【摘要】：軟土地基上堤壩的沉降計(jì)算一直本是研究的熱點(diǎn)。目前關(guān)于堤壩沉降計(jì)算中采用沉降修正經(jīng)驗(yàn)系數(shù),但合理計(jì)算其沉降難度仍很大。為較好解決地基沉降計(jì)算這一重要難題,通過(guò)探討應(yīng)力歷史和地基土附加應(yīng)力對(duì)地基土變形模量影響,采用分級(jí)加載,提出了堤壩下軟土地基非線性沉降計(jì)算的改進(jìn)分層總和法,該方法不僅反映應(yīng)力歷史和地基土附加應(yīng)力對(duì)變形模量影響,而且反映地基土深度對(duì)其影響,計(jì)算參數(shù)選取也較少。通過(guò)對(duì)某試驗(yàn)堤壩沉降進(jìn)行計(jì)算與分析,并與實(shí)測(cè)結(jié)果進(jìn)行比較,證明該方法效果較好,可較準(zhǔn)確計(jì)算堤壩沉降。
[Abstract]:The settlement calculation of embankment on soft soil foundation has always been a hot topic. At present, the empirical coefficient of settlement correction is used in the calculation of embankment settlement, but it is still very difficult to calculate the settlement reasonably. In order to solve the important problem of foundation settlement calculation, the stress history and the influence of additional stress on the deformation modulus of foundation soil are discussed. An improved stratified summation method for nonlinear settlement calculation of soft soil foundation under dike and dam is presented. This method not only reflects the influence of stress history and additional stress on deformation modulus, but also reflects the influence of soil depth on it, and the selection of calculation parameters is less. Through the calculation and analysis of the settlement of an experimental embankment, and compared with the measured results, it is proved that the method is effective and accurate in calculating the settlement of the embankment.
【作者單位】： 河南工業(yè)和信息化職業(yè)學(xué)院;
【分類號(hào)】：TV223

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1 韓永強(qiáng),魏俊,溫雄;分層總和法計(jì)算地基沉降缺陷的改進(jìn)[J];西安工業(yè)學(xué)院學(xué)報(bào);2005年03期

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