| 潜孔钻配合旋挖钻在山区高速公路施工中的应用 |
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| 引用本文： | 葛生深.潜孔钻配合旋挖钻在山区高速公路施工中的应用[J].交通标准化,2012(1):73-74. |
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| 作者姓名： | 葛生深 |
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| 作者单位： | 石家庄市公路桥梁建设集团,河北石家庄,050012 |
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| 摘 要： | 结合工程实例,介绍潜孔钻配合旋挖钻的工艺流程:使用潜孔钻先对桩位进行预钻孔,将孔底坚硬岩体分割为较破碎的岩体,并用入岩旋挖钻再进行钻孔,以提高钻孔的进尺速率和功效。
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| 关 键 词： | 潜孔钻 旋挖钻 岩体 预钻孔 |
Application of DTH Drill Coordinating with Auger Drill in Construction of Expressway in Mountain Area |
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| GE Sheng-shen.Application of DTH Drill Coordinating with Auger Drill in Construction of Expressway in Mountain Area[J].Communications Standardization,2012(1):73-74. |
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| Authors: | GE Sheng-shen |
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| Institution: | GE Sheng-shen(Shijiazhuang City Highway ＆ Bridge Construction Group,Shijiazhuang 050012,China) |
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| Abstract: | Combined with engineering practice,this paper introduces the technological process for using DTH drill coordinating with auger drill.First it uses DTH drill to bore prepared hole in the pile,so the hard rock at the bottom the hole are divided into broken rock.Then auger drill is used to bore the hole again,which can improve the footage speed and efficiency of drilling. |
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| Keywords: | DTH drill auger drill rock mass prepared hole |
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