青岛地铁1号线过海隧道工程双护盾隧道掘进机应用关键技术  

Key Technologies of Double-Shield TBM Applied to Qingdao Metro Line 1 Undersea Tunnel

作　　者：赵光泉 刘鹏 周强 程龙 张岩 王万仁 ZHAO Guangquan;LIU Peng;ZHOU Qiang;CHENG Long;ZHANG Yan;WANG Wanren(Qingdao Metro Line 1 Co.,Ltd.,266101,Qingdao,China)

机构地区：[1]青岛市地铁一号线有限公司,青岛266101 [2]中铁第六勘察设计院集团有限公司,天津300308 [3]中铁二十二局集团有限公司,北京100043

出　　处：《城市轨道交通研究》2021年第7期169-173,共5页Urban Mass Transit

摘　　要：青岛地铁在国内首次采用双护盾TBM(隧道掘进机)技术,实现了硬岩地层地铁区间隧道快速、安全、高效建设。结合青岛地铁1号线过海隧道TBM隧道段的施工实际,采用豆砾石、水泥浆、水泥-水玻璃双液浆复合灌浆材料及环箍分段注浆工艺成套技术,有效地解决了管片成型质量问题。根据近海区域穿越断层破碎带的施工风险,提出了地面精细化控制注浆、超前地质预报等综合技术,保障了施工安全。针对超深竖井垂直提升出渣效率低下的问题,创新性地研发了TBM洞内翻渣技术,其工效较常规方案提高1倍,为复杂条件下TBM高效施工提供了新的方案和思路,具有良好的推广价值。Qingdao Metro adopts double shield TBM(tunnel boring machine)technology for the first time domestically,to realize the rapid,safe and efficient construction of metro tunnels in hard rock stratum.Taking the construction practice of TBM tunnel section of undersea tunnel of Qingdao Metro Line 1 as background,a complete set of grouting technology is put forward,which adopts bean gravel,cement slurry,cement water glass double liquid slurry composite grouting material and ring hoop sectional grouting technology,effectively solving the quality problem of segment forming.In response to the construction risk of crossing fault fracture zone in offshore area,the comprehensive technologies such as ground fine control grouting and advanced geological prediction are proposed to ensure the safety of TBM crossing construction.Aiming at the problem of low slag removal efficiency in vertical lifting of ultra-deep shaft,the technology of turning slag in TBM tunnel is innovatively developed,which doubles working efficiency of conventional scheme,providing a new strategy and idea for efficient construction of TBM under complex conditions and has good promotion value.

关 键 词：隧道施工 双护盾隧道掘进机 断层破碎带 洞内翻渣技术 

分 类 号：U231.3[交通运输工程—道路与铁道工程] U455.31[建筑科学—桥梁与隧道工程]