Sensitivity Analysis and Experimental Verification of Bolt Support Parameters Based on Orthogonal Experiment

Table 5

Regression equation coefficients and reliability tests.

Assessment index	Constant	A	B	C	D	E	Goodness of fit	Residual sum of squares
Convergence of surrounding rock surface of the roadway roof	64.23	0.004	0.005	−1.03e−4	−0.003	−0.015	0.966	0.30
Convergence of surrounding rock depth of the roadway roof	35.18	0.001	0.002	−8.24e−5	−0.022	−0.007	0.851	0.26