为选择地铁轨排井合理设计方案，解决设计过程中较大轨排洞口严重削弱板的刚度、施工工况下传统二 维框架断面计算无法满足设计需求与实际情况的问题，基于北京地铁22 号线管庄站—永顺站区间高水压细颗粒 地层中叠摞地铁区间轨排井设计的具体案例，从工程围护、主体结构方案的设计思路等方面，分析结构计算重难 点等关键问题，并建立二维、三维模型进行结构受力分析。总结设计经验与控制工况，得出合理的设计方案：针 对富水地层较深叠摞轨排井，支护结构采用地连墙与内支撑，主体结构采用加大边梁结构体系抵抗水平荷载。研 究成果对以后地铁建设过程中的轨排井设计可提供参考。

To address these challenges, a pragmatic design approach for the subway track panel and the substantial opening in the panel significantly reduces plate stiffness. Under construction conditions, traditional two-dimensional frame section calculations fail to meet design requirements and real-world conditions. Drawing from a specific case involving the design of a stacked subway track panel in the high-water-pressure fine particle strata east of Beijing, this paper introduces the project’s envelope and main structural design concepts. It examines critical structural calculation issues, consolidates design insights, and outlines operational conditions. The study yields a practical design scheme, offering valuable insights for future subway track panel designs during construction processes.

U231；TU921

北京市教委科技项目(KM201810016005)