摘要
开展数值模拟,研究了裙式吸力基础在倾斜荷载作用下承载特性,讨论了不同加载点位置以及加载角度对基础承载特性的影响。研究表明,裙式吸力基础抗拔承载力随加载点位置下移,呈现出先增大后减小的趋势;当加载点位于基础顶面以下2/3倍基础高度时,基础抗拔承载力最大。载点位置固定时,基础抗拔承载力随着加载角度的增大逐渐降低;当加载方向为垂直时,基础极限承载力最小。此外,裙式吸力基础转动点的位置随加载角度增加逐渐下移下降。
A 3 D numerical simulation on the bearing capacity of the modified suction caisson（MSC） foundation under inclined loads is carried out. The influence of the loading position and loading angle on the bearing capacity are investigated. Results show that the bearing capacity of the MSC foundation decreases with the increase of the loading angle. The ultimate bearing capacity increases with the height of loading position,then decreases. When the loading locates at two-thirds height of the caisson foundation below the caisson lid,the bearing capacity reaches the maximum value. In addition,it is also found that the rotation center moves downwards with the increase of the loading angle.
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2018年第1期205-211,共7页
Journal of Guangxi University（Natural Science Edition）
基金
国家自然科学基金面上资助项目(51379118)
山东科技大学科研创新团队资助项目(2015KYJH104)
关键词
裙式吸力基础
抗拔承载力
转动点
数值模拟
加载点位置
加载高度
skirted suction caisson
ultimate uplift bearing capacity
rotation center
numerical simulation
loading point position
loading angle
