According to the engineering practice,the article points out the method of using steel concrete immersion base for out-wall which is used to deal pile-breakage, then pouring out concrete.

• 结合钻孔灌注桩由于埋管引起的断桩事故的工程实际,提出了一种采用钢筋混凝土沉井基础作为外壁再进行灌注混凝土的断桩处理方法,承载力经验算满足设计要求。