摘要
为研究自升式平台桩靴在黏土场地中的极限承载力,建立Abaqus桩靴-土模型,采用任意拉格朗日-欧拉(Arbitrary Lagrangian-Eulerian,ALE)方法对桩靴的贯入过程进行模拟,提出大值法、中值法、小值法等3种数据处理方法,并拟合桩靴承载力估算公式。将模拟计算结果与SNAME规范公式计算结果进行对比分析,对比结果证明ALE方法模拟桩靴贯入的可行性。为提高工程的安全性,提出对SNAME公式计算结果进行折减的具体公式,以使其与ALE小值法处理结果更吻合。
In order to study the ultimate bearing capacity of jack-up platform pile boot in the clay,the Abaqus pile boot-soil model is established,and the penetration process of the pile boot is simulated by Arbitrary Lagrangian-Eulerian(ALE)method.Three data processing methods of large-value method,middle-value method and small-value method are put forward,and the formulae for estimating the bearing capacity of pile boot are fitted.The simulation results are compared with those of the SNAME formula,and the feasibility of ALE method to simulate the penetration of the pile boot is proved.Considering the safety of the practical engineering,in order to modify the calculation result of SNAME formula and make it more consistent with that of ALE small-value method,a reduction method is proposed for the calculation formula of SNAME.
作者
冯士伦
陈晓桐
王进
FENG Shilun;CHEN Xiaotong;WANG Jin(Schoolof Civil Engineering,Tianjin University,Tianjin 300072,China;China Civil Engineering Construction Corporation,Beijing 100038,China)
出处
《中国海洋平台》
2023年第5期7-11,共5页
China offshore Platform
基金
国家自然科学基金(编号:52078336)。
