Mark Cassidy

Envelopes for the soil-resistance capacity of a shallowly embedded pipeline in clay under three-dimensional combined loadings

Yinghui Tian, Tao Zhou, Mark J Cassidy, Le Wang

Journal article  |  2023  |  APPLIED OCEAN RESEARCH

Envelopes are developed for the soil-resistance capacity of pipelines shallowly embedded in clay subjected to combined three-dimen..

Mitigation of punch-through in stiff-over-soft clay by changing spudcan shape

JM Lee, MS Hossain, YH Kim, MJ Cassidy, Y Hu

Journal article  |  2022  |  Ocean Engineering

This study focuses on easing or eliminating potential punch-through in two-layer stiff-over-soft clay deposits by tweaking spudcan..

Investigation of the installation process of drag-in plate anchors from LDFE modelling

Shubhrajit Maitra, Yinghui Tian, Mark J Cassidy

Journal article  |  2022  |  GEOTECHNIQUE

The installation of drag-in plate anchors is investigated using advanced large deformation finite element (LDFE) analysis. A new m..

A complete analytical solution for axial pipeline walking considering seabed resistance as rigid plastic behaviour

Yinghui Tian, Wanchao Wu, Mark J Cassidy, Mark F Randolph

Journal article  |  2022  |  GEOTECHNIQUE

Offshore pipelines are important infrastructure for transporting oil and gas. They are subjected to cycles of high temperature and..

Numerical pushover analysis of jack-up units in soft clay overlying sand

Y Wang, MJ Cassidy, B Bienen

Journal article  |  2022  |  OCEAN ENGINEERING

A site-specific assessment is required to ensure the safe operation of a mobile jack-up unit under a design storm. The evaluation ..

Embedment depth and uplift capacity of a cryogenic pipeline dynamically laid in a trench

MS Hossain, YH Kim, MJ Cassidy, Y Tian, H An, YT Kim, KT Bae

Journal article  |  2022  |  OCEAN ENGINEERING

A cryogenic pipeline is a pipe-in-pipe with larger outer diameter, and is heavier and stiffer, compared to conventional deepwater ..

Coupled hydro-mechanical interfaces to enable uplift modelling in offshore engineering

Yinghui Tian, Jie Ren, Tao Zhou, Maozhu Peng, Mark J Cassidy

Journal article  |  2022  |  OCEAN ENGINEERING

In many fields of geotechnical engineering, the numerical modelling of structure-soil interaction remains a fundamental but challe..

Cone penetration in a thin medium dense sand layer sandwiched by different clay layers – LDFE analysis

Q Xie, YX Hu, MJ Cassidy, M Zhou

Conference Proceedings  |  2022  |  Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022

The cone penetration test (CPT) has been the most common site investigation practice for decades. This paper presents the results ..

A macro-element model for predicting the combined load behaviour of spudcan foundations in clay overlying sand

Yifa Wang, Mark J Cassidy, Britta Bienen

Journal article  |  2021  |  Géotechnique

A macro-element model for predicting the load-displacement behaviour of a spudcan foundation in clay overlying sand when subjected..

Optimisation of the padeye location for dynamically embedded plate anchors

Yinghui Tian, Conleth D O'Loughlin, Mark J Cassidy

Journal article  |  2021  |  COMPUTERS AND GEOTECHNICS

Dynamically embedded plate anchors (DEPLAs) are a relatively new anchor type that combine the advantages of dynamically installed ..