中南大学学报（自然科学版）2026，Vol.57Issue(2)：654-666,13.DOI:10.11817/j.issn.1672-7207.2026.02.014
地铁车站先站后隧再站施工全过程力学特性分析
Mechanical behavior analysis of full construction process in metro station using station-tunnel-station method
摘要
Abstract
To investigate the mechanical characteristics throughout the entire construction process of the"station-first,then tunnel,then station"method for metro stations,the Ningxia Road Station on Qingdao Metro Line 5 was taken as the engineering case.A three-dimensional numerical model for the metro station construction was established.The reliability of the 3D numerical model was validated through comparative analysis of numerical results and field monitoring results.The foundation was built,the evolution patterns of surface settlement,surrounding rock deformation and support structure stresses during the"station-first,then tunnel,then station"construction process were analyzed.Consequently,key construction sequence characteristics and other critical information were identified.The results show that during the"station-first,then tunnel,then station"construction process,both surface settlement and surrounding rock deformation exhibit a distinct staged characteristic pattern,i.e,"initial increase—slow development—rapid increase—trend towards stabilization".During the shield tunneling construction phase for the platform level,the settlement generated at the positions of the left and right haunches account for approximately 13.5%and 16.5%of their respective total settlements during this stage.In contrast,the maximum proportion observed at other monitoring points is only 8.1%,which demonstrates that shield tunneling exerts a more significant influence on the haunch areas.Prior to the removal of temporary supports,the load is mainly borne by the first layer of primary lining and the temporary support structures.After the removal,the stress originally borne by the temporary supports is transferred to the second layer of primary lining,leading to a coordinated bearing mechanism between the first and second layers of the primary support structure.The shield tunneling at the platform level,the pilot tunnel excavation at the concourse level,and the removal of temporary supports are identified as critical construction stages in the"station-tunnel-station"method and should be given special attention.The findings can provide a scientific basis and practical reference for the"station-first,then tunnel,then station construction process".关键词
地铁车站/先站后隧再站施工/双层初期支护结构/力学特性/演变规律Key words
metro station/station-tunnel-station sequential construction/double-layer primary support structure/mechanical behavior/evolution pattern分类
建筑与水利引用本文复制引用
周航,施成华,帅建兵,魏永亮,娄义黎,王身鑫..地铁车站先站后隧再站施工全过程力学特性分析[J].中南大学学报（自然科学版）,2026,57(2):654-666,13.基金项目
国家自然科学基金资助项目(52178402)(Project(52178402)supported by the National Natural Science Foundation of China) （52178402）
