Yoshiki UEHATA

Basic Research on the Landslide Prediction by the Subterranean Sound using the Model Experiment

Adviser Yasuyuki MIYAKI

Change of subterranean sound is considered to generate by the flow of groundwater, or change of ground structure before a landslide occurs. Then, this research considers change of subterranean sound as a precursor, and measures it by the sensor. Fundamental examination for predicting a landslide is performed by this method. In the first place, the model experiment was conducted in order to clarify the relation of the subterranean sound which a precursor and this emit. The flow of the groundwater which is the precursor of a landslide was imitated and generated in this experiment. And the sound which the flow of groundwater emits was measured. To the second, subterranean sound was measured in the landslide spot. And comparison with a model experiment was performed. Consequently, change of the subterranean sound under the influence of groundwater has been checked in the frequency domain 100Hz or less. This has been checked in both a model experiment and the landslide spot.