| 解王军,陈云敏.均质结构性软土地基的一维固结解析[J].水利学报,2003,34(3):0019-0024 |
| 均质结构性软土地基的一维固结解析 |
| Analytical solution to 1-D consolidation of uniform structured soft foundation |
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| DOI： |
| 中文关键词: 土结构性 软土地基 一维固结模型 扰动 固结性状 |
| 英文关键词: soil structure characteristics soft foundation 1D consolidation model disturbance consolidation characteristic |
| 基金项目: |
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| 摘要点击次数: 1947 |
| 全文下载次数: 151 |
| 中文摘要: |
| 在软土的结构性试验和工程实践基础上，提出了以结构屈服应力为分段点的Cv-p曲线和k-P曲线的两段式简化模型，建立了均质结构性软土地基的一维固结模型，并给出其分析解和考虑扰动影响的结构性软土地基一维固结计算公式，计算分析了土结构性及扰动对结构性软土地基固结性状的影响，算例表明随着孔隙水压力的消散，地基上部土体出现结构性破坏的固结压密且逐渐向深部发展，对下部土体的固结沉降发展产生较大阻碍作用，软土地基受到扰动会减缓地基沉降的发展，土结构性对地基固结性状影响明显，得到的结论可供工程参考。 |
| 英文摘要: |
| Based on engineering practice and structural experiments of soft clay, a 2-subsections model bounded by structural yield stress ofCv-p and k-p curves were developed. A 1-D consolidation model for uniform structured soft foundation was set up. In deriving the formula, the soil structure haracteristics were considered. The influences of soil structure characteristics and disturbance on the consolidation were also analyzed. The results of case study showed that the soil tructures would destroy and extend to underside along with dissipation of pore water pressure, the onsolidation of upper soil would restrains the consolidation settlement of nether soil and isturbance would slow down the settlement of foundation. The influence of soil structure characte ristics on consolidation was notable. |
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