圆形隧道反向曲线隧道中心线两种偏移计算方法的比较  

Comparison between Two Migration Calculation Methods of Reverse Curve Tunnel Center Line in Circle Tunnel

作　　者：姚应峰[1] 黄建柳[1] 叶芹禄[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《交通标准化》2010年第7期20-22,共3页Communications Standardization

摘　　要：城市轨道交通工程线路设计过程中,在困难地段往往采用反向曲线,反向曲线地段的限界设计是一个关系行车安全的重要问题。对现有的两种隧道中心线偏移计算方法进行比较,提出这两种方法在反向曲线地段设计中的优缺点及注意事项,并从限界的角度给出两反向曲线间夹直线长度设计的合理化建议,可供同行参考。Reverse curve is unusually adopted in difficult section of railway line during its design in urban rail transit project. Design of gauge is an important problem related to driving safety in reverse curve section. By comparing two existing migration calculation methods of tunnel center line, their advantages and disadvantages of design in reverse curve section as well as the notices are proposed, and some rational suggestions are given on length design of intermediate straight line from the perspective of metro gauge, which can be consulted by peers.

关 键 词：城市轨道交通 反向曲线 隧道中心线 限界 夹直线 

分 类 号：U452[建筑科学—桥梁与隧道工程]