高速铁路长大桥梁CRTSⅠ型双块式无砟轨道无缝线路影响因素分析

曲村; 高亮; 乔神路; 蔡小培

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铁道工程学报 ›› 2011, Vol. 28 ›› Issue (3) : 46-51.

路网研究

高速铁路长大桥梁CRTSⅠ型双块式无砟轨道无缝线路影响因素分析

曲村，高亮，乔神路，蔡小培

作者信息 +

Analysis of Influence Factors on CRTSⅠDouble － block Ballastless Track CWR on Long － span Bridge of High － speed Railway

QU Cun，GAO Liang，QIAO Shen － lu，CAI Xiao － pei

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文章历史 +

摘要

研究目的：当大跨度连续梁桥上铺设了CRTSⅠ型双块式无砟轨道结构之后，其梁轨相互作用机理更加复杂，原有的计算方法、计算模型及设计参数可能不再适用。针对既有研究的不足，本文基于有限元方法建立纵横垂向空间耦合模型，对道床板和底座板年温差、扣件纵向阻力、橡胶垫板弹性模量和隔离层摩擦系数等设计因素的影响规律进行计算与分析，为高速铁路长大桥梁CRTSⅠ型双块式无砟轨道无缝线路的设计参数的选择提供参考。

研究结论:在进行设计与检算时，应根据不同地区的实际情况分别选取当地不同的年温差作为道床板和底座板的温差取值; 通过在桥上采用小阻力扣件，可以明显降低钢轨最大纵向附加力及轨道结构的受力，但当扣件纵向阻力较小时，在长大桥梁的梁端处，扣件的爬行量较大，需要重点加以关注; 在限位凹槽周围侧面应设置高弹橡胶垫板; 道床板和底座板之间应尽量采用较小摩擦系数的隔离层。

Abstract

Research purposes: When the CRTSⅠdouble － block ballastless track is laid out on long － span continuous bridge，the principle of interaction between bridge and rail is more complicated，and the traditional calculated method，calculated model and design parameters are unavailable． With the finite element method，the longitudinal － transverse －vertical spatial coupled model is established to calculate and analyze the influencing laws of design factors，such as the annual temperature difference between the track bed slab and bed plate，fastening longitudinal resistance，elastic modulus of rubber pad and friction coefficient of isolation layer，and the advices are given on the selection of design parameters of CRTSⅠdouble － block ballastless track CWR on long － span bridge of high － speed railway．

Research conclusions: In the process of design and check，the temperature difference between the track bed slab and bed plate should be selected as different annual temperature difference according to actual situation of different regions．Application of small resistance fastenings on bridge would reduce the maximum additional longitudinal rail force and track structure stress obviously，but the creeping amount of fastening on the beam end of long － span bridge would be big and should be paid attention to． The high － elastic rubber pad should be installed around the positive stop groove． The isolation layer with friction coefficient should be installed between track bed slab and bed plate．

导出引用

曲村, 高亮, 乔神路, 等. 高速铁路长大桥梁CRTSⅠ型双块式无砟轨道无缝线路影响因素分析[J]. 铁道工程学报, 2011, 28(3): 46-51

QU Cun, GAO Liang, QIAO Shen － lu, et al. Analysis of Influence Factors on CRTSⅠDouble － block Ballastless Track CWR on Long － span Bridge of High － speed Railway[J]. Journal of Railway Engineering Society, 2011, 28(3): 46-51

中图分类号： U238 U213． 244

参考文献

［1］蒋建设，罗新南，彭仁军．武广客运专线CRTSⅠ型双块式无砟轨道施工设备配套研究［J］．铁道工程学报，2009( 7) : 54 － 56．

Jiang Jianshe，Luo Xinnan，Peng Renjun． Research on the Equipments for Construction of CRTSⅠ Ballastless Track on Wuhan － Guangzhou Passenger Dedicated Line［J］． Journal of Railway Engineering Socity，2009( 7) : 54 － 56，66．

［2］严少发，丁立金，王善高．隧道内CRTSⅠ型双块式无砟轨道施工关键技术［J］．铁道工程学报，2009( 11) : 13 － 16．

Yan Shaofa， Ding Lijin， Wang Shangao． Key Construction Technology for CRTS Ⅰ Double － block Ballastless Track in Tunnel ［J］． Journal of Railway Engineering Socity，2009( 11) : 13 － 16．

［3］赵东田，孙晖． CRTSⅠ双块式无砟轨道综合整理技术［J］．铁道标准设计，2009( 11) : 28 － 30．

Zhao Dongtian， Sun Hui． Integrated Finishing Technology for CRTSⅠDouble － block Ballastless Track［J］． Railway Standard Design，2009( 11) : 28 － 30．

［4］刘彬．武广铁路客运专线CRTSⅠ型双块式无砟轨道施工工艺及质量控制［J］．铁道标准设计，2010( 1) : 58 － 63．

Liu Bin． Construction Technology and Quality Control for CRTSⅠDouble － block Ballastless Track on Wuhan －Guangzhou Passenger Dedicated Line ［J］． Railway Standard Design，2010( 1) : 58 － 63．

［5］张峰． CRTSⅠ型双块式无砟轨道施工精度和动静态精调工作要点［J］．铁道标准设计，2010( 1) : 69 － 71．

Zhang Feng． The Main Points of Construction Accuracy and Dynamic and Static Fine Tuning of CRTSⅠDouble －block Ballastless Track ［J］． Railway Standard Design，2010( 1) : 69 － 71．

［6］伍林． CRTSⅠ型双块式无砟轨道精调技术研究［J］．铁道标准设计，2010( 1) : 74 － 79．

Wu Lin． Research of Accuracy Technology of CRTSⅠDouble － block Ballastless Track［J］． Railway Standard Design，2010( 1) : 74 － 79．

［7］刘世海，郭建钢，王波． CRTSⅠ型双块式无砟轨道静态调整和动态调整技术［J］．铁道标准设计，2010 ( 1) : 80 －84．

Liu Shihai，Guo Jiangang，Wang Bo． Research of Static and Dynamic Adjustment of CRTS Ⅰ Double － block Ballastless Track ［J］． Railway Standard Design，2010( 1) : 80 － 84．

［8］李方东．武广铁路客运专线CRTSⅠ型双块式无砟轨道施工关键技术［J］．铁道建筑，2010( 1) : 26 － 29．

Li Fangdong． Key Construction Technology for CRTSⅠDouble － block Ballastless Track on Wuhan －Guangzhou Passenger Dedicated Line ［J］． Railway Engineering，2010( 1) : 26 － 29．

［9］陈政． CRTSⅠ型双块式无砟轨道道床板轨排稳定控制技术［J］．铁道建筑，2010( 1) : 30 － 31．

Chen Zheng． Stability Control Technology for Track Bed Slab Track Panel of CRTS Ⅰ Double － block Ballastless Track［J］． Railway Engineering，2010( 1) : 30 －31．

［10］姜强．桥上CRTSⅠ型双块式无砟轨道简易工装法施工技术［J］．铁道建筑技术，2010( 1) : 67 － 70．

Jiang Qiang． Construction Technology for Simple Tooling Method of CRTSⅠDouble － block Ballastless Track on Bridge ［J ］． Railway Construction Technology，2010( 1) : 67 － 70．

［11］陈鹏，高亮，冯雅薇，等．连续梁桥上无缝线路纵向附加力的变化规律［J］．北京交通大学学报，2007( 1) : 85 － 88．

Chen Peng，Gao Liang，Feng Yawei，etc． Variety Rules of Additional Longitudinal Force of Continuously Welded Rails on Bridge with Continuous Beam ［J］．Journal of Beijing Jiaotong University，2007 ( 1 ) : 85 －88．