砂性土路堤填料毛细水上升试验分析

Experimental Analysis of Capillary Water Rise in Sandy Soil Roadbed Filler

为分析砂性土路基填料的毛细水上升规律,文章依托某高速公路,通过施工现场取样,在了解砂性土样的基本性质后,通过室内试验分析了压实度、温度、含水量对毛细水上升规律的影响。结果表明:压实度对毛细水上升高度的影响较大,随压实度增加,砂性土毛细水上升高度也随之增加,路基压实度应高于95%;环境温度对其影响较小,随温度升高毛细水上升高度略有增加;含水量对毛细水影响较显著,随含水量的增加,毛细水明显下降,路基填料含水量应控制在9%~10%。

In order to analyze the capillary water rise pattern of sandy soil roadbed fillers,relying on a certain expressway,and samples were taken at the construction site.After understanding the basic properties of sandy soil samples,the effects of compaction,temperature,and moisture content on the rise of capillary water were analyzed through indoor experiments.The results show that the compaction degree has a significant impact on the rising height of capillary water.As the compaction degree increases,the rising height of capillary water in sandy soil also increases.The compaction degree of the roadbed should be higher than 95%.The impact of environmental temperature is relatively small,with a slight increase in the height of capillary water as the temperature increases.The moisture content has a significant impact on capillary water.As the moisture content increases,the rising height of capillary water decreases significantly.The moisture content of roadbed filler should be controlled at 9%~10%.