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The article is devoted to the development of a new pipe-laying technology for heating networks of energy systems when crossing water barriers. In this paper a piping structure consisting of a carrier steel pipe enclosed in composite material for heat insulation and ballasting with an outer protective polyethylene casing is described. Theoretical and experimental studies of the structure are presented, mathematical models of the physicomechanical properties of the proposed composite material are developed, a technical-and-economic assessment is carried out.

Underwater Laying of Pipes for Heating Networks of Energy Systems