应用动态圆锥贯入仪快速检测土基压实性能

应用动态圆锥贯入仪现场快速检测了土基贯人度，建立了土基贯入度与贝克曼梁弯沉、承载板静回弹模量、便携式落锤弯沉仪动模量及灌砂法压实度、干密度和含水量之间的相关关系．回归分析结果显示，各相关系数绝对值均大于0．70．这表明动态圆锥贯入仪测试结果与土基设计指标和施工指标之间存在着良好的相关性，可应用于土基压实性能的快速检测和评价．

Rapid testing of compaction properties for soil subgrade with dynamic cone penetrometer

The penetrations of soil subgrade were tested rapidly with dynamic cone penetrometer in the field to create the correlations between the penetrations of soil subgrade and the deflections of Beckmann beam, the static resilient moduli of bearing plate, the dynamic moduli of portable falling weight deflectometer, or the compactnesses, the dry densities and the moistures of sand cone method. The results of regression analysis show that all the absolute values of correlation coefficient are more than 0.70 to indicate the good correlativity existing between the testing results with dynamic cone penetrometer and the design indexes or the construction indexes of soil subgrade. So the dynamic cone penetrometer are applied in the rapid testing and evaluation of compaction properties for soil subgrade.