高速铁路双块式无砟轨道路基地段结构设计与施工技术研究OA北大核心
Research on Structure Design and Construction Technology of Bi-Block Ballastless Track for Subgrade Sections of High-Speed Railway
为了提高双块式无砟轨道的设计和施工质量,首先对路基地段双块式无砟轨道道床板和支承层的功能定位进行分析,提出连续道床板和分块道床板两种结构设计方案的主要特点和设计要点,并对两种设计方案进行结构受力和配筋计算.然后从抗压强度、结构耐久性、疲劳强度、裂缝控制等要求研究道床板混凝土的强度等级,提出道床板混凝土强度采用C40是足够的,且强度不宜太高.最后结合目前双块式无砟轨道施工和运营经验,提出道床板和支承层在施工过程中应注意的一些问题.
In order to improve project quality of structure design and construction technology of Bi-Block ballastless track,the functions of track slab and supporting layer for subgrade sections are analyzed,and two alternative design schemes are presented.The differences between the two lie largely in that the track slabs are continuous or un-continuous units.The main features and design elements of the two are also put forward,and structure stress analysis and…查看全部>>
王森荣
中铁第四勘察设计院集团有限公司,武汉430063
交通工程
高速铁路双块式无砟轨道CRTS Ⅰ型结构设计道床板路基施工
High-speed railwayBi-block ballastless trackCRTS-Ⅰ typeStructure designTrack slabSubgradeConstruction
《铁道标准设计》 2017 (11)
1-7,7
中国铁路总公司专项课题(J2015C006)
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