地震学报（英文版）2005，Vol.18Issue(3)：303-312,10.
Preliminary study on variation characteristics of ocean tide dynamic stress in crust and its relationship with earthquakes
Preliminary study on variation characteristics of ocean tide dynamic stress in crust and its relationship with earthquakes
摘要
Abstract
The variation characteristics of dynamic stress in crustal blocks and its relationship with earthquakes are comprehensively studied by analyzing geophysical data and calculating the dynamic response of crustal blocks in North China to the tide level change of Bohai Sea and Yellow Sea using a 3D nonlinear dynamic finite element simulation. This study has noticed some new features of crustal dynamic stress: (a) High stress level appears at the place where the stress waves superpose and interference during the process of propagation, and the enhancement of dynamic shear stress is more significant as compared with that of compressive stress; (b) Variation of dynamic stress has influence on seismogenic environment and hence earthquake occurrence; (c) As viewed from the variation characteristics of crustal dynamic stress, the superimposing process of shear stress manifests the preparation process of earthquakes.关键词
finite element simulation/tide/dynamic stress/earthquakeKey words
finite element simulation/tide/dynamic stress/earthquake分类
天文与地球科学引用本文复制引用
LU Ming-yong,ZHENG Wen-heng..Preliminary study on variation characteristics of ocean tide dynamic stress in crust and its relationship with earthquakes[J].地震学报（英文版）,2005,18(3):303-312,10.基金项目
National Natural Science Foundation of China (40174024). （40174024）
