Multifactor Evaluation of Multiple Service Support and Optimization of Working Resistance of New Support Based on Dynamic Pressure

Table 5

Grade parameter vector corresponding grade score.

Grade	Grade interval	Comment	Parameter vector	Grade score
I	90∼100	Excellent	90	0.9
II	80∼90	Good	80	0.8
III	60∼80	General	60	0.6
IV	40∼60	Poor	40	0.4
V	10∼40	Extremely poor	10	0.1