Holes that must be performed before inserting the ground heat exchanger Geothex include mechanical drilling. In the Netherlands, a daily dose of mechanical drilling carried out for many different purposes.
The uncontrolled drilling of separating layers in our time inevitably leads to soil deterioration in the quality of groundwater. Therefore, the government regulations to carry out mechanical drilling. Central to this is that from 1 January 2011 certain types of mechanical drilling should only be performed by government-approved companies. Therefore approval is required for most mechanical drilling to be performed. A good example that applies to the insertion of the heat exchanger is in the Geothex intepretatieblad (see below) on page 3:
“section 5.4: drilling companies who always bore the whole completely sealed with non-porous material having according to protocol 2006, Section 6.2, implicitly not to identify where the separating layers are located. For them there is therefore no need to drill or descriptors to be checked “
The requirements under which a company must work to get the certificate to be in three papers. The general quality of the company are in BRL SIKB 2000 (‘Fieldwork in environmentally sound soil and water and soil mechanical drilling, Version 4.0 December 17, 2009). The technical implementation requirements for mechanical drilling are in Protocol 2006 (‘Mechanical drilling, version 1.1 of December 17, 2009). Since the adoption of BRL SIKB 2000 and 2006 are protocol changes made in the Interpretation Journal (with version 4.0 of BRL SIKB 2000 adopted on March 4, 2010). The new drilling method Geothex largely meet the new drilling protocol which January 1, 2011 will be in force.