叠摞地铁区间轨排井设计方案研究
Analysis and Design of Track Panel Wells in Overlapping Subway Tunnels
李月阳 1杜玉峰 1刘飞 2王伟锋 1李哲 2靳天睿2
作者信息
- 1. 北京市轨道交通设计研究院有限公司,北京 100068;北京市轨道交通工程技术研究中心,北京 100068
- 2. 北京建筑大学土木与交通工程学院,北京 102612
- 折叠
摘要
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.
Abstract
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.
关键词
城市轨道交通/高水压细颗粒地层/叠摞地铁区间/轨排井设计/结构方案Key words
urban rail transit/high water pressure fine particle stratum/overlapping subway tunnel/track panel well design/structural scheme引用本文复制引用
基金项目
北京市教委科技项目(KM201810016005)
出版年
2024
NETL
NSTL
万方数据