Scaling effects in the 1 g modelling of offshore pipeline ploughs

TY - GEN

T1 - Scaling effects in the 1 g modelling of offshore pipeline ploughs

AU - Lauder, K. L.

AU - Brown, M. J.

PY - 2014

Y1 - 2014

N2 - Refining existing models to predict the rate of progress and likely tow forces encountered during offshore ploughing for pipeline installation typically requires an extensive parametric study. Due the difficulties in separating the various components of plough resistance from full scale field measurement details and issues of geotechnical variability it is more efficient and reliable to undertake such studies at laboratory scale. Due to the large number of parameters and long mobilization distances such studies are better suited to 1 g rather than centrifuge. Various scale 1 g testing facilities were developed to undertake a parametric study under a wide range of conditions. The modeling systems developed are presented and the adequacy of the 1 g approach is verified through the modeling of models. This study also highlights the difficulties of modeling the behavior of low effective stress operations and highlights the need for appropriate parameter selection determined at effective stresses applicable to the application.

AB - Refining existing models to predict the rate of progress and likely tow forces encountered during offshore ploughing for pipeline installation typically requires an extensive parametric study. Due the difficulties in separating the various components of plough resistance from full scale field measurement details and issues of geotechnical variability it is more efficient and reliable to undertake such studies at laboratory scale. Due to the large number of parameters and long mobilization distances such studies are better suited to 1 g rather than centrifuge. Various scale 1 g testing facilities were developed to undertake a parametric study under a wide range of conditions. The modeling systems developed are presented and the adequacy of the 1 g approach is verified through the modeling of models. This study also highlights the difficulties of modeling the behavior of low effective stress operations and highlights the need for appropriate parameter selection determined at effective stresses applicable to the application.

UR - https://www.scopus.com/pages/publications/84890029130

M3 - Conference contribution

AN - SCOPUS:84890029130

SN - 9781138022218

VL - 1

SP - 377

EP - 383

BT - ICPMG2014 - Physical Modelling in Geotechnics

A2 - Gaudin, Christopher

A2 - White, David

PB - CRC Press

T2 - 8th International Conference on Physical Modelling in Geotechnics 2014

Y2 - 14 January 2014 through 17 January 2014

ER -