REINFORCED CONCRETE PIPE Russian patent published in 2010 - IPC B28B21/56 

FIELD: construction.

SUBSTANCE: invention is related to water supply systems. Reinforced concrete pipe has steel cylinder, around which concrete is arranged, and hollow longitudinal armature in the form of additional pipes 3 for passage of water, being attached, in process of welding of end shells 5 by pipe sections 7, to helical armature 2 and to steel cylinder. Cut ends of additional pipes are tightly fixed to end shells 5 and to cut ends of additional pipes. End shells 5 are welded. Then pipe sections 7 are tightly welded to shells 5 and to cut ends 6 of additional pipes 3. Wire 8 is wound onto pipe sections 7. Water will go through pipe and also additional pipes 3.

EFFECT: passage of larger water volume through reinforced concrete pipe.

1 cl, 3 dwg