Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst

Figure 8

Model illustrating structures formed within overburden and dynamic evolution process of roadway roof stress in the conventional mining method and gob-side entry retaining through precut overhanging hard roof method. (a) The conventional mining method. (b) The gob-side entry retaining through precut overhanging hard roof method.

(a)

(b)