WATER CONDUCTING STRUCTURE Russian patent published in 1995 - IPC

FIELD: highway engineering. SUBSTANCE: structure consists of built-up pipe having coat in form of reinforced concrete segments of cylindrical envelope of constant thickness; segments have parallel longitudinal edges with inserted parts at ends of edges made in form of plates. Segments of cylindrical envelope are interconnected by means of taper plate- type keys welded to plates of segments. Vertex angle of keys changes from 20 to 140 deg depending on number of segments in cross section of pipe. Bottom portion of pipe is foundation formed by blocks laid on base and connected with them by means of plate-type taper keys of chute. EFFECT: enhanced reliability. 2 cl, 3 dwg