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盾构法施工过程中不可避免地对隧道周围的环境造成影响,尤其是地层沉降带来的影响尤为明显。针对南水北调东干渠4标在13+237.6~13+270.0位置盾构穿越机场高速公路高标准的沉降控制要求,结合施工地段的经验,对土压平衡盾构机穿越机场高速路进行盾构掘进参数设定,根据深孔监测数据对掘进姿态控制、同步注浆及二次补浆、管片拼装等综合施工技术进行了较系统的总结,可为同类工程施工提供借鉴。
The construction of the shield method inevitably affects the environment around the tunnel, especially the influence caused by the formation subsidence. In view of the high standard of settlement control requirements for the shield through the Airport Expressway at the location of 4 +4 D from the East Route of South-to-North Water Diversion Project at the distance of 13 + 237.6 ~ 13 + 270.0, combined with the experience of construction sites, the shield tunneling parameters Based on the deep hole monitoring data, a comprehensive summary of construction technology of heading control, synchronous grouting, secondary grouting and pipe segment assembling is provided, which can provide reference for the construction of similar projects.