Ecological Systems and Devices Annotation << Back ENVIRONMENTAL PROBLEMS FOR PROTECTION OF FACILITIES AGAINST HARMFUL IMPACT OF DEBRIS FLOW O.G. Natishvili, I.G. Kruashvili «Quasi-homogeneous» stream of highly concentrated channel fl ow, which includes cohesive debris fl ow, is considered. Continuous waves in debris fl ow at motion of entering stream with a constant fl ow as well as variable discharge along the path are explored. Attention towards the emergence of dynamic waves on the surface of the stream is drawn and losses of stability of initial uniform motion in channels with steep slopes are investigated. Mechanism for moving the large-sized rock fragments by means of debris fl ow is determined. Keywords: debris fl ow; discharge; average speed; waves in debris fl ows; movement. Contacts: E-mail: agr.otari@science.org.ge, E-mail: iraklikruashvili@yahoo.com Pp. 20-30.