以意大利西西里新铁路线隧道工程为研究背景,深入探讨了盾构机带压作业所需的人舱结构、配置和应用工况,以解决长距离、全断面岩石地层掘进中的带压进舱作业难题,满足盾构机在高压施工环境下的作业需求。根据带压进舱作业时人舱的功能需求,综合考虑了人体工程学、紧急逃生、环境监测系统等多方面因素,针对性地对人舱系统配置进行设计,为作业人员提供了设备上的安全保障。对所设计的人舱舱门和舱体进行了有限元受力分析,验证了人舱结构强度,满足工作压力要求,并通过水压试验和气密性试验验证了人舱结构的稳定性和可靠性。本文的有限元分析计算和承压试验结果证明了所设计的人舱不仅满足工程需求,而且为盾构机在隧道施工中的高效、安全作业提供了坚实的设备保障,确保施工效率与安全性的同步提升。
In the context of the grand construction of the new railway line tunnel project in Sicily, Italy, this article comprehensively and deeply analyzes the complex design and application of the man lock of tunnel boring machine in extreme pressure operating environments. Faced with the arduous task of long-distance crossing of full-section rock formations, especially the unique challenges brought by high-pressure water environments, this article creatively proposes a customized design scheme for the man lock system, aiming to completely solve the safety problem of pressurized entry operations. In response to the functional requirements of the man-lock during pressurized entry operations, and with due consideration given to ergonomics, emergency escape, environmental monitoring systems, etc., the man-lock system configuration was designed to provide equipment-related safety for workers. Finite element force analysis was carried out on the man-lock door and body to verify the structure's strength and ensure it meets working pressure requirements. The structure's stability and reliability were also confirmed through hydrostatic and air-tightness tests. The results of the finite element analysis and pressure tests show that the designed man-lock not only satisfies engineering needs, but also offers strong equipment support for the shield machine's efficient and safe tunneling, ensuring simultaneous enhancement of construction efficiency and safety.
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