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Second Anura3D Training Course

The second Anura3D Training Course "Modelling large deformation and soil–water–structure interaction using the material point method" as part of the MPM–DREDGE project and MPM 2017 Conference has been held on 12–13 January 2017 led by Prof Kenichi Soga at Deltares Delft, The Netherlands.

Soil–water interaction

Interaction between soil, water and structures plays an important role in many environmental and civil engineering problems, such as landslides induced by rainfall, fluidisation and sedimentation processes in submerged slopes, internal erosion in dykes, scouring around offshore structures, settlement due to consolidation processes, installation of piles in saturated soils, and many more. Modelling these processes is challenging due to soil--water coupling, soil--structure interaction and large deformations occurring. In this training course the material point method (MPM) will be introduced to analyse these class of problems.

MPM is a point-based numerical method capable of modelling large deformations and recently, it has been extended and implemented in the Anura3D MPM Software to cope with advanced soil--water--structure interaction problems.

The theoretical part of this training course focuses on presenting the basic MPM formulation capable of simulating the interaction between solid and liquid phases and structures. The approaches of drained, undrained and fully coupled material behaviour will be addressed. The soil is modelled as a saturated porous continuum understood as a mixture of solid skeleton and pore water. The contact behaviour will be explained by showing the underlying algorithm and illustrative examples. For the soil constitutive behaviour basic soil models are available and an interface to include user-defined models is presented.

Figure 1: Example of tutorial exercises. Modelling of a soil column collapse. The deviatoric strain is shown.

Figure 2: Example of tutorial exercises. Modelling of a shallow foundation. The deviatoric strain is shown.

Tutored exercises

Course participants will gain experience as users of the Anura3D MPM Software. In four training exercises, the attendees will learn capabilities of Anura3D by means of a set of practical problems that will be solved following a tutorial specially designed for the course:

  • Exercise 1: Oedometer problem, modelling of dynamic consolidation in combinations with large deformation;
  • Exercise 2: Sliding blocks, modelling of contact behaviour including multiple interacting bodies;
  • Exercise 3: Column collapse (Figure 1), modelling the failure of soil as two-phase material and for pure water;
  • Exercise 4: Shallow foundation (Figure 2), modelling of soil–structure interaction and plastic soil failure.

File summary

# File name File type File size Description
1 Tutorial_2017_1.pdf PDF 34.1M Tutorial Manual (v2017.1)
2 Scientific_2017_1.pdf PDF 3.30M Scientific Manual (v2017.1)
3 Verification_2017_1.pdf PDF 3.01M Verification Manual (v2017.1)
4 Anura3D_2017_1.gid.zip ZIP 15.6M Anura3D problemtype for GiD (v2017.1)