超大断面海底隧道穿越风化槽施工及方案研究

The research on construction scheme of crossing the deep weathering slot about super-large section submarine tunnel

以厦门翔安海底隧道A3标穿越风化槽处理方案为例,针对施工中存在的技术难题,从地质预报、帷幕注浆、开挖支护、监控量测等方面详细阐述了施工方案,并指出施工中应注意的问题,从而为类似工程积累施工经验。

Taking the treatment scheme＇of crossing the deep weathering slot about Xiang＇ an submarine tunnel A3 in Xiamen, the paper aiming at some technical problems in the construction, illustrates the constrcution scheme from the geological forecast, the curtain grouting, the excavation and support and monitoring measuremnt, and points out some precautions in the construction, so as to accumulate experience for similar projects.