Within the framework of the research that has been conducted by the participants of the Horizontal Directional Drilling Research Association which restarted in 2001, several studies were completed and finalised in three reports. The first report dealt with the issue of good practise in monitoring. This topic is of considerable importance to consultants and contractors because a majority of the transfer of newly gained process knowledge and risk assessment from the last several years in joint research takes place in their fields of expertise. The second completed research initiative concerns the verification of process knowledge in an actual prototype test project. In this study, the dynamics that govern the maximum pressure in bore holes were checked and consecutively funded with a method to calculate and thus predict this. The third evaluation submitted by the participant concerns an overall evaluation of the new research conducted in the last few years. This was established as a principal effort of the Delft University of Technology with the support of WL / Delft Hydraulics. Last but not least, there was a substantial contribution to the relevance and review of the tunnel boring projects executed within the Betuweroute project and the High Speed Railway line. As with the Horizontal Directional Drilling study, these addressed the topics of industrial flow technology. |