RI 7274 Eight-Piece Concrete Sets For Small Mine Openings: A Progress Report
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 40
- File Size:
- 9975 KB
- Publication Date:
- Jan 1, 1969
Abstract
To further investigate the potential of precast concrete sets as a support medium for underground mines, the Bureau of Mines designed an eight-piece precast reinforced concrete drift set for a small opening. Twenty-two sets of three different member sizes were tested to destruction under two loading conditions. A discussion of the test results and typical failure patterns is presented.
Citation
APA: (1969) RI 7274 Eight-Piece Concrete Sets For Small Mine Openings: A Progress Report
MLA: RI 7274 Eight-Piece Concrete Sets For Small Mine Openings: A Progress Report. The National Institute for Occupational Safety and Health (NIOSH), 1969.