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[1]邓凡凡,刘加才.渗透系数非线性的一维热固结分析[J].南京工业大学学报(自然科学版),2014,36(06):111-117.[doi:10.3969/j.issn.1671-7627.2014.06.020]
 DENG Fanfan,LIU Jiacai.One-dimensional heat consolidation analysis on nonlinear permeability coefficient[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(06):111-117.[doi:10.3969/j.issn.1671-7627.2014.06.020]
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渗透系数非线性的一维热固结分析()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年06期
页码:
111-117
栏目:
出版日期:
2014-11-21

文章信息/Info

Title:
One-dimensional heat consolidation analysis on nonlinear permeability coefficient
文章编号:
1671-7627(2014)06-0111-07
作者:
邓凡凡刘加才
南京工业大学 交通学院,江苏 南京 210009
Author(s):
DENG FanfanLIU Jiacai
College of Transportation Science & Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
热固结 热-水-力耦合 渗透系数 非线性 有限差分法
Keywords:
thermal consolidation thermal-hydraulic-mechanical couple permeation coefficient nonlinear finite difference method
分类号:
TU443
DOI:
10.3969/j.issn.1671-7627.2014.06.020
文献标志码:
A
摘要:
基于考虑渗透系数非线性的饱和多孔介质一维热-水-力耦合控制方程,提出有限差分数值求解方法,并编制相应程序。利用该程序对一算例进行分析。结果表明:在渗透系数为常量的情况下解答与现有解析解答完全一致,验证了数值解和程序的正确性。考虑渗透系数随温度非线性变化的热固结,对温度场变化没有影响,但孔压消散明显加快,达到最终沉降量所需时间也减小。温度荷载越大,固结越快。
Abstract:
Thermal consolidation was one of the hot issues in the research of geotechnical engineering in recent years.Coupled thermal-hydraulic-mechanical governing equations were used in many works but few took nonlinear permeation coefficient into account.Based on fully coupled thermal-hydraulic-mechanical formulation of saturated soil,the characteristics of the permeation coefficient were considered and finite difference numerical method was put forward to solve the problem.A program was worked out for case analysis.Present solution agreed well with existing analytical solution when permeation coefficient was constant,which verifies the rationality of the finite difference numerical method and the accuracy of the program.When permeation coefficient changed nonlinearly with temperatures,thermal consolidation had no influence on the temperature field,but it significantly accelerated the pore pressure dissipation and shorts the time required to reach final settlement.And the greater the temperature load,the faster the consolidation.

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备注/Memo

备注/Memo:
收稿日期:2014-01-02
基金项目:江苏省自然科学基金(KB2012827)
作者简介:邓凡凡(1987—),男,安徽蚌埠人,硕士,主要研究方向为地基处理; 刘加才(联系人),副教授,E-mail:liujchhu@163.com..
更新日期/Last Update: 2014-11-20