【作者】 杨德健； 王铁成；

【Author】 YANG De-jian~(1,2) WANG Tie-cheng~1 (1.School of Constructional Engineering,Tianjin University,Tianjin 300072 2.Tianjin Key Lab of Soft Soil Characteristic and Engineering Environment,TI UC,Tianjin,300384)

【机构】 天津大学建筑工程学院； 天津城市建设学院天津市软土特性与工程环境重点实验室；

【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、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。更多还原

【Abstract】 A fundamental theory,simple model and stress analysis method for the double-line pile retaining structure design are introduced.The finite element process ANSYS be compiled to set up the model of double-row pile retaining. By analyzing the effects of the distance,pile rigidity,distance of between piles,and other factors on the deformation and bending moment of the structure.Some reliable conclusions for engineering are obtained.With the effective co-operation of double-line piles and soil,the double-line piles retaining structure can confine side direction deformation effectively, the double-line pile retaining structure has strong lateral rigidity;The performance of loaded of retaining structure be influenced by the distance between two line of piles,so to choose the reasonable distance of two lines of piles is very important.更多还原