Advanced Finite Element Analysis

Cathie Associates applies advanced finite element analysis if and when required for solving geotechnical and soil-structure interaction problems. As a technical authority in this field, Cathie Associates has used numerical analysis to improve design practices and to provide insight in foundation capacity and serviceability problems. Cathie Associates have extensive experience using the geotechnical software PLAXIS 2D/3D and the general purpose 3D finite element code Abaqus.

At the start of each numerical project, we assess the need for advanced numerical analysis carefully. The added value to projects has to justify the cost of performing this analysis, otherwise simplified analytical procedures are recommended.

Example projects include:

  • Conductor pipe influence analysis (Offshore UAE). 3D Abaqus FEA for assessing the influence of installation of 2 new conductor pipes on the capacity of piles of an existing platform
  • A-shaped mudmat capacity analysis (Offshore Indonesia). Analysis of six degree-of-freedom loading on an A-shaped mudmat foundation for a mobile production unit (MOPU)
  • Technip CAISSON. 2D numerical analysis to identify failure mechanisms of suction caissons in soft clay. 3D numerical analysis to calibrate the limit equilibrium code CAISSON
  • VHM capacity analysis for mudmat foundations. Six degree-of-freedom numerical analysis for combined loading of mudmat foundation on clay
  • Large-displacement pipe-soil interaction analysis (SAFEBUCK JIP). Analysis of the lateral buckling response of offshore pipelines in soft clay
  • Pipeline plough share-soil interaction analysis. 3D finite element analysis for tow force analysis of pipeline ploughs in clay and sand, including partial drainage effects
  • Cyclic pore-pressure generation-dissipation analysis for suction caissons in sand. 2D and 3D finite element analysis to assess the effect of pore pressure build-up and dissipation on foundation capacity
  • 3D numerical analysis of pipeline on bottom roughness using in-house developed libraries to customise pipe soil interaction behaviour