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本文介绍地铁某明挖隧道基坑采用钻孔灌注桩+多层水平钢支撑及大跨度钢筋混凝土支撑作支护体系,三重管高压摆喷桩作桩间止水,四箱体钢筋混凝土结构,以及全包密闭防水的施工过程及成功经验。
In this paper, the foundation pit of a clear-cut tunnel of the subway is bored with bored pile + multi-level horizontal steel support and long-span reinforced concrete support system. Three- And all-inclusive closed waterproof construction process and successful experience.