摘要
焊齿破岩滚刀钻头适应多种地层钻进，本文主要介绍了焊齿破岩滚刀钻头的钻进工作原理、在桩基施工中的钻进技术参数、滚刀刀齿的修复及应用效果。
Welded teeth cut rock hobbing drill bits are applicable in the drilling of multi－types of strata. The paper primarily introduced drilling working principles of welded teeth cut rock hobbing drill bits and its drilling technical parameters in the piling construction, and repair of hobbing teeth and effect of application.
出处
《中国煤田地质》
2001年第2期78-79,共2页
Coal Geology of China
