SH型トルクによる多層構造地盤の震動特性について(2)

Abstract

Integrals for displacement field near SH torque source are exactly calculated by digitalcomputer for the branch line integrals and the residues, when an elastic isotropic solid half spacess composed of homogeneous layers with parallel boundaries. The numerical results are com-pared with spectra in the case where an infinite train of harmonic plane waves is vertically trans-nutted to the surface layers, and with experimental values obtained by vibrating machine. Itss clarified from these results that when the observing points in the vibration test are in the basis, the characteristic frequency of ground in earthquakes can be inferred.