首页|城市轨道交通常规及特殊条件下暗挖通道断面拟合方法研究

城市轨道交通常规及特殊条件下暗挖通道断面拟合方法研究

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为解决当前城市轨道交通隧道暗挖断面,采用隧道标准断面无法精确拟合常规通道断面及特殊条件下拟合通道断面存在困难等问题.在查阅分析现有资料的基础上,系统地提出城市轨道交通常规及特殊条件下暗挖断面拟合方法,明确了暗挖断面间几何关系及尺寸计算方法,并分别对典型特殊暗挖型断面——主、被动避让型暗挖通道断面的设计实例进行分析.结果表明:上述方法明确了暗挖通道断面的精确拟合过程,拟合后的断面连接顺滑,应力突变减弱,结构受力合理,并可灵活解决特殊问题下的断面设计问题,为类似工程提供设计依据.
RESEARCH ON SECTION FITTING OF UNDERGROUND CHANNEL UNDER NORMAL AND SPECIAL CONDITIONS OF URBAN RAIL TRANSIT
In the current urban rail transit,it is difficult to fit the sections of underground channels under normal and special conditions based on standard channel sections.Through consulting and analysis of available data,a solution is proposed systematically for underground sections under normal and special conditions of urban rail transit,with specific geometric relationships and dimensional calculations of underground sections.In addition,design cases of active and passive avoidance type underground channel sections(typical special underground sections)are analyzed.Results show that a precise fitting process is indicated for underground channel sections in the aforesaid solution.After fitting,sections are connected smoothly,with less stress mutation,so structures are stressed reasonably.This is also a flexible solution to section design problems under special conditions and design basis for similar projects.

urban rail transitunderground channelarch wallactive avoidancepassive avoidance

文保军、侯莉娜、菅士良、林仕宽

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中铁西安勘察设计研究院有限责任公司,710054,西安

西安工业大学建筑工程学院,710021,西安

城市轨道交通 暗挖通道 拱顶弧墙 主动避让 被动避让

国家自然科学基金陕西省自然科学基础研究计划项目

519785662021JM-435

2023

建筑技术
北京建工集团有限责任公司

建筑技术

影响因子:1.262
ISSN:1000-4726
年,卷(期):2023.54(22)
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