福厦线粉喷桩复合地基有限元分析  

FINITE ELEMENT ANALYSIS OF EMBANKMENT FOUNDATION IMPROVED BY DJM PILES IN FUZHOU-XIAMEN RAILWAY

作　　者：蒋鑫[1] 邱延峻[1] 周成[2] 

机构地区：[1]西南交通大学土木工程学院,四川610031 [2]铁道第二勘察设计院地路处,四川610031

出　　处：《工程地质学报》2005年第1期124-128,共5页Journal of Engineering Geology

基　　金：铁道第二勘察设计院科研项目(科2003-6)

摘　　要：结合福建省第一条省内高速铁路———福厦线的设计,通过三维Biot固结有限元数值模拟,探讨了粉喷桩处治深厚层 软基的变形特性,并就施工参数、路基参数等对软基沉降的影响进行了参数敏感性分析。其研究成果对工程实践具有一定的 指导意义。Using the FEM with a plane deformation, the authors evaluate the settlement and deformation characteristics of an embankment foundation based on the Biot's consolidation theory. Sensitivity analyses were conducted on some factors, such as construction technique and embankment cross-section parameters. Research results can provide reliable and rigorous guidelines for the design and construction in infrastructure development.

关 键 词：粉喷桩复合地基 软基沉降 处治 高速铁路 路基 有限元分析 施工参数 BIOT固结 变形特性 参数敏感性 

分 类 号：P631[天文地球—地质矿产勘探] U416[天文地球—地质学]