Abstract:In order to quantitatively analyze the scour of bridge foundation, the buried depth detection method of bridge foundation of trenchless river bed is analyzed, and the advantages and disadvantages of the different detection methods are compared firstly. Secondly, the artificial depth scale sounding and multi-beam detection are applied to the detection of buried depth of bridge enlarged foundation. Finally, by comparing the deviation values of the multi-beam detection data and the artificial depth scale sounding data, the operability of the buried depth of bridge enlarged foundation by the multi-beam detection is confirmed. This method can provide reference for the detection of the buried depth of the bridge enlarged foundation.