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地基的变形计算一般采用规范推荐的分层总和法,分层总和法用到一个非常重要的参数Es,即各层土的压缩模量,模量的选取直接关系到计算结果的可靠性。本文通过公式推导及工程实例指出,目前地基设计中存在的一个问题,即常常将模量Es选取为Es_(1-2),没有按照规范要求选取,由此导致了计算变形值远远大于实测值。希望对此问题的提出和进行相关分析,可对工程设计有所提示。
The calculation of the deformation of the foundation is generally based on the stratified summation method recommended by the standard. The stratified summation method uses a very important parameter Es, that is, the compressive modulus of various layers of soil, and the selection of modulus is directly related to the reliability of the calculated result. In this paper, through formula derivation and engineering examples, it is pointed out that one of the problems in the present foundation design is that the modulus Es is often chosen as Es_ (1-2), which is not selected according to the requirements of the code. As a result, the calculated deformation value is much larger than the actual measurement value. I hope this issue can be raised and carried out related analysis, engineering design can be prompted.