应用Kirchhoff-Helmholtz积分方法对深度震相的合成  

Computing teleseismic depth phase with Kirchhoff-Helmholtz theory

作　　者：李伟华[1] 任静[2] 赵方[1] 

机构地区：[1]中国地震应急搜救中心,北京100049 [2]中国地震台网中心,北京100045

出　　处：《山西建筑》2015年第14期34-35,共2页Shanxi Architecture

摘　　要：将Kirchhoff-Helmholtz积分方法应用于合成震源发生在地表之下的深度震相的地震图计算中,计算多次反射震相时与反射率方法进行了比较,表明KH积分方法能很好的模拟反射波震相,精度较高,且KH积分方法能够计算复杂界面的反射波,其计算效率明显大于有限差分。The paper applies Kirchhoff-Helmhltz integral method in the calculation of the seismic map of the teleseismic depth phase when the seismic origin is under the ground, compares many reflection seismic phases and reflectivity methods, proves KH integral method has better sim- ulation of the reflection-wave phase with higher accuracy, so it can be used to calculate the reflection wave at complicated interface and its calcu- lation efficiency is higher than the finite difference.

关 键 词：合成地震图 KH方法 深度震相 

分 类 号：TU352[建筑科学—结构工程]