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本文导出了半无限弹性体内垂直集中力产生的应力场精确解,并以此作为积分核进行积分计算,研究了不同参数的垂直分布力源在地壳中引起的附加应力分布特征,通过所得结论对华北地区的地震成因进行了分析。
In this paper, we derive the exact solution of the stress field generated by the vertical concentrated force in the semi-infinite elastic body and use it as the integral kernel to calculate the integral stress. The distribution of additional stress in the crust caused by different vertical distribution of force is studied. The causes of earthquakes in North China are analyzed.