层状地基一维固结电阻网法解答  

ONE DIMENSIONAL CONSOLIDATION SOLUTION OF MULTI-LAYERED SOIL BY RESISTANCE NETWORK METHOD

作　　者：谢新宇[1] 王龙[1] 刘开富[2] 

机构地区：[1]浙江大学软弱土与环境土工教育部重点实验室,杭州310058 [2]浙江理工大学建筑工程学院,杭州310018

出　　处：《工程力学》2012年第6期98-104,共7页Engineering Mechanics

基　　金：浙江省自然科学基金项目(Y1090971);国家自然科学基金项目(51079126);教育部科学技术研究重点项目(No.210089)

摘　　要：考虑层状地基一维固结问题的复杂性,现有解答较为繁杂同时不便应用。该文基于Liebmann电阻网原理,推导了初始孔压沿深度任意分布、荷载随时间任意变化作用下的孔压、平均固结度的解答。该解对于各种复杂条件均具有统一的矩阵表达式,便于编程计算和工程应用。通过与精确解的比较论证了该文方法的有效性。最后,对三层地基一维固结问题进行了分析和讨论。Because of the complexity of one-dimensional consolidation problem for layered soil, the existing analytical solutions are quite miscellaneous and un-convenient to be applied in practical engineering. In this paper, the one-dimensional multi-layered consolidation problem was analyzed by using the principle of Liebmann＇s resistance network analogue and considering the initial pore pressure distribution and arbitrary loading condition. Due to the uniform matrix of the solution under complicated situations, it is convenient for computational programming and engineering application. The validity of this method was demonstrated through a comparison with exact solutions. Furthermore, the resistance network analogue method solution was applied to the problem of one-dimensional consolidation of three layered soil. Some diagrams were given and the thickness of soil, the compression modulus and the vertical coefficient of permeability of each layer on the consolidation behavior of layered soil were discussed.

关 键 词：层状地基 一维固结 电阻网法 MATLAB程序 孔压 平均固结度 

分 类 号：TU433[建筑科学—岩土工程]