Experimental study on the effect of temperature on marine clay consolidation with vertical sand drains

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.

Keywords:

• Ground improvement
• thermal drainage consolidation
• consolidation rate
• surface settlement

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This research was substantially supported by the Natural Science Foundation of China (51608385), the Natural Science Foundation of Ningbo (2018A610430), the Natural Science Foundation of Zhejiang Province (LY19E080012) and the China Scholarship Council (201706260252).