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

Table 7

Results of RMR classification and final results of RMR classification of rock masses along Bakhtiari upper diversion tunnel [5].

Rock units	SV2	SV3	SV3 dis	SV2 and SV3	SV4	SV5	SV6	SV5 and SV6 dis	SV7	F2 fault zone
RMR	75	77	68	61	80	95	77	61	75	61
Description	Good	Good	Good	Good	Good	Very Good	Good	Good	Good	Good
Rock mass class	II	II	II	II	II	I	II	II	II	II