With the rapid development of urban transportation construction,the intersection of new and existing lines is inevitable.The hoisting of box girders has become an important critical node when crossing and crossing existing lines.Reasonable arrangement of box girder hoisting can ensure the safe and efficient progress of the project.Taking a renovation project in Beijing as an example,this study analyzed the technical difficulties of the project and summarized the lifting of box girders under the newly-built overpass ramp crossing Changping Line.The research results can provide engineering experience for similar projects.
关键词
箱梁吊装/下穿既有高架/既有线路快速化改造
Key words
box girder hoisting/underpass existing elevated/rapid transformation of existing lines
维普
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