Technique for Auger-percussive-rotary Drilling and Its Application in Side Slope Control

Abstract:

Based on the construction practice and the theoretical analysis, the technique for auger-percussive-rotary drilling is defined. It is a new drilling method and is used generally in the anchor engineering of soil and rock. At last, the unresolved questions are suggested.

Key words:side slope improving; anchor engineering; auger boring; percussive-rotary drilling; auger-percussive-rotary drilling