A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multiscale Modelling and Analysis of Soil Arching in Granular Soils
Understanding the ground response induced by underground excavation in granular soils is important for assessing the construction risk in similar urban geological environment. This paper presents an application of the hierarchical FEM/DEM coupling multiscale approach in the simulation of classical trapdoor tests. The multiscale simulation reveals the development pattern of the soil deformation, soil shear zones, and load transfer in the case of various overburden depths and soil density. Furthermore, the multiscale approach provides insight into the microstructure evolution underlying the macroscopic deformation from the perspective of RVE powered by DEM. This study demonstrates that the multiscale approach can bypass the phenomenological assumptions on conventional constitutive relations and accurately reproduce the soil arching behavior due to underground loss. Meanwhile, based on the efficiency advantage of massively parallel computation, the multiscale approach is expected to further solve the engineering-scale problems under complex boundaries.
Multiscale Modelling and Analysis of Soil Arching in Granular Soils
Understanding the ground response induced by underground excavation in granular soils is important for assessing the construction risk in similar urban geological environment. This paper presents an application of the hierarchical FEM/DEM coupling multiscale approach in the simulation of classical trapdoor tests. The multiscale simulation reveals the development pattern of the soil deformation, soil shear zones, and load transfer in the case of various overburden depths and soil density. Furthermore, the multiscale approach provides insight into the microstructure evolution underlying the macroscopic deformation from the perspective of RVE powered by DEM. This study demonstrates that the multiscale approach can bypass the phenomenological assumptions on conventional constitutive relations and accurately reproduce the soil arching behavior due to underground loss. Meanwhile, based on the efficiency advantage of massively parallel computation, the multiscale approach is expected to further solve the engineering-scale problems under complex boundaries.
Multiscale Modelling and Analysis of Soil Arching in Granular Soils
Lecture Notes in Civil Engineering
Wu, Wei (editor) / Leung, Chun Fai (editor) / Zhou, Yingxin (editor) / Li, Xiaozhao (editor) / Xie, Yipeng (author) / Yang, Junsheng (author) / Fu, Jinyang (author)
Conference of the Associated research Centers for the Urban Underground Space ; 2023 ; Boulevard, Singapore
2024-07-10
9 pages
Article/Chapter (Book)
Electronic Resource
English
| ASCE | 2005
Analysis of sequential active and passive arching in granular soils
| Taylor & Francis Verlag | 2021
Analysis of the arching action in granular mass.
| Online Contents | 1993
Analysis of the arching action in granular mass
| British Library Online Contents | 1993
Analysis of the arching action in granular mass.
| Online Contents | 1993