鉛直力を受ける模型群杭の水平挙動性状に関する理論的考察

抄録

In previous papers (1988, 1989), an analytical method for the lateral behaviors of single piles and pile groups up to failure under combined loads was proposed by Tominaga. The 'analysis is derived from using the method of incremental lateral displacement, and takes account of additional moment caused by vertical forces, shear failure of the soil located in front of the piles, and the reduction of pile flexural rigidity at high stress levels. On the other hand, the model tests were carried out by using the apparatus which was devised to apply simultaneous vertical and lateral loads to the piles under the condition of fixed head, and these results were also presented in other paper (1988). In this paper, in order to verify the validity of the theory proposed, the theoretical results for the lateral behaviors of pile-soil system to failure are compared with those from the model tests. Consequently, it is found that the theoretical analysis is in fairely satisfactory agreement with the measurements of the pile deflections, moments, head reactions, and so on.