Immersed isogeometric Boundary Elements: A user friendly method for the 3-D elasto-plastic simulation of underground excavations

TL;DR

This paper introduces an immersed isogeometric Boundary Element Method for 3D elasto-plastic underground excavation simulations, emphasizing user-friendliness, geometric accuracy, and the ability to handle complex ground conditions.

Contribution

It presents a novel immersed isogeometric boundary element approach that simplifies mesh generation and accurately models complex underground excavation geometries and material behaviors.

Findings

Demonstrates high accuracy in underground excavation simulations.

Shows ease of use with automatic mesh generation.

Handles heterogeneous, anisotropic, and nonlinear ground conditions.

Abstract

The immersed isogeometric Boundary Element Method is presented and applied to the simulation of underground excavations. Nonuniform rational B-splines (NURBS) are used for the accurate definition of complex geometries with few parameters. Immersed technology is applied to automatically generate cell meshes. This allows heterogeneous and anisotropic ground conditions as well as nonlinear material behaviour to be considered. On a practical example the user friendliness and accuracy is demonstrated.