| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an estimation method of a ground structure and an estimation system capable of estimating accurately an underground structure of the ground. SOLUTION: In this estimation method of the ground structure, estimation is executed by a first step for measuring a slight movement of the ground by installing sensor arrays composed of plural vibration sensors on the ground surface, a second step for calculating dispersion characteristics of a phase velocity from slight movement data of the sensor arrays, a third step for averaging the dispersion characteristics calculated from the slight movement data of same- sized sensor arrays among the sensor arrays, and a fourth step for integrating the dispersion characteristics obtained in the second step and the averaged dispersion characteristic obtained in the third step among the sensor arrays. This estimation method is performed by using the dispersion characteristic integrated in the fourth step.</p> |
