摘要
由于"m"法计算桩基时未考虑桩侧土摩阻力,为研究桩侧土摩阻力对长短组合桩基础桩基轴力分布的影响,以港珠澳大桥浅水区非通航孔桥桩基础为例开展分析,采用Midas有限元软件建立模型进行计算分析,模型中采用多折线弹簧模拟桩侧土摩阻力。结果表明,桩侧土摩阻力对长短组合桩基础桩基轴力影响较大,计算方法对桩基设计及工程造价控制具有重要意义。
The research analyzed axial force distribution of composite foundations with long and short piles which was influenced with pile lateral soil resistance based on the Hong Kong-Zhuhai-Macao Bridge.The finite element model of the bridge was established by Midas,and lateral friction which affected pile foundations was simulated by more line spring for lateral friction.Results showed that lateral friction had great influence on axial force of composite foundations with long and short piles.Finite element analysis should be done to analyze axial force of composite foundations when the pile lengths of pile foundations were different.This method can provide some reference for the design and construction of pile foundations.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第5期101-105,共5页
Journal of Wuhan University of Technology
基金
高等学校博士学科点专项科研基金(博导类)(20110143110016)
湖北省自然科学基金(2013CFA049)
关键词
港珠澳大桥
长短组合桩
M法
有限元
桩侧土摩阻力
Hong Kong-Zhuhai-Macao bridge
composite foundations with long and short piles
mmethod
finite element method
lateral friction of pile
