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N TUCSON SOUTH PROPOSED GRAVEL MINE STABILITY ANALYSIS <br /> TETRA TECH SLOPE STABILITY ANALYSIS CITY OF AURORA WATERLINE <br /> (Pcf) (PSf) V) <br /> Claystone Bedrock Mohr-Coulomb 134 100 28 <br /> (peak strength) <br /> Fill Mohr-Coulomb 126 25 26 <br /> Mud Lens Mohr-Coulomb 126 50 28 <br /> Overburden Mohr-Coulomb 126 50 28 <br /> Sand and Gravel Mohr-Coulomb 137 0 35 <br /> ■ Slurry Wall Mohr-Coulomb 122 0 0 <br /> ■ Weathered Mohr-Coulomb 134 0 14 <br /> 72 ft Claystone Bedrock <br /> City of Aurora (residual strength) <br /> Waterline <br /> Applied Load <br /> for Berm: 200 psf <br /> 4,970 1.79 <br /> 15ft 20ft <br /> 4,960 <br /> 4,950 <br /> 4,940 <br /> LM 4,930 <br /> = 4,920 <br /> 4,910 <br /> 4,900 <br /> 0 20 40 60 80 100 120 140 160 180 <br /> Distance (ft) <br /> Figure 02 - Pseudostatic Analysis <br /> Horizontal Acceleration Coefficient: 0.067g <br />