THE RESPONSE FEATURES OF BIMODAL KARSTIC FLOW MEDIA TO PRECIPITATION

According to monitoring data,this paper studies different response features of pipe flow and diffuse flow to precipitation and summarizes the hydrogeological structure of ground water system of mine area.Finally,author deals with the response relationship between water yield in the mine and precipitation in past 31 years used frequency analysis of time series and reach a conclusion that the retardation time between water yield and precipitaion is 6 days.