Numerical analysis of breaking depth of coal floor caused by mining pressure;

Forecast of water inrush from coal floor based on least square support vector machine;

Combined ANN forecast of water-inrush from coal floor;

Application of similar material simulation in research of coal seam floor failure regularity;

Research of No.9 coal seam floor's fracture regularityin Xiandewang Coal Mine;

Study of hydrochemical characteristics in Karst water of coal seam floor in the Mining District of North Anhui;

Environment isotope determination mode for Karst water under seam floor of Wanbei Mining Area;

Numerical simulation of water inrush law in coal seam floor with cracks and its application to engineering practice;

Research on mining failure features of seam floor;

This paper analyzes on the possibility of adopting the anchor line suspended monorail hoist runway, and designs and develops the hanger of the anchor line suspended monorail hoist runway, which solves the problem of the erection of the monorail hoist runway in the transportation adopting the monorail hoist in the ground coal road stage with the total bolt support.

This paper introduces the application of roofbolt-reinforced corbel beam-metal net-anchorage cable joint supporting technique on ground coal road, including its supporting method, construction technique, mining pressure monitoring and implementing results.