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11 11 ?( it 11 ?1 ?I ?11111111111111111111111111111••/1•••1111111111111111.111111111111111 <br />APPENDIX A: <br />South Quarry, Bench 6820 RMR data <br />Morrison Quarry <br />133-23514-08002 <br />Strike and Dip Orientations: <br />Ave Strike Ave Dip Direction Strike from Strike to Dip from Dip to <br />Set 1 (Vertical) 105 85 SW 100 110 80 90 <br />Set 2 (Vertical) 80 55 SE 75 85 50 60 <br />Set 3 (Horizontal) 285 45 NE 280 290 40 50 <br />Set 4 (Minor) <br />Set 5 Minor <br /> Estimated Strength of Intact Rock Material: <br />Designation: Compressive Strength Range Estimated in Field <br />Very High (15) >250 Mpa (>36,260 psi) <br />High (12) 100-250 Mpa (14,500-36,260 psi) <br />Medium High (7) 50-100 Mpa (7,250-14,500 psi) <br />Moderate (4) 25-50 Mpa (3,625-7,250 psi) <br />Low (2) 5-25 Mpa (725-3,625 psi) 5 - 25 MPA <br />Ve Low 1 1-5 M pa 145-725 psi) <br />Estimated Drill Core Quality (RQD) <br />>esignation: RQD Percentage Range Estimated in Field <br />:xcellent Quality (20) 90-100% <br />3ood Quality (17) 75-90% <br />air Quality (13) 50-75% <br />'oor Quality (8) 25-50% 25 - 50% <br />eery Poor Quality (3) <25% <br />Spacing of Discontinuities <br />Set 1 Set 2 Set 3 Set 4 Set 5 <br />Very Wide (20) >2m (>6.5 ft) <br />Wide (15) 0.6 - 2 m (2 - 6.5 ft) 24-36 in <br />Moderate (10) 200-600 mm (8 - 24 in) <br />Close (8) 60-200 mm (2.4 - 8 in) 2 - 12 in <br />Ve Close 5 <60mm <2.4 in > 1 to 12 in <br />Groundwater Conditions: <br />Liters per 10 m of tunnel length Or Water Pressure <br />iflow (liters per 10 m) NONE Notes: DRY (15) <br />IR Water Pressure Dry, Damp, D