The market demands in site tested borehole heat exchangers. The Swiss SIA has responded to this need in the revision of the norm SIA 384/6 and improved the test procedures.
The backfilling process of the BHE is to be recorded electronically. Each BHE is flushed according to specifications. A standardized flow and leak test must be recorded and weighed electronically.
The complex relationships between backfill materials, BHE types and BHE-length and the corresponding test parameters are explained.
In order to support the drilling companies, the H-EP testing machine was developed, which records the backfill density and the injected volume and carries out the tests in accordance with the standard (SIA). The test machine supports the user on the graphical display, analyzed the measurement on an ad hoc basis and creates evaluated reports that are displayed on the device and can be sent directly from the construction site.