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Flexible and Rigid Pipe Installation

Flexible and Rigid Pipe Installation:

Review and Discussion

ACPA-Website-Icon-Installation-Flexible-and-Rigid-Pipe-Installation-1Flexible pipes respond to load differently than rigid pipes as shown in the picture to the right. Flexible pipe require a very strong, well compacted side fill, because the pipe will shorten vertically with applied vertical load thereby deflecting the sides of the pipe outward horizontally engaging the side-fill soils as a column that is assumed to be stiffer than the pipe and carries some of the vertical load; and as a bearing surface for the sides of the pipe to resist the horizontal deflection of the pipe counteracting the deflecting forces within the pipe. Rigid pipe deflects vertically, but to a much lesser degree and relies very little on the horizontal support given by the side-fill soils.

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