Development of YSZ-50 Sonic Drilling Rig

Abstract:

Sonic drilling technology is a newly developed drilling technique. High frequency vibration generated by the sonic head is mainly used to produce the resonance of the drilling string system and the liquefaction of soil layers, then fast drilling and geotechnical sampling of high quality are realized. The structure design, main technical parameters, the features and sampling test of the YSZ-50 sonic drilling rig are introduced in this paper.

Key words:sonic drilling technology; high frequency vibration; YSZ-50 sonic drilling rig; oscillator; geotechnical sampling