摘要
由于钻孔内外的介质模型的力学性能不能测定 ,不能用波动方程来解钻孔应变地震波。为此 ,利用钻孔应变固体潮观测资料的调和拟合结果 ,对钻孔应变仪进行标定 ,或用摆式地震仪测出的位移进行标定 ,求出钻孔应变的应力响应系数 ,用平衡方程的解近似地代替波动方程的解。文中还导出了计算地震震级的公式和计算钻孔周围岩石弹性系数的方法 ,不但解决了上述难题 ,还使计算大为简化。
It is unable to solve the strain seismic wave of bore hole by wave equation because the mechanical characters of the media models inside and outside bore hole can not be determined.For this reason,in this paper the bore hole strain seismograph is calibrated with the result from harmonically fitting or with the displacement measured by pendulum,then the stress corresponding coefficient of the bore hole strain can be derived and the resolution of wave eguation can be substituted approximately by the resolution of balance equation.Furthermore the formulae for calculation of the magnitude as well as the method for calculation of the elastic coefficient of the rock around the bore hole are derived.Thus not only the above problems can be resolved but also the computation is simplied considerably.\;
出处
《地壳形变与地震》
CSCD
2000年第4期57-64,共8页
Crustal Deformation and Earthquake
基金
中国科学院测量与地球物理研究所动力大地测量开放实验室资助
关键词
应变固体潮
应变地震波
钻孔应变
应力系数
strain earth tide
strain seismic wave
bore hole strain
stress coefficient
