【摘要】 根据中国华北地壳块体的地质资料 ,建立了包含多个断层带的三维真实尺度的地壳模型 .运用三维非线性动态有限元方法 ,对该地壳模型的时间逆转效应进行了仿真研究 ,揭示了在地壳中波的时间反转实现能量的集中与聚焦的行为 ,探讨了人工触震减灾的可能性 ,所得结果对城市防震减灾具有一定参考价值 .更多还原

【Abstract】 Based on the georaphic information of Huabei crust in China, real size crust model with multi faultage is established. By measn of 3 D nonlinear dynamical FEM, simulation of time reverse is performed on the model. The result shows the behavior of time reverse of wave in crust to perform the energy concentration and focusing. The possibility of touching of earthquake artificially is discussed. The result is significant for quakeproof and disaster reduction in cities.更多还原