Influence of speed of filling and draw-off to the filtration regime of Earth-fill dam

To use and manage water resources carry out protection measures from the destructive effect of flow, reservoir hydrosystem construction has greatly developed. The article presents results field studies to determine unsteady filtration in Earth-fill dam core. In research process, static data literature review, study data, theoretical processing were used. Numerical was carried with methods mathematical statistics, graphical part done using Microsoft Excel. Calculations for phreatic line curve core under various velocities draw-off yield coefficient. At same time, it been established that increase velocity time leads pressure, decrease factor pressure. turn, contributes intensity