刚-柔性桩复合地基复合模量的一种解析解  

AN ANALYTICAL SOLUTION TO COMPOSITE MODULUS OF COMPOSITE FOUNDATION WITH RIGID-FLEXIBLE PILES

作　　者：朱奎[1] 魏纲[2] 徐日庆[1] 

机构地区：[1]浙江大学软弱土与环境土工教育部重点实验室,浙江杭州310027 [2]浙江大学城市学院工程学院土木工程系,浙江杭州310015

出　　处：《岩石力学与工程学报》2008年第S1期3104-3109,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：浙江省建设厅科研项目(20050568);温州市科技局资助社会发展项目(S2005A013);温州市瓯海区科技局资助社会发展软课题(200522)

摘　　要：基于剪切位移法理论,在一定假设条件下推导刚–柔性桩复合地基复合模量的解析解。该解析解考虑刚性桩及柔性桩桩长、刚性桩及柔性桩模量、土模量以及置换率对刚–柔性桩复合地基复合模量的影响,并定量分析以上参数变化对复合模量的影响程度。工程实例表明,这种方法比传统方法相对要精确,与实际吻合较好,可以在实践中应用。Considering the influences of rigid pile length,flexible pile length,rigid pile modulus,flexible pile modulus,soil modulus and replacement ratio on composite modulus of composite foundation with rigid-flexible piles,composite modulus is deduced according to shear displacement method on basis of certain hypotheses. The relationship between parameters and composite modulus is analyzed. Case study shows that the new method is more precise than traditional methods,and there is a reasonable agreement between theoretical solution and measurement result.

关 键 词：桩基工程 刚–柔性桩复合地基 剪切位移法 复合模量 解析解 

分 类 号：TU473.1[建筑科学—结构工程]