[1]吴义章..流变对饱和黏土一维非达西渗流固结的影响[J].郑州大学学报(工学版),2013,34(02):80-83.[doi:10.3969/j.issn.1671-6833.2013.02.021]
　WU Yi-zhang.Effects of Rheological Behaviors on One-Dimensional Consolidation ofNormally Consolidated Soils Considering Non-Darcy Flow[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):80-83.[doi:10.3969/j.issn.1671-6833.2013.02.021]
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流变对饱和黏土一维非达西渗流固结的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34
期数:
2013年02期
页码:
80-83
栏目:
出版日期:
2013-03-28

文章信息/Info

Title:
Effects of Rheological Behaviors on One-Dimensional Consolidation ofNormally Consolidated Soils Considering Non-Darcy Flow
作者:
吴义章.
郑州大学土木工程学院,河南郑州,450001
Author(s):
WU Yi-zhang
School of Civil Engineering，Zhengzhou University，Zhengzhou 450001，China
关键词:
土力学;  正常固结土;  固结;  流变;  非达西渗流;  有限体积法
Keywords:
soil mechanics; normally consolidated soil;  consolidation;  rheology ;  non-Darey flow;  finite vol-ume method
分类号:
TU431
DOI:
10.3969/j.issn.1671-6833.2013.02.021
文献标志码:
A
摘要:
引入修正的孔隙比变化值和时间对数的线性关系式来描述正常固结饱和黏土固结过程中的流变现象,并采用Hanso渗流方程代替达西定律,推导了一维流变固结方程,然后引入有限体积法进行了数值计算,探讨了考虑流变效应时此类土固结的规律.计算结果表明,和非达西渗流影响类似,流变效应延缓了黏土层中孔压的整体消散速度；而且考虑流变效应时,出现了类似曼德尔效应的现象,即在回结的初期,在远离排水面的地方,超孔压有所升高.计算结果还表明,荷载大小也会影响到流变固结进程.
Abstract:
The modified linear relationship between the change of void ratio and the logarithmic time was intro-duced to simulate the rheological behaviors in the consolidation process of normally consolidated and saturatedclays,one-dimensional rheological consolidation equation was obtained based on Hansbo’s formula for non-Darey flow,and numerical analysis was performed by using the finite volume method.Then the effects of rheo-logical parameters on the one-dimensional consolidational behaviors of normally consolidated soils were investi-gated. The numerical calculation results indicated that the rheological behaviors of these soils delay the overallrate of dissipation of the excess pore water pressure in these soil layers resembling the effect of non-Darey flow,and the phenomenon similar to the Mandel effect appears, i.e. the excess pore water pressure increases in theplace far away from the drainage boundary at the beginning of loading. In addition , the loading value can alsoinfluence the consolidation behaviors of these soil layers.
更新日期/Last Update: 1900-01-01