浅谈复杂管线条件下市政道路桥梁施工技术

Briefly Discussion on Construction Technology of Municipal Road and Bridge under Complicated Pipeline Conditions

城市市政道路改拓建工程中往往会涉及较多的地下管线,由于各大管线权属单位不同,且一般埋设时间较为久远,管线位置及走向往往很难确定。业主及各大权属单位提供的管线图纸只能作为项目施工的参考,给道路及桥梁下部结构施工造成很大影响。通过实际项目案例介绍了市政道路管线精准定位及保护的几种方法,成功解决了管线距离桥梁桩基础距离近、道路下方管线埋深浅等问题,为后期类似工程施工提供参考。

The reconstruction and extension projects of urban municipal road often involve many underground pipelines.Dou to the different ownership units of large pipelines and generally longer laying time,it is hard to determine the positions and directions of pipelines.The pipeline drawings provided by the owners and ownership units can be only used as the reference for the construction of projects,which will cause the great influence on the substructure construction of road and bridge.Through a practical engineering case,several methods of precisely positioning and protecting the municipal road pipelines are introduced successfully to solve the problems that the distance from the pipeline to bridge pile foundation is close and the laying depth of pipeline below road is shallow,which can provide the reference for the construction of the similar projects.