The pipeline zone is precisely defined when installing a pipeline using the trench technique. In this context, the soil surrounding the pipe is prepared in such a way that the pressurised medium-bearing pipe is protected from external influences.
Increasing cost pressure is forcing many utilities to examine the necessity of costly sand bedding when installing new lines. If the excavated soil can be compacted, it can be reutilised for filling, instead of using sand. Of course, this presupposes a pipe system that can withstand the resultant loads.