抄録
It is very important to predict the landslide behaviour in prior to its occurence, especially for the traffic safety. The authers measured the landslide movement and groundwater table variation in a landslide between Toyono and Mure on Shin-etsu line. The measured data show that after water tables in the landslide area keep high level during long period in snow melting or rainy season the distinct landslide movements occur.
