英文篇名
THEORIES OF EARTH PRESSURE IN LIMIT EQUILIBRIUM
作者
陳榮河
關鍵字
土壓力、擋土牆、破壞面、極限平衡
摘要
本文介紹四種極限平衡狀態之土壓力理論,即Rankine、Boussinesq、Coulomb、及Prandtl,除了將各理論之假設及適用範圍加以闡述外,並將各理論所推導得之土壓力分佈、土壓力方向、破壞面之幾何形狀等加以說明;所考慮之參數包括:土壤單位重、超載、土壤之剪力強度參數、及牆背之摩擦角等。另外,並比較各法之差異,同時也對土壓力之延伸應用加以說明,以了解土壓力理論應用之廣泛性。
英文摘要
This paper introduces four earth pressure theories in limit equilibrium, I.e., Rankine, Boussinesq, Coulomb, and Prandtl. The assumptions of the theories and their application are described. Besides, from each theory, the developed earth pressure distribution and earth pressure direction, as well as failure surface are introduced. The parameters considered in the theories include the unit weight of soil, surcharge, the shear strength of soil, the friction angle of wall, etc. The differences between these theories are compared. These earth theories can also be extended to other applications, such as the bearing capacity of shallow foundations. Hence, the application of the theories is wide.