Study and Application on Stability Classification of Tunnel Surrounding Rock Based on Uncertainty Measure Theory

Table 2

Survey statistics table of surrounding rock.

Section	Stability evaluation index
		40.0	25.0	0.28	0.35	35.0
	70.5	40.5	0.43	0.55	15.5
	40.5	20.0	0.25	0.30	30.0
	72.0	50.0	0.55	0.55	20.0
	20.0	50.0	0.23	0.51	13.0