大断面连拱隧道三导坑法施工风险分析及控制

The Three Heading Construction Method Risk Analysis and Control in Large Cross-section Arch Tunnel

本文针对连拱隧道三导坑法的施工风险,从风险分析、风险辨识和风险控制三个方面进行了探讨,对类似隧道施工具有参考价值。

In the process of continuous-arch tunnel construction ,adjacent tunneling will affects each oth‐er ,by adjusting the construction procedure ,it can reduce the interaction between the adjacent tunnel or pilot . Meanwhile ,construction procedure should consider the convenience of the auxiliary construction measures . Therefore ,it should analyze the construction procedure comprehensively ,selecting the optimum construction procedure .This paper investigates the three heading construction method from risk analysis risk identification and risk control ,providing reference for similar tunnel construction .