Geofluids / 2021 / Article / Tab 1

Research Article

Prediction of Stope Stability Using Variable Weight and Unascertained Measurement Technique

Table 1

Classification criterion of quantitative indices.

Classification standardSaturated uniaxial compressive strength () (MPa)Rock quality designation () (%)Stope span () (m)Groundwater seepage volume () (L·min-1·(10 m)-1)The rate of supporting pit roof () (%)

>200≥90≤10≤5≥70
200~10090~7515~1010~560~70
100~5075~5030~1525~1050~60
50~2550~2550~3050~2535~50
≤25<25>50>50<35

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