摘要
地铁通风竖井是隧道过江的重要附属结构。风井采用地下连续墙围护结构,通过内衬及横向框架逆作施工方法实现。通过有限元计算,给出了内衬逆作过程中地连墙、横向框架的工作状态及降水方法的影响,为风井结构设计、施工过程的安全控制提供了结构力学响应的分析方法。
Air shaft of subway is the major accessory structure of river-crossing tunnel. Continuous concrete wall is used in the air shaft structure, which is built with inversed construction method by using inner liner and transverse frame. The work situation of continuous concrete wall and transverse frame in the procedure of inversed construction and the influence of dewatering are analyzed by FEM, which is provided the analysis procedure of structure dynamic response for design of the air shaft struc- ture and the security control during construction.
出处
《土工基础》
2009年第3期43-46,66,共5页
Soil Engineering and Foundation
关键词
过江隧道
风井结构
逆作施工方法
river-crossing tunnel, air shaft structure, inversed construction method
