论文部分内容阅读
以往对吸力沉箱锚板的抗拔承载力研究多集中在均质土中,并且很少考虑安装过程对承载力的影响.为此采用弹塑性大变形有限元法研究了该类锚板在正常固结黏土中的承载力,并考虑了安装过程对承载力的影响.在大变形分析中采用了RITSS技术,从而可以模拟锚板在土中的大位移过程.研究结果表明,在土体强度梯度k>0.5 kPa/m时,锚板底部与土体可以分开情况得到的承载力系数要低于不可分开情况下的承载力系数.锚板与土分离的条件与均质土中的分离条件基本相同.考虑安装过程得到的承载力要低于预置锚板的承载力.
In the past, the research on the pull-out bearing capacity of suction caisson anchor plate was mostly concentrated in homogeneous soil, and the influence of the installation process on the bearing capacity was seldom considered.For this reason, using large deformation finite element method, Bearing capacity of consolidated clay and considering the influence of installation process on bearing capacity.RITSS technology was adopted in large deformation analysis to simulate the large displacement process of anchor plate in soil.The results show that in the soil strength When the gradient k> 0.5 kPa / m, the bearing capacity coefficient of the bottom of the anchor plate and soil can be lower than the bearing capacity coefficient of the inseparable case. The separation condition between the anchor plate and the soil and the separation conditions in the homogeneous soil Basically the same considering the installation process to get the bearing capacity is lower than the bearing capacity of the anchor board.