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尼泊尔某水电站深竖井施工,刚开始采用传统的反井钻机先导孔钻进施工方法,但由于本工程地质条件复杂,岩石坚硬且岩层倾角大,导致反井钻机施工失败。后经过研究,最终采用正井法和爬罐法完成施工。文章结合该工程案例,对复杂地质条件下深竖井施工不同的施工方法进行了总结,可为类似地质条件下深竖井的施工方法选择提供参考。
However, due to the complex geological conditions of the project, the rock is hard and the rock dip angle is large, which led to the failure of the anti-shaft drilling rig during the construction of a deep shaft in a hydropower station in Nepal. After the study, eventually using the positive method and climbing can finish construction. Combined with the project case, this paper summarizes the different construction methods for deep shaft construction under complex geological conditions, which can provide reference for the selection of construction methods for deep shaft under similar geological conditions.