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在计算建筑物的沉降时,通常多采用一维压缩的计算方法,假设地基土在建筑物的附则荷载下不发生侧向变形。这是不符合实际情况的。现已普遍认识到,除非基础下的可压缩土层相当薄,在一般情况下都应该考虑三维的变形条件。本文在介绍现有的各种三继沉降计算方法的基础上,提出两种方法。它们都从弹性理论出发,一种方法根据其基本的应力应变公式,另一种则基于位移的解答。两者结果是一致的,并且均与实测情况基本相符,为了便于计算,文中已将这两个方法需用的各种系数编制成表,以备查用。另外还编有电子计算机计算程序,可以直接用来进行计算。
In the calculation of the settlement of buildings, usually one-dimensional compression calculation method is used, assuming that the foundation soil in the annex under the load does not occur lateral deformation. This is not in line with the actual situation. It is now generally accepted that unless the compressible foundation is relatively thin, three-dimensional deformation conditions should generally be considered. In this paper, we introduce two kinds of methods based on the existing methods of calculating the settlement of Sanji. They are all based on the theory of elasticity, one based on its basic stress-strain formula and the other based on displacement solutions. Both results are consistent, and are basically in line with the measured situation, in order to facilitate the calculation, the article has prepared the various coefficients required for these two methods into a table for future reference. In addition there are also compiled computer program can be used directly for calculation.