广州地铁6号线明暗挖结合车站特点分析

针对广州市轨道交通6号线首期工程的复杂地段,因地制宜、勇于创新地进行明暗挖结合车站的设计实践,全线10座明暗挖车站中,有9种不同形式的明暗结合方式。利用三维建模技术,对各站明暗结合特点进行分析:文化公园左线采用暗挖以免影响地面古树;海珠广场站是国内首次采用上明下暗结合的车站,丰富了明暗结合的形式;一德路站、沙河站车站暗挖区间的施工确保全线的运营开通,突出了明暗挖车站的优点;团一大广场站,地面附属与广场景观融为一体;东山口站先隧后站,确保工期;区庄站超浅埋大断面暗挖,其难度为国内之最;黄花岗站地下站厅与周边环境的充分结合,做到地铁参与各方多赢的格局;燕塘站基底处理成为范例。

Characteristics of Stations Constructed by Open Cut Method and Underground mining Method for Guangzhou Metro Line 6

The open cut method and the underground mining method are both adopted in the construction of the ten stations along the Line 6 of Guangzhou metro because of the complicated engineering conditions of the first-phase construction of this project.Nine different combination forms of the two methods are employed for the ten stations.The characteristics of these combination forms are analyzed with 3D modeling technology.The left line of Wenhua Park Station is constructed with the underground mining method to avoid the impact of the construction on old trees.For Haizhu Square Station,its upper part is built with the open cut method and the lower part the underground mining method.This combination is used for the first time in China.Yide Road Station and Shahe Station are constructed with the underground mining method to ensure the smooth opening of the whole line,which is a new advantage of the station built with the open cut method and the underground mining method.The ground auxiliary structure of Tuanyida Square Station is integrated with the landscape of the square.The Dongshankou Station is built after the completion of the tunnel to guarantee the construction period.Quzhuang Station is constructed with the ultra-shallow large-section underground mining method,which has been the most difficult engineering practice in China so far.The underground concourse of Huanghuagang Station is integrated with the surrounding environment,which satisfies the interests of all stakeholders in the construction of the metro.The base treatment of Yantang Station is taken as a typical sample for other similar engineering projects.