深基坑锚固工程中成孔技术

Bore-making Technique in the Anchorage Project of Deep Foundation Pit

冲击螺旋钻孔是一种新的成孔工艺 ,在深基坑的锚固技术中成功地解决了软硬互层、夹杂地层的钻进。本文详细介绍了冲击螺旋钻的构造和成孔操作技术。

Impact Spiral Drilling is a new bore making technique. Its usage in the anchorage project of deep foundation ditch can solve the problem of drilling in the soft and hard cross stratum. In this article, the author specially introduces the structure of impact spiral drill machine and its operation techniques.