1 前言 目前,建筑物基础普遍采用混凝土钻孔灌注桩 由于桩基是地下隐蔽工程,灌注水下混凝土桩往往会发生断桩事故 处理断桩通常有三种办法:是移位补桩 根据实测断桩资料来设计补桩的位置、根数、桩径及桩长,这种处理方法简单,可利用现场机械设备,但处理费用较高,且有时受桩间净距等因 1 Foreword At present, concrete foundations are generally used for cast-in-place bored piles. Because pile foundations are underground hidden structures, broken piles often occur when pouring underwater concrete piles. There are usually three ways to deal with broken piles: displacement piles are used to measure broken piles. The data is used to design the location, number of piles, pile diameters and pile lengths of the piles. This method is simple and can use on-site machinery and equipment, but the processing costs are high and are sometimes affected by the net distance between piles.