Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Study of the Failure Mechanism of Braced Excavations Using 3D Finite-Element Analysis
https://orcid.org/0000-0002-9304-1260
This study aims to investigate the failure mechanism of structural support systems in braced excavations. The three-dimensional finite-element method (FEM) was used to model the complexity of real geometry by considering the elastoplastic structural support system. Because failure could occur at the connection between walls and struts, a new model of a strut–wall connection was considered in the analysis to represent the actual condition of excavation failure. Three failure case histories were studied to investigate the performance of strut–wall connections by calibrating their strength parameters until the factor of safety was close to unity. It was found that a good result of stability analysis could be obtained in the FEM by considering this model. The yielding of the strut–wall connection model initiated the collapse of the bracing system in all case histories, followed by the yield of struts and failure of soils. A robust failure mechanism was also obtained, in which the yielding of the structural support system at failure initially developed at the middle section toward the corner of excavation geometry.
A Study of the Failure Mechanism of Braced Excavations Using 3D Finite-Element Analysis
https://orcid.org/0000-0002-9304-1260
This study aims to investigate the failure mechanism of structural support systems in braced excavations. The three-dimensional finite-element method (FEM) was used to model the complexity of real geometry by considering the elastoplastic structural support system. Because failure could occur at the connection between walls and struts, a new model of a strut–wall connection was considered in the analysis to represent the actual condition of excavation failure. Three failure case histories were studied to investigate the performance of strut–wall connections by calibrating their strength parameters until the factor of safety was close to unity. It was found that a good result of stability analysis could be obtained in the FEM by considering this model. The yielding of the strut–wall connection model initiated the collapse of the bracing system in all case histories, followed by the yield of struts and failure of soils. A robust failure mechanism was also obtained, in which the yielding of the structural support system at failure initially developed at the middle section toward the corner of excavation geometry.
A Study of the Failure Mechanism of Braced Excavations Using 3D Finite-Element Analysis
https://orcid.org/0000-0002-9304-1260
This study aims to investigate the failure mechanism of structural support systems in braced excavations. The three-dimensional finite-element method (FEM) was used to model the complexity of real geometry by considering the elastoplastic structural support system. Because failure could occur at the connection between walls and struts, a new model of a strut–wall connection was considered in the analysis to represent the actual condition of excavation failure. Three failure case histories were studied to investigate the performance of strut–wall connections by calibrating their strength parameters until the factor of safety was close to unity. It was found that a good result of stability analysis could be obtained in the FEM by considering this model. The yielding of the strut–wall connection model initiated the collapse of the bracing system in all case histories, followed by the yield of struts and failure of soils. A robust failure mechanism was also obtained, in which the yielding of the structural support system at failure initially developed at the middle section toward the corner of excavation geometry.
A Study of the Failure Mechanism of Braced Excavations Using 3D Finite-Element Analysis
Int. J. Geomech.
Abdi, Ari Surya (Autor:in) / Ou, Chang-Yu (Autor:in)
01.07.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Finite Element Analysis of Braced Excavations in Soft Clay
| British Library Conference Proceedings | 1994
Analysis of braced excavations with coupled finite element formulations
| Elsevier | 1991
Finite Element Analysis of the Combined Effects for Adjoining Braced Excavations
| British Library Online Contents | 2003
| British Library Conference Proceedings | 1996