摘要
在高速公路质量检测中 ,路堤土压实度是衡量土方路基重要的质量指标 ,提出了提高压实度计算精度的处理流程 ,应用τ-p变换提取面波 ,获取高信噪比的频散曲线 ,采用瞬态面波反演横波速度 ,提高横波速度计算精度 ,进而计算压实度。用上述方法对商开高速公路振冲压碾效果进行了无损检测 。
In quality inspection of highways, the compactness of earthwork of roadbed is an important quality index for judgment. The present paper has advanced a processing flow to improve accuracy of compactness calculation.Rayleigh wave has been extracted by τ p transform to obtain dispersion curves with high Signal to Noise. Shear velocity is then inversed by instantaneous Rayleigh wave to improve the accuracy of calculating velocity and compactness.The results of non destructive inspection to the effect of compacting Shangkai highway accord with those of sampling analysis and excavation.
出处
《地质科技情报》
EI
CAS
CSCD
北大核心
2001年第2期100-102,共3页
Geological Science and Technology Information
基金
国土资源部工程地球物理开发研究实验室基金资助项目
