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TUCSON SOUTH PROPOSED GRAVEL MINE STABILITY ANALYSIS <br /> TETRA TECH SLOPE STABILITY ANALYSIS - HIGHWAY 7 FROM SOUTH CELL <br /> (PO (psf) (°) <br /> El 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 /> ■ Weathered Mohr-Coulomb 134 0 14 <br /> Claystone Bedrock <br /> 1.0 86 ft (residual strength) <br /> Power Pole <br /> Applied Applied Load <br /> Live Load: 500 psf for Berm:200 psf <br /> 2.72 <br /> screening Berm w 20 ft <br /> 4,968 I 1� � <br /> 4,958 <br /> 4,948 -----• <br /> 4,938 <br /> 4,928 <br /> 4,918 -- <br /> 4,908 - <br /> = 4,898 <br /> 4,888 <br /> 4,878 <br /> 4,868 <br /> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 <br /> Distance (ft) <br /> Figure 1-1 - Static Analysis with High Phreatic Surface <br />