盾构施工穿越破碎带风险管控研究

RESEARCH ON THE RISK CONTROL OF SHIELD TUNNELING THROUGH FRACTURED ZONES

盾构法施工具有施工速度快,噪音小等优势,在城市隧道施工中得到广泛运用。在盾构施工过程中难免会遇到破碎带、富水区等特殊地质,为隧道安全施工带来巨大挑战。为降低隧道在穿越破碎带时施工风险,提高施工安全性,文中以青岛地铁盾构施工穿越破碎带为背景,利用WBS-RBS耦合矩阵对风险源进行风险识别,对施工过程中重大风险问题给出相关风险控制措施,大大降低了隧道盾构施工过程中的施工风险,确保工程安全施工,对于类似工程具有一定指导意义。

The shield tunneling method features fast construction speed and low noise,which is widely used in ur⁃ban tunnel construction.During shield tunneling construction,it is inevitable to encounter special geological condi⁃tions such as fractured zones and water rich areas,which pose significant challenges to the safe construction of tun⁃nels.The project of Qingdao metro shield tunneling is taken as the case to reduce construction risks and improve construction safety astunnels pass through fractured zones.WBS-RBS coupling matrix is used to identify risk sourc⁃es,which greatly reduces construction risks during tunnel shield tunneling.The paper provides relevant risk control measures for major risk issues during the construction process,ensuring safe construction of the project,and has cer⁃tain guiding significance for similar projects.