| 分段微差爆破技术在桥梁人工挖孔桩中的应用 |
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| 引用本文： | 黄卓新,向维峰,潘浩,李驰.分段微差爆破技术在桥梁人工挖孔桩中的应用[J].中南公路工程,2012(2):112-114,127. |
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| 作者姓名： | 黄卓新 向维峰 潘浩 李驰 |
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| 作者单位： | [1]湖南路桥建设集团公司,湖南长沙410014 [2]湖南省吉茶高速公路建设开发有限公司,湖南吉首416000 |
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| 摘 要： | 桥梁灌注桩基础成孔方法一般采用人工挖孔和机械挖孔两种,在某些复杂特殊地质条件下的人工挖孔桩施工中,采用微差爆破技术具有独特优势,尤其适应缺水、缺黄粘土以及地势陡峭设备无法调运地区。本文结合吉茶高速公路团结3号桥桩基人工挖孔实践,详细阐述了浅孔分段微差爆破技术在桥梁桩基人工挖孔施工中的应用,该成果可供具有类似地质条件下的桩基施工参考。
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| 关 键 词： | 微差爆破 人工挖孔桩 桥梁桩基 吉茶高速公路 |
Application of Manual Hole Digging Pile Millisecond Blasting Technique on Bridge Pile Foundation |
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| HUANG Zhuoxin,XIANG Weifeng,PAN Hao,LI Chi.Application of Manual Hole Digging Pile Millisecond Blasting Technique on Bridge Pile Foundation[J].Central South Highway Engineering,2012(2):112-114,127. |
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| Authors: | HUANG Zhuoxin XIANG Weifeng PAN Hao LI Chi |
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| Institution: | 1.Hunan Road ＆ Bridge construction group CORP.Changsha,Hunan,410014,China;2.Hunan Provincial Jicha Expressway Construction and Development Co.Ltd,Jishou,Hunan 416000,China) |
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| Abstract: | The manual digging filling pile and machine drilling one are usually used as the bridge pile foundation.In the mountain area,the millisecond blasting technology has unique advantages under the complicated geological conditions,especially in the water shortage and lake of yellow clay condition.Combined with Ji-cha highway engineering practice,the millisecond blasting technology in the construction of manual hole digging pile is introduced in this paper.The construction experience can be served as a reference to similar projects. |
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| Keywords: | millisecond blasting manual hole digging pile bridge pile foundation Ji-cha highway |
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