论文部分内容阅读
粉土属于工程性质不良的土质,作为路基填料压实时存在诸多技术难点。作者从粉土粒度分布特性入手,研究了粒度分布与粉土压实效果的相关性。以分形维数作为表征粉土粒度分布特征的指标,基于最紧密堆积理论,定量分析了粒度分布特征与最大干密度的相关性。提出用粒度分布偏差系数来评价粒度分布对压实效果的影响,并建立了粒度分布偏差系数与最大干密度的关系,根据该结果,通过粒度分布特点即可预估土体能达到的最佳压实效果。
Silt belongs to the poor quality of engineering soil, there are many technical difficulties as compaction of roadbed packing. Based on the characteristics of silt size distribution, the author studied the correlation between particle size distribution and silt compaction. Taking the fractal dimension as an index to characterize the particle size distribution of silt, the correlation between the particle size distribution and the maximum dry density was quantitatively analyzed based on the most compact packing theory. The effect of particle size distribution on the compaction effect was evaluated by using the particle size distribution deviation coefficient. The relationship between the particle size distribution deviation coefficient and the maximum dry density was established. Based on the result, the optimal pressure Real effect.