Abstract Based on a self-designed preloading consolidation model test system with vertical drains, saturated marine soft clay drainage consolidation and thermal drainage consolidation model tests were carried out at room temperature and high temperature, respectively. The variations in the soil temperature, excessive pore water pressure and surface subsidence over time were recorded in the tests. The results showed that thermal drainage consolidation can accelerate the consolidation rate of marine soft clay. Furthermore, the thermal drained consolidation method can increase the final settlement of the surface and enhance the treatment effect of marine soft clay ground.
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