【摘要】 本文对于计算P_nl波格林函数的广义地震射线方法进行了改进。包括:1.简化了地震射线的描述方法;2.将射线按其运动学相似性进行分组计算,从而较大地提高了计算速度;3.进一步推广用于计算SH波部分的响应。对于1983年山东菏泽地震和1985年云南禄劝地震,用综合地震图方法模拟了763型长周期地震仪的P_nl波记录,求出两个地震的断层面解答,其结果与有关研究所得该地区构造应力场的图象基本一致。更多还原

【Abstract】 In this paper some modifications to generalized ray theory are made for generating the Pnl Green’s functions. The major improvements are as follows: (1) The method to describe seismic rays are simplified: (2) The rays are grouped on the basis of the kinematical similarity, thus the computation speed is highly increased; (3) This technique is extended to calculate the response of the SH waves. For the Heze (Shandong, 1983) and Luquan (Yunnan, 1985) earthquakes, PJ waveforms recorded on the 763 long-period seismographs are modeled by the use of synthetic seismograms. The fault plane solutions yielded for these two earthquakes agree with patterns of the tectonic stress field.更多还原