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The dynamics of rupture in porous media |
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| Authors: | Wojciech Stopiński Aleksandr V Ponomaryov Vladimir Lo? |
| Institution: | (1) Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland;(2) Institute of the Earth Physics, USSR Academy of Sciences, Moscow, USSR |
| Abstract: | This paper presents a laboratory investigation of electric resistivity parameter for samples subject to loading in automatic press of  INOVA type. The procedure of automatic quasi-continuous measurements of resistivity is briefly outlined. The distribution of mini-electrodes within the sample is described. Also shown is the manner in which reliability can be improved by increasing the repetition of resistivity measurements (every 7–16 s). |
| Keywords: | Rock resistivity measurements laboratory experiments on fracturing rockburst and earthquake precursors mechanical-dynamical phenomena porous media monitoring of stress field changes |
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