One-stage prestressed concrete pipe
A concrete pipe and prestressing technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve problems such as water leakage, rubber ring slippage at the pipe socket, and poor adaptability, so as to ensure the overall quality and reduce Construction cost, easy counterpart effect
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[0011] As shown in the figure: the one-stage prestressed concrete pipe (YYG) is made of concrete 1, circular prestressed steel bar 2 and longitudinal prestressed steel bar 3 by vibrating extrusion process, and a bidirectional prestressed precast is established in the concrete pipe wall Concrete pipe body 4. The socket 5 is arranged on the left side of the concrete pipe body 4, and the socket 6 is arranged on the right side of the concrete pipe body 4. The pipe socket and the socket joint are sealed with a round solid rubber sealing ring 7 during installation.
[0012] Reduce the length a of the outer slope of the socket by 20mm, namely: DN400~1600 reach 30mm, DN1800~2000 reach 40mm, and be ground to the level of smoothness; and the length of the one-stage prestressed concrete pipe (YYG) socket working surface b Increase the value to more than 100mm, and grind to a smooth and smooth degree; increase the total depth c value of the socket of the first-stage prestressed concrete pipe...
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