| 螺旋钻孔液力扩底注浆桩基础工艺 |
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| 引用本文：吴振仁.螺旋钻孔液力扩底注浆桩基础工艺[J].钻探工程,1995,(1):25-28.. Procedures of Auger Drilled and Hydraulic Underrreamed Grouted Pile[J]. Drilling Engineering, 1995,(1):25-28. |
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| 吴振仁 |
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| 中文摘要:针对螺旋扩底桩桩较疏散的砂土层和砂卵五层中存在的问题，研制并成功地采用了螺旋钻孔液力扩底注浆成桩工艺技术。着重介绍了钻机及扩孔工具的结构形式及技术经济效果。 |
| 中文关键词:螺旋钻孔，液力扩底注浆，扩孔工具 |
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| Procedures of Auger Drilled and Hydraulic Underrreamed Grouted Pile |
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| Abstract:considering problems existing in auger,underreamed piles in loose sand and boulder formation,auger drilled and hydraulic underreamed grouted piling technique is developed successfully applied,Description is fo-cused on structure of drill rig and underreamer,as well as technical economical benefit. |
| keywords:auger drilling ,hydraulic underreaming,grouting,underreamer |
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