武广客专红粘土变形特性及形成机理研究  

Study on Deformation Characteristics and Formation Mechanism of Red Clay along Wuhan-Guangzhou Passenger Line

作　　者：余敦猛 杨果林[2] 方薇[2] 

机构地区：[1]中冶集团武汉勘察研究院有限公司,武汉430080 [2]中南大学土木建筑学院,长沙410075

出　　处：《武汉理工大学学报（交通科学与工程版）》2010年第6期1255-1259,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金资助项目(批准号:50778180);铁道部科技研究开发计划项目(批准号:2005K002-B-2-1)资助

摘　　要：对武广客运专线沿线红粘土进行了变形特性研究,结合室内试验,考察了该地区红粘土的应力-应变特性、固结变形特性和胀缩变形特性,发现该地区红粘土具有典型红粘土的超固结性,固而不密、固结反剖面特性,中等压缩性,其膨胀性较小而收缩性较强.讨论了红粘土变形特性的形成机理.Deformation characteristics of red clay along Wuhan-Guangzhou passenger line was studied based on large amount of laboratory experiments.And stress-strain relation,consolidation and swell-shrinking deformation characteristics were researched,finally it＇s found that red clay in this area was over-consolidated with high porosity.Besides,it was of middle compressibility,low expansibility,high shrinkage,and it had reversed profile properties.Formation mechanism was then discussed.

关 键 词：红粘土 固结变形 胀缩变形 形成机理 

分 类 号：U213.1[交通运输工程—道路与铁道工程]