| 岩溶地区人工挖孔改冲击钻成孔的应用技术 |
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| 引用本文： | 刘湘源,;严林征.岩溶地区人工挖孔改冲击钻成孔的应用技术[J].水运科技信息,2014(5):68-70. |
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| 作者姓名： | 刘湘源 ;严林征 |
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| 作者单位： | [1]湖南省郴州公路桥梁建设有限责任公司,郴州423000; [2]中交第二航务工程局第五工程公司,武汉430040 |
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| 摘 要： | 以汝郴高速公路赤石特大桥主8号墩桩基施工为例，阐述了在岩溶发育地区的桥梁桩基施工中，人工挖孔不能满足正常施工需求时，改为机械冲孔施工的应用技术及施工效果。
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| 关 键 词： | 岩溶地区 人工挖孔 冲击钻成孔 应用技术 |
Application Technology of Transformation of Manual Hole Digging to Percussion Drilling Hole in Karst Area |
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| Institution: | Liu Xiangyuan, Yan Linzheng (1. Hunan Province, Chenzhou road and Bridge Construction Co. , Ltd. , Chenzhou 423000, China; 2. CCCC Second Harbor Engineering Company of the Fifth Engineering, Wuhan 430040, China) |
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| Abstract: | In this paper,taking the 8# main pier foundation construction of Akaishi Bridge in Ruchen expressway as an example,the construction of bridge pile foundation in karst area is described.Be-cause manual hole digging can not meet the normal demand for construction,the technology of me-chanical punching construction has achieved very good results,and provides a safe and reliable method of construction.It can also provide remarkable benefit for the similar geological conditions. |
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| Keywords: | karst area manual hole digging percussion drilling hole application technology |
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