水利堤顶公路压实度的快速检测

Rapid detection of compaction degree of hydraulic embankment

为了研究水利堤顶公路压实度的快速检测方法,结合土的半无限弹性体理论,以回弹模量作为土基抗压强度的指标,介绍便携式落锤弯沉仪(PFWD)和落球式岩土力学特性检测仪(SEH-FBT)快速检测法。通过实验室实验和现场实践相结合,测得试验数据,并且同时与环刀法测得压实度相对比,用SPSS软件将数据进行拟合,建立相关关系。结果表明:PFWD和SEHFBT以及环刀检测的数据之间存在很强的相关性,可以建立非线性回归方程作为工程评价依据。

To study the reasonable rapid detection method,combined with the semi-infinite elastic body theory of soil,the elastic modulus can be used as the index of compressive strength of soil,so the Portable Falling Weight( PFWD) and Falling Ball Tester for Mechanical Properties of Geo-material( SEH-FBT) rapid detection method are introduced. Through the combination of laboratory experiment and field practice, the detection data were measured,and the relative ratio was detected by ring knife method. The data were fitted by SPSS software,and the correlation was established. The results show that there is a strong correlation between the PFWD and the fallingball method and the data detected by the ring-knife method,and the regression equation can be established as the basis for engineering evaluation.