A solution: Go rigid

摘要

Rigid pipes do not deform. Most of their design strength is inherent in the pipe itself. As a consequence, rigid pipes made out of materials such as precast concrete may have less reliance on precise placement and compaction of the correct type of embedment, except as a means of distributing loads and providing a supporting reaction under the pipe. Because of their inherent strength, it is not always necessary to fully surround a rigid pipe with granular embedment, saving costs and resources. Instead, the inherent strength of a rigid pipe gives installers, specifiers and asset owners a wider choice of bedding options (see Table 1).