Installing a Cable in a Duct Solely by the Flow of Water, Faster than the Flow Itself!
Installation of cables by floating (water) combines benefits of blowing (distributed propelling forces avoiding capstan effect) and buoyancy (reduction effective cable weight). 12.4 km in one shot was already reached. In this paper tests were done in a 2.54 km dummy track to evaluate feasibility of a 30 km project. Multiple loops were placed to eliminate ail other effects than water flow. With 1.5 bar the cable would still move, extrapolated 30 km with 18 bar. A remarkable phenomenon was found: the cable moved faster than the water! This was already forecasted and is further explained in this paper.
Willem Griffioen, Michael van Moppes, Jan Peder Hegdal, Jim Ronny Olsen, Vengaard Lilleløkken, Marcos Mockel, Nicolas Tito, Jean-Benoit Laudet
