上跨电气化铁路顶推法架设小半径复合曲线钢箱梁技术

Small Radius Composite Curve Steel Box Girder Erection Technology by Jacking Method Overpassing Electrified Railway

本文以大连市东联路公铁立交桥跨长大电气化铁路架设钢箱梁施工为实例,详细的论述了该技术的特点、适用范围、工艺原理及关键技术的工艺流程、操作要点等内容。该技术针对性强,是一种在环境与条件受限制无法按常规吊装法架梁的一种技术,对既有线跨越施工有一定的指导意义。

This paper takes the construction of steel box girder for Dalian Donglian Road highway railway overpass across the Changda electrified railway as an example,discusses the characteristics,scope of application,process principle and process flow and operation points in detail.The technology is highly targeted and is a kind of technology that can not be framed by conventional lifting method when the environment and conditions are limited.It has certain guiding significance for the construction of existing lines.