Influence of Discontinuities on Rock Failure under Blasting at Shuangjiangkou Hydropower Station

Table 2

Depth of broken rock zone in main powerhouse and main transformer room.

	Pile position (m)	Upstream arch foot (m)	Downstream arch foot (m)	Average (mm)
Main powerhouse	K0 − 30	0.6	0.4	0.5
	K0 + 010K0 + 040	0.6	0.6	0.6
		0.6	0.6	0.6
	K0 + 070	0.8	0.6	0.7
	K0 + 100	0.8	0.6	0.7
Main transformer room	K0 − 30	1.8	1.6	1.7
	K0 + 010	3.4	3.0	3.2
	K0 + 040	2.4	2.4	2.4
	K0 + 070	2.4	2.8	2.6
	K0 + 100	2.4	2.8	2.6