Propagation characteristics of ground vibrations produced by rock motions
In this paper, characteristics of ground vibrations caused by rock motions in the channel beds were examined both experimentally and theoretically. The ground vibration was detected by three geophones installed in a straight line at the surface of the channel bed. The signals were discussed in terms of the frequency range, the phase speed and the spatial decay rate. The sphere-packing model of granular rocks proposed by Duffy & Mindlin (1957) was also used to estimate the theoretical phase speed of the ground vibration and compared with the experimental data. Our results showed that the sphere-packing model of granular rocks provides a rather reasonable estimation of propagation speed of the ground vibration.
rock motions ground vibration geophones propagation speed
C.Y. Chen C.J. Huang H.Y. Yin
Department of Hydraulic and Ocean Engineering, National Cheng Kung University, Tainan, Chinese Taipe Monitoring and Management Division, Soil and Water Conservation Bureau, Council of Agriculture,Nanto
国际会议
成都
英文
561-570
2007-05-17（万方平台首次上网日期，不代表论文的发表时间）