Abstract: Acoustic Emission (AE) and Computerized Tomography (CT) scanning are important means to monitor the coal and rock fracture propagation. The paper reviews the development of AE and CT tests and their application in coal and rock field. In light of the advantages of AE and CT scanning tests, it is proposed to jointly use AE and CT in the research of coal and rock structure, facilitating an effective combination of the research of coal and rock fracture propagation with the internal fracture change of coal-rock mass, and providing a theoretical basis for the further research of the occurrence mechanism of impact ground pressure in coal mines.

Key words: AE test, CT test, Coal-rock mass, Fracture propagation, Impact ground pressure