Abstract
When an auger excavator is used to construct various piles and underground consecutive diaphragm walls, it is usually managed by estimating the soil stratum in the construction area based on the result of preliminary boring investigation. In order to develop a new method for managing construction objectively and accurately, the authors proposed a technique that can detect the changes in ground stratum while drilling with the auger excavator, taking notice of vibration during drilling with the auger excavator, and then proved its validity by a field experiment. From the results of the experiment, there was a possibility that real-time judgment of the changes in ground stratum could be made through the vibration measurement of the auger excavator.
