FIELD STUDIES OF RESERVOIR DRAINAGE

Abstract

At present, 95% of water reservoirs used in our country are constructed of earth dams. A topical issue is the study of the influence of filtration processes on groundwater dams, occurring both on the dam body and on its bottom. Therefore, the study and evaluation of the filtration water content in the water body runoff is of great importance for the prevention of suffosion phenomena. During the natural-scientific field studies, measurements of seepage water coming from the dam of the Chimkurgan reservoir were carried out at 19 gauging stations. When determining the amount of dry residues in water samples taken from each gauging station, the results at gauging stations 3A, 4, and 7 were very close to the upstream water level.
However, at the other gauging stations, these values were at much higher levels.
The pH levels of the samples obtained were checked using a pH Meters instrument, and it was found that they were not significantly different from each other. The spectrophotometric device was used to determine the turbidity of the seepage waters, and it was found that the turbidity was higher in the samples taken from gauging stations 1, 4, 4a, 5, 6, 7, 7b, and 8a. The results obtained from this study show that studying the composition of seepage water in dams and evaluating the seepage process are important tasks. This ensures the reliable operation of earth dams.