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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2010, Vol. 29 ›› Issue (5): 741-744.

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基于流- 固耦合理论的病险土石坝渗流规律

栾艳1, 赵明阶2, 汪魁2   

  1. 1.中铁工程设计院有限公司沈阳分公司, 辽宁 沈阳 110023; 2.重庆交通大学河海学院, 重庆 400074
  • 收稿日期:2010-05-10 修回日期:2010-06-20 出版日期:2010-10-15 发布日期:2015-01-22
  • 作者简介:栾艳(1984—),女,吉林柳河人,硕士,主要从事水工建筑物健康诊断与加固技术方面的研究和工作。E-mail:winluany@126.com。
  • 基金资助:
    国家自然科学基金项目( 50779081)

Analysis of Diseased Earth-rockfill Dam Seepage Based on Coupled Fluid-solid Theorem

LUAN Yan1, ZHAO Ming-jie2, WANG Kui2   

  1. 1.Shenyang Department of China Railway Engineering Design Institute, Shenyang 110023, Liaoning, China; 2.School of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2010-05-10 Revised:2010-06-20 Online:2010-10-15 Published:2015-01-22

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摘要： 土石坝病险问题主要是各种原因引起的渗漏。因此,研究病险土石坝加固技术首先必须分析土石坝渗流规 律和渗透机理。基于多孔介质流-固耦合理论,在不考虑土体和水的压缩性以及孔隙率不变的假定下,利用 FLAC3D数值分析软件,建立了土石坝二维模型,对2种病险土石坝模型的应力场、渗流场以及孔压进行了分析,总 结得出了土石坝的渗流规律和土石坝渗漏机理,为土石坝加固技术提供了理论依据。

关键词: 病险土石坝, 流-固耦合理论, 渗流规律, 加固技术

Abstract: The main problem of earth-rock filled dam's danger is the seepage caused by a variety of reasons. Therefore, the seepage and percolation mechanism law of the dam should be firstly studied for its reinforcement technology. Based on porous media coupled fluid-solid theorem, the two-dimensional model of dam is established using FLAC 3D numerical analys is software without the consideration of soil and water compressibility and constant porosity. The stress, and seepage, and pore pressure of two types of dangerous dams are analyzed. Finally, the permeability law and the seepage mechanism of the earth-rock-filled dam are summed up, which provide theoretic guidance to the strengthening technology of earth-rock-filled dam.

Key words: diseased earth-rock-filled dam, coupled fluid-solid theorem, the law of seepage, reinforcement technology

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