我国高速铁路桥梁和区间路基结构设计方案的比选探讨

Structure Design Comparison Study of Bridge and Interval Roadbed in China's High Speed Railway

高速铁路线路结构有路基、桥梁和隧道等形式,其中桥梁占绝大部分比例,而区间路基占比较少。根据高铁项目实例,从造价、质量、工期和环保节能等方面对桥梁和区间路基结构进行对比分析,论证得出高速铁路线路桥梁结构优于区间路基结构,在线路结构设计上应尽量少用或不用区间路基结构。

High speed railway has structures of roadbed, bridge and tunnel, with bridge structure has the biggest share and interval roadbed structure has the smaller share. Based on practical HSR examples, the bridge structure and interval roadbed are analyzed from the point of cost, quality, construction period, environmental protection and energy conservation. It is concluded that bridge structure is superior to interval roadbed structure, and interval roadbed should be used less or abandoned in the design of high speed railway design.