客运专线铁路隧道行车的舒适性、安全性及其工程措施探讨

研究目的:根据《中长期铁路网规划》,我国规划修建的客运专线铁路隧道将超过1 000 km,本文以“安全、优质、高效”地建设好客运专线铁路隧道为目标,着重研究、探讨了客运专线铁路隧道工程建设的有关技术措施。研究方法:以满足客运专线高速行车的舒适性和安全性为切入点,分析了客运专线铁路隧道的工程和结构特点,从缓解空气动力学效应,确保隧道结构的耐久性和大断面隧道施工安全等方面,阐述了客运专线铁路隧道具体的工程建设措施。研究结果:与常速铁路隧道相比,客运专线铁路隧道具有其显著的工程和结构特点,建设过程中,必需在借鉴以往工程经验的基础上,不断总结、完善,形成具有其技术特色的措施。研究结论:合理设置隧道断面和结构形式,加强隧道底部仰拱和填充混凝土结构,确保复合式衬砌隧道结构的耐久性和适应超大断面隧道的工程特点,坚持信息化施工原则等,是做好客运专线铁路隧道建设的技术关键。

Exploration on Traffic Comfortableness and Safety in Railway Tunnel of Passenger Dedicated Railway Line and Engineering Measures for Them

Research purposes: The total length of tunnel to be built on passenger dedicated line in China will exceed 1 000 km according to "Medium and Long-term Railway Net Plan".The research and exploration are made in this paper on the relevant technical measures for construction of railway tunnel of passenger dedicated line based on the goal of building tunnel of passenger dedicated line with safety,high quality and efficiency.Research methods:The analysis is made for the engineering and structural features of railway tunnel of passenger dedicated line from the cut-over points of meeting requirements for comfortableness and safety of high-speed train running in the tunnel of passenger dedicated line.The concrete measures for construction of railway tunnel of passenger dedicated line are presented in the areas of relaxing effect of aerodynamics,guaranteeing durability of tunnel structure and construction safety of big sectional tunnel.Research results:The tunnel of passenger dedicated line has obvious engineering and structural features compared with normal-speed railway tunnel.The engineering measure should be summed up and improved in construction,and formed into one with its own technical characteristics based on learning previous engineering experiences.Research conclusions:These are key technical points for better construction of railway tunnel of passenger dedicated line: to set up rational section and structural form of tunnel,reinfoce the inverted arch at bottom of tunnel and structural form of tunnel,reinforce the inverted arch at bottom of tunnel and concrete-filling structure,guarantee the structure durability of composite lining tunnel and make it suited to the engineering feature of big sectional tunnel,and persist in the principle of informationalized construction.