Early Warning System of Impending Rock Failure for Safety in Mines and Excavations.
Podio-AL; Yang-JH; Gray-KE; Collins-RJ
NTIS: PB/243-376 Available for Reference At Bureau Libraries :102 pages
The report provides the results of studies using large-amplitude, high-frequency seismic reflection signals as a means of determining the existence and location of discontinuities and possible failure planes in roof rock. The present state-of-the-art is fully discussed, including the equipment available and present data analysis methods.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/243-376 Available for Reference At Bureau Libraries
University of Texas