Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical analysis of the installation effect of diaphragm walls in saturated soft clay
Abstract The construction of diaphragm wall panels can cause the stress change and soil movements in adjacent ground. In this paper, the construction sequence of a typical diaphragm wall panel in saturated soft clay is simulated with a 3D finite element program. The soil is assumed to behave as an isotropic linear elastic/Mohr–Coulomb plastic material with a soil–water coupled consolidation response. Influence of the pore water pressure is concerned to consider the consolidation behavior of the saturated soft clay. The analysis shows that the changes in effective horizontal stress and pore water pressure during diaphragm wall installation depend on arching mechanism and permeability. The variation in stresses and movements of ground computed by the coupled consolidation analysis and the total stress analysis are compared. Influences of the permeability coefficient on the installation effects are discussed by parametric studies. Finally, a case study of a diaphragm wall construction in Shanghai, in which the ground settlements were monitored, is presented to illustrate the prediction procedure of coupled consolidation analysis.
Numerical analysis of the installation effect of diaphragm walls in saturated soft clay
Abstract The construction of diaphragm wall panels can cause the stress change and soil movements in adjacent ground. In this paper, the construction sequence of a typical diaphragm wall panel in saturated soft clay is simulated with a 3D finite element program. The soil is assumed to behave as an isotropic linear elastic/Mohr–Coulomb plastic material with a soil–water coupled consolidation response. Influence of the pore water pressure is concerned to consider the consolidation behavior of the saturated soft clay. The analysis shows that the changes in effective horizontal stress and pore water pressure during diaphragm wall installation depend on arching mechanism and permeability. The variation in stresses and movements of ground computed by the coupled consolidation analysis and the total stress analysis are compared. Influences of the permeability coefficient on the installation effects are discussed by parametric studies. Finally, a case study of a diaphragm wall construction in Shanghai, in which the ground settlements were monitored, is presented to illustrate the prediction procedure of coupled consolidation analysis.
Numerical analysis of the installation effect of diaphragm walls in saturated soft clay
Chen, Jin-Jian (Autor:in) / Lei, Han (Autor:in) / Wang, Jian-Hua (Autor:in)
Acta Geotechnica ; 9 ; 981-991
10.12.2013
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Diaphragm wall , Ground settlement , Installation effects , Numerical analysis , Pore water pressure , Saturated clay Engineering , Geoengineering, Foundations, Hydraulics , Continuum Mechanics and Mechanics of Materials , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics , Structural Mechanics
Numerical analysis of the installation effect of diaphragm walls in saturated soft clay
| British Library Online Contents | 2014
Numerical analysis of the installation effect of diaphragm walls in saturated soft clay
| Online Contents | 2013
Installation effects of diaphragm walls in clay
| British Library Conference Proceedings | 1993
Numerical modelling of installation effects for diaphragm walls in sand
| Online Contents | 2012
Numerical modelling of installation effects for diaphragm walls in sand
| British Library Online Contents | 2012