2020-11-05_REVISION - M1973021 (16)

Home Browse Search

Morrison Quarry AM-07 Geotechnical Stability Exhibit DRMS Permit M-1973-021 Aggregate Industries WCR Inc South Quarry Morrison Quarry,Bench 7033,Section B,1+00-3+20 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set 1(Primary 1) 173 85 S 330 190 85 90 -------------------------------------- -------------------------------------------------------------------------------------------------------------- Set 2(Primary 2) 78 83 ENE 75 80 80 85 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 3(Secondary 1) 90 45 E 90 90 45 45 ---- - ---- -- -- ------------------- -------------------------------------------------------------------------------------------------------------- Set 4(Secondary 2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 5(Foliation) 290 30 WNW 220 340 5 10 Estimated Strength of Intact Rock Material: Designation: Compressive Strength Range Estimated in Field Very High(15) >250 Mpa(>36,260 psi) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- High(12) 100-250 Mpa(14,500-36,260 psi) X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Medium High(7) 50-100 Mpa(7,250-14,500 psi) X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Moderate(4) 25-50 Mpa(3,625-7,250 psi) Low(2) --------------------- 5-25 Mpa(725-3,625 psi) -------------------------------------------------------------------------------------------- Very Low(1) 1-5 Mpa(145-725 psi) Estimated Drill Core Quality(RQD) Designation: RQD Percentage Range Estimated in Field Excellent Quality(20) 90-100% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Good Quality(17) 75-90% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Fair Quality(13) 50-75% X Poor Quality(8) 25-50/o ----------------------------------------------------------------------------------------------- --------------------------------------------------------- -- Very Poor Quality(3) <25% Spacing of Discontinuities Set 1 Set 2 Set 3 Set 4 Set 5 Very Wide(20) >2m(>6.5 ft) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 'Wide(15) 0.6-2 m(2-6.5 ft) X X X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Moderate(10) 200-600 mm(8-24 in) X X X X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Close(8) 60-200 mm(2.4-8 in) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Very Close(5) <60mm(<2.4 in) GEI Consultants, Inc. 65 of 122 Appendix C.2 November 2020