某堤坝下软土地基非线性沉降计算的改进分层总和法
发布时间：2018-07-20 18:02
【摘要】：软土地基上堤坝的沉降计算一直本是研究的热点。目前关于堤坝沉降计算中采用沉降修正经验系数,但合理计算其沉降难度仍很大。为较好解决地基沉降计算这一重要难题,通过探讨应力历史和地基土附加应力对地基土变形模量影响,采用分级加载,提出了堤坝下软土地基非线性沉降计算的改进分层总和法,该方法不仅反映应力历史和地基土附加应力对变形模量影响,而且反映地基土深度对其影响,计算参数选取也较少。通过对某试验堤坝沉降进行计算与分析,并与实测结果进行比较,证明该方法效果较好,可较准确计算堤坝沉降。
[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.
【作者单位】： 河南工业和信息化职业学院;
【分类号】：TV223
本文编号：2134319
[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.
【作者单位】： 河南工业和信息化职业学院;
【分类号】：TV223
【相似文献】
相关期刊论文 前3条
1 韩永强,魏俊,温雄;分层总和法计算地基沉降缺陷的改进[J];西安工业学院学报;2005年03期
2 刘仙平,王康林;土堤自身沉降计算方法[J];浙江水利水电专科学校学报;2003年03期
3 ;[J];;年期
，本文编号：2134319
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2134319.html
