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The elastic wave CT method is also called as seismic tomography method, which is an emerging and widely used engineering geophysical exploration method. This method uses the difference of the propagation velocity of elastic wave in different media to inverse the data of travel time of the elastic waves between the holes measured in the field and obtain the two-dimensional and three-dimensional image of construction, lithology distribution and cataclastic degree of the tested geologic bodies, which is mainly aimed at determining the spatial distribution features of the underground geological bodies. This paper describes the principle of elastic wave CT method, and applies it to engineering cases of rock mass integrity test and karst grouting test; the analysis indicates that the method has a high resolution, intuitive test results, accurate positioning and broad application prospect, which can also meet the requirements of exploration, testing and monitoring and high precision in the geotechnical engineering and environmental engineering.

Application for Elastic Wave CT in Rock Mass Integrity and Karst Grouting Quality Test