一、前言 弹性地基梁的计算一直沿用着两种不同的基本假定:一是在梁底用一系列相互独立的“土弹簧”来表征地基特征的文克尔假定;另一种是将梁的地基基础视作半无限弹性体的假定。这两种假定的使用都有其局限性。最近又提出了以有限压缩层为基础理论来统一取代这两种假定。以上三种假定 I. INTRODUCTION Two different basic assumptions have been followed in the calculation of elastic foundation beams: one is to use a series of independent “earth springs” at the bottom of the beam to characterize the Wenger’s assumption of the foundation; and the other is to place the beam’s Foundation foundations are semi-infinite elastomers. Both of these hypothetical uses have their limitations. Recently, two kinds of hypotheses have been proposed, which are based on the theory of finite compression layer. The above three assumptions