摘要
桩基础在工程建设中得到了广泛应用,从安全性上考虑,对群桩抗拔承载力的研究尤为重要。根据Plaxis3D Foundation模拟结果,分析了在上拔荷载作用下桩数、桩距及桩长对群桩上拔位移的影响。模拟结果表明,桩长对群桩效应系数几乎没有影响;桩距越小,桩间土体的位移越大;桩数、桩间距是影响群桩抗拔承载力的主要因素。
Abstract： Pile foundations are widely applied in many projects. It is especially important to study the anti- pulling bearing capacity of pile foundations from the viewpoint of security. According to the results of Plaxis 3D Foundation, the influence of pile amount, pile spacing and pile length on the vertical displacement of group piles under uplift loading is analyzed. The simulation shows that the pile length had no effect on the pile group effect coefficient. The smaller the pile spacing is, the bigger the soil displacement will be. The pile amount and pile spacing are the main factors influencing on the anti-pulling bearing capacity of the pile-group foundation.
出处
《苏州科技学院学报（工程技术版）》
CAS
2013年第2期36-40,共5页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
关键词
上拔荷载
群桩效应
侧阻力
有限元
uplift loading
effect of pile group
side resistance
finite element method
