某护岸软土地基塑料排水板堆载预压监测及分析

[目的] 为研究塑料排水板堆载预压法处理软弱地基，当地基整体滑移失稳前，地基土的变形特征和所处状态。 [方法] 通过对某护岸软土地基整体滑移前的地基孔隙水压力、地表水平位移、地基土深层水平位移、地表沉降监测资料综合分析和研究。 [结果] 结果表明：地基失稳前，孔压消散率远未达到70%，而再次进行了加载；每级加载厚度过大，水平位移速率达20 mm/d，超过控制值4倍；地表沉降速率增大明显，发生突变。 [结论] 该案例数据分析，可为具有相同或类似条件的软土地基加固处理采用塑料排水板堆载预压法提供技术支持和宝贵经验。

Monitoring and Analysis of Plastic Drain Plate Preloading Method for Soft Foundation of a Revetment

[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.