Introduction To study the deformation characteristics and state of soft foundation treated by plastic drainage plate preloading method before the whole foundation slides and becomes unstable.
Method Through the comprehensive analysis and study of the monitoring data of pore water pressure, surface water horizontal displacement, deep horizontal displacement of foundation soil and surface subsidence before the integral sliding of revetment foundation.
Result The results show that the dissipation rate of pore water is far from 70% before the instability of foundation and the load is carried out again. The horizontal displacement rate is 20 mm/d, which is 4 times higher than the control value.
Conclusion The analysis of the case data can provide technical support and valuable experience for the plastic drainage plate preloading method in soft soil foundation reinforcement with the same or similar conditions.
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