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一、前言当前关于地壳中是否存在应力,似乎已不再是争论的焦点,但地应力是否可测和如何测量,以及地壳中的实际应力状态如何等,则成为讨论的中心问题。探测地壳中的应力有各种不同的途径,目前国内外普遍采用的方法,主要有两大类:其一,选用各种不同的传感器,在地壳的表层进行实地测量;其二,利用天然地震波或其它地球物理场特征的变化,对地壳较深部位的地应力状态进行间接的推测。后一类中以利
I. INTRODUCTION Presently there seems to be no longer the focus of debate on whether there is any stress in the crust, but whether geostress can be measured and measured and how the actual stress state in the crust has become the central issue of discussion. There are different ways to detect the stress in the earth’s crust. At present, there are mainly two kinds of methods that are widely used in the world: one is the use of various sensors to measure the surface of the earth’s crust; and the other is the use of natural seismic waves Or other characteristics of the geophysical field changes in the earth’s crust deeper in the state of stress indirectly speculated. In the latter category, Eli