摘要
桩基础平台在沿海软土地基中应用广泛。对某不规则桩基平台进行数值模拟,利用ANSYS有限元分析软件对某一大平台工程进行三维有限元建模,选取合适的接触模型模拟桩-土相互作用,在施加设计荷载后对模型进行整体运算。结果表明,模型中大部分桩体在桩-土相互作用下其桩节点高程12.5 m附近摩阻应力达到最大,其中少数摩阻应力最大值发生于桩节点高程10或15 m处;各桩桩身摩阻应力沿着水平荷载合力方向不断增加。
Pile foundation platform is widely used in coastal soft soil foundation.We carry out the numerical simulation of an irregular pile foundation platform,firstly establish the three-dimensional finite element model of a large platform project by using ANSYS finite element analysis software,select a suitable contact model to simulate the interaction of pile and soil,and carry out the whole operation of the model after applying the design load.The results show that in the model,the maximum friction stress near the height of the pile height 12.5 m is reached under the pile-soil interaction,and the maximum of the few friction stresses occurs at the height of 10 m or15 m at the pile height.The frictional stress of piles increases continuously along the direction of horizontal load.
作者
庄宁
靳如刚
ZHUANG Ning;JIN Ru-gang(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China)
出处
《水运工程》
北大核心
2019年第12期157-163,共7页
Port & Waterway Engineering
关键词
海岸软土
桩-土作用
不规则桩基
大平台
有限元分析
coastal soft soil
pile-soil interaction
irregular pile foundation
large platform
finite element analysis
