路基工程中预压地基的工后沉降动态控制沉降速率方法,没有地基固结排水条件和不同性质路段工后沉降控制标准的不同。文章采用基于线性加载固结分析的沉降速率分析方法,考虑了多层土的固结指标均质化和中间透水砂层的水平排水作用,分析了粘性土层与细粉砂层互层结构的沉降速率与工后沉降的关系。提出了不同固结排水条件,宜采用不同沉降速率控制标准的建议,并分析了预压地基中间透水砂层的影响。 There is no difference between the foundation consolidation drainage conditions and the control standards for post-construction settlement in different sections of roadbed. In this paper, the sedimentation rate analysis method based on linear loading consolidation analysis is adopted, the consolidation index consolidation of multi-layered soil and the horizontal drainage effect of the middle permeable sand layer are considered, and the interbedded structure of clay layer and fine silt sand layer Relationship between Sedimentation Rate and Post - construction Settlement. Proposed different consolidation drainage conditions, should adopt different sedimentation rate control standard recommendations, and analyzed the impact of the pre-pressure foundation of the middle permeable sand.