Variation of tow force with velocity during offshore ploughing in granular materials

2012/11/01 by Keith Lauder, Keith Duncan Lauder, Michael John Brown +4 · 1 citation
Engineering · #Geotechnical Engineering and Soil Mechanics #Geotechnical Engineering and Underground Structures #Geotechnical Engineering and Soil Stabilization

paper · doi:10.1139/t2012-086

Abstract

Pipeline plough behaviour has been investigated by means of reduced scale physical model testing. A testing programme was devised to investigate the influence of permeability, relative density, and plough depth on the associated tow force measured during ploughing over a range of velocities in saturated granular material. An increase in tow force with velocity was found during all of the tests and the results have been compared to previously developed analytical models. A new empirical equation has been developed to describe the change in tow force with velocity for a variety of model siliceous sand conditions. Application of this new approach to full-scale ploughing requires consideration of scaling effects and the use of appropriate input parameters determined to replicate field conditions.

Citations

• Speed effects in cutting and ploughing

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