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ELK CREEK QUARRY <br />ROCK MASS CLASSIFICATION EVALUATION <br />ALH <br />7127/2004 <br />t. RGD <br />(Estimated - No Core Data) <br />2. RMR <br />UPPER WEATHERED ROCK <br />VERY POOR TO POOR <br />(SAY VERY POOR) <br />Al 2 (5.25 MPa) <br />2 3 (<25°k) <br />3 8 (60.200mm) <br />4 10 (Discontinuity Condi0on) <br />5 15 (Dry) <br />B 0 Very Favorable/Slopes <br />C 38 Class IV (Poor Rock) <br />D 25 EsBmated Frlctlon Angle <br />3. Q' <br />ROD 15 <br />Jn 17 <br />Jr 3 <br />Ja 4 <br />Jw 1 <br />SRF 1 <br />O' 0.66 (Very Poor) <br />4. GSI 95 Disirltegratetl to BloekylDiaturbed w/ <br /> Very Poor <br /> 33 (Check; RMR-5) <br />GENERAL ROCK <br />POOR TO GOOD <br />(SAY FAIR) <br />7 (50.100 MPa) <br />13 (50-75%) <br />10 (200~600mm) <br />25 (Discontinuity Condition) <br />75 (Dry) <br />0 Very FavorablelSlopes <br />70 Class IV (Good Rock) <br />40 Estimated Frtetlon Angle <br />70 <br />10 <br />3 <br />2 <br />1 <br />1 <br />'10.50 (Fair to Good Rock) <br />BS Very Blocky w/Good-to FaV <br />65 (Cheek; RMR-5) <br />