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本文结合国内外有关规范等对加层地基承载力的论述,介绍了在建筑物荷载作用下如何确定地基承载力的几种方法。并以长春市区地基土的工程特性为基础,分析了地基土在建筑物荷载作用下固结沉降的机理,从土的抗剪强度的变化,探讨确定地基土承载力的提高系数,并提出计算方法。最后用该方法进行了实例计算。
In this paper, based on the domestic and international relevant norms on the bearing capacity of superimposed ground, describes how to determine the bearing capacity of the foundation under the load of several methods. Based on the engineering characteristics of foundation soil in Changchun urban area, the mechanism of consolidation and settlement of foundation soil under load of buildings is analyzed. The improvement coefficient of bearing capacity of foundation soil is discussed from the change of shear strength of soil. Calculation method. Finally, this method is used to calculate the examples.