SH25H型液压风动冲击钻机在大口径硬岩钻孔灌注桩施工中的试验研究
投稿时间:2010-03-08  修订日期:2010-06-24  点此下载全文
引用本文:何龙飞,林坚,孙亚军,等.SH25H型液压风动冲击钻机在大口径硬岩钻孔灌注桩施工中的试验研究[J].钻探工程,2010,37(8):41-43,46.
HE Long-fei,LIN Jian,SUN Ya-jun,et al. Experimental Study on SH25H Hydraulic and Pneumatic Impact Drill in Large Diameter Bored-grouting Pile Construction in Hard Rock[J]. Drilling Engineering, 2010,37(8):41-43,46.
摘要点击次数: 1151
全文下载次数: 1121
作者单位E-mail
何龙飞* 上海金泰工程机械有限公司 158131880@qq.com 
林坚 上海金泰工程机械有限公司  
孙亚军 上海金泰工程机械有限公司  
王宇清 上海金泰工程机械有限公司  
中文摘要:根据京沪高速铁路徐州东站大口径嵌岩灌注桩工程,试制SH25H型液压风动冲击钻机﹑采用气动潜孔锤空气正循环组合钻进工艺,结合捞砂桶排渣,摸索总结出一套针对硬岩地层的干式成孔新方法,钻进效率及钻孔质量显著提高,为大直径成孔施工增添了一种新的方法。
中文关键词:大口径  嵌岩灌注桩  捞砂桶;液压风动冲击钻机
 
Experimental Study on SH25H Hydraulic and Pneumatic Impact Drill in Large Diameter Bored-grouting Pile Construction in Hard Rock
Abstract:By the large diameter rock socket bored grouting pile project in the construction of Beijing-Shanghai high speed railway, the SH25H hydraulic pneumatic impact drill was trial manufactured with the pneumatic DTH and positive circulation rotary drilling technology, and chip removal was carried by bailing bucket. A new method for dry borehole drilling was explored and summarized with high drilling efficiency and high quality of borehole.
keywords:large diameter  rock-socket bored-grouting pile  bailing bucket  hydraulic and pneumatic impact drill
查看全文  查看/发表评论  下载PDF阅读器