饱和度对多孔介质中热-水-力耦合响应的影响

    郭志光, 白冰

    郭志光, 白冰. 饱和度对多孔介质中热-水-力耦合响应的影响[J]. 岩土工程学报, 2018, 40(6): 1021-1028. DOI: 10.11779/CJGE201806007
    引用本文: 郭志光, 白冰. 饱和度对多孔介质中热-水-力耦合响应的影响[J]. 岩土工程学报, 2018, 40(6): 1021-1028. DOI: 10.11779/CJGE201806007
    GUO Zhi-guang, BAI Bing. Effect of saturation on thermo-hydro-mechanical coupled responses in porous media[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(6): 1021-1028. DOI: 10.11779/CJGE201806007
    Citation: GUO Zhi-guang, BAI Bing. Effect of saturation on thermo-hydro-mechanical coupled responses in porous media[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(6): 1021-1028. DOI: 10.11779/CJGE201806007

    饱和度对多孔介质中热-水-力耦合响应的影响  English Version

    基金项目: 国家自然科学基金项目(51478034,51678043)
    详细信息
      作者简介:

      郭志光(1987- ),男,博士研究生,主要从事岩土工程等方面的研究工作。E-mail:zgguo_87@126.com。

      通讯作者:

      白冰,E-mail:baibing66@263.net

    Effect of saturation on thermo-hydro-mechanical coupled responses in porous media

    • 摘要: 以湿-热弹性理论为基础,给出了非饱和多孔介质中热能传输、水分迁移和变形的耦合控制方程,并与已有试验结果进行了对比。模型计算结果与试验结果吻合较好。针对多孔介质中初始饱和度随深度呈不同分布的三维非对称热源问题进行了热-水-力耦合响应分析。分析表明:当初始饱和度沿竖向的梯度变化较小时,重力作用下孔隙水首先由多孔介质上部向下部流动,继而在温度荷载作用下产生回旋流动。当竖向梯度变化较大时,基质吸力作用下孔隙水先由饱和度较高的底部流向饱和度较低的顶部,然后产生回旋流动,且回旋中心位置随竖向梯度的减小逐渐向多孔介质中心位置靠近。
      Abstract: An analytical method is developed for the governing equations for coupling of heat transfer, moisture transfer and deformation in unsaturated porous media based on the theory of wet and thermal elasticity. Compared with the existing experimental results, the calculated results are in good agreement with the experimental ones. The numerical analysis of thermo-hydro-mechanical in porous media is performed, which is a three-dimensional model for asymmetric heat source with different distributions of initial saturation degrees. The results show that when the vertical gradient of the initial saturation is smaller, the pore water is first to flow from the upper part to the lower part of the porous media under the action of gravity. And then the swirling flow is generated under the action of temperature load. On the other hand, when it is larger, the pore water under the action of matrix suction flows from the bottom of the porous media with high saturation to the top of the porous media with low saturation under the effect of matrix suction, and then a swirling flow is produced. With the decrease of the vertical gradient, the center of the swirling gradually moves closer to the center position of the porous media.
    • [1] CHEN Xiao-hui, PAO W, THORNTON S, et al.Unsaturated hydro-mechanical-chemical constitutive coupled model based on mixture coupling theory: hydration swelling and chemical osmosis[J]. International Journal of Engineering Science, 2016, 104: 97-109.
      [2] CHEN Yi-feng, ZHOU Chuang-bing, JING Lan-ru.Modeling coupled THM processes of geological porous media with multiphase ?ow: theory and validation against laboratory and field scale experiments[J]. Computers and Geotechnics, 2009, 36: 1308-1329.
      [3] RUTQVIST J, BORGESSON J, CHIJIMATSU M, et al.Thermohydromechanics of partially saturated geological media: governing equations and formulation of four finite element models[J]. International Journal of Rock Mechanics & Mining Sciences, 2001, 38: 105-127.
      [4] WANG Xue-rui, SHAO Hua, HESSER J, et al.Numerical analysis of thermal impact on hydro-mechanical properties of clay[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2014, 6: 405-417.
      [5] CHEN J, HOPMANS J W, GRISMER M E.Parameter estimation of two-fluid capillary pressure saturation and permeability functions[J]. Advances in Water Resources, 1999, 22(5): 479-493.
      [6] AKROUCH G A, SANCHEZ M, BRIAUD J L.An experimental, analytical and numerical study on the thermal efficiency of energy piles in unsaturated soils[J]. Computers and Geotechnics, 2016, 71: 207-220.
      [7] GHORBANI J, NAZEM M, CARTER J P.Numerical modelling of multiphase ?ow in unsaturated deforming porous media[J]. Computers and Geotechnics, 2016, 71: 195-206.
      [8] 白冰. 岩土介质非稳态热固结耦合问题的热源函数法[J]. 力学学报, 2004, 36(4): 427-433.
      (BAI Bing.Heat source function method for coupling analyses of thermal consolidation in saturated soil[J]. Chinese Journal of Theoretical and Applied Mechanics, 2004, 36(4): 427-433. (in Chinese))
      [9] 白冰, 李大鹏. 变热源强度温度荷载作用下非饱和土中的水分迁移规律研究[J]. 岩石力学与工程学报, 2006, 25(增刊2): 4153-4159.
      (BAI Bing, LI Da-peng.Study on moisture transfer rule in unsaturated soils due to heat source with variable intensity[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(S2): 4153-4159. (in Chinese))
      [10] 张玉军. 核废料处置概念库近场热-水-应力耦合二维有限元模拟[J]. 岩土工程学报, 2006, 28(9): 1053-1058.
      (ZHANG Yu-jun.2D FEM simulation for coupled thermo-hydro-mechanical processes of near field in conceptual nuclear waste repository[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(9): 1053-1058. (in Chinese))
      [11] 张玉军. 核废料地质处置近场热-水-应力-迁移耦合二维有限元分析[J]. 岩土工程学报, 2007, 29(10): 1553-1557.
      (ZHANG Yu-jun.2D FEM analysis for coupled thermo-hydro-mechanical-migratory process in near field of geological disposal of nuclear waste[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(10): 1553-1557. (in Chinese))
      [12] BAI B.Thermal response of saturated porous spherical body containing a cavity under several boundary conditions[J]. Journal of Thermal Stresses, 2013, 36(11): 1217-1232
      [13] BAI B, LI T.Irreversible consolidation problem of a saturated porothermoelastic spherical body with a spherical cavity[J]. Applied Mathematical Modelling, 2013, 37(4): 1973-1982
      [14] BAI B, SU Z Q.Thermal responses of saturated silty clay during repeated heating-cooling processes[J]. Transport in Porous Media, 2012, 93(1): 1-11.
      [15] LU Sen, REN Tu-sheng, GONG Yuan-shi, et al.An improved model for predicting soil thermal conductivity from water content at room temperature[J]. Soil Sci Soc Am J, 2007, 71(1): 8-14.
      [16] COTE J, KONRAD J M.A generalized thermal conductivity model for soils and construction materials[J]. Can Geotech J, 2005, 42: 443-458.
      [17] TOUMA J, VAUCLIN M.Experimental and numerical analysis of two-phase infiltration in a partially saturated soil[J]. Tranport in Porous Media, 1986, 1: 27-55.
      [18] MUALEM Y.A new model for predicting the hydraulic permeability of unsaturated porous media[J]. Water Resources Research, 1976, 12(3): 513-522.
      [19] VAN-GENUCHTEN M Th. A closed-form equation for predicting the hydraulic of conductivity of unsaturated soils[J]. Soil Science Society of America Journals, 1980, 44(5): 892-898.
      [20] ECKERT E R G, DRAKE M. Analysis of heat and mass transfer[M]. New York: Hemisphere Publishing, 1987.
      [21] VARGNAFTIK N B.Tables of thermophysical properties of liquids and gases[M]. 2nd ed. Hemisphere Publishing, 1975.
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    出版历程
    • 收稿日期:  2017-02-15
    • 发布日期:  2018-06-24

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