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

Table 1

Table of test results of granite specific energy of chiseling.

Lithology	Sampling range	Number of samples	Impact hammer weight (kg)	High impact hammer falls (m)	(J)		(J)	(cm)	(cm)	(J/cm^3)
Granite	ZK3+306.17	10	4	1	1.5	400	600	3.8	1.23	43.1
	ZK3+135.87	10		1	1.5	400	600	3.8	1.1	47.9
	ZK2+716.52	10		1	1.5	400	600	3.8	1.19	44.5