摘要
通过固结不排水三轴试验,对黄河三角洲粉质土稳态强度进行研究:首先设计了3组干密度分别是1.55,1.65,1.75g/cm3的粉土样,分析了初始干密度对稳态线的影响,论证了稳态线的唯一性;然后又设计了5组不同黏粒含量分别是10%,14%,17%,24%,30%的粉质土,定量分析了黄河三角洲粉质土中的黏粒含量对稳态强度线的影响,得出了黏粒含量为17%的粉质土的稳态强度最大的结论,并分析了产生这种现象的原因,最终建立了稳态强度随黏粒含量变化的关系函数。
Consolidated and undrained triaxial tests are carried out to study the steady-state strength of silty soil in the Yellow River Delta. First three groups of silty soil samples with different dry densities, i.e., 1.55, 1.65 and 1.75 g/cm^3, are prepared, the influence of the initial dry density on the steady state line is studied, and uniqueness of the steady state line is discussed. Then five groups of silty soil samples with different clay contents , i.e., 10%, 14%, 17%, 24% and 30%, are prepared, and the influence of the clay content on the steady state strength line is quantitatively analyzed. A conclusion is drawn that the silty soil with the clay content of 10% has the maximal steady state strength. Reasons of such phenomena are analyzed, and eventually the correlation function between the steady state strength and the clay content is established.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2009年第8期1287-1291,共5页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金项目(40606020)
山东省自然科学基金项目(Y2007E07)
关键词
黄河三角洲
粉质土
稳态强度
液化
干密度
黏粒含量
Yellow River Delta
silty soil
steady state strength
liquefaction
dry density
clay content
