Abstract
A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane over a geosynthetic clay liner) under conditions encountered in brine or solar ponds, where temperatures can reach up to 95°C and the geosynthetic clay liner is subject to low effective stress. The model considers void ratio and temperature-dependent soil-water characteristic curves (SWCCs) for needle-punched GCLs. The model was validated against results from experimental column studies.
Original language | English |
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Article number | 04019069 |
Number of pages | 20 |
Journal | International Journal of Geomechanics |
Volume | 19 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Jul 2019 |