桩基工程中使用冲(钻)孔钻机的回顾 推荐使用CJF-12型冲击反循环钻机的建议

Introduction To A New Type CJF-12 Percussive Drilling Machine of Reverse Circular Technique.

本文回顾了冲 (钻 )孔桩钻机在福州的使用 ,着重指出传统钻机在施工中存在的问题 ,如岩面鉴定和排渣清淤等 ;介绍了新型CJF - 1 2型钻机的工作原理 ,以及所具有岩面鉴定正确、高效、同步清淤等优点 ,克服了传统钻机存在的问题 ,值得推广应用。

the paper reviews the usage of the traditional percussive drilling machine in Fuzhou area,points out the problems often occurred in the construction,such as appraisal of new type,CJF-12 drilling machine and its advantages of more correct appraisal of rock surface and more effective synchronal cleanup of slush prefer to traditional drilling machine therefore,the new machine is worth to the used more widely.