湘黔线大跨度地道桥顶进施工线路加固技术

Construction with Jacking-in Method and Technology of Roadway Stabilization of the Bridge at Xiangqian Railway

湘黔线K2 2 +540地道桥为一座 ( 6+9+6)m三联孔框架式结构 ,横向宽度达 2 4m ,穿过湘黔上、下行线 ,线路加固难度大。重点介绍了框架在埋深较浅和较深条件下的线路加固方法以及钢刃脚的特别设计。

It is a three span (6+9+6) m framed structure through the roadway at K22+540 of the west ward line of Xiangqian railway. There is some difficulty in the stabilization of the roadway. The methods of stabilization of the roadway in case of different buried depths and the special design of the steel knife edges are presented.