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以分层碾压和重锤夯实综合处理后的黄土填料高填方路堤为研究对象进行原位沉降变形监测试验,分析高填方路堤的工后沉降变形规律及主要影响因素。试验结果表明:路堤工后总沉降的主体是填方体的沉降,且自下而上各填土层的单位沉降量逐渐增大;填方体各层填土的沉降随时间呈现阶段性增长,最终趋于稳定;填土高度和地形是填方体工后沉降大小的重要影响因素;填方体工后沉降与时间呈对数关系,依此提出填方体工后沉降的预测公式,与实测值吻合较好。
The layered embankment and heavy rammed rammed consolidated embankment of loess high fill embankment were used as the research object to carry out in situ settlement deformation monitoring test and analyze the settlement regularity and main influencing factors of high embankment after construction. The test results show that the main settlement of post-construction embankment is the settlement of fill body, and the unit settlement of each fill layer increases gradually from bottom to top. The settlement of fill in each layer of fill body increases with time , And finally tends to be stable. The fill height and topography are the important factors that influence the size of post-construction settlement. The post-construction settlement has a logarithmic relationship with the time. Based on this, Good agreement with the measured value.