泥水盾构饱和法带压开舱风险控制技术

摘要

Saturated hyperbaric intervention technology has the advantages of high efficiency and security, but it also has many risks. Based on the Nanjing Weisan Road river-crossing tunnel project, the technological process of saturated hyperbaric intervention is introduced in detail, and the risks concerning geology, unstable pressure on the tunnel face, physical effects and equipment failure are analyzed, with corresponding countermeasures given. The practices show that these risks in the process of saturated hyperbaric intervention are controllable and suitable solutions can be made according to various existing risks and engineering features.%饱和法开舱技术具有作业效率高、安全性好等优点，但也存在诸多风险。文章结合南京纬三路过江通道工程实例，对饱和法开舱技术流程进行了详细介绍，针对其存在的地质风险、开挖面保压不稳风险、饱和开舱对人体影响风险以及开舱设备故障风险进行了分析，并提出了应对处理措施。实际工程效果表明，饱和法带压开舱过程中的风险可控，应结合各方面风险因素并根据工程的特点制定合适的方案。