市政管线隧道下穿既有桥梁关键技术研究

Critical technologies of municipal pipeline tunnel under-passing existing bridge

介绍了市政管线隧道建设的常用方法,从桥梁安全检测、结构分析、监控量测等方面,阐述了市政管线隧道下穿既有桥梁施工的关键技术,并总结了小导管注浆加固、隧道开挖与支护的注意事项,为同类工程施工积累了经验。

The paper introduces common municipal pipeline tunnel construction methods, describes critical technologies of municipal pipeline tunnel under-passing existing bridge from aspects of bridge safety detection, structural analysis and monitoring measurement, and summarizes duc-tile grouting reinforcement, tunnel excavation and support matters, which has accumulated experience for similar engineering construction.