The article introduces the overpass bridge engineering on Beizhong road on Xuan-Hang railway business line,describes the foundation and jacking construction technology on soft soil foundation for frame bridge,describes the existing line foundation and working pit monitoring and foundation pit dewatering method,and effectively complete the overpass bridge construction in the premise of guaranteeing safe business line.%介绍了宣杭铁路营业线环北中路立交桥工程概况,阐述了在软土地基处框架桥地基加固及顶进施工技术,并介绍了既有线路基及工作坑监测和基坑降水的方法,在确保营业线运营安全的情况下,优质高效地完成了立交桥施工。
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