水道港口2016，Vol.37Issue(4)：439-444,460,7.
荷载作用下超固结比对软土抗剪强度指标影响
Variation of soft clay strength index with over-consolidated ratio under load
摘要
Abstract
Through indoor triaxial test, the relationship between over-consolidated ratio of the silt mass silty clay and shear strength under load was studied in this paper. Then the variation of the shear strength index c ,φof soft clay with the over-consolidated ratio and the axial deviatoric stress was summarized. Test results show that the shear strength increases with the increase of the deviatoric stress;the shear strength increases with the increase of over-consolidated ratio, the greater the over-consolidated ratio increases, the slower the shear strength of the soil samples increases. c andφincrease linearly with the increase of the axial deviatoric stress, butφincreases in small extent;the greater the over-consolidated ratio increases, the slower c andφincrease. Compared with c,φincreases in small extent. Finally, formulae were used to fit the experimental data, and the formulae of the variation of soft clay strength index c,φwith over-consolidated ratio under load were put forward.关键词
超固结比/轴向偏应力/抗剪强度/抗剪强度指标c,φ值的计算公式Key words
over-consolidated ratio/deviatoric stress/shear strength/formulae of strength index c/φ分类
建筑与水利引用本文复制引用
王元战,马楠,尹利强..荷载作用下超固结比对软土抗剪强度指标影响[J].水道港口,2016,37(4):439-444,460,7.基金项目
国家自然科学基金(51279128) （51279128）
国家自然科学基金创新研究群体科学基金(51321065) （51321065）
交通运输部交通建设科技项目(2013328224070) （2013328224070）
