堤防堤身填筑质量无损检测方法研究与应用

Research and Application on NDT Methods of Dike Levee Filling Quality

根据堤防堤身填筑质量传统检测方法存在的弱点,应用瞬态瑞雷波法对堤防堤身填筑质量进行了无损检测,给出了堤防堤身各测点瑞雷波频散曲线及反演分析结果及堤防堤身填筑材料瑞雷波波速分布及填筑材料的密实性、均匀性。将瞬态瑞雷波法检测结果与现场钻孔取样室内填筑材料干密度试验资料进行对比分析,建立了堤防堤身填筑材料瑞雷波波速与干密度的相关关系,为堤防堤身填筑质量的无损检测提供了一种可行的方法。

As the traditional detection method has weaknesses in dike levee filling quality testing, the study applied transient Rayleigh wave method to take non - destructive testing for levee embankment filling quality, obtained Rayleigh wave dispersion curves and inversion of the dike levee＇s each measuring point, as well as the Rayleigh wave velocity distribution of levee embankment filling material, compactness and uniformity of filling materials, levee and levee foundation touching effect. According to the comparative analysis of transient Rayleigh wave test result and field drilling and sampling indoor dry density experimental data of filling material, the study established correlation between the levee embankment filling material Rayleigh wave velocity and dry density, providing an feasible non- destructive detection method for dike body filling quality.