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。
Research purposes： In 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.
出处
《铁道工程学报》
EI
北大核心
2010年第12期18-22,共5页
Journal of Railway Engineering Society
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
passenger dedicated railway
ballastless track
track formation foundation
different settlement control
stiffness uniformity
longitudinal section design of subgrade
