A calculating method for inversing body wave velocities and three-dimensional structure of interfaces by using reflected wave travel time is presented.A fast 3-D ray tracing algorithm by Chander and a damped least-squares technique are used to solve forward and inversion problems respectively.The result shows that the solutions of inversion are close quite to the true model.A 3-D Moho interface structure in Tangshan earthquake region is constructed using PmP reflected wave data.The faults of Moho interface in Tangshan area and its vicinity are relative to the Tangshan main earthquakes and a series of aftershocks in 1976.
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赖晓玲,郑需要,张先康.三维分块倾斜界面的反演及其应用[J].地震工程学报,1997,19(3):63-68. LAI Xiaoling, ZHENG Xuyao, ZHANG Xiankang. INVERSION AND APPLICATION OF THREE DIMENSIONAL DIP INTERFACE IN BLOCK[J]. China Earthquake Engineering Journal,1997,19(3):63-68.