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| | Abstract | | For the monitoring of the state of chemical grouting and of the subterranean stream by repetitious measurement of electric resistivity tomography, the large infiltration velocity often prevents us from getting accurate result. Because the prerequisite condition that the electric resistivity distribution doesn't hardly change during a measurement isn't satisfied. Inversely decrease of measurement time at a time by reduction of measurement datum causes a decline in precision and density of inversion analysis for shortage of datum. To solve this problem, we developed a new method of analysis to estimate electric resistivity in all time steps at a time. In addition we obtained a good result by this new method than by the conventional one through a numerical simulation to confirm the advantage of it. |
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