摘要
随着计算机技术的飞速发展和地震台网的建设对大城市的地震动数值模拟变成可能。应用地质,地貌以及地球物理勘探等资料建立的三维层结构是保证地震动计算准确性的基础。提出并论证了关于三维层分布模型的建模思路和相关数据处理方法。据此所建立的三维模型符合研究目标区的实际情况,同时,所提供的方法还便于模型的修改和升级。
The 3D velocity structural model built by using geomorphic and geologic exploration data is important for evaluating strong ground motion. This paper presents a method study on modeling velocity structures. Modeling codes and developed tools based on multi-function software was used to analyze the mass data and information. The B-spline function is proposed to produce the given data points in order to optimize the model. The proposed model is suitable for 3D finite difference simulation for evaluating near-fault strong ground motions from future earthquakes. Compared to other methods, the model is easier to be modified and adjusted, and it is also very significant in the relative fields of earthquake damage mitigation.
出处
《华南地震》
2009年第1期1-7,共7页
South China Journal of Seismology
基金
国家自然科学基金(40674016)
国家地震行业基金([2007]203/8-53)资助
关键词
地下速度结构模型
数据可信度
样条函数
数值计算
Velocity structural model
Data reliability
Spline function
Numerical simulation
