壁抗の水平抵抗力の評価法について : 壁抗の水平抵抗に関する研究(その2)

概要

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The reinforced concrete slurry wall is often constructed as pile foundation. The lateral resistence of a pile with rectangular section like this is discussed in this paper. The followings were clarified from the lateral load tests results and analysis. (1) The lateral resistence of a pile with rectangular section in the direction of its short axis, is given by passive resistance, but that in the direction of its long axis, is given by passive resistence and side frictional resistence. We proposed the method for estimating these lateral subgrade reactions which have non-linear characteristics of soil. (2) Non-linear behaviours of laterally loaded pile with rectangular section in both directions of short and long axes of it, can be analyzed as a beam on the multi elastic layers by applying the proposed method for estimating lateral subgrade reactions and flexural rigidity of the pile. (3) The lateral resistence of the pile in the direction of its long axis, can be affected by the shear deformation of the pile and the vertical friction along its sides. These influences on the pile in homogenious soil, were studied by the proposed analytical method in this paper, and it was clarified that those influences could't be neglected, if the ratio of the embedded length of the pile to long side of its section (L/D) was less than 2 under some boundary conditions of its head and tip.
社団法人日本建築学会の論文
1990-05-30