摘要
利用小波变换,根据信号在不同频带内的能量分布差别,提出了相应的“能量-故障”的故障诊断模式识别方法。经采样的信号,通过多分辨分析可以实现对桩中不同缺陷类型的区分,从而为实现桩基完整性检测提供了一个新的信号处理方法。
A new“energy-fault”identifiable method is presentded for integrity detection of piles. This method is based on the energy distribution in different frequency bands and using wavelet transform. The low strain tests are carried out for various model piles with different defects. Through the multiresolution analysis of test signals,different kinds of defects could be identified. Therefore,the wavelet transform paves a new way for the signal process of pile integrity testing.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第11期1735-1738,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
小波变换
桩基检测
多分辨分析
wavelet transform
pile testing
multi-scale analysis
