Experimental determination of the interaction of plastic jacket pipes in transmitted heat supply systems and innovative pipe burial method

摘要

The experiments included low - speed displacement cycles with and without lateral displacement of the specimens and high - speed displacement cycles as defined in KIN EN 489 at in some cases fluctuating fluid entry temperatures. It was established That the frictional forces acting in the case of thermally induced axial displacement In WBM are greater than in the case of embedding in sand. This is true in particular Of the frictional forces occurring at initial displacement, but also for all subsequent Load application cycles. This means that thermally induced displacement of a KMR Line embedded in WBM is lower than in the case of conventional burial in sand.