Controlling Effect of Fault Structural Styles on Aquifer Water Abundance for Panxie Mining Area, Huainan, China

Abstract

According to the hydrogeological conditions, dynamic characteristics of tectonic deformation and geometric features, the fault structures in the Panxie mining area were divided into seven types respectively were horst, graben, graben-horst combination, forward (reverse) thrust structure, imbricate thrust structure, strike-slip structure, and others. Meanwhile, the q-structural styles boxplot had been constructed to analyze the water abundance of the karst formation aquifer. It has been verified via the practical drilling core data. The final results were that the water-rich characteristics of the deep karst water controlled by the seven structural styles were different. The water abundance of graben-horst combination structure was strongest; the next was the horst in deep which was stronger than the graben. Then, the imbricate thrust structure, strike-slip fault, and other structural styles had low water abundance in deep karst aquifer. The results can be aimed at different structural styles to guide the prevention and control of karst water hazards on the floor of Group A coal mining.