一、前言在软基上建造各种建筑物,用桩基提高地基承载能力和抗震性能是有效的方法之一。因此,对桩和土的相互作用的研究一直为科技界所重视。尤其是近十几年来,随着近海工程的迅速发展,使这种研究愈感迫切。然而在我国,这方面的工作开展得不多。特别是在动力模型试验方面,除桩和土的相互作用难以精确地模 I. INTRODUCTION It is an effective way to build all kinds of buildings on soft foundation and to improve the bearing capacity and seismic performance of foundations by pile foundation. Therefore, the research on the interaction between pile and soil has always been the focus of science and technology. Especially in recent ten years, with the rapid development of offshore engineering, this research is more and more urgent. However, in our country, there is not much work in this area. Especially in dynamic model tests, it is difficult to precisely model the interaction of pile and soil