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 6950,Section D.3+95 to 7+00 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set1(Primary 1)----------------------------------------------- 354 -----73--------------------------------330------------��----------50----------8—---- Set 1(Primary 1) ------------------------ Set 2(Primary 2)----------------------------------------------- 276 ------73--------------------------------260-----------300---------65----------85- Set2(Primary ------------------------ ---- Set 3(Secondary 1)-------------------------------------------- 320--------- 68----------------NW------------310-----------330---------60----------75----- ---------------------- ------------------------ Set 4(Secondary 2) ISet 5(Foliation) 211 34 SSW 150 340 5 85 Estimated Strength of Intact Rock Material: Designation: Compressive Strength Range Estimated in Field VeryVery High(15)------------------------------->250 Mpa(>36,260 psi) High 15) ---------------------------------------------------------------------------------------------------------------- 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 X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Very Poor Quality(3) <25% Spacing of Discontinuities Set 1 Set 2 Set 3 Set 4 Set 5 VeryVery Wide(20) ------------------------------>2m(>6.5 ft) ------------ -------------------------------------------------------------------------------------------------------------------------------- Wide(15)--------------------------------------0.6_2 m(2_6.5 ft) -------------------------------------------------------------------------------------------------------------- Moderate(10)-------------------------------200-600 mm(8-24 in)--------------------------X --------X--------------- X--------------------------- X ------------------ ----------------- ----------------- ----------- Close(8)--------------------------------------60_200 mm(2.4-8 in) ------X-------------------X---------------X-------------------------- X ---------- ------------------------------------ ------------------ Very Close(5) <60mm(<2.4 in) GEI Consultants,Inc 15 of 122 Appendix C.2 November 2020