated,envioment-friendlyy passenger-oriented,economically-eficient,culturally-rich intelligent and convenient”railway passenger stations It then strives to analyze the connotation of an excellent railway passenger station,the construction and management methods,and the innovation of the working mechanism in the new *** offers thoughts and methods for promoting the highquality development in the practice of construction for innovative development of excellent passenger stations.

关键词： railway passenger station construction practice new concepti excellent passenger station high-qualitydevelopment

Key Technology and Complete-set Equipment for Intelligent Construction of HSR Simply-supported Girder Reinforcement Framework

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Chinese Railways 2023年第2期 12-19页

作者： zheng Hemin NIU Yuanzhi YIN Aiguo ZHANG Shaopeng LI Yanyun HUANG Yimiao zheng mingda(Translated) China Railway Design Corporation China Railway Seventh Group Co. Ltd. TJK Machinery(Tianjin)Co. Ltd. School of Civil and Transportation Engineering Hebei University of Technology 不详

In view of the problems such as backward production mode,poor quality stability,high safety risk and incomplete control system during erection of the reinforcement framework of simply-supported box girders for high-speed railway(HSR),and in combination with the key points and main challenges in the reinforcement framework construction of Guangzhou-Zhanjiang HSR,the overall technical route for the intelligent manufacturing of reinforcement framework of simply-supported box girders is put *** component design of reinforcement framework of simply supported box girder is carried out based on BIM,and the feasibility of the scheme is verified through segment assembly *** assembly techniques are studied in combination with the mesh design scheme to achieve rapid forming of the reinforcement framework.R&D of automatic processing equipment for components,material transshipment equipment,automatic hoisting equipment and technological equipment for assembly clamping fixture are carried out to realize the overall design of equipment production *** intelligent control system is developed for the whole-process intelligent construction of reinforcement framework to realize the full life-cycle applications for the workshop production and visual management including intelligent layout and quality *** research results systematically optimize and innovate the assembly and forming technologies of reinforcement framework in the prefabrication beam yard of high-speed railway,realize the component processing,automatic assembly and information technology management,improve the construction quality,efficiency and information technology level of intelligent manufacturing of reinforcement framework of railway prefabricated beam as a whole,and reduce the construction cost of the *** research has realized a major breakthrough in the construction technology of railway prefabricated box girders,which has the extensive technical and market promotion values.

关键词： simply-supported box girder reinforcement framework intelligent construction component processing automatic assembly information technology management

New-concept Design Innovation of Passenger Station Construction for Qinghe Railway Station of the Beijing-Zhangjiakou HSR

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Chinese Railways 2022年第1期 54-59页

作者： HUANG Jiahua Engineering Management Center China State Railway Group Co.Ltd Office of Leading Group for Construction of Passenger Stations in Beijing-Tianjin-Hebei Region China State Railway Group Co.Ltd

Qinghe Railway Station is the largest passenger station along the Beijing-Zhangjiakou HSR and will serve as the originating station of this line during the A 2022 Winter *** is also one of the eight major passenger stations *** the construction of this station,all units involved in the construction have made their effors to learn and understand the new concept of building up a“well-connected,filly-integrated,environment-friendly,passenger-oriented,economically-efficient,culturally-rich,inelligent and convenient”passenger station in the new *** Railway Station of the Beijing-Zhangjiakou HSR was completed and opened to traffic by the end of 2019 through exploration of new-concept design innovation for passenger station construction in the new era,which was widely praised by the general *** paper summarizes how the new design concept of passenger station construction is innovated and implemented during the construction of Qinghe Railway Station,thus providing a reference for the future construction of passenger stations.

关键词： Beijing-Zhangjiakou HSR Qinghe Station high-speed railway passenger station construction design innovation