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Very Low (6) <br />Low (4) <br />Medium (2) <br />High (1) <br />Very High (0) <br /><1m( <33ft) <br />1 - 3 m (3.3 - 9 9 ft) <br />3- 10m(99 -33ft) <br />10 - 20 m (33 - 66 ft) <br />>20 m ( >66 ft) <br />Discontinuity Persistence <br />Set 1 <br />X <br />X <br />Set 2 Set 3 Set 4 Set 5 <br />X <br />X <br />X <br />X <br />Notes <br />Very Tight Joints (6) <br />Tight Joints (5) <br />Moderately Open Joints (4) <br />Open Joints (1) <br />Very Wide Aperture (0) <br /><0 1 mm (< 0 003 in) <br />01 -05 mm (0003- 002 in) <br />0 5 - 2 5 mm (0 02 - 0 1 in) <br />2 5 - 10 mm (0 1 - 0 4 in) <br />>10mm( >04in) <br />Discontinuity Separation (Aperture) <br />Set 1 Set 2 <br />X <br />X <br />Set 3 <br />X <br />Set 4 Set 5 <br />Very Rough Surfaces (6) VR <br />Rough Surfaces (5) R <br />Slightly Rough Surfaces (3) SR <br />Smooth Surfaces (1) SM <br />Slickensided Surfaces (0) SL <br />Additional Notes <br />Discontinuity Roughness <br />Set 1 <br />SR -R <br />Granitic pegmatite at station 2 +15 (1' thick) dipping 60 N <br />Set 2 <br />SR -R <br />Set 3 <br />SR -R SR -R <br />Set 4 Set 5 <br />Notes <br />Type <br />Thickness <br />Estimated Compressive Strength <br />Seepage none, moist, dripping, etc <br />clay, staining, shear, etc <br />Discontinuity Filling (Gouge) <br />Set 1 <br />FeO <br />Set 2 <br />FeO <br />Set 3 <br />FeO <br />Set 4 Set 5 <br />Unweathered (6) UW <br />Slightly Weathered (5) SW <br />Moderately Weathered (3) MW <br />Highly Weathered (1) HW <br />Completely Weathered (0) CW <br />Residual Soil (0) RS <br />Discontinuity Wall Face Weathering <br />Set 1 Set 2 <br />X <br />X <br />X <br />X <br />Set 3 <br />X <br />X <br />Set 4 Set 5 <br />RMR Classification: <br />31 -52 <br />oft <br />