Design practice in offshore geotechnical engineering has grown out of onshore practice, but
the two application areas have tended to diverge over the last thirty years, driven partly by …

This paper addresses the influence of pipe-soil interaction on the design of pipelines
susceptible to lateral buckling and pipeline-walking. The pipe-soil response is the largest …

Pipelines and flowlines represent major cost items in the development of deepwater fields.
Accurate modelling of the axial and lateral pipe-soil resistance can lead to significant cost …

A laboratory research program was undertaken to study the large-strain shear strength
characteristics of fine-grained soils under low effective normal stresses (∼ 3–7 kPa). Soils …

The paper describes the evolution of a new deep water in-situ testing system that is
designed to measure the seabed soil-pipe interaction forces in the vertical, axial and lateral …

A range of geotechnical applications require measurement of shear strength at effective
stresses below those commonly employed in conventional shear testing devices. Of these …

When a pipeline is laid on a soft clay seabed, excess pore pressure is generated. During the
subsequent dissipation process, the effective stress at the pipe–soil interface and the …

The residual shear strength mobilized between pipelines and supporting soils at low
effective normal stresses is needed for designing stable pipelines in offshore environments …

Greater Plutonio is a large subsea development of five fields (BP 50%, Sonangol/Sinopec
50%) in deepwater offshore Angola Block 18. The development comprises an FPSO …

This study presents the results of interface torsional ring shear tests conducted at
intermediate normal stress levels that are usually prevalent at soil–pipeline interfaces under …