青岛地铁1号线双护盾TBM施工技术创新  

Construction Technology Innovation of Double-Shield Tunnel Boring Machine in Qingdao Metro Line 1

作　　者：郭志 曲秋芬 樊治国 刘桂涛 路效峰 宫迎雷 GUO Zhi;QU Qiufen;FAN Zhiguo;LIU Guitao;LU Xiaofeng;GONG Yinglei(CSSC(Qingdao)Rail Transit Equipment Co.,Ltd.,Qingdao 266111,Shandong,China;Romay(Qingdao)Co.,Ltd.,Qingdao 266108,Shandong,China)

机构地区：[1]中船重工(青岛)轨道交通装备有限公司,山东青岛266111 [2]隆美新型复合材料(青岛)制造有限公司,山东青岛266108

出　　处：《隧道建设（中英文）》2021年第8期1385-1391,共7页Tunnel Construction

摘　　要：为解决双护盾TBM在城市轨道交通隧道施工过程中遇到的始发场地受限不具备施作始发洞条件,双线小净距隧道掘进和频繁过站工效低、经济性差等工程难题,以青岛地铁1号线为背景,总结双护盾TBM应用于青岛地铁2号线的经验,结合青岛地铁1号线的具体工况和TBM设备特点,发展并实施基于掘进模式、掘进参数和姿态控制的双护盾TBM负环始发技术,基于先行隧道加装移动式支撑台车和袖阀管注浆加固的双线隧道小净距掘进技术和基于换装预制钢支腿的后配套台车“踩高跷”过站技术。这些施工技术的创新应用成功应对了青岛地铁1号线施工过程中遇到的特殊工况。When a double-shield tunnel boring machine(TBM)is applied in urban rail transit,there are always several limitations,such as no condition for launching shaft construction,low construction efficiency due to double-track smallspacing excavation and frequent station passing,and low economic benefit.Accordingly,a case study is conducted on Qingdao metro line 1.Further,the applicable experience of double-shield TBM used in Qingdao metro line 2 is studied,and detailed conditions of line 1 and the TBM characteristics are analyzed;thus,a suite of negative ring launching techniques of double-shield TBM based on tunneling mode,parameters,and attitude control is developed.The techniques include double-track small-spacing tunnel excavation realized by a movable support trolley installed in the advance tunnel and Soletanche grouting reinforcement and back-up trolley station-passing technology realized by precast steel support replacement.The application of the techniques shows a good effect in Qingdao metro line 1.

关 键 词：双护盾TBM 负环始发 小净距隧道 预制钢支腿 过站 

分 类 号：U45[建筑科学—桥梁与隧道工程]