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Morrison Quarry AM-07 Geotechnical Stability Exhibit <br /> DRMS Permit M-1973-021 <br /> Aggregate Industries WCR Inc. <br /> South Quarry Morrison Quarry,Bench 6950,Section A.1+90 to 2+40 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set 1(Primary 1) 168 73 SSE 160 185 70 80 <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set2(Primary 2)------------------------------------------------67-----------------------------83----------------ENE-------------60-------------��----------8------------- ---- <br /> Set 2(Primary 2- <br /> Set 3(Secondary 1) 300 88 WNW 290 310 85 90 <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set4(Secondary 2) ----------------------------------------------------------------------------------------------------------------- <br /> --------------------------------------------------------------------------- <br /> Set 5(Foliation) 355 21 N 330 30 10 40 <br /> Estimated Strength of Intact Rock Material: <br /> Designation: Compressive Strength Range Estimated in Field <br /> VeryVery High(15)------------------------------->250 Mpa(>36_260 psi) <br /> High 15) ---------------------------------------------------------------------------------------------------------------- <br /> High(12) 100-250 Mpa(14,500-36,260 psi) X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Medium High(7) 50-100 Mpa(7,250-14,500 psi) X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Moderate-(4)---------------------------------25.50 Mpa(3.625-7.250 psi)---- <br /> - - - - - ------------------------------------------------------------------------------------------------------- <br /> Low(2)---------------------------------------5-25 Mpa(725-3,625 psi) <br /> --------- -------------------------------------------------------------------------------------------------------------------------------------- <br /> Very Low(1) 1-5 Mpa(145-725 psi) <br /> Estimated Drill Core Quality(RQD) <br /> Designation: RQD Percentage Range Estimated in Field <br /> Excellent Quality(20) 90-100% <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Good Quality(17) 75-90% <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Fair Quality(13) 50-75g'o <br /> Poor Quality(8) 25-50/o X <br /> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Very Poor Quality(3) <25% X <br /> Spacing of Discontinuities <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> Very Wide(20) ------------------------------>2m(>6.5 ft) <br /> ------------------ ---------------------------------------------------------------------------------------------------------------------------- <br /> Wide(15) 0.6-2 m(2-6.5 ft) X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Moderate(10) 200-600 mm(8-24 in) X X X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Close(8)--------------------------------------60.200 mm(2.4-8 in) ------X-------------------X------------------------------------------- X <br /> ---------- ------------------------------------ ------------------ <br /> Very Close(5) <60mm(<2.4 in) X <br /> GEI Consultants, Inc. 9 of 122 Appendix C.2 <br /> November 2020 <br />