某工程长短桩组合桩基础设计方案分析  

Analysis of design project of long-short piles foundation of an engineering

作　　者：杨敏[1] 杨桦[1] 王伟[1] 黄上进 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]广东汕头升平建筑设计院,广东汕头515000

出　　处：《岩土力学》2005年第S1期218-222,共5页Rock and Soil Mechanics

摘　　要：针对土层中存在上下两层或多层可供利用的桩端持力层,且建筑物对沉降要求较高的情况,基于减沉桩原理,根据长桩控制变形、短桩提供承载力的基本思路,提出长短桩组合桩基础设计思想。结合某一实际工程桩基设计,采用长短桩组合桩基础方案进行了三维有限元分析。结果表明,长短桩组合桩基础不仅可以大量减少长桩用量,而且可有效地控制基础整体沉降和差异沉降,显示了其良好的应用前景。Considering the case that there exist two bearing strata in soil and low settlement of foundation is required, based on the controlling settlement principle, the design philosophy of long-short piles foundation is presented. The long piles are to control the settlement and short piles to provide bearing capacity. Finite element model of long-short piles foundation is established to analyze a practical engineering. The results show that long-short piles foundation demands fewer long piles and can control the...

关 键 词：长短桩 设计思想 有限元法 

分 类 号：TU473.1[建筑科学—结构工程]