摘要
依托北京地铁8 号线天桥站—永定门外站区间隧道工程,对砂卵石地层中盾构法施工的钢套筒接收技术开展了相关研究。首先,分析了该工程中盾构接收的难点;然后,对“钢套筒+玻璃纤维筋地连墙”接收方案进行了论述,主要包括钢套筒设计、钢套筒安装及接收准备、盾构接收施工以及洞门封堵注浆等施工环节的关键技术;最后,对钢套筒接收工法的优缺点及经济性进行了比较分析。工程实践表明,本工程中采用的施工控制技术有效确保了盾构接收施工的安全,缩短了施工工期,降低了施工成本。
Abstract
Based on the interval tunnel project from Tianqiao Station to Yongdingmenwai Station of Beijing Metro Line 8, a series of research about the steel sleeve receiving technology for shield tunneling in sandy cobble stratum were carried out. Firstly, the difficulties encountered in the shield receiving process were analyzed. Subsequently, the shield receiving scheme combining the steel sleeve with fiberglass reinforced concrete diaphragm wall was discussed, which mainly included the following key technologies such as steel sleeve design, steel sleeve installation, shield receiving preparation, shield receiving construction and construction of sealing grouting for cave doors. Finally, the advantages and disadvantages as well as the economical efficiency of the steel sleeve receiving construction method were compared and analyzed. The engineering practice shows that the construction control technologies adopted in this project could effectively ensure the safety of the shield receiving construction, shorten the construction period and reduce the construction cost.
关键词
砂卵石地层 /
隧道工程 /
盾构接收 /
钢套筒 /
掘进
Key words
sandy cobble stratum /
tunnel engineering /
shield receiving technology /
steel sleeve /
tunneling
李谷阳,孙梓栗,李晟,黄杉,徐前卫.
砂卵石地层盾构钢套筒接收施工技术研究[J]. 交通运输研究. 2019, 5(3): 72-78
LI Gu-yang, SUN Zi-li, LI Cheng, HUANG Shan and XU Qian-wei.
Construction Technology of Shield Steel Sleeve Receiving in Sandy Cobble Stratum[J]. Transport Research. 2019, 5(3): 72-78
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 廖少明,门燕青,赵国强,等. 盾构接收中钢套筒的受力变形特性与实测分析[J]. 岩土工程学报,2016,38(11):1948-1956.
[2] 周文波. 城市轨道交通施工新技术[J]. 中国市政工程,2013(2):85-90.
[3] HU X D. Laboratory Research on Properties of Frost Heave and Thaw Settlement of Cement-Improved Shanghai′s Grey- Yellow Silty Sand[J]. Journal of China Coal Society, 2009, 34(3): 334-339.
[4] 周晓华,何冬,杨平. 富水地层盾构端头加固方式与工艺研究[J]. 森林工程,2014,30(6):137-140,143.
[5] 赵树才. 复杂条件下暗挖法通道内盾构接收加固技术[J]. 铁道建筑技术,2016(z1):212-215.
[6] 赵亮,杨平,刘增光,等. 杯型水平冻结法端头加固与钢套筒辅助的盾构接收技术[J]. 城市轨道交通研究,2017,20(9):126-130.
[7] 肖衡,胡蓉,梁新权,等. 富水砂卵石地层土压平衡盾构钢套筒接收应用实例[J]. 隧道建设,2017,37(1):93-96.
[8] 任新伟,熊祥斌. 钢套筒盾构接收风险分析及应对措施[J]. 江苏建筑,2013(3):57-58.
[9] 张显宇. 砂卵石地层盾构施工方案研究[C]// 2014中国城市地下空间开发高峰论坛论文集. 北京:中国市政
工程协会,2014:225-227.
[10] 丁盛. 盾构钢套筒密闭接收施工技术研究[J]. 低温建筑技术,2018,40(3):158-160.
[11] 郭家驹. 已运营地铁车站盾构接收施工技术研究[J]. 建设科技,2014(23):102-103.
[12] 王健. 盾构到达钢套筒辅助接收系统的改进设计及施工[J]. 现代交通技术,2014,11(4):59-62.
[13] 胡爽子. 浅析盾构始发与接收钢套筒施工工艺[J]. 四川建材,2016,42(6):128-129,132.
[14] 陆鹏程. 钢套筒结构安全性分析及其在盾构接收中的工程应用[J]. 中国市政工程,2017(6):69-73.
[15] 陈锋. 富水地层有限空间盾构钢套筒接收技术[J]. 建筑建材装饰, 2018(1):67,72.