CODA WAVE INTERFEROMETRY IN MINES
The suitability of the coda wave interferometry technique for seismogram data recorded routinely in mines is examined. Synthetic data is used to show that for typical mine scales, the presence of tunnels and excavations is enough to cause a long coda, and that analysis of these codas can reveal small changes in seismic wave velocities. The technique is then applied to recorded seismic data from a mining-induced doublet and from a pair of development end blasts. Velocity variations as small as 0.06％ were detected using coda wave interferometry. Changes in the source location are also estimated from the subtle differences of the codas.
RICHARD-A LYNCH
ISS International Limited, P O Box 12063 Stellenbosch, 7613, Republic of South Africa
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
1127-1134
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）