砂井地基固结的空间渗流和群井效应的解析分析

Analysis for the Effect of 3-D Seepage and Sand Drain Group on Consolidation of Foundation

本文从Ｔｅｒｚａｇｈｉ－Ｒｅｎｄｕｌｉｃ三维固结方程出发，对砂井地基因结的空间渗流和群井效应作了分析。文中给出的砂井地基因结的解析解可考虑群井共同作用、空间渗流和井阻作用，满足软土的上下边界条件、各砂井中的连续和井阻条件。文末作了数值计算，讨论了空间渗流和群井效应对砂井地基中的孔隙水压力消散及地基因结的影响。

Analysis for the effect of 3-D seepage and sand drain group on consolidation of foundation is performedwith Terzaghi-Rendulic's 3-D consolidation equation in this paper. Analytical solution which takes into account theeffect of the interaction between sand drains, 3-D seepage and well resistance, and satisfies the drainage condition onthe top and bottom boundary of the soil as well as the flow continuous and well resistance conditions of each sanddrain is presented. The effect of 3-D seepage and sand drain group on the pore pressure dissipation and foundationconsolidation is also discussed through numerical computation.