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洞室暗挖技术在大型水利工程、市政工程、铁路工程等都有广泛应用,常用的方法有喷锚暗挖法、盾构法、新奥法等,但对于大型水库的不良土质灌溉洞应用暗挖技术较少,大多以明挖的型式设计,工程是以出山店水库施工1标的北灌溉洞这一非常见暗挖设计为背景,介绍不良土质暗挖支护技术,以期为今后类似设计的施工提供借鉴和参考。
Tunnel excavation technology has been widely used in large-scale water conservancy projects, municipal engineering, railway engineering and so on. Commonly used methods are shotcrete and anchor excavation method, shield method and new Austrian law. However, for the application of poor soil irrigation holes in large reservoirs, Excavation technology is less, most of them are of the type of open cut. The project is based on the unusual shoal design of the northern irrigation hole of the Izushidai reservoir construction. It introduces the unscientific soil undercutting support technology for future similar design The construction provides reference and reference.