900t运架一体机大坡度箱梁架设施工技术

Construction Technology of Large Slope Box Girder Erecting with 900 t Combined Machine for Transport and Erecting

随着铁路的快速发展,高速铁路逐渐由平原地带进入多山区,这就造成高速铁路的最大限制坡度增大。为了满足超过20‰以上的箱梁架设需要,通过对沪昆项目TTYJ900 t运架一体机进行改造并对施工方法进行改进,既保障了施工安全,又保证了施工进度,同时对以后同种工况施工有一定的借鉴作用。

With the rapid development of railway,the high-speed railway is constructed gradually from the plains into the mountains,which will enlarge the maximum limiting gradient of high-speed railway. In order to meet the needs of more than20‰ of the box girder erection,by improving the TTYJ900 t combined machine for transport and erecting used in ShanghaiKunming High-speed Railway and the construction method,it can ensure the construction safety and progress while simultaneously providing a certain reference for the construction of same operating conditions.