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Continuous Recorder to Monitor Mine Roof Displacement
This report describes an instrument system developed by the Bureau of Mines to continuously monitor and record changes in roof displacement during underground mining activity. The instrument consists of a single wire extensometer coupled to a mechanical drive chart recorder mounted in an aluminum frame installed in the roof. The unit is small and simple to install and meets safety requirements for use in underground coal mines.
Continuous Recorder to Monitor Mine Roof Displacement
This report describes an instrument system developed by the Bureau of Mines to continuously monitor and record changes in roof displacement during underground mining activity. The instrument consists of a single wire extensometer coupled to a mechanical drive chart recorder mounted in an aluminum frame installed in the roof. The unit is small and simple to install and meets safety requirements for use in underground coal mines.
Continuous Recorder to Monitor Mine Roof Displacement
D. E. Radcliffe (author) / J. R. FitzSimmons (author)
1977
17 pages
Report
No indication
English
Continuous recorder to monitor mine roof displacement
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