对灌注桩断桩缺陷的形成原因进行了分析，同时对原位复桩、接桩、高压注浆补强法、扁担桩等灌注桩的断桩处理方法进行了介绍，并总结了其预防措施，以减少灌注桩断桩现象的发生。%The paper analyzes the reasons for broken pile defects of bored pile,introduces its treatment methods for primary pile,pile extension, the high-pressure grouting reinforcement methods and shoulder pole pile,and sums up some prevention measures,so as to reduce the broken piles for the bored piles.
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