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CV 5263 HW 1 (2018-19) Name: Problem 2: Lateral Earth Pressure Theories For both part 1 and part 2 determine: Magnitude of active resultant force per length of wall Location (height) of the active resultant force from the base of wall Direction (angle above horizontal) of the active resultant force Horizontal component of the active resultant force per length of wall Vertical component of the active resultant force per length of wall . Part 1: Coulomb Theory For the following figure and soil properties assume the Coulomb active lateral soil pressure is applied to the back of the wall. Coulomb theory applies Ho=20, 120 pcf . Frictional surface 35° 6 20° (external friction coefficient) Slip plane 1o +8 B-15 Part 2: Rankine Theory For the following figure and soil properties assume the Rankine active lateral soil pressure is the back of the wall. applied to . Rankine theory applies

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