粘土隧道三台阶七步开挖机械作业施工

Seven-steps-parallel-line excavation machinery works construction in clay tunnel

就粘土地质隧道应用三台阶七步流水施工工艺和施工过程中的安全、质量控制要点进行了介绍,并总结了机械开挖工艺及安全距离控制以及突发事件的预防措施,以期为类似的隧道施工提供指导。

This paper introduces the safe and quality control points in the construction process with seven-steps-parallel-line excavation method in clay tunnel, and summarizes machinery excavation techniques and safe distance and preventive measures for emergencies as well, with a view to provide guidance for similar tunnel construction.