A Simplex Method-based Algorithm for Source Location of Microseismic Events Associated With Underground Mining.
Proc 30th U S Symp on Rock Mechanics Morgantown West Virginia, 6-18/23-89 Balkema 1989 :655-662
In recent years, information obtained through the monitoring of microseismic events has gained acceptance in the mining industry as an indicator of potential rockburst conditions. One of the most important tasks in microseismic monitoring is the determination of the source location of microseismic events. It is with these spatial source location coordinates that zones of increasing rock stress may be delineated. This paper presents a fresh approach, based on the simplex method algorithm, for determining the source location of microseismic events. Presently the location algorithm being utilized by the U.S. Bureau of Mines is an iterative least squares method. A well-documented disadvantage of a least squares method is that the solutions may be weighted in favor of the most erroneous data. This paper compares the two procedures and demonstrates the advantage of the simplex method-based approach.
Proc. 30th U.S. Symp. on Rock Mechanics, Morgantown, West Virginia, 6-18/23-89. Balkema, 1989, PP. 655-662