Method for detecting defects of grouting material structure between fabricated pier and bearing platform

A method for detecting defects of a grouting material structure between a fabricated pier and a bearing platform relates to the technical field of bridge structure detection, and comprises the following steps of: (1) laying an embedded strain gauge; (2) obtaining data of the strain gauge; (3) analyzing the data of the strain gauge, and determining a key detection area 1; (4) determining possible structural defect positions in the non-key detection area by adopting an elastic wave vertical reflection method, and determining a key detection area 2; (5) detecting the key detection area by adopting an ultrasonic tomography technology to obtain detection data; and (6) inverting the obtained data by using an algorithm to obtain the condition of the detected structure. By using the detection method provided by the invention, whether the grouting material structure between the fabricated pier and the bearing platform is stable or not can be known quickly and reliably, and the later safety construction and the reliabi