本科论文（设计）常州地铁一号线嫩江路站车站基坑围护结构设计与施工.docx

摘要
本毕业设计主要包括四个部分,第一部分是常州地铁一号线嫩江路站车站基坑设计;第二部分是常州地铁一号线嫩江路站基坑施工组织设计;第三部分是专题部分,井壁极限承载力分析;
在第一部分地铁车站基坑设计中,根据基坑所处场地的工程地质、水文地质条件和周边环境情况,通过施工方案的比选,确定采用明挖法施工,围护结构采用地下连续墙,支撑结构采用混凝土支撑与钢支撑,并对其进行相应的强度、内力变形、承载力、抗渗、抗隆起、抗滑移、支撑内力变形验算。
第二部分是车站基坑施工组织设计,根据基坑施工方法和基坑周边的环境情况,对施工前准备工作,施工场地布置,围护结构施工与基坑开挖等进行设计,并编制了工程进度计划,编写了相应的质量、安全、环境保护等措施。
第三部分是专题部分,内容是井壁极限承载力分析。先通过对井筒结构的理论分析,然后结合工程实例和相关的参考资料,总结出有关实际情况下井壁的极限承载力。
关键词:基坑;地下连续墙;施工组织;厚壁圆筒;极限承载力
ABSTRACT
This graduation design mainly includes four parts. The first part is Changzhou Metro Line Nenjiang Road station foundation pit design; the second part is Changzhou Metro Line Nenjiang Road station foundation pit anization design; the third part is the special part and sidewall limit bearing capacity analysis.
In the first part of foundation pit of subway station design, according to the excavation of the site engineering geological and hydrogeological conditions and the surrounding environment, through construction parison and selection, determine the use of open cut construction method, retaining structure using underground continuous wall, supporting structure using concrete support with steel support, and the of strength and stress in the corresponding deformation, bearing capacity, anti permeability and anti uplift, anti slip, support internal force and deformation calculation.
The second part is the station foundation pit anization design, according to the construction method of the foundation pit and the foundation pit surrounding environment, before the construction preparation, construction site layout and envelope structure construction and excavation design, and the preparation of the project schedule, the preparation of the corresponding quality, safety, environmental protection and other measures.
The third part is the subject section, the content is the wall limit bearing capacity analysis. Through the theoretical analysis of the wellbore structure, and bined with engineering examples and relevant reference, the ultimate