三一旋挖钻机工法讲座(12)——旋挖钻机施工的斜孔探因与工法分析  

Working methods analysis and explanation the reasons for the slant-hole in rotary drilling construction

作　　者：陈亚贞 荆留杰 周召槿 

机构地区：[1]三一工法研究院,北京102206

出　　处：《建筑机械》2011年第12期50-51,共2页Construction Machinery

摘　　要：斜孔不但给工程的质量造成恶劣影响,而且也给施工方造成巨大的经济损失和心理影响,尤其在其扫孔纠偏的过程更可能会造成很大的次生事故.包括严重超方、塌孔埋钻.以致对施工钻机造成钻杆键条断裂.动力头漏油、磨损等设备故障。如何有效地防止出现桩孔偏斜事故是旋挖钻机施工过程中的一项重要工作。Slant-hole affects not only the projects quality, but also the construction economic loss and psychological effects.Especially in the process of sweeping holes and correction, it is more likely to cause great secondary accidents, including but not limited to severe over square,buried drill hole collapse, resulting in the drillrig key broken, power head spilling oil, abrasion and so on. How to effectively prevent pile deflection is one important work during rotary drilling rig construction.

关 键 词：三一工法 旋挖钻机 斜孔 

分 类 号：TU753[建筑科学—建筑技术科学]