广东地区现代构造应力场的模拟计算  

The simulation of the modern geotectonic stress field of Guangdong area

作　　者：闻则刚[1] 王正尚[1] 杨马陵[1] 

机构地区：[1]广东省地震局,广东广州510070

出　　处：《华南地震》2001年第3期29-36,共8页South China Journal of Seismology

摘　　要：运用已知的断裂边界条件、区内震源机制解、小震应力降和环境应力场等资料作为基本数据 ,建立地质模型和计算模型 ,用有限元方法模拟计算了华南地区的现代地壳构造应力场。初步得到了本区的外力作用方式、断裂活动情况、应力集中状况、区应力场分布状况 。In this paper, we set up geological model and calculating model, and calculated the geotectonic field of Guangdong area by finite element method based on the condition of fault border, the source mechanism, the stress drop of small earthquake and the environment stress field in this area. We got the pattern of external forces, the information about active fault, concentration and distribution of the stress field, and some facts for circling earthquake risk zone.

关 键 词：边界条件 构造应力场 有限元方法 地质模型 震源机制解 

分 类 号：P315.1[天文地球—地震学]