| 汕昆高速公路潮州段桥梁桩基孤石处理 |
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| 引用本文： | 包珍,林壮宏,刘吉福.汕昆高速公路潮州段桥梁桩基孤石处理[J].广东公路交通,2011(2):29-31,35. |
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| 作者姓名： | 包珍 林壮宏 刘吉福 |
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| 作者单位： | 广东省航盛建设集团有限公司,广州,511442 |
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| 摘 要： | 孤石区桥梁桩基础施工效率低、成本高。汕头-昆明高速公路潮州段对孤石区桥梁桩基采用逐桩钻探,通过优化设计减少桩数、缩短桩长,施工中综合采用浅层挖除、超前钻孔爆破、抛石纠偏、桩孔内钻孔爆破等方法,取得较好的效果。
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| 关 键 词： | 桩基 孤石 超前钻孔爆破 纠偏 |
Treatment Measures of Isolated Stones Encountered by Piles of Bridges of Chaozhou Segment of Shantou-Kunming Expressway |
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| BAO Zhen,LIN Zhuang-hong,LIU Ji-fu.Treatment Measures of Isolated Stones Encountered by Piles of Bridges of Chaozhou Segment of Shantou-Kunming Expressway[J].Guangdong Highway Communications,2011(2):29-31,35. |
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| Authors: | BAO Zhen LIN Zhuang-hong LIU Ji-fu |
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| Institution: | BAO Zhen,LIN Zhuang-hong,LIU Ji-fu(Guangdong Province Hangsheng Construction Group Co.Ltd.,Guangzhou 511442,China) |
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| Abstract: | Construction efficiency of piles of bridges where many isolated stones have been encountered is low and their cost is high.Each pile of bridges of Chaozhou segment of Shantou-Kunming Expressway which may encounter isolate stones was investigated by drilling.Some piles were decreased and shortened through design optimization.Comprehensive construction measures such as excavation of superficial isolate stones,drilling and blasting before construction of piles,declination correction through filling broken stones,drilling and blasting in the holes of piles were taken for the project.The above measures were proven effective and economical. |
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| Keywords: | isolated stone pile drilling and blasting before construction declination correction |
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