Rov Assisted Geotechnical Investigation of Trench Backfill Material Aids Design of the Tordis to Gullfaks Flowlines

During 1992 an innovative geotechnical investigation was performed in order to assist the design of the Tordis to Gullfaks ‘C’ flowlines. Data was required for the analysis of upheaval buckling resistance within a back filled trench and to assess the effectiveness of the backfill material as a thermal insulator,