客运专线无砟轨道铁路路基纵断面设计膏

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摘要研究目的：为有效控制客运专线无砟轨道铁路路基与桥梁、隧道连接处的沉降差异、刚度差异，有必要进行路基纵断面面设计。本文论述了路基纵断面设计的作用和意义，并讨论了路基程纵断面设计的内容以及技术要点。

研究结论：客运专线无砟轨道铁路应进行路基工程纵断面设计。路基纵断面设计内容包括：连接处刚度差异、沉降差异检查与处理、工程接口设计的检查与处理。客运专线无砟轨道铁路，应按照“纵断面面优先”的原则，首先进行路基工程纵断面程设计，依据路基工程纵断面设计进行路基横断面辅助设计，路基横断面的数量可以适当减少。

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	魏永幸

关键词 ：客运专线, 无砟轨道, 线下基础, 差异沉降控制, 刚度均匀化, 路基纵断面设计

Abstract：Research purposes: n order to effective control of the settlement and stiffness differences of the subgrade connecting to bridge and tunnel，it is necessary to carry out the longitudinal section design of subgrade．This paper presents the function and significance of the longitudinal section design of subgrade and discusses its main contents and technical gists．

Research conclusions:The longitudinal section design of subgrade shall be carried out for the passenger ballastless track railway．Its content include the inspection and treatment of connected stiffness differences and settlement differences as well as engineering interfaces．For the design of passenger ballastless track railway，the principle of“Longitudinal priority”shall be carried out：firstly the longitudinal section design of subgrade works and then aided design of the transversal section based on its longitudinal section design shall be performed．The quantity of the transversal section of subgrade can be appropriately reduced．

Key words： assenger dedicated railway ballastless track track formation foundation different settlement control stiffness uniformity longitudinal section design of subgrade

收稿日期: 2010-10-20

PACS:

U212．34

作者简介: 魏永幸，1964年出生，男，教授级高级工程师。

引用本文:

魏永幸. 客运专线无砟轨道铁路路基纵断面设计膏[J]. 铁道工程学报, 2010, 27(12): 18-22.
WEI Yong—Xing. Longitudinal Section Design on Ballastless Track Subgrade of Passenger Dedicated Railway. 铁道工程学报, 2010, 27(12): 18-22.

链接本文:

http://tdgcxb.crec.cn/CN/ 或 http://tdgcxb.crec.cn/CN/Y2010/V27/I12/18

[1]铁建设函[2005]754号，客运专线无砟轨道铁路设计指南[S]．

Railway Construction Hart[2005]No．754，Guidelines for Design of Ballastless Track Railway[S]．

[2]铁建设函[2005]140号，新建时速200～250公里客运专线铁路设计暂行规定[S]．

Railway Construction Hall[2005]No．140，Interim Provisions for Design of 200—-250 km／h Newly—-built Passenger Dedicated Railway[S]．

[3]TB 10621--2009，高速铁路设计规范(试行)[S]．

TB 10621--2009，Code for Design of HiglI—speed Railway(Trial)[s]．

[4] 魏永幸，蒋关鲁．客运专线无砟轨道路基关键技术探讨——以遂渝线无砟轨道综合试验段为例[J]．铁道工程学报，2006(5)：39—44．

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[5] 中铁二院工程集团有限责任公司，等．遂渝线无砟轨道试验段路基工程关键技术研究——无砟轨道路基与桥隧涵构筑物刚度匹配技术试验研究[R]．成都：中铁二院工程集团有限责任公司等，2009．

China Railway Eryuan Engineering Group Co，Ltd，Etc． Research On Key Technology of Subgrade EngineeriIIg Ballastless Track Pilot Section of Chongqing—Suining Railway--Experimental Study Oil Stiffness Matching Technology for Ballastless Subgrade with Bridge，Tunnel and Culvert Structures[R]．Chengdu：China Railway Eryuan Engineering Group Co，Ltd， 2009．

[6] 魏永幸，邱延峻．高速铁路无砟轨道路基面支承刚度研究[J]．铁道工程学报，2010(7)：39—44．

Wei Yongxing，Qiu Yanjnn． Bracing Stiffness of Subgrade Surface for Ballastless Track of High—Speed Railway[J]．Journal of Railway Engineering Society，2010(7)：39—44．

[7]蔡成标，徐鹏．高速铁路无砟轨道关键设计参数动力学研究[J]．西南交通大学学报，2010(4)：493—497．

Cai Chengbiao，Xu Peng．Dynamics Research on Parameters for Key Design of HigIl—speed Railway Ballastiess Track[J]．Journal of Southwest Jiaotong University，2010(4)：493—497．

[8]刘洋，赖紫辉．武广铁路客运专线无砟轨道路基工程接口设计[J]．铁道标准设计，2010(1)：192—195．

Liu Yang，Lal Zihui．Interface Design of Subgrade Engineering of Wuhan—Guangzhou Passenger Dedicated Railway Ballastless Track[J]．Journal of Railway Standard Design，2010(1)：192—195