明-暗-盖挖结合的地铁换乘站设计方案比选研究

Comparison and Analysis of Metro Transfer Station Design Schemes Combining Open-underground-covered Excavation

地处繁华市中心的地铁换乘车站,往往周边环境复杂,控制条件较多,对车站设计要求高。以徐州市地铁1、2号线换乘站彭城广场站为例,在站位和路由确定的前提下,结合地铁施工不能影响主路机动车道和交叉路口下方时尚大道商业拆迁困难等情况,筛选出具有代表性的3个方案。从建筑功能、换乘便利性、与周边商业建筑物衔接、区间线路条件、工程风险、工期和施工成本等角度对比分析3个方案,最后确定采用明暗盖挖结合分离岛式站台方案,以期为其他位于繁华市区的地铁换乘车站设计提供参考和借鉴。

Metro transfer station located in civic center often have complex surrounding environment,more stringent requirements for design.Taking Pengcheng square station of Xuzhou Line 1 and Line 2 transfer stations as an example.Given that the station and routing,combined with the metro construction,it can’t effect the main road motor vehicle lanes and the difficulties of commercial demolition on Fashion Avenue under crossroads,three representative schemes for comparative analysis were preselected.Then,from the aspects of building function,transfer convenience,connection degree with the surrounding business,railway line conditions,engineering risk,construction period and investment,the three schemes were deeply investigated and compared.Finally,the separate island platform with the open-underground excavation scheme was determined.The results can provide some suggestions for the design of metro stations in civic center.