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NTUCSON SOUTH PROPOSED GRAVEL MINE STABILITY ANALYSIS <br /> TETRA TECH SLOPE STABILITY ANALYSIS - WEST SIDE TUCSON STREET <br /> Color Name Model Unit Cohesion' Phr Piezomelric <br /> Weight (psf) (') Line <br /> (Pcf) <br /> ® Claystone Bedrock Mohr-Coulomb 134 100 28 1 <br /> (peak strength) <br /> ❑ Mud Lens Mohr-Coulomb 126 50 28 1 <br /> ® Overburden Mohr-Coulomb 126 5o 28 1 <br /> Sand and Gravel Mohr-Coulomb 137 0 35 1 <br /> ■ Slurry Wall Mohr-Coulomb 122 0 0 1 <br /> ■ Weathered Claystone Mohr-Coulomb 134 0 14 1 <br /> Bedrock(residual ROW/Utilities <br /> strength) <br /> r13ft <br /> 4,977 .4 35 ft <br /> 1.31 N15ft►�2o 500 PSF applied live load <br /> 4,967 <br /> 4,957 <br /> 4,947 <br /> 4,937 <br /> 4,927 <br /> - <br /> 4,917 <br /> 4,907 <br /> 4,897 <br /> 4,887 <br /> -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 <br /> Distance (ft) <br /> Figure A-2 - Pseudostatic Analysis with Low Phreatic Surface <br /> Horizontal Acceleration Coefficient:0.067g <br />