The Application of Deconvolution in Low Strain Integrity Testing of the Pile
Yuan Da-qi · Building Science · 2009
Deconvolution is one of the methods of seismic exploration engineering,which has been used in the reflectivity sequences extraction widely,but it is used in detecting of pile integrity hardly.In this thesis,we try to use the method of deconvolution to detect the integrity of piles,which is based on the similarity of each other.First of all,the ANSYS/LS-DYNA software is used to establish different kinds of piles with one or more defects which include isolation,diameter-enlarged,diameter-reduced,break and silt mud,then the time history curves are taken out through the low strain integrity testing of the pile.After analysis of the curves by the deconvolution method,it gives out the position and the style of defect.It confirms the exactitude and applicability of the deconvolution,and brings out one new method of the integrity testing of the pile.