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The assessment of the strength of rocks and other materials using direct methods is achieved through their destruction. However, this approach is unacceptable for real objects, such as pillars and roofs of underground excavations, tunnel linings and the surrounding rock mass, construction sites and other analogous objects. Currently, work is underway on the development of methods of non-destructive evaluation of the strength and life of rocks around mine workings and underground structures for various purposes, which is necessary to ensure a high level of security for the personnel, security of facilities, and safety of the environment. These methods are indirect and use the regression relationship between the strength and other physical properties and characteristics, such as the speed of longitudinal and transverse elastic waves. They were described in papers by Kashnikov et al. (2017), Matin et al. (2017), Renner et al. (2000), and others.

international journal of mining science

Features and the Ability to Replace the Interdependencies between the Acoustic Quality Factor and the Strength of Limestone under the Influence of Different Physical Nature