Capillary water rise may cause subgrade diseases.taking the subgrade soil of a trunk highway in Nantong as the research object,the direct observation test of rising height of capillary water was tested.The effects of dry density,particle distribution and moisture content on rising height of capillary water was explored.The result shows that the two types of soil sample have different moisture content,the rising height of capillary water tends to decrease as the dry density increases,and the rising height of capillary water tends to increase as the fractal dimension of soil particle increases.The soil sample having 10％moisture content increase with cement content and curing age,the inhibition effect of cement solidification on capillary water rise is more obvious.It is recommended that construction of solidification improvement can choose between 8％cement content and 7-day curing age or 6％cement content and 14-day curing age.
关键词
公路路基土/毛细水上升高度/干密度/土颗粒分形维数/改良土水泥掺量
Key words
highway subgrade soil/rising height of capillary water/dry density/fractal dimension of soil particle/cement content of improved soil
维普
万方数据