Correlation Research of TBM Tunnel Rock Mechanical Characteristics, Chiseling Specific Energy, and Abrasion Performance: Case Study of Jiaozhou Bay Subsea Tunnel in Qingdao

Table 6

The multifactor regression analysis model coefficient of abrasion performance.

Dependent variable:
Number	Parameter				sig
1	Constant	7.660	0.989	0.977	0.000
		-0.020			0.000
2	Constant	6.277	0.996	0.993	0.026
		-0.014			0.000
		0.738			0.000