Audiometric Location of Lost Boreholes in Mine Workings
In mining practice, it is often necessary to drill holes from the surface to an underground working, or between two underground workings. Such boreholes may, for example, be used to pump gas from gas-bearing coal seams to the surface, or to connect two underground workings before cutting a crosscut; or they may be bored throughout the depth of a level as an efficient and widely used precaution when cutting coal in seams prone to rock bursts, and so on.
KeywordsSound Source Rock Burst Mine Working Underground Working Roof Rock
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