文章论述了作为高速公路路基淤泥层的力学特性,变形性具有高塑性的特点,次固结效应明显,强度指标低。上述特点的产生主要是由该淤泥有机质含量高、孔隙多而且大和高含水率决定的。路基的沉降变形、固结过程和承载力计算可直接提供给设计参考。 The article discusses the mechanical properties of the silt layer as a subgrade of expressways. The deformability is characterized by high plasticity, the secondary consolidation effect is obvious, and the strength index is low. The above characteristics are mainly caused by the high content of organic matter in the sludge, the large porosity and large and high moisture content. The subsidence deformation, consolidation process and bearing capacity calculation of the subgrade can be directly provided to the design reference.