CUMULATIVE PLASTIC DEFORMATION FOR IMPROVED SOILSUBGRADE UNDER CYCLIC LOADINGS

摘要：

Based on an improved dynamic model,a method is proposed to predict the cumulative plastic deformation for improved weathered granite subgrade under long-term cyclic loadings.The formulas for parameter quantification in the method are derived by regression of repeated load triaxial test results.To determine the deviator stresses used in the method,a fully non-linear simulation model of an improved weathered granite subgrade in Wu-Guang FDR is developed by employing Lagrangian difference method and free-field boundaries.The settlements of the improved soil subgrade are predicted and analyzed.The applicability of the proposed method is verified by comparisons between predicted and field test results.

关键词： improved weathered granite cyclic loads prediction method cumulative plastic deformation Wu-Guang PDR (Passenger Dedicated Railway)

作者: C.Z.Qu Y.H.Wang W.Yi

作者单位: School of Civ il and Architectural Engineering,Central South University,Changsha 410075,China Civil School of Civ il and Architectural Engineering,Central South University,Changsha 410075,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 441-444

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）