地铁盾构施工在快速路下方上跨南水北调干渠技术研究

TECHNICAL STUDY ON THE SUBWAY SHIELD CONSTRUCTION UNDER THE EXPRESSWAY TO PENETRATE THE SOUTH-TO-NORTH WATER DIVERSION MAIN DRAINAGE CANAL

以北京地铁17号线某区间地铁隧道在五环主路下方同时上穿南水北调干渠为背景,采用盾构施工方法,为减小施工影响,分析了施工地质条件与周边环境,应用多种施工手段,包括施工前模拟工况、施工时采用特殊构件和克泥效工法严格控制注浆加固。工程施工总结经验可为类似工程借鉴并提供新思路。

In the background of Wangjing West Station~Warrior Camp Station subway tunnel passing through the South-to-North Water Diversion Main Canal,shield construction method was adopted.In order to reduce the construction impact,the construction geological conditions were analyzed,and a variety of construction methods were applied,including the simulation of the working conditions before the construction,the use of special components during the construction,and strict control of the grouting and reinforcement by the mud effect method.The summarized experience of the project construction can be used as a reference for similar projects and provide new ideas.