地下结构设计中易混淆问题辨析
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摘要
针对地下结构设计和施工中各种不确定因素影响结构设计安全的问题,对设计过程中常用但易混淆的概念予以分析,给出了地下结构荷载取值、结构计算、抗浮计算方法,浅埋暗挖法通道的截面形式、初期支护形式,以及相应的结论性建议;结合现场施工过程中的各种工况,给出了盾构始发、过站、调头等的边界条件和使用范围。
In the design and construction of underground structures,various uncertain factors often influence the structural design safety. In this paper,some commonly used but confusing concepts during the design process are analyzed and the corresponding calculation methods are recommended. In the complex design of underground structure,the calculation method of load values,structure and anti-float design are given,the cross section of channels by the shallow mining method and the initial support material are proposed. Based on various operating conditions in construction process,such as the boundary conditions and applying scopes of the originating,station crossing and turn around of the shield machine,the corresponding preliminary safety criteria for the structure and concluding recommendations is put forw ard.
In the design and construction of underground structures,various uncertain factors often influence the structural design safety. In this paper,some commonly used but confusing concepts during the design process are analyzed and the corresponding calculation methods are recommended. In the complex design of underground structure,the calculation method of load values,structure and anti-float design are given,the cross section of channels by the shallow mining method and the initial support material are proposed. Based on various operating conditions in construction process,such as the boundary conditions and applying scopes of the originating,station crossing and turn around of the shield machine,the corresponding preliminary safety criteria for the structure and concluding recommendations is put forw ard.
引文
[1]中华人民共和国建设部.混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2010:22.
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[3](日)土木学会.日本隧道标准规范(盾构篇)及解释[M].北京:中国建筑工业出版社,2011:40.
[4]中华人民共和国建设部.高层建筑筏形与箱形技术规范:JGJ6—2011[S].北京:中国建筑工业出版社,2011:32.
[5]中华人民共和国住房和城乡建设部.地铁设计规范:GB50175—2003[S].北京:中国计划出版社,2003:92-93.
[6]铁道部第二勘测设计院.铁路工程设计技术手册[M].北京:中国铁道出版社,1995:93-95.
[7]王梦恕.中国隧道及地下工程修建技术[M].北京:人民交通出版社,2010:282-284.
[8]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2004:80-111.
[9]乐贵平,贺少辉,罗富荣,等.北京地铁盾构隧道技术[M].北京:人民交通出版社,2012:92-94.
[2]中华人民共和国铁道部.铁路隧道设计规范:TB 10003—2005[S].北京:中国铁道出版社,2005:23-24,119-120.
[3](日)土木学会.日本隧道标准规范(盾构篇)及解释[M].北京:中国建筑工业出版社,2011:40.
[4]中华人民共和国建设部.高层建筑筏形与箱形技术规范:JGJ6—2011[S].北京:中国建筑工业出版社,2011:32.
[5]中华人民共和国住房和城乡建设部.地铁设计规范:GB50175—2003[S].北京:中国计划出版社,2003:92-93.
[6]铁道部第二勘测设计院.铁路工程设计技术手册[M].北京:中国铁道出版社,1995:93-95.
[7]王梦恕.中国隧道及地下工程修建技术[M].北京:人民交通出版社,2010:282-284.
[8]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2004:80-111.
[9]乐贵平,贺少辉,罗富荣,等.北京地铁盾构隧道技术[M].北京:人民交通出版社,2012:92-94.