贝纳德效应和地震预报

本文根据海城地震前后重力变化的实测资料提出重力加速度随时间变化的一种简化表示。在重力发生扰动时对贝纳德问题的动力学方程进行求解。计算结果表明,在强地震的孕育期,贝纳德花样的周期变化在一定时间后将自动停止。这个结论的验证可以作为一种新的地震预测方法的理论基础。

BE/NARD EFFECT AND EARTHQUAKE PREDICTION

Based on the information of practical survey upon gravity change before and after Haicheng Earthquake,the paper presents a reduced representation for change of acceleration of gravity with time.The kinetic equations of Be'nard problem are solved in the presence of gravity disturbance.The results indicate that periodic change of Be'nard patterns after certain time will stop automatically during pregnant period of strong earthquake.Verifica- tion of the conclusion can serve as the theoretical foundation of a new method on earthquake prediction.