娄江特大桥深孔泵吸反循环工艺的改进 |
投稿时间:2010-11-23 修订日期:2011-06-10 点此下载全文 |
引用本文:张广亮,刘建涛,陈益敏.娄江特大桥深孔泵吸反循环工艺的改进[J].钻探工程,2011,38(6):47-50.ZHANG Guang-liang,LIU Jian-tao,CHEN Yi-min. Improvement on Deep Hole Pump-suction Reverse Circulation Technology in Super Large Bridge[J]. Drilling Engineering, 2011,38(6):47-50. |
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中文摘要:随着国家基础设施投入的加大,桩径1000~2000 mm、孔深100~130 m的钻孔灌注桩在各类工程中屡被采用。泵吸反循环传统上被用于孔深不超过80 m的深孔,在京沪高铁第六标段娄江特大桥钻孔灌注桩施工中,通过对现有的反循环钻机进行改进,很大程度上提高了泵吸反循环的工作效率,顺利地完成了孔深131 m、桩径18 m桩孔的施工,产生了很好的经济效益。 |
中文关键词:泵吸反循环 大直径 超深孔 灌注桩 钻机改进 |
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Improvement on Deep Hole Pump-suction Reverse Circulation Technology in Super Large Bridge |
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Abstract:The bored-grouting pile with diameter of 1000~2000 mm and depth of 100~130 m are often used in various projects. Pump-suction reverse circulation was traditionally used in the hole not more than 80 m deep, but by the improvement on the existing reverse circulation drill, the efficiency of pump-suction reverse circulation was greatly improved with pile hole of 18 m in diameter and 131 m in depth finished. |
keywords:pump-suction reverse circulation large diameter ultra-deep hole grouting pile drilling rig improvement |
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