Abstract
Fine particle migration process induced by seepage forces is considered as one of the main mechanisms leading to failures of earth dams and colluvial soil slopes. So far, this process has been mainly simulated with the Finite Element Method (FEM). However, large soil deformation may take place at and after the failure, which is beyond the capability of FEM. In this paper, a coupled seepage-erosion formulation suitable for the Material Point Method (MPM) is proposed for this process based on the mixture theory. By simulating the fine particle migration process within both saturated and unsaturated 1D soil column under water pressure gradient, the formulation capabilities as well as its MPM implementation are validated.
| Original language | English |
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| Title of host publication | Proceedings of the 2nd International Conference on the Material Point Method for Modelling Soil-Water-Structure Interaction (MPM 2019) |
| Editors | Dongfang Liang, Krishna Kumar, Alexander Rohe |
| Publisher | Ocean Press |
| Number of pages | 6 |
| ISBN (Print) | 978-7-5210-0316-1 |
| Publication status | Published - Jan 2019 |
| MoE publication type | A4 Conference publication |
| Event | International Conference on the Material Point Method for Modelling Soil-Water-Structure Interaction - University of Cambridge, Cambridge, United Kingdom Duration: 8 Jan 2019 → 10 Jan 2019 Conference number: 2 http://mpm2019.eu/home |
Conference
| Conference | International Conference on the Material Point Method for Modelling Soil-Water-Structure Interaction |
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| Abbreviated title | MPM |
| Country/Territory | United Kingdom |
| City | Cambridge |
| Period | 08/01/2019 → 10/01/2019 |
| Internet address |
Keywords
- internal erosion
- fine particle migration
- unsaturated soil
- material point method