SIMULATION OF THE SEISMIC TECTONIC STRESS FIELD IN NORTH CHINA

The paper reviews several methods of simulation used in this country to recover currenttectonic stress field related to earthquake occurrence in North China. The aim is to evaluatethe degree of seismic risk around Beijing area. The methods used are computational ormathematical simulation by the finite element method and experimental or physical simulationby the photoelastic method and the grid method. The results obtained by these methods arebriefly described. Most simulations indicate that Beijing is not a region of seismic risk.     

华北地震构造应力场的模拟

本文简要地叙述了目前国内用以恢复现今构造应力场的一些模拟方法。特别是研究了与华北地震有关的应力场,借以估计北京附近地区地震危险的程度。所用的方法有:用有限单元方法的数学或计算的模拟;用光弹性方法或网格模型法进行的物理或实验模拟;并简述了所得结果。