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西安地铁地裂缝段道岔区轨道结构研究与应用
Turnout Track Structure on a Section of Xi’an Metro with Ground Cracks ─ Study and Application


作者:孙大新,金 晋

作者(英文):Sun Daxin,Jin Jin

单位:北京城建设计研究总院有限责任公司

单位(英文):Beijing Urban Engineering Design &Research Institute Co., Ltd.

关键词:城市轨道交通;西安;地裂缝;轨道;道岔;岔枕

关键词(英文):Xi’an; ground crack; track; turnout; sleeper

分类号:

出版年·卷·期(页码):2013·26·第6期(84-87)

DOI:


-----摘要:-------------------------------------------------------------------------------------------

结合西安地铁2号线的地裂缝特性、线路条件及轨道技术要求,通过方案比选,确定在地裂缝影响区域内的道岔区采用碎石道床并配置预应力混凝土岔枕的方案。采用有限元方法与传统计算方法对照进行岔枕的结构分析,针对地铁荷载、轨道结构高度及岔区设置条件等因素,合理确定岔枕的外形尺寸及钢筋配置。这一轨道结构已在西安地铁2号线成功运营使用超过1年,在国内地铁碎石道床道岔地段开始取代传统木岔枕结构。



-----英文摘要:---------------------------------------------------------------------------------------

Considering the ground cracks in the turnout zone of Xi’an metro Line 2, as well as line conditions and technical requirements of tracks, an option of ballast bed with prestressed concrete sleepers was determined through option comparison. In line with the subway load characteristics, height of rail structure and installation conditions and other factors, finite element method and conventional method were adopted to analyse the structure of turnout sleepers. Configuration and dimension of sleepers and their reinforcement were reasonably determined. This kind of track structure has been successfully used on Xi’an metro Line 2 over 1 year. On turnout with ballast bed wooden sleepers are replaced by prestressed concrete sleepers gradually in China.



-----参考文献:---------------------------------------------------------------------------------------


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若需在您的论文中引用此文,请按以下格式著录参考文献:
中文著录格式: 孙大新,金 晋.西安地铁地裂缝段道岔区轨道结构研究与应用.都市快轨交通,2013,26(6):84-87.
英文著录格式: Sun Daxin,Jin Jin.Turnout Track Structure on a Section of Xi’an Metro with Ground Cracks ─ Study and Application.URBAN RAPID RAIL TRANSIT.26(6):84-87.

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