海底隧道机械化配套施工及围岩稳定监测研究  

Mechanized matching construction and enclosed rock stability monitoring technology of subsea tunnel

作　　者：郭永建 代镇洋 Guo Yongjian;Dai Zhenyang(Qingdao Conson Second Jiaozhou Bay Subsea Tunnel Co.,Ltd.,Qingdao 266031,Shandong,China)

机构地区：[1]青岛国信胶州湾第二海底隧道有限公司,山东青岛266031

出　　处：《岩土工程技术》2025年第2期200-206,共7页Geotechnical Engineering Technique

基　　金：国家重点研发计划(2021YFB2600800)。

摘　　要：为提高施工效率,保障施工安全,海底隧道施工逐渐由传统隧道施工方法转化为采用大型机械化配套施工。为全面推广应用机械化配套施工工法,依托胶州湾第二海底隧道工程双向六车道主线隧道,从设备选型、施工空间规划到隧道安全性评价等方面,对超长海底隧道机械化配套施工试验段进行全方面分析。其中北线隧道Ⅲ级围岩采用全断面施工,南线隧道Ⅲ级围岩和所有Ⅳ级围岩稳定地段采用台阶法施工。现场监测结果表明,机械化配套施工段现场初支变形均小于16 mm,围岩和初支结构均处于稳定状态,建议在工程全线推广应用。To improve the construction efficiency and safety of the ultra-long subsea tunnel,there has been a gradual shift from traditional tunneling methods towards adopting large-scale mechanized integrated construction techniques.To promote the application of mechanized supporting construction methods,relying on the two-way six-lane mainline tunnel of the Jiaozhou Bay second subsea tunnel,a comprehensive analysis of the mechanized supporting construction test section of the ultra-long subsea tunnel was conducted from the aspects of equipment selection,reasonable construction space planning,and tunnel safety evaluation.The full-section con-struction was adopted in the north tunnelⅢ-level surrounding rock,and the bench method was adopted in theⅢ-level surrounding rock in the south tunnel and allⅣ-level safety surrounding rock.The field monitoring measurement results show that the primary sup-port deformation with the mechanized construction is less than 16 mm,and the surrounding rock and the primary support structure are stable.It is suggested to promote the application on the whole project.

关 键 词：海底隧道 机械化配套施工 监控量测 全断面施工 台阶法施工 

分 类 号：U45[建筑科学—桥梁与隧道工程]