杭に働く負摩擦の模型実験と解析

Abstract

In order to clarify the basic characteristics of negative skin friction acting on both single andgroup piles, model tests were made by using a large consolidation soil box. The main results areas follows: (1) The estimation method of the group pile effect was proposed based on the effectivestress concept, and its applicability was confirmed by the test results. (2) Comparison of negativefriction acting on the non-treated and slip-layered piles was made, and the marked reduction of thenegative friction on slip-layered pile was observed. (3) Behaviour of the bending moment and thelateral deflection of a batter pile due to settlement of the surrounding ground was analyzed.