富水砂层盾构施工刀盘脱困技术与应对策略  

Cutterhead Recovery Technology and Response Strategies in Shield Tunneling Through Water-rich Sand Layers

作　　者：冯文 FENG Wen(China Railway 11th Bureau Group City Rail Engineering Co,Ltd,Wuhan 430073,China)

机构地区：[1]中铁十一局集团城市轨道工程有限公司,武汉430073

出　　处：《建材世界》2025年第2期86-89,100,共5页The World of Building Materials

摘　　要：该研究聚焦武汉地铁某项目区间左线盾构施工过程中发生的螺旋机喷涌与刀盘困死事故,基于工程地质特性、设备配置及应急处置全过程,系统剖析刀盘困死的直接与间接成因,总结技术与管理层面的经验教训,并提出针对性改进措施。研究表明,地层高承压水与盾构设备选型不当是导致事故的核心因素,而应急处置过程中聚氨酯注入与地层固结进一步加剧了刀盘卡滞。基于此,提出了以优化设备选型、改进材料配比和完善应急流程为主线的系统性提升策略,以期为富水砂层盾构施工的风险管控提供有益借鉴。This study focuses on the spiral machine blowout and cutterhead entrapment accidents that occurred during the left-line shield tunneling operation of a certain section of the Wuhan Metro.Based on the engineering geological characteristics,equipment configuration,and emergency response process,the study systematically analyzes both the direct and indirect causes of cutterhead entrapment,summarizes the lessons learned from both technical and managerial aspects,and proposes targeted improvement measures.The research indicates that high-pressure groundwater and improper shield equipment selection were the core factors leading to the incident.Additionally,the injection of polyurethane and the consolidation of the formation during emergency response further exacerbated the cutterhead blockage.Based on these findings,a systematic improvement strategy is proposed,focusing on optimizing equipment selection,improving material ratios,and enhancing emergency procedures,with the aim of providing valuable insights for risk management in shield tunneling through water-rich sand layers.

关 键 词：富水砂层 盾构隧道 刀盘脱困 应对策略 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]