Feature Study Of Elastic Wave’s Attribute For The Grouting Plumpness Of The Prestressed Channel

Because of the use of high-strength material in the prestressed concrete structure, itcan not only save a lot of steel and concrete but also enhance the structure’s rigidityand durability; Due to this, it has been widely used in the whole infrastructure of ourcountry, but the corrosion of the steel wire is especially pronounced. After years ofdomestic and foreign researchers’ theoretical research and field testing, NDT of thegrouting plumpness in the prestressed channel has been made a lot of valuabletheoretical results and experimental experience; But research in this area has not muchsubstantial progress under now the limited factors of the test equipment and technicallevel and lacking of appropriate technical regulationsThis article describes the construction process of channel filling firstly, andanalyses the types of grouting disease and the causes，then provides a realistic basisfor the simulation of the disease after the channel grouted; After that it analyses andsummarizes the applications of the properties of elastic wave in practical engineeringthrough analyzing and studying these applications, provides practical foundation forthe establishment of evaluation theory of elastic wave properties; it studies thebroadcasting law under the different conditions of plumpness by using the numericalsimulation technology,and then finds the attribute parameters of elastic wave whatare correlated with the fullness, verifies the results through the solid physicalmodel,lastly uses them for the detection of the plumpness.The application of seismic attribute has been very mature in the field of oilexploration however the elastic wave attribute has much limit in the field of NDT ofthe traffic construction and has no substantive progress recent years; This articleapplies the application of seismic attribute to elastic wave from the technical ideas ofgeophysical exploration based on the study of a large number of seismic attribute dateand finds the new thinking for the detection of grouting plumpness of the prestressedchannel.