软土地基固结与沉降概率分析

软土地基固结与沉降概率分析 English Version

摘要: 本文应用可靠性理论,通过对软土地基土性指标的概率统计处理,对深圳机场场道软基加固试验段的地基沉降量、固结度及差异沉降进行了一次比较完整的概率分析;推导了用砂井排水和超载预压方案加固软基时的沉降量和团结度的概率计算模式;最后得出了固结度、沉降量和差异沉降的概率分析结果。
- 固结与沉降 /
- 概率分析 /
- 土性参数 /
- 软土地基 /
- 平均固结度 /
- 协方差 /
- 差异沉降 /
- 土层 /
- 随机变量 /
- 沉降量
Abstract: This paper, by using reliability theory, Suggests a comprehensive probabilistic analysis on sett-lement,consolidation and differential stettlement for foundation treatment field testing site in Shen-Zhen Huang-Tian Airport The spatial variability and some uncertainties about the soil property constants were property considered and two kinds of probabilistic models on calculating settlement and consolidation for soft foundation treatment by sand drain and preloading method were deduced. The analysis results verified that the possible posterior differential sttlement will be less than the allowable value.