Application of Continuous Wavelet Transform in Analysis of Pile Integrality
Wu Yu · Mining and Metallurgical Engineering · 2006
The analysis method for pile integrality based on 1-D continuous wavelet transform is to make a multi-scale continuous wavelet decomposition of the stress wave signal and determine the position of singular point according to local modular maximum line.Then,the positions of the incident wave,pile-toe reflection wave and flaw reflection wave can be determined by the position of singular point. Adopting the method can realize a more accurate analysis on the test data to reduce the potential error,which is caused by reading the original signal directly.The examples of analyses of signals of the tested piles indicate that the application of continuous wavelet transform in pile integrality test is effective.