地铁车站标准化断面人行通道类矩形顶管机的针对性设计与施工技术——以上海轨道交通14号线静安寺站工程为例  

Targeted Design and Construction Technology of Quasi-Rectangular Pipe Jacking Machine for Standard Cross-Section Pedestrian Passage in Metro Station:A Case Study of Jing′an Temple Station of Shanghai Rail Transit Line 14

作　　者：王金一 邱龑 WANG Jinyi;QIU Yan(Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200232,China)

机构地区：[1]上海隧道工程有限公司,上海200232

出　　处：《隧道建设（中英文）》2023年第S02期565-577,共13页Tunnel Construction

摘　　要：为实现城市核心区地下交通线网人行通道的绿色高效建造,探讨将现有断面形式多样、施工工艺繁杂的地下人行通道建造技术标准化、规范化的可行性,依托国内首个软土地区大断面矩形顶管法暗挖车站——上海轨道交通14号线静安寺站工程,在确定其站厅层人行通道断面形式设计的前提下,针对性地研制全断面类矩形隧道掘进机。详细介绍适应此种断面隧道开挖的类矩形顶管掘进机的切削系统、壳体系统、纠偏中继间系统、主顶进系统、驱动系统、螺旋机出土系统等主要系统的针对性设计;开发与此装备相适应的施工工艺,研究其进出洞地基加固、洞门止水、施工参数控制、管节减摩泥浆及控制施工工艺、土体改良等主要施工控制措施。现场实测变形数据分析表明:隧道轴线要求控制在±50 mm,地表沉降控制在-15.49~5.03 mm,满足工程要求,为城市轨道交通建设中实现全断面机械法开挖人行通道提供了一种标准化的解决方案。To realize the green and efficient construction of pedestrian passages in the underground transportation network in the urban core area,the feasibility of standardizing the construction technology of the existing underground pedestrian passages with various cross-section forms and complex construction technology is discussed.In this study,a case study is conducted on the large cross-section mined Jing′an Temple station of Shanghai metro line 14 constructed by rectangular pipe jacking method in soft soils in China,and a full-section quasi-rectangular tunnel boring machine is developed on the premise of determining the cross-section design of the pedestrian passage on the station hall floor.The specific design of the cutting,shell,rectifying relay,main jacking,driving,and screw excavating systems of the quasirectangular pipe jacking machine suitable for tunnel excavation of this section is introduced in detail.The construction technology suitable for this equipment is developed,and the main construction control measures such as foundation reinforcement,water sealing of tunnel door,construction parameter control,anti-friction mud of pipe joint,control construction technology,and soil improvement are studied.The analytical results of in-situ measured deformation data show that the tunnel axis should be controlled within±50 mm,and the surface settlement should be controlled within-15.49-5.03 mm,which meets the engineering requirements and provides a standardized solution for the realization of full-section mechanical excavation of pedestrian passages in urban rail transit construction.

关 键 词：地铁车站 人行通道 类矩形顶管 标准断面 隧道掘进机 顶管顶进技术 

分 类 号：U45[建筑科学—桥梁与隧道工程]