| 膨胀土地层钻孔灌注桩缩径原因及预防措施 |
| 投稿时间：2009-06-03 修订日期：2009-06-03 点此下载全文 |
| 引用本文：代万庆.膨胀土地层钻孔灌注桩缩径原因及预防措施[J].钻探工程,2009,36(11):50-51,75.代万庆. Cause of Hole Shrinkage of Bored-grouting Pile in Expansive Soil and the Prevention Measures[J]. Drilling Engineering, 2009,36(11):50-51,75. |
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| 中文摘要:在膨胀性粘土地层施工钻孔灌注桩，桩身一般会出现缩径情况。通过在膨胀性粘土中施工钻孔灌注桩的工程实践，分析了桩身缩径的成因，论述了“跳打法”的施工方案及施工效果，解决了由于粘土地层膨胀导致的钻孔灌注桩缩径的问题。 |
| 中文关键词:钻孔灌注桩 膨胀性粘土 缩径 “跳打法” |
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| Cause of Hole Shrinkage of Bored-grouting Pile in Expansive Soil and the Prevention Measures |
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| Abstract:Hole shrinkage often occurs while bored-grouting pile is constructed in expansive clay， the cause is analyzed with engineering practice， “interval construction” is discussed with the effect presenting， which solved the hole shrinkage problem. |
| keywords:bored-grouting pile expansive clay hole shrinkage “interval construction” |
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