摘要
分析了黄河冲积粉砂土的自身物理力学与压实性能 ,通过可塑性试验、级配分析、击实试验和压缩性试验 ,指出液、塑限和塑性指数不宜作为评判黄泛区粉砂土工程性质的标准 ,空气体积率作为该类土的压实控制标准比压实度更为合理 ,建议取消路基 90区压实度标准 ,把下路堤压实度提高到 93% ,上路床提高到 98% .
The physical and mechanical properties and the compacting capability of the Yellow River silt were analysed, and the plasticity tests, grading analysis and compression test were done. As a result, it is unfit for liquid limit, plastic limit and plastic index to be used to judge the engineering properties of the Yellow River silt. Volume ratio of air is more appropriate than compactness to become the compacting contro criterion of roadbed. It is suggested to abolish the criterion that the compactness of lower road embankment must reach to 90%, to increase the compactness of the upper road bed and the lower road embankment to 98% and 93% respectively.
出处
《山东大学学报（工学版）》
CAS
2003年第5期589-592,共4页
Journal of Shandong University（Engineering Science）
关键词
可塑性
级配
空气体积率
压实
黄河
中积粉砂土
plasticity
gradation
volume ratio of air
compacting
Yellow River silt
