饱和带压开舱技术相关设备及操作研究

Study of Equipment and Operations Related to Saturated Hyperbaric Intervention Technology

盾构隧道穿越复杂地层时不可避免地会遭遇被迫停机、开舱检修等问题,工程中常采用带压开舱方法对盾构刀盘及刀具进行检修。相对于常规压缩空气开舱方法,饱和带压开舱方法大大缩减了工期,并降低了发生加减压病症的风险。文章依托南京纬三路过江通道工程实例,对饱和带压开舱设备工作原理及运输对接设备进行了系统化研究,总结出了生活舱、穿梭舱等关键设备的核心组成及操作要点,以期对国内类似工程开舱作业提供借鉴和参考。

Some problems, such as forced shutdown and intervention for maintenance, are inevitably encountered when a shield tunnel passes through a complex stratum. The hyperbaric intervention method is often used to overhaul the cutterhead and cutters during construction. Compared to conventional intervention characterized by compressed air, the saturated hyperbaric intervention method largely shortens the construction period and reduces the risk of pressurized and depressurized conditions. Based on the Nanjing Weisan Road river-crossing tunnel, the operating principles of saturated hyperbaric intervention equipment, transportation and connecting equipment are systematically studied in this paper. The core components and operation essentials of key equipment, such as the living habitat and shuttle chamber, are summarized, and this summary can be a reference for intervention operations in similar projects.