Debris Flow Impact Pressure Signal Processing by the Wavelet Analysis
Chao Ma · Journal of Sichuan University · 2013
For the prevention and control of engineering design,the magnitude of debris flow impact force is a very important parameter and is difficult to be estimated and measured in the field.To reduce the influence of model scale,debris flow impact force experiment was carried out by large flume and the wavelet analysis was used to de-noise the debris flow impact signal.The results showed that the de-noised debris flow impact signal could be impact pressure of liquid phase slurry by comparing the reconstructed signal with de-noised signal.The analysis of debris flow impact pressure experiment data showed that the coefficient approaches 0.5 in the debris flow impact pressure formula p=Kρfv2.