高精度千米井筒泄水孔快速成孔技术

Fast weep hole forming technology of 1 000-meter shaft with high accuracy

结合工程实例,对高精度千米井筒泄水孔快速成孔技术进行了研究,介绍了钻孔设计措施,从钻探设备、钻探施工、泥浆选用等方面论述了钻孔施工的注意事项,达到了精确快速成孔,满足井筒施工泄水的要求。

Combining with engineering examples,the paper studies fast weep hole forming technology of 1 000-meter shaft with high accuracy,introduces drilling hole design measures,discusses drilling matters from aspects of drilling equipment,drilling construction and slurry selection,which meets demands of fast hole forming and shaft weep hole.