Abstract:Based on Terzaghi′s theory of consolidation and classical Hansbo′s non-Darcian flow model, a nonlinear consolidation model was developed with consideration of natural soil structure and time-dependent load in practical engineering, and the finite difference method was adopted to obtain numerical solutions of the model. Based on the reliability of numerical solutions, the effects of non-Darcian flow and soil structure on the consolidation behavior of structural soft soil with non-Darcian flow were analyzed. The results show that the consolidation rate of structural soft soil with non-Darcian flow is slower than that with Darcy′s flow. The consolidation rate is decreased with the increasing of m or i1 value. When the non-Darcian flow in structural soft soil layer is considered, the consolidation rate is increased with the increasing of structural yield stress and decreasing of compression-index below structural yield stress. The final settlement is decreased with the increasing of structural yield stress and decreasing of compression-index below structural yield stress.
李传勋, 王昌建, 王素, 董兴泉. 考虑非达西渗流的结构性软土非线性固结分析[J]. 江苏大学学报(自然科学版), 2017, 38(4): 472-478.
LI Chuan-Xun, WANG Chang-Jian, WANG Su, DONG Xing-Quan. Analysis on nonlinear consolidation of structural soft soil by considering non-Darcian flow[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2017, 38(4): 472-478.