OFR-54-78 A Demonstration Of An Alternate Approach To Kelly Bar Loading
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 58
- File Size:
- 15636 KB
- Publication Date:
- Jan 1, 1977
Abstract
A program has been conducted to determine the feasibility of providing a borehole liner for Kelly Bar drilled boreholes in Southern Florida. The concept was to drill the borehole with the Kelly Bar and with it still in the borehole insert a tube which would remain in the unstable ground after withdrawl of the bar. The tube then will provide an unobstructed borehole for the charging of explosives upon completion of the drilling the shot pattern.
Citation
APA: (1977) OFR-54-78 A Demonstration Of An Alternate Approach To Kelly Bar Loading
MLA: OFR-54-78 A Demonstration Of An Alternate Approach To Kelly Bar Loading. The National Institute for Occupational Safety and Health (NIOSH), 1977.