A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of one-dimensional nonlinear consolidation of a saturated lumpy porous clay layer
Abstract In reclamation projects, excavated clay is dumped without any compaction to form a landfill with a heterogeneous pore structure. In this clay,interlump fissures isseveral orders of magnitude larger thanintralump pores, forming lumpy porous clay with double porosity. In this study, a nonlinear consolidation model is proposed for lumpy porous clay based ondouble porosity concept and mixture theory. The analysis follows these steps: in step 1, a representative saturated lumpy porous clay is considered as a 3-part composition, i.e., solid, fissure fluid and pore fluid, and the volume fractions are defined; in step 2, the decomposition equation is given for each part’s strain, and the homogenization relation of mixture theory is used to provide the stress relation inside the saturated lumpy porous clay; in step 3, the energy balance equation is derived in terms of the energy conjugation; in step 4, according to the energy conjugation pairs, new nonlinear constitutive equations are proposed for saturated lumpy porous clay; and in step 5, using Darcy's law, the consolidation control equations are given. The model calculations are compared with experimental data, indicating that the proposed model can effectively simulate the consolidation curves of the clay observed in the laboratory.
Analysis of one-dimensional nonlinear consolidation of a saturated lumpy porous clay layer
Abstract In reclamation projects, excavated clay is dumped without any compaction to form a landfill with a heterogeneous pore structure. In this clay,interlump fissures isseveral orders of magnitude larger thanintralump pores, forming lumpy porous clay with double porosity. In this study, a nonlinear consolidation model is proposed for lumpy porous clay based ondouble porosity concept and mixture theory. The analysis follows these steps: in step 1, a representative saturated lumpy porous clay is considered as a 3-part composition, i.e., solid, fissure fluid and pore fluid, and the volume fractions are defined; in step 2, the decomposition equation is given for each part’s strain, and the homogenization relation of mixture theory is used to provide the stress relation inside the saturated lumpy porous clay; in step 3, the energy balance equation is derived in terms of the energy conjugation; in step 4, according to the energy conjugation pairs, new nonlinear constitutive equations are proposed for saturated lumpy porous clay; and in step 5, using Darcy's law, the consolidation control equations are given. The model calculations are compared with experimental data, indicating that the proposed model can effectively simulate the consolidation curves of the clay observed in the laboratory.
Analysis of one-dimensional nonlinear consolidation of a saturated lumpy porous clay layer
Wang, A-qiang (author) / Hu, Ya-yuan (author) / Zhou, Wan-huan (author) / Liu, Xing-wang (author)
2021-09-07
Article (Journal)
Electronic Resource
English
One-dimensional self-weight consolidation of a lumpy clay fill
| British Library Online Contents | 2002
One-dimensional consolidation of lumpy clay with non-linear properties
| British Library Online Contents | 2005
One-dimensional consolidation of lumpy clay with non-linear properties
| Online Contents | 2005
One-dimensional self-weight consolidation of a lumpy clay fill
| Online Contents | 2002
Numerical Method for Consolidation Analysis of Lumpy Clay Fillings with Meshless Method
| British Library Conference Proceedings | 2004