用户名: 密码: 验证码:
Development of YSZ-50 Sonic Drilling Rig
详细信息   
摘要
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. 

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700