| 摘要 |
<p>PURPOSE:To make it possible to apply a shallow soil prospect method and perform a three dimensional prospect. CONSTITUTION:Two sources of traverse A and B, which intersect each other, are set to the surface of a face 18 which is an excavated plane under ground where vibration sources 10 and vibration receivers 12 are laid out at a specified interval along each source of traverse. The seismic waves generated by the vibration sources 10 are reflected on a change plane of a geological features in front of the face 18 and detected with each vibration receiver 12. A control device stores data of the reflected waves detected with the vibration receivers 12 consecutively in a memory device and reads data equivalent to the same common reflected points from the stored data. After having obtained the data of the reflected waves by performing processing, such as correction, the device analyzes the position of the change plane of the geological features. An arithmetic operation device carries out this analysis in terms of the courses of traverse A and B respectively and analyzes the change plane of the geological features in a three dimension fashion based on the over-all results.</p> |
