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一、问题的提出 目前国内使用的电感法地应力测量到底能够对不同震级的地震在多大范围内测量到多大的前兆异常变化?它的最大控制距离是多少?这是我们在于报地震时常常碰到的,也是目前许多同志在研究的一个问题。毛主席教导我们:“要去掉我们党内浓厚的盲目性,必须提倡思索,学会分析事物的方法,养成分析的习惯。”如果我们不加思索地认为相隔几千公里的地方有一个四级地震也能够有异常反映,那么这种对应或予报究竟有多少道理,是否符合客观实际,就需要认真推敲了。因此,探讨现有仪器的控制距离,对找寻前兆与地震的确切的物理联系是有益的。 在这里我们是用一个弹性力学中无限平面上小圆孔受均布内压问题,通过求震源力的方法来解决我们所要讨论的问题。
First, the issue raised At present, the use of inductive ground stress measurement in the end to different magnitudes of the earthquake how much the precursor measured abnormal changes in how much? Its maximum control distance is how much? This is where we report the earthquake often touch It is also a problem that many comrades are studying now. Chairman Mao taught us: “If we want to get rid of the strong blindness in our party, we must promote thinking, learn ways of analyzing things, and develop the habit of analysis.” If we think without thinking that there are four levels Earthquakes can also be abnormally reflected, then how much of this correspondence or report to the truth, whether in line with objective reality, you need to carefully consider. Therefore, it is beneficial to explore the control distance of existing instruments and to find the exact physical connection between precursors and earthquakes. Here we use a flexible hole in the infinite plane of the infinite internal pressure by the problem of uniform pressure, by seeking source force method to solve the problem we are discussing.