轨道交通接驳段工程下部结构改造方案

Reconstruction Scheme of Substructure of Subway Access Section

2号线东延伸接驳段工程是整个东延伸项目的关键节点,在不影响运营通车的条件下进行下部结构改造是该工程的一个难点。该文根据桥墩在线路上的具体位置不同,结合现行加固规范并考虑实际情况进行分别设计,制定各自独立的改造方案。其成果对于其他改造工程,尤其是轨道交通高架接驳段工程具有一定参考价值。

The access section of Line 2 East Extension is the key joint of the whole project.The reconstruction of substructure is a difficulty of this project under the normal traffic of subway.Based on the different positions of the piers in the line and according to the current reinforcement standards and the practical conditions,every specialty reconstruction scheme is designed.The result can be referred for the other reconstruction projects,especially for the elevated access section of subway.