抄録
This paper proposes an experimental formula to estimate the modulus of horizontal subgrade reaction k to be used in design practice for analyzing the lateral deflection of a pile at the top and the ground surface.In this paper, (1) the relation between the values of deformation modulus measured by different soil investigation methods was obtained from the results of a comparison study, (2) the effect of loading width to the modulus of horizontal subgrade reaction was investigated by the horizontal plate loading tests carried out in test pits, and (3) the influence of deflection of a pile at the top or ground surface to the value k was investigated on the basis of some experimental data of horizontal loading tests. According to those results, the experimental formula to estimate the value k was obtained.
