Introduction of YGL-S100 Sonic Drill and the Sampling Practice in Deep Overburden Layer
Delong Wang, Hydrochina Zhongnan · Exploration Engineering(Rock & Soil Drilling and Tunneling) · 2013
To verify the sampling effects of YGL-S100 sonic drill in complex strata,the drilling experiment was carried out on the deep overburden layer where Xiangjiaba hydropower station is located.The paper expounds the technical characteristics of YGL-S100 sonic drill,various parameters and the construction technology in the drilling process.