预破裂中声波信号参数特性

通过对岩石样品进行变形及破坏试验，研究断裂形成过程中的声发射记录（ＡＥ），以找到能解释地震前兆现象的方法．另外，对试验过程中获得的大量数据及资料进行了数理统计处理．

PARTICULAR FEATURES OF THE ACOUSTIC SIGNALS PARAMETERS IN THE PREPARATION OF A GENERAL FAILURE

Lately, for solving the problems of finding earthquake precursors. great attention is Peid to theexperimental study Of a fracture forming in the deformation and destruction of rock samples bymeans of registering the acoustic emission (AE)1-4]. This method allows one to gather a great massof data for statistical processing and to investigate in detail the process of the general failure development.With this aim,the experiments on the "hard" axial stress in granite and gneiss have beenmade.The "hard" stress of the rocks is different from the "soft" one as the former one has on sudden destruction caused by the local loss of stability in the forming of large structures. The "hard" stress makes it possible to watch the whole process of development and form the main (general)failure , and, partially, also to watch the behaviour of rocks beyond the zone of deformation.