Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Retrieval Forces Acting on Buried Telecommunication Cables

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  021087,  2002 ASAE Annual Meeting . (doi: 10.13031/2013.10374) @2002
Authors:   R J Godwin., M J O’Dogherty.; M J Hann, P, Hart; K Dicker
Keywords:   Soil mechanics, cable recovery, sea bed

The work described was conducted to assess the magnitude of the vertical forces required to recover deep-buried cables from the seabed for a range of depths cable diameters and soil conditions. Experimental work was carried out in a laboratory soil bin for (a) a peel-out condition and (b) a bight pull condition and further work was conducted in field conditions for a bight pull situation. A mathematical model was developed based on three-dimensional crescent soil failure to a critical depth together with lateral failure down to the burial depth to predict the forces. Further force components took account of cable soil friction, cable pre-tension and cable weight.

Good overall correlation between predicted and measured vertical forces was found for the laboratory peel-out and bight pull situations, with a mean difference ranging from 7.3% to 10.4%. The correlation for the field experiments was acceptable with a mean difference of 13.6%.

(Download PDF)    (Export to EndNotes)