铁路组合式工便梁连续加固线路顶进施工技术

Jacking Construction Technology for Continuous Strengthening of Railway Line with Combined Temporary Beam

随着我国国民经济及交通运输高速发展,各地政府规划道路与铁路交叉增多,既有铁路立交涵宽度、高度均不能满足地方政府发展需求,同时地方政府结合长远规划目标,要求下穿既有铁路孔径越来越大,需求的增加,在顶进大孔径框构桥施工时,加固既有铁路线路施工技术方面也越来越高。通过对既有铁路加固施工技术进行比选、研究、再创新,现场运用、实施等,总结出以组合式工便梁连续加固既有线路施工方法,在施工过程中体现出经济、安全、高效等特点,总结形成了省级工法及局科技进步奖,同时取得了良好的社会效益。

With the rapid development of China's national economy and transportation,the crossing between roads and railways is increasing,and the width and height of existing railway interchange can not meet the development needs of local governments.At the same time,local governments combined with long-term planning goals require that the diameter of existing railways be increasingly larger and the demand increase.When jacking a large-aperture frame bridge,the technology of strengthening existing railway lines is also increasing.Through comparison and selection,research,re-innovation of existing railway reinforcement construction technology,field application,implementation,etc.,the construction method for continuous reinforcement of existing lines with combined work beams is summarized,which reflects the economy,safety and efficiency in the construction process.The summary has formed the provincial construction law and bureau of science and technology progress award,and achieved good social benefits.