Research Article

Study on Mechanism and Main Influencing Factors of Rockburst under Complex Conditions of Hard and Deep Overburden

Table 5

Judgment matrix of influencing factors (zone I).

CCoal seam burial depthSandstone layer thicknessRoadway layoutExcavation strength

Coal seam burial depth111/21/3
Sandstone layer thickness111/21/3
Roadway layout2211/2
Excavation strength3321