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Table 1 Geomechanical classification of rock mass of Eyvashan dam based on RMR system

From: An Investigation on performance of the cut off wall and numerical analysis of seepage and pore water pressure of Eyvashan earth dam

Parameter Description or value Points
Uniaxial compressive strength (MPa) 9.5 2
RQD 90 > 20
Distance (m) No joint 20
Condition joint 30
Underground water conditions Rock mass without water 15
Adjustment for layering and joints relative to the very loading surface Very good 0
Rock mass class Very good 87