Three Dimensional Finite Element Analysis of Deep Excavations’ Concave Corners

Authors

  • Attila Szepesházi
    Affiliation

    Budapest University of Technology and Economics

  • András Mahler
    Affiliation

    Budapest University of Technology and Economics

  • Balázs Móczár
    Affiliation

    Budapest University of Technology and Economics

https://doi.org/10.3311/PPci.8608

Abstract

The behavior of deep excavation’s retaining structures may become rather complex near the corners. The vicinity of concave corners is an especially problematic zone, and causes numerous problems in everyday practice. Conventional 2D analyses considering axisymmetric or plane strain conditions cannot be used in such cases due the spatial nature of the problem. A set of three dimensional finite element analyses have been performed aiming better understanding of soil and structure behavior near excavations’ concave corners and evaluating the influence of corner angle. The bending moment arising in anisotropic diaphragm walls near the concave corners are summarized, and compared to 2D plane strain and axisymmetric results.

Keywords:

deep excavation, retaining structures, 3D finite-element analysis, concave corner

Published Online

2016-05-31

How to Cite

Szepesházi, A., Mahler, A., Móczár, B. “Three Dimensional Finite Element Analysis of Deep Excavations’ Concave Corners”, Periodica Polytechnica Civil Engineering, 60(3), pp. 371–378, 2016. https://doi.org/10.3311/PPci.8608

Issue

Section

Research Article