用户名: 密码: 验证码:
The Problems and Solving Thoughts of Wire-Line Coring Drilling in Water Conservancy and Hydropower Exploration
详细信息   
摘要
Drilling is a direct and important method of gaining the underground information in the water resources and hydropower engineering exploration,and the quality of drilling is very important for the water resources engineering’s investment and safety.The wire-line coring drilling is a key technology in improving drilling quality,which is widely used in land resources,metallurgy and coal.But there are some problems in water pressure test,unsuitable specification of wire-line coring drilling tools and the flushing fluid limitation.By the analysis and study on the above problems,the solution was put forward and good effects were received.By the designed method of water pressure test with no-hoisting drill,the combination of water pressure test and wire-line coring drilling solved the technical difficulties in wire-line coring drilling to adapt water conservancy and hydropower exploration.

© 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