| 无循环旋挖法施工卵砾石层钻孔桩 |
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| 引用本文： | 赵晓炯,李小青.无循环旋挖法施工卵砾石层钻孔桩[J].探矿工程(岩土钻掘工程),1997(1):25-27. |
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| 作者姓名： | 赵晓炯 李小青 |
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| 作者单位： | 湖北华龙特种基石出工程有限公司!武汉，430030(赵晓炯)，中国地质大学!武汉，430074(李小青) |
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| 摘 要： | 通过工程实例，阐述了无循环旋挖法的施工设备、机具、工艺及技术特点。在卵砾石层中施工大口径钻孔桩，该工法充分显示出成孔效率高、质量好、环境污染小等技术优势，是国内桩基工程施工技术的新发展。
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| 关 键 词： | 无循环旋挖工法 R型钻机 钻头 卵砾石层 |
Dry Auger Bored Piles in Bouldery Formation |
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| Zhao Xiaojiong.Dry Auger Bored Piles in Bouldery Formation[J].Exploration Engineering:Rock & Soil Drilling and Tunneling,1997(1):25-27. |
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| Authors: | Zhao Xiaojiong |
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| Affiliation: | Zhao Xiaojiong(Hualong Special Foundation Engineering Company Ltd. of Hubei Wuhan 430030)Li Xiaoping(China University of Geosciences Wuhan 430074) |
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| Abstract: | The equipment, drilling tools, drilling process and technical features of the dry auger boring method are described with reference to the field cases. When used to install large diameter bored piles in bouldery formation, the method exhibits fully such technical advantage as high hole completion efficiency, good quality, little environmental pollution and is an advance of the domestic pile foundation drilling technology. |
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| Keywords: | dry auger boring method R type drill rig drill bit bouldery formation |
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