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《Journal of Liaoning Technical University》 1992-03
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Rock Dilatancy and Opening Floor Heave

Kane Hongpu  
Rock dilatancy is closely related to the properties of surrounding strata and stress states. Based on discribing the appearance of rock dilatancy, the formula for calculating the floor heave caused by dilatancy is obtained, Which is suitable for coal mining openings. Applying this formula, the affecting degree to floor heave by dilatancy and the factors related to it are analysed. Finally, at is pointedout that dilatancy is an important reason for floor heaue, and the mechanics controlling rock diatancy by various methods for preventing and controlling floor heave is discussed.
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