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广西红黏土热物理特性及影响因素试验研究

曾召田, 赵艳林, 吕海波, 徐云山, 李其林, 蔡於芬

曾召田, 赵艳林, 吕海波, 徐云山, 李其林, 蔡於芬. 广西红黏土热物理特性及影响因素试验研究[J]. 岩土工程学报, 2018, 40(S1): 252-258. DOI: 10.11779/CJGE2018S1041
引用本文: 曾召田, 赵艳林, 吕海波, 徐云山, 李其林, 蔡於芬. 广西红黏土热物理特性及影响因素试验研究[J]. 岩土工程学报, 2018, 40(S1): 252-258. DOI: 10.11779/CJGE2018S1041
ZENG Zhao-tian, ZHAO Yan-lin, LÜ Hai-bo, XU Yun-shan, LI Qi-lin, CAI Yu-fen. Experimental study on thermal properties of red clay in Guangxi province and its influence factors[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S1): 252-258. DOI: 10.11779/CJGE2018S1041
Citation: ZENG Zhao-tian, ZHAO Yan-lin, LÜ Hai-bo, XU Yun-shan, LI Qi-lin, CAI Yu-fen. Experimental study on thermal properties of red clay in Guangxi province and its influence factors[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S1): 252-258. DOI: 10.11779/CJGE2018S1041

广西红黏土热物理特性及影响因素试验研究  English Version

基金项目: 国家自然科学基金项目(51568014; 41502284); 广西建筑新能源与节能重点实验室资助课题(桂科能17-J-21-2); 桂林理工大学博士科研启动基金项目(2016254)
详细信息
    作者简介:

    曾召田(1981- ),男,湖南邵阳人,博士,高级实验师,硕士生导师,主要从事非饱和土力学、浅层地热能利用技术及相关环境岩土工程问题等方面的研究与教学工作。E-mail:zengzhaotian@163.com。

    通讯作者:

    吕海波,E-mail:lhb@glut.edu.cn

  • 中图分类号: TU446

Experimental study on thermal properties of red clay in Guangxi province and its influence factors

  • 摘要: 结合矿物组成分析,通过室内试验对广西4种红黏土的热物理特性从土质学角度进行了深入研究,探讨了红黏土的热特性参数与各影响因素之间的关系。研究结果表明:当土体干密度保持不变,红黏土的热导率、比热容随体积含水率的增加而线性递增;热导率变化曲线存在临界含水率点,土体含水率低于该点时,热导率呈线性急剧增加,反之,热导率增长缓慢,趋于稳定;热扩散率以临界含水率点为界,先随含水率的增大而递增,到达临界含水率后随含水率的增加而递减,整体呈抛物线的变化趋势;当土体含水率保持不变,红黏土的热导率、比热容、热扩散率均随干密度的增加而线性递增;红黏土矿物成分中的石英含量对土体的热导率具有显著影响,石英含量与热导率的增长速率呈正相关的关系。
    Abstract: By analyzing their mineral compositions, the thermo-physical properties of 4 kinds of red clay in Guangxi Province are studied from the perspective of soil mechanics. The relationship between the thermal parameters and their impact factors also discussed. The results show that the thermal conductivity and specific heat capacity both increase linearly with the increasing water content when the dry density of soil samples keeps the same value. There is a critical water content point on the change curves of thermal conductivity. The thermal conductivity increases sharply in a line with the increasing water content when the water content is lower than the critical point. Conversely, the thermal conductivity increases slowly and tends to a stable constant. The thermal diffusivity increases with the water content when the water content is lower than the critical value. However, the thermal diffusivity decreases with the water content when the water content is larger than the critical value. The change curves of thermal diffusivity are shown as parabolic shape. It is also found that the thermal conductivity, specific heat capacity and thermal diffusivity show a linear increase with the dry density when the soil water content keeps the same value. Finally, the quartz content of mineral composition of red clay has obvious impact on its thermal conductivity. The increase rate of thermal conductivity of red clay is positively related with its quartz content.
  • [1] 孙德安, 刘文捷, 吕海波. 桂林红黏土的土-水特征曲线[J]. 岩土力学, 2014, 35(12): 3345-3351.
    (SUN De-an, LIU Wen-jie, LU Hai-bo.Soil-water characteristic curve of Guilin lateritic clay[J]. Rock and Soil Mechanics, 2014, 35(12): 3345-3351. (in Chinese))
    [2] 赵颖文, 孔令伟, 郭爱国, 等. 广西红黏土击实样强度特性与胀缩性能[J]. 岩土力学, 2004, 25(3): 369-373.
    (ZHAO Ying-wen, KONG Ling-wei, GUO Ai-guo, et al.Strength properties and swelling-shrinkage behavior of compacted lateritic clay in Guangxi[J]. Rock and Soil Mechanics, 2004, 25(3): 369-373. (in Chinese))
    [3] 谭罗荣, 孔令伟. 某类红黏土的基本特性与微观结构模型[J]. 岩土工程学报, 2001, 33(4): 458-462.
    (TAN Luo-rong, KONG Ling-wei.Fundamental property and microstructure model of red clay[J]. Chinese Journal of Geotechnical Engineering, 2001, 33(4): 458-462. (in Chinese))
    [4] 吕海波, 曾召田, 尹国强, 等. 广西红黏土矿物成分分析[J]. 工程地质学报, 2012, 20(5): 651-656.
    (LU Hai-bo, ZENG Zhao-tian, YIN Guo-qiang, et al.Analysis of mineral composition of red clay in Guangxi[J]. Journal of Engineering Geology, 2012, 20(5): 651-656. (in Chinese))
    [5] 赵艳林, 曾召田, 吕海波, 等. 浅层地能开采中土体的热湿迁移机制及力学性状研究综述与展望[J]. 工程地质学报, 2013, 21(2): 222-227.
    (ZHAO Yan-lin, ZENG Zhao-tian, LU Hai-bo, et al.Review and prospect of study on heat and moisture migration mechanism and mechanical behavior of soil in shallow geothermal energy exploitation[J]. Journal of Engineering Geology, 2013, 21(2): 222-227. (in Chinese))
    [6] ABU-HAMDEH N H. Thermal properties of soils as affected by density and water content[J]. Biosystems Engineering, 2003, 86(1): 97-102.
    [7] 苏天明, 刘彤, 李晓昭, 等. 南京地区土体热物理性质测试与分析[J]. 岩石力学与工程学报, 2006, 25(16): 1278-1283.
    (SU Tian-ming, LIU Tong, LI Xiao-zhao, et al.Test and analysis of thermal properties of soil in Nanjing district[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(16): 1278-1283. (in Chinese))
    [8] 王铁行, 刘自成, 卢靖. 黄土导热系数和比热容的实验研究[J]. 岩土力学, 2007, 28(4): 655-658.
    (WANG Tie-xing, LIU Zi-cheng, LU Jing.Experimental study on coefficient of thermal conductivity and specific volume heat of loess[J]. Rock and Soil Mechanics, 2007, 28(4): 655-658. (in Chinese))
    [9] 肖琳, 李晓昭, 赵晓豹, 等. 含水量与孔隙率对土体热导率影响的室内实验[J]. 解放军理工大学学报(自然科学版), 2008, 9(3): 241-247.
    (XIAO Lin, LI Xiao-zhao, ZHAO Xiao-bao, et al.Laboratory test on influences of moisture content and porosity on thermal conductivity of soils[J]. Journal of PLA University of Science and Technology (Natural Science Edition), 2008, 9(3): 241-247. (in Chinese))
    [10] 于明志, 曹西忠, 王善明, 等. 水分含量对土壤导热系数的影响及机理[J]. 山东建筑大学学报, 2012, 27(2): 152-154, 159.(YU Ming-zhi, CAO Xi-zhong, WANG Shan-ming, et al. Influence of water content on soil thermal conductivity and the mechanism[J]. Journal of Shandong Jianzhu University, 2012, 27(2): 152-154, 159. (in Chinese))
    [11] 栾英波, 郑桂森, 卫万顺. 北京平原区粉质黏土热导率影响因素实验研究[J]. 中国地质, 2013, 40(3): 981-988.
    (LUAN Ying-bo, ZHENG Gui-sen, WEI Wan-shun.The experimental study of the factors affecting the rate of thermal conductivity of silty clay in Beijing plain[J]. Geology China, 2013, 40(3): 981-988. (in Chinese))
    [12] 陈善雄, 陈守义. 砂土热导率的实验研究[J]. 岩土工程学报, 1994, 16(5):47-53.
    (CHEN Shan-xiong, CHEN Shou-yi.Experimental study on thermal conductivity of sands[J]. Chinese Journal of Geotechnical Engineering, 1994, 16(5): 47-53. (in Chinese))
    [13] 廖义玲, 余培厚. 红黏土的微结构及其概化模型[J]. 工程地质学报, 1994, 2(1): 27-37.
    (LIAO Yi-ling, YU Pei-hou.The microstructure and generalized model of red clay[J]. Journal of Engineering Geology, 1994, 2(1): 27-37. (in Chinese))
    [14] 廖义玲, 朱立军, 周训华. 土体中惰性孔隙及其物理力学属性的研究[J]. 工程勘察, 2001(1): 5-8.
    (LIAO Yi-ling, ZHU Li-jun, ZHOU Xun-hua.Study on inert pore in soil and its physical mechanic property[J]. Geotechnical Investigation & Surveying, 2001(1): 5-8. (in Chinese))
    [15] 曾召田. 岩溶地区红黏土热湿迁移及其对地源热泵系统换热性能的影响分析[D]. 南宁: 广西大学, 2014.
    (ZENG Zhao-tian.Research on heat and moisture migration of red clay and its influence on heat transfer performance of ground source heat pump system in karst region[D]. Nanning: Guangxi University,2014. (in Chinese))
    [16] 张延军, 于子望, 黄芮, 等. 岩土热导率测量和温度影响研究[J]. 岩土工程学报, 2009, 31(2): 213-217.
    (ZHANG Yan-jun, YU Zi-wang, HUANG Rui, et al.Measurement of thermal conductivity and temperature effect of geotechnical materials[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 213-217. (in Chinese))
    [17] 邵明安, 王全九, 黄明斌. 土壤物理学[M]. 北京: 高等教育出版社, 2006.
    (SHAO Ming-an, WANG Quan-jiu, HUANG Ming-bin.Soil physics[M]. Beijing: Higher Education Press, 2006. (in Chinese))
    [18] DE VRIES D A. Thermal properties of soils[M]// Physics of Plant Environment. VAN WIJK W R, Ed. Amsterdam: North-Holland Publishing Company, 1963: 210-235.
    [19] ABU-HAMDEH N H, KHDAIR A I, REEDER R C. A comparison of two methods used to evaluate thermal conductivity for some soils[J]. Heat and Mass Tranfer, 2001, 44: 1073-1078.
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出版历程
  • 收稿日期:  2017-04-13
  • 发布日期:  2018-08-24

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