粘性土の圧密降伏応力の推定法に関する一提案

概要

論文の詳細を見る
In order to investigate the estimation method for consolidation yield stress of cohesive soils by using in-situ tests such as sounding tests, the attention was focused on the relationship between the undrained shear strength and the effective vertical pressure due to overburden pressure. The predicted results were compared with experimental data reported for normally consolidated and overconsolidated soils. The following results were obtained : 1) The ratio of the undrained shear strength to the effective vertical pressure of normally consolidated soils under Ko consolidation can be determined approximately as a constant value of 0.375 irrespective of plasticity index. 2) It was found that the simulated results provide a comparable agreement with some experimental data concerning the undrained shear strength of normally consolidated and overconsolidated soils. 3) The consolidation yield stress of overconsolidated soils subjected to Ko consolidation can be estimated from upper and lower bounds simulated by the proposed model.
社団法人地盤工学会の論文
2002-05-01