Geological Composition and Structure of the Filling Zone and Its Water-Resisting Property Evaluation on the Top of Ordovician Limestone
With the gradual increase in mining revlon colorstay lip liner plum depth of coal fields in North China, the threat posed by karstic Ordovician limestone water to the safe stoping of mines is becoming increasingly prominent.Investigating the water-resisting property of the filling zone on the top of the Ordovician limestone provides the key to safe