土工格栅加筋砂土上的偏心受压条形基础研究  

Eccentrically Loaded Strip Foundation on Geogrid-reinforced Sand

作　　者：李雨舟[1] 聂晓清 

机构地区：[1]长沙理工大学公路工程学院,湖南长沙410076 [2]湖南省建筑设计院,湖南长沙410011

出　　处：《岩土工程技术》2008年第4期203-207,共5页Geotechnical Engineering Technique

摘　　要：提供了土工格栅加筋砂土上的偏心受压条形基础极限承载力的室内模型试验结果。试验中只使用了一种相对压实密度的砂土和一种土工格栅,基础深度由0变化至B(基础宽度)。基于室内试验结果,提出了一个称为折减系数的经验关系,将偏心受压基础的极限承载力与中心受压基础的极限承载力联系起来。Results are presented for laboratory model tests conducted to determine the ultimate bearing capacity of an eccentrically loaded strip foundation supported by geogrid-reinforced sand. Only one type of sand at one relative density of compaction and one type of geogrid were used for the tests. The depth of the foundation was varied from zero to B （width of foundation）. Based on the laboratory test results, an empirical relationship called reduction factor has been suggested that correlates the ratio of the ultimate bearing capacity of an eccentrically loaded foundation with that for a foundation where the load is applied centrally.

关 键 词：偏心荷载 土工格栅 砂土 条形基础 极限承载力 

分 类 号：TU472[建筑科学—结构工程]