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应用非线性动力学模型,以大陆构造块体为参照对象,对大陆地震的成组孕育和发生过程进行了模拟研究。通过对6×8弹簧—滑块—阻尼器组合单元非线性动力学模型的理论计算及对其结果的分析,得到了一系列与实际地震较类似的人工地震图像,如模型中的地震活动在时间上有轮回性;在地点上有条带性,并在不同轮回中有条带迁移的现象。模型中应力变化十分复杂,但仍能为预测地震提供概略性的信息。
By using the nonlinear dynamic model and the continental tectonic block as the reference object, the group gestation and occurrence process of the continental earthquake was simulated. Through the theoretical calculation and analysis of the nonlinear dynamics model of the 6 × 8 spring-slider-damper unit, a series of artificial seismic images similar to the actual earthquakes are obtained. For example, the seismic activity in the model is Time recurrent; banding at the site, and banding in different cycles. The stress changes in the model are very complicated, but still provide the rough information for predicting earthquakes.