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改进地基变形计算的症结在于寻求能表示压力和变形关系的新参数。土是非线性变形材料,目前所用压缩模量和变形模量都不能准确地反映土的非线性变形特性。 国内外大量资料已经证实:用压缩模量很难解决地基变形计算问题。斯开普敦和贝伦(Skempton,A.W.and L.Bjerrum) 等提出用压缩模置计算压缩变形时应乘以修正系数,我国《工业与民用建筑地基基础设计规范》,(TJ7-74)也规定沉降计算应乘以经验系数m_s。这些系数变化幅度都比较大,而且它们所依
The crux of improving ground deformation calculations is to find new parameters that can express the relationship between pressure and deformation. Soil is a nonlinear deformation material, and the compressive modulus and deformation modulus currently used cannot accurately reflect the nonlinear deformation characteristics of soil. A large amount of data at home and abroad have confirmed that it is difficult to solve the problem of ground deformation calculation with compression modulus. Capekton and Belton (Akand L.Bjerrum) proposed that the compression factor should be multiplied by the correction coefficient when calculating the compression model. China’s “Industrial and Civil Building Foundation Design Standards” (TJ7-74) also The prescribed settlement calculation shall be multiplied by the empirical coefficient m_s. The coefficient changes are relatively large, and they are based on