ABSTRACT
Landslides occurred at Li-Shan in central mountain area of Taiwan are divided into many large blocks action. In order to predict the stability of slopes in the future, time series analysis was applied to study the relationship between rainfall intensity and groundwater level fluctuation. Hourly data on rainfall in four of six monitoring stations were applied to form its ARIMA(p,d,g) model. Then, transfer function for each pair of rainfall intensity and groundwater level change was searched. Discussion on the simulated result told that, for different hydrological situation, the transfer function defined are different. For each slope studied, its representing transfer function can be applied to predict groundwater level change inside slope, so as its factor of safety in regard to slope stability.
