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通过具体实例介绍了覆水真空预压法处理海相淤泥质软土地基的施工流程、具体施工工艺和参数。通过对施工期间表层沉降监测数据的分析,表明沉降速率逐渐减小,主固结沉降速率逐渐趋于收敛;结合对施工前后的物理力学指标、静力触探和标准贯入试验的检测数据的对比,表明在覆水真空预压阶段,土体物理力学性质指标得到改善,淤泥得到了很好的排水固结,加固效果明显;最后通过现场载荷板试验,进一步证明了覆水真空预压法处理海相淤泥质软土加固效果显著。
The construction process, concrete construction technology and parameters of seawater soft soil foundation treated by water - in - sea vacuum preloading method are introduced through concrete example. Through the analysis of surface subsidence monitoring data during construction, it shows that the sedimentation rate decreases gradually, and the settlement rate of main consolidation tends to converge gradually. Combined with the physical and mechanical indexes before and after construction, the data of static penetrating test and standard penetration test The results show that the index of physical and mechanical properties of soil is improved and the sludge is well drained and solidified, and the effect of reinforcement is obvious. In the end, the test of on-site load plate further proves that the treatment of sea Phase silt soft soil reinforcement effect is remarkable.