A Risk Assessment Method for Rockburst Based on Geodynamic Environment

Table 3

Relationship between λ value and rockburst risk.

The ratio of maximal horizontal main stress to the vertical stress λ	λ<1	1.0≤λ<1.3	1.3≤λ<2.0	λ≥2.0
Risk of rockbursts	Negligible	Slight	Moderate	Serious