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仿古建筑施工中沉管灌注桩缩颈现象及处理

2016-03-31 17:26:55| 分类：默认分类 | 标签： |举报 |字号大中小订阅

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缩颈又称瓶颈桩。它的特点是在桩的某部分桩径缩小，截面尺寸不符合设计要求。

处理措施：对于施工中已经出现的轻度缩颈，可采用复插法，每次拔管高度以1m为宜。局部缩颈可采用半复打发，桩身多段缩颈宜采用复打发施工，或采用下部带喇叭口的套管。

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