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| 考虑起始水力梯度时饱和黏土的一维固结 | |
| 引用本文： | 刘忠玉,刘忠广,马崇武.考虑起始水力梯度时饱和黏土的一维固结[J].郑州大学学报(工学版),2006,27(3):21-24. |
| 作者姓名： | 刘忠玉 刘忠广 马崇武 |
| 作者单位： | 1. 郑州大学土木工程学院,河南,郑州,450002 2. 河南纺织高等专科学校,河南,郑州,450007 3. 东莞理学院建筑工程系,广东,东莞,523808 |
| 基金项目： | 河南省教育厅自然科学基金;东莞理工学院校科研和教改项目 |
| 摘 要： | 采用考虑起始水力梯度的非Darcy渗流方程，修正了Terzaghi饱和黏土一维固结理论，并用有限体积法进行了求解．计算结果表明，只要起始水力梯度大于0，地基的固结速度就慢于Terzaghi固结理论值．而且除固结系数外，起始水力梯度，土层厚度以及上覆压力也都对地基的固结有显著影响．另外，还证实．当主固结完成时，地基中存在一定的残余孔隙水压力无法完全消散． |
| 关 键 词： | 固结理论 非Darcy渗流 起始水力梯度 有限体积法 |
| 文章编号： | 1671-6833(2006)03-0021-04 |
| 修稿时间： | 2006年4月29日 |
One-dimensional Consolidation of Saturated Clays Considering Initial Hydraulic Gradient |
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| LIU Zhong-yu,LIU Zhong-guang,MA Chong-wu.One-dimensional Consolidation of Saturated Clays Considering Initial Hydraulic Gradient[J].Journal of Zhengzhou University: Eng Sci,2006,27(3):21-24. | |
| Authors: | LIU Zhong-yu LIU Zhong-guang MA Chong-wu |
| Abstract: | Terzaghi's one-dimensional consolidation theory is modified based on the modified non-Darcy seepage equation considering the initial hydraulic gradient,and solved by using the finite volume method in this paper.The analytical results indicate that,for the soil with the initial hydraulic gradient greater than zero,the rate of consolidation is less than that by applying Terzaghi's consolidation theory,and the initial hydraulic gradient,the thickness of the layer and the ground pressure,besides the consolidation coefficient,also play important roles in the process of consolidation.In addition,it is validated that there exists some residual pore pressure which cannot be completely dissipated in the soil layer at the end of primary consolidation. |
| Keywords: | consolidation theory non-Darcy seepage initial hydraulic gradient finite volume method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
