初始孔压非均布双层地基一维固结性状分析

One Dimensional Consolidation Behavior of Double-Layered Ground with Non-uniform Distribution of Initial Pore Water Pressure

根据双层地基固结理论,推导出瞬时加载、单面排水、初始孔压非均布的一维固结解答。给出了双层地基不同工况对应的简化初始孔压分布图,以便实际运用。通过编制的计算程序,分析了不同初始孔压分布对双层地基一维固结性状的影响。结合硬壳层地基固结的计算实例,分析了硬壳层应力扩散效应对固结曲线影响。

According to the consolidation theory of double-layered ground, a solution is given to the problem of one- dimensional consolidation in consideration of instant load, singleside drain and non-uniform distribution of initial pore water pressure. The simplified diagram of initial pore water pressure distribution under different working condi- tions is given for engineering practice. The influence of initial pore water pressure distribution on one-dimensional consolidation behavior of double-layered ground is analyzed through computer program. The impact of stress spreading in dry crust on the consolidation curves is illustrated by calculating examples.