复合地基垫层效应的研究综述.pdfVIP

33 西 北 地 震 学 报 Vol.33 Supp. 第 卷 增刊 2011年 8月 NORTHWESTERNSEISMOLOGICALJOURNAL August,2011 复合地基垫层效应研究综述 易耀林，刘松玉 （东南大学岩土工程研究所，江苏 南京 210096） 摘 要：垫层技术是复合地基的关键技术之一。本文总结了当前复合地基垫层效应和作用机理的研 究现状，重点介绍了刚性基础和柔性基础下垫层对复合地基荷载传递规律、破坏模式、承载力和沉 降特性的影响方面的研究。并从调整基础刚度的角度出发对垫层效应和作用机理进行了讨论。 关键词：复合地基；垫层；荷载传递；破坏模式；承载力；沉降 中图分类号：TU472.2 文献标识码：A 文章编号：1000–0844(2011) 增刊–015–06 OverviewontheEffectofCushioninCompositeFoundation OverviewontheEffectofCushioninCompositeFoundation OOvveerrvviieewwoonntthheeEEffffeeccttooffCCuusshhiioonniinnCCoommppoossiitteeFFoouunnddaattiioonn YIYao­lin, LIUSong­yu (InstituteofGeotechnicalEngineering， SoutheastUniversity,Najing 210096,China) Abstract: Abstract: AAbbssttrraacctt::Cushion technique is one of the key techniques of composite foundation. In this paper,the research situation about the influences and action mechanism of cushion in composite foundation is summarized.The research on the four respects of the cushion influence such as the load transfer, failure model, bearing capacity and settlement behavior in both rigid and flexible composite foundation are introduced mainly. At last the effect and action mechanism of cushion is discussed also fromtheviewofadjustingstiffnessofthefoundation. Keywords:Composite foundation;Cushion;Loadtransfer;Failuremodel;Bearing capacity;Settlement Keywords:Composite foundation;Cushion;Loadtransfer;Failuremodel;Bearing capacity;Settlement KKeeyywwoorrddss::CCoommppoossiitteeffoouunnddaattiioonn;;CCuusshhiioonn;;LLooaaddttrraannssffeerr;;FFaaiilluurreemmooddeell;;BBeeaarriinnggccaappaacciittyy;;SSeettttlleemmeenntt 0 引言