钻孔桩坍孔后打捞冲击钻头特殊一例
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要
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钻孔桩施工中掉落钻头的事件会经常发生，但遇到的情况和处理方法不尽相同，通过对宁杭高速公路北河中河特大桥27-4#桩打捞冲击钻头的过程进行总结，介绍了一套简便易行的打捞方法。
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£pÍ^r Mbbs.3c3t.comh£2U]îz}关键词
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钻孔桩
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坍孔
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打捞
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冲击钻头
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