Velocity-based Method for Slope Failure Detection.
NTIS: PB 262 739 :19 pages
This report presents the concept, design, and testing of a sonic velocity monitoring system for the early detection of slope failure in open pit mines. The heart of the system is a device for producing reproducible sonic signals in rock. Because changes in the velocity of sound through rock near the top of the pit wall are a measure of extent and rate of fracturing of the rock, velocity histories obtained from periodic, automatic sonic velocity surveys provide positive information about developing slope instability.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 262 739