[1]张慧梅,杨更社,刘 慧.冻融环境下岩体隧道水热耦合模型及数值分析[J].西安科技大学学报,2009,(03):305-309.
 ZHANG Hui-mei,YANG Geng-she,LIU hui.Model and numerical analysis on moisture-heat coupling for rock tunnel under the frost and thaw condition[J].Journal of Xi'an University of Science and Technology,2009,(03):305-309.
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冻融环境下岩体隧道水热耦合模型及数值分析()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2009年03期
页码:
305-309
栏目:
出版日期:
2009-06-11

文章信息/Info

Title:
Model and numerical analysis on moisture-heat coupling for rock tunnel under the frost and thaw condition
文章编号:
1672-9315(2009)03-0305-05
作者:
张慧梅1杨更社2刘 慧2
1.西安科技大学 理学院,陕西 西安 710054; 2.西安科技大学 建筑与土木工程学院,陕西 西安 710054
Author(s):
ZHANG Hui-mei1 YANG Geng-she2; LIU hui2
1.College of Sciences,Xi'an University of Science and Technology, Xi'an 710054,China; 2.College of Civil and Architecture Engineering, Xi'an University of Science and Technology, Xi'an 710054,China
关键词:
关键词: 冻结岩体 水热耦合 理论模型 数值模拟
Keywords:
frozen rock moisture-heat coupling theoretical model numerical simulation
分类号:
P642
文献标志码:
A
摘要:
摘 要: 针对寒区日益增长的工程需要,以大型寒区岩体隧道工程为背景,基于综合传热传质理论,充分考虑岩体介质双重孔隙的结构特点及水热梯度共同作用下水分的迁移与转化,建立岩体冻融过程水热迁移的理论模型,应用Galerkin法导出了这一问题的有限元公式。并以寒区大阪山隧道出口段k106+025处围岩为对象,在空间域内采用有限元网格划分,而在时间域内用有限差分网格划分的混合解法进行有限元计算,分析温度场和水分场变化规律。模拟结果与现有研究成果和工程经验类似,可验证模型的合理性,并为寒区冻融环境下岩体工程的安全性与稳定性分析提供一定的参考。
Abstract:
To the engineering demands for practical problems occurred in cold regions, on the background of large scale rock tunnel, the mathematical model of heat and mass transfer in the process of rock freeze-thaw was established by considering rock structure characteristic of dual porosity media, heat and moisture gradient on the seepage based on the theory of mass and energy transfer, and the finite element formulae of this problem were obtained from Galerkin's method. Taking Daban mountain tunnel as example, the moisture-heat coupling process was numerically simulated by adopting the grid segmentation of the mixture cell in space domain and by the mixture solution of the finite difference format segmentation in time domain, the varied law of moisture and temperature field in the rock tunnel was researched. The simulating result is similar to the current results and engineering experience, it can verify the correctness of the theoretical model and also provide some reference for the security and stability analysis of rock engineering in cold regions under freezing-thawing condition.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2008-10-23 基金项目: 国家自然科学基金(40872177); 陕西省自然科学基金(SJ08A21); 陕西省教育厅专项基金(08JK359) 作者简介: 张慧梅(1968-),女,山西大同人,副教授,主要从事固体力学的教学科研工作.
更新日期/Last Update: 2009-06-11