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简要介绍地铁设计的基本方法,着重介绍端头井的结构类型、端头井计算的模型和计算中存在的问题,探讨了端头井的分析计算方法.实例计算结果表明,对于端头井结构,不适宜采用平面框架进行计算.在空间分析的前提下,在计算模型上适当做出一定程度的简化,对构件的主要受力特征作了分析和总结,通过和平面结构的对比,提出了端头井结构在设计中应该注意的问题.所得计算结果合理,对工程设计具有指导作用.
This paper briefly introduces the basic design methods of metro, emphasizes on the structure type of terminal shaft, the calculation model of terminal shaft and the existing problems in calculation, and discusses the analysis and calculation method of terminal shaft.Examples show that for terminal shaft structure , It is not suitable to use the plane frame to calculate.On the premise of space analysis, some simplifications are made on the calculation model, and the main force characteristics of the components are analyzed and summarized. By comparing with the plane structure, The design of end well structure should pay attention to the problem.The result of the calculation is reasonable and has the guiding function to engineering design.