摘要
基于双排桩支护结构设计的基本理论、简化模型及内力计算方法,运用ANSYS有限元分析建立平面应变模型,对双排桩支护结构进行了分析,研究前后排桩排距等因素对围护结构侧向位移及桩身内力的影响。比较分析表明:前排桩、后排桩与桩间土协同作用效果明显,双排支护桩结构具有较大的侧向刚度,可有效地限制围护结构的侧向变形;排距对双排桩支护结构受力影响较大,合理选择排距可获得较好的支护效果。
A fundamental theory,simple model and stress analysis method for the double-row pile retaining structure design are introduced.The finite element software ANSYS was used to set up the model of double-row pile retaining structure.By analyzing the effects of the spacing,pile rigidity and other factors on the deformation and bending moment of the structure,some conclusions were obtained.Through effective co-action of double-row piles and soil,the double-row pile retaining structure has larger lateral stiffness.The performance of pile retaining structure is influenced by the spacing between pile lines,so the spacing should be reasonable.
出处
《工程力学》
EI
CSCD
北大核心
2010年第A02期284-288,共5页
Engineering Mechanics
基金
天津市重点实验室建设项目(06SYSYTC14800)
关键词
双排桩
支护结构
受力分析
影响因素
优化设计
double-row pile
retaining structure
stressed analyses
affected factors
optimum design
