【摘要】 目的为了从地质雷达测量数据中定量提取土路基的含水量。方法根据电磁理论和现代信号处理原理,提出了应用小波反射系数估计和层速度估计定量提取土体相对介电常数的方法,应用该方法对陕西本地的土壤介电常数和含水率进行了详细地研究并与实验测试数据相比较。结果小波反射系数估计法和层速度估计法是定量提取填土路基含水率非常有效且实用的方法。结论利用地质雷达结合土体的物理特性,可以实现公路填土路基土体含水量的无损定量检测。更多还原

【Abstract】 Aim To get water content from measurement data of ground-penetrating radar.Methods Extracting relative dielectric constant for soils quantitatively by wavelet reflection coefficient estimation and layer velocity estimation according to electromagnetic theory and principles of modern signal processing.The dielectric constant and water content for local soils of Shaanxi Province were studied carefully and compared with experimental test data.Results The results show that this method is very effective and practical.Conclusion Water content of highway roadbed filling soils can be tested nondestructively and quantitatively using ground-penetrating radar.更多还原