Abstract
Passive earth pressure tests of a wall were performed in terms of three variations in displacement: when the wall rotates about its bottom, and when the wall rotates about its top, and the wall is translated. The followings are the results obtained through the test. (1) The passive earth pressure is not found to be in agreement with those obtained Coulomb and Terzaghi theories in either method of displacement (2) The moving wall friction angle δ_c, when the total horizontal earth pressure is at its maximum, is lower than the friction angle between sand and wall in either mothod of dieplacement.