eversvd,+4 (11)

This study investigates the movement of large boulders in the channel of mountain streams, emphasizing the classification of debris flow into cohesive and adhesive categories based on their formation type, density, and fractional composition. The objective is to analyze the rectilinear motion of a boulder influenced by water flow and gravity, particularly focusing on scenarios involving a positive bottom slope. The methodology includes deriving an equation to calculate the average velocity of water flow necessary for transporting a submerged boulder. Results indicate that the analytical solutions to hydraulic problems related to debris flows remain relevant and are critical for understanding the morphometric changes in transit zones. Moreover, the study highlights the challenges posed by catastrophic debris flows in mountainous areas, which threaten infrastructure and environmental sustainability. By enhancing the methods for determining the conditions of acceleration in water flow, the research contributes to the development of improved debris flow control structures, thereby addressing the pressing issues of environmental protection and safety in vulnerable regions.