采用谐波比值法的路基碾压实时检测技术研究

在依靠理论研究的基础上利用压实度和振动频率间的正比关系,对压实度进行实时连续检测。结合高速公路建设中现场试验抽取的两种砂砾土压实度与加速度谐波比之间的关系表达式;通过回归探索发现了压实度谐波比的有效值等式和土体粒料组成的联系。探索结论可以直接使用到各等级公路路基基床压实检测工序中去,并且能够使压实检测工作提高效率,减少工序间隔时间,而且有助于在过程中进行压实度质量控制,在公路施工建设领域有着重要的意义。

Research on Real-time Monitoring Technology of Subgrade Compactness Based on Harmonic Ratio Method

Depending on the basis of theoretical research,this paper uses the proportional relationship between compactness and vibration frequency to carry out real-time continuously detection for compactness.The relationship between the compactness of two kinds of gravel soil and the harmonic ratio of acceleration is expressed in combination with the field test of expressway construction.Through regression and exploration,the relationship between the effective value equation of the harmonic ratio of the compactness and the composition of soil particles is found.The exploration conclusion can be directly used in the compaction detection process of subgrade bed of each grade of highway,and can improve the efficiency of compactness detection,reduce the process interval time,and promote to control the compactness in the process,which is of great significance in the field of highway construction.