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以青海省乐都县高庙镇的隧道为例,介绍了在隧道开挖过程中具体的施工概况。三台阶开挖法作为一种快速简便的隧道施工新技术,已在我国隧道施工中得到越来越多的应用,它的工作机理和计算方法的研究还不够完善,通过对高庙隧道的施工详细描述了三台阶开挖法在软岩隧道中的应用、具体施工办法及优点。根据具体施工情况,阐述了施工的开挖方法、三台阶施工法的具体施工步骤、人工配置、测量控制、监控等方面情况。
Taking the tunnel in Gaomiao Town, Ledu County, Qinghai Province as an example, this paper introduces the general construction situation during tunneling. As a fast and easy new technology of tunnel construction, the three-step excavation method has been more and more applied in the construction of tunnel in our country. The research on its working mechanism and calculation method is still not perfect. Through the construction of the tunnel Described in detail the application of three excavation method in soft rock tunnel, the specific construction methods and advantages. According to the concrete construction situation, the excavation method of the construction, the concrete construction steps of the three steps construction method, the manual configuration, the measurement control and the monitoring are described.