Development of Erosion Scenarios for Earth Dams During Environmental Protection

The methodology for assessing the level regime in the reservoir basin shows the trend of hydrodynamic accidents and the dependence of the water level rise (fall) rate on the supplied flow. Research on the process of water overflow through the earth dam was conducted based on the developed calculation program using the example of the Langar mudflow reservoir. This mudflow reservoir was built to collect and regulate the mudflow flows of the Langar River. Similarity criteria for directly transferring the obtained results to natural conditions were fulfilled. Scenarios for the erosion of an earth dam at different water discharge values were obtained. The research results showed that the upper prism of the earth dam was preserved, while erosion occurred in the lower prism. The obtained scenario allows for consideration of hydrodynamic accidents and is recommended for assessing reservoir level regimes.