Engineering Geological Assessment of Diversion Tunnel of Bakhtiari Damsite (Biggest Two-Arch Concrete Dam in Southern Iran)

Table 5

Profile of rock-mass classification in different geological zones of upper diversion tunnel.

Rock unit	SV2	SV3	SV3 Dis	SV2 and SV3	SV4	SV5	SV6	SV5 and SV6 Dis	SV7	F2 fault zone
RQD	80	80	75	75	80	95	80	75	90	65
Description	Good	Good	Good	Good	Good	Excellent	Good	Good	Good	Fair