简要介绍在钻孔灌注桩施工中发生的断桩事故的原因和处理措施。

The origin and treatment of fracture accident of borehole grouting pile in the construction are interpreted briefly in this paper.

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在施工中，由于管理不善，造成部分基桩砼标号低于设计标号，并伴随有断桩等现象的工程质量事故。

But bad construction control results in some low concrete grade of foundation piles and some broken piles.

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