摘要
Abstract
In order to study the pavement performance of mudstone under the condition of dry and wet cycles,the paper conducts experimental research on the variation rules of the pavement performance of mudstone fillers such as disintegration resistance,CBR,shear strength and pore ratio under the condition of multiple dry and wet cycles.The results show that with the increase of dry and wet cycles,the disintegration resist-ance index,expansion rate and porosity ratio of mudstone fillings decrease rapidly at first,then slowly,and then tend to be stable,and the shear strength decreases continuously.The number of initial cycles in the stable section of disintegration resistance index and expansion rate of mudstone fill is 2 times.The pore ratio starts with 100 cycles.The deeper the soil layer,the higher the loading level,the larger the CBR value of the mud filler.The higher the loading level,the lower the expansion rate of mudstone and the lower the pore ratio.关键词
泥岩路基填料/干湿循环/耐崩解度/CBR/孔隙比Key words
Mudstone subgrade fill/Dry and wet cycle/Disintegration resistance/CBR/Void ratio分类
交通工程
