有限元数值模拟方法在华北地区地震地质研究中的应用进展

ADVANCES IN APPLICATION OF FINITE ELEMENT NUMERICAL SIMULATION TO SEISMOGEOLOGY IN NORTH CHINA

文中综述了近30年来有限元数值模拟方法在华北地区地震地质研究中的应用和发展情况,从华北地区地震地质数值模拟的有限元模型、有限元数值模拟所采用的实测资料以及模拟结果3方面进行了讨论,综合分析了华北地区有限元数值模拟从弹性到弹塑性、黏弹性和蠕变性,从二维线性到三维非线性,从连续变形到非连续变形,从个别资料的应用到GPS网络观测资料拟合的发展过程。简单阐述了华北地区有限元数值模拟工作的意义、存在问题和发展趋势。

The paper summarizes the application and development of finite element numerical simulation methods in the seismo-geological study in North China in the last 30 years,and the discussion is focused on the following three aspects： the finite element model for North China,actual data used in the simulation and numerical simulation results. The study of finite element numerical simulation in North China began in 1980,since then,it has experienced the phases of development from elastic to elastoplastic, viscoelastic and creep simulations, from 2D to 3D, from linear to nonlinear, from continuous deformation to discontinuous deformation, and from the use of individual data to the use of multiple synthetic data. It shows that finite element numerical simulation is an effective means for studying seismology and geology in North China,and distinguished results have been achieved by using simulation methods. The achievement will be the foundation for the future simulation study in North China. The paper also discusses the significance, existing problems and development tendency of finite element numerical simulation in seismo-geology in North China.