つまさき版の長さが片持ち梁式擁壁の安定条件に及ぼす影響(第 2 報)

概要

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The stability of the canti-lever type retaining wall is affected by the length of the toe-plate, and it is especially true when overturning condition are in consideration. The effects of the toe-plate length on the base length were evaluated in this paper. The analytical assumptions are : a) The unit weight of the wall is equal to the one of the soil. b) The weight of the toe-plate is negligible. c) The seismic coefficient (Kh) is varied from 0.05 to 0.25. The results obtained here are : 1) The minimum length of the base is determined by the internal friction angle of soil (φ) and the frictional coefficient between soil and the base (μ). And the cases where the length is determined by the overturning condition are clearly distinguished with cases where it is determined by the sliding condition. 2) The ratio of the toe-plate length (B_1) and the base length (B), (=B_1/B), approaches asynptotically to a value 0.33.
東海大学の論文