华中科技大学学报（自然科学版）Issue(1)：1-5,5.DOI:10.13245/j.hust.160101
中低压缩性黏土地基沉降变形特性试验研究
Experimental investigation on settlement deformation behavior of clay ground with medium-low compressibility
摘要
Abstract
A series of soil tests ,in‐situ tests ,and field experiments were conducted focusing on the al‐luvial clay with medium‐low compressibility (CMLC) distributing at the high fluvial terrace of Yan‐gtze River ,sampled from the test field in Anqing along Ning’an high‐speed railway .Physico‐mechani‐cal properties of the CMLC were studied and the effect of test methods on parameters of settlement calculation was investigated .Meanwhile ,the total settlement ,layer settlement ,pore water pressure , and lateral displacement w ere all studied based on field measurements .Results show that the CM LC is of good engineering properties and strong overconsolidation characteristic .Obvious effect of sampling disturbance on the soil test results is observed .Static cone penetration test is recommended to obtain the parameters of settlement calculation .The ground settlement is dominated by elastic deformation of shallow strata under embankment load .Field measurements of pore water pressure and lateral dis‐placement indicate that drainage consolidation is not obvious and the embankment load is mainly un‐dertaken by the soil particle skeleton .关键词
中低压缩性黏土/土工试验/原位测试/现场试验/沉降变形Key words
clay with medium-low compressibility/soil test/in-situ test/field test/settlement de-formation分类
建筑与水利引用本文复制引用
曹文昭,郑俊杰,董同新,谢明星..中低压缩性黏土地基沉降变形特性试验研究[J].华中科技大学学报（自然科学版）,2016,(1):1-5,5.基金项目
国家自然科学基金资助项目（51278216）；湖北省自然科学基金资助项目（2013C FB180）；铁四院科技研究开发计划资助项目（2010K29-1）． （）
