Taking the foundation underpinning construction of GuangShen high speed electrified railway bridge for example, this paper introduces the foundation underpinning construction technology.

• 摘要以广深电气化高速铁路基础在不影响运营的情况下进行托换施工为例，介绍高速铁路桥梁动荷载作用下的基础托换施工技术。