关键词: 群桩, 横向荷载, P-Y曲线

Abstract: This paper presents the research on the behavior of laterally loaded pile group in cohesive soil through model tests and the results are analysed by means of non-dimensional contrast of p-y curves. It shows that the front pile in a row pile may be treated as single pile and the group effect to the rear pile is considered with the reduction coefficient, η. The main factors affecting η,such as pile spacing, depth and loads are thoroughly analyzed in this paper and a formula is proposed. By comparison with data obtained from a site-test, the calculations satisfy the measure-ments. A reference to design on pile foundation concerned is recommended.

Key words: group piles, laterally load, p-y curve