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TUCSON SOUTH PROPOSED GRAVEL MINE STABILITY ANALYSIS <br /> SLOPE STABILITY ANALYSIS - PIPELINE (NORTH SIDE OF EAST CELL) <br /> TETRA TECH <br /> (pcf) (psf) C <br /> Claystone Bedrock Mohr-Coulomb 134 100 28 <br /> (peak strength) <br /> Fill Mohr-Coulomb 126 25 26 <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 35 ft pipeline Easement <br /> Claystone Bedrock I�20 ft 15 ft 20 ft� <br /> (residual strength) 1.37 Pipeline <br /> 4,967 <br /> 4,957 <br /> 4,937 <br /> 4,927 <br /> 4,917 <br /> 4,907_ - - - - . . ... . . . . . . . . .. . . . . . . . . . . . . . . . . . . ._._. . - - - . ._. <br /> 4,897 <br /> 4,887 <br /> 4,877 <br /> 4,867 <br /> -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 <br /> Distance (ft) <br /> Figure D-2 - Pseudostatic Analysis <br /> Horizontal Acceleration Coefficient: 0.067g <br />