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Effect of Mechanical Damage on the Thermal Conductivity of Granite

文献类型：期刊论文

作者Li, Zheng-Wei3; Feng, Xia-Ting3; Zhang, Yan-Jun2; Gong, Yan-Hua3; Zhu, Guo-Qiang1
刊名ROCK MECHANICS AND ROCK ENGINEERING
出版日期2020-03-01
卷号53期号:3页码:1039-1051
关键词Thermal conductivity Mechanical damage Optical scanning Thermal inhomogeneity Water saturation
ISSN号0723-2632
DOI10.1007/s00603-019-01956-9
英文摘要In this work, the effect of mechanical damage on the thermal conductivity of granite was experimentally investigated. Granite samples were artificially damaged through cyclic loading and unloading tests, with the strain evolution and acoustic emission activity monitored simultaneously. P-Wave velocity of the damaged samples was tested to evaluate the damage effect. Thermal conductivity of the undamaged and damaged granite samples was tested using optical scanning method. The influence of mechanical damage on thermal conductivity was analyzed. Thermal conductivity difference in different testing directions was analyzed based on the experiment results in six scanning lines on the two surfaces of each disk sample. The results indicate that thermal conductivity of damaged samples reduced compared with that of the undamaged samples, while the thermal inhomogeneity factor increased. Thermal conductivity increased in water-saturated condition for both undamaged and damaged samples. The increased rate of damaged samples was bigger than that of the undamaged samples. The mechanical damage treatment caused the increase in the thermal conductivity difference in different testing directions. The difference decreased when samples were water saturated. Research results in this work can provide better knowledge to the evolution mechanism of thermal conductivity of engineering rock masses.
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000522733700005
出版者SPRINGER WIEN
源URL[http://119.78.100.198/handle/2S6PX9GI/23818]  
专题中科院武汉岩土力学所
通讯作者Li, Zheng-Wei
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
2.Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China
3.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zheng-Wei,Feng, Xia-Ting,Zhang, Yan-Jun,et al. Effect of Mechanical Damage on the Thermal Conductivity of Granite[J]. ROCK MECHANICS AND ROCK ENGINEERING,2020,53(3):1039-1051.
APA Li, Zheng-Wei,Feng, Xia-Ting,Zhang, Yan-Jun,Gong, Yan-Hua,&Zhu, Guo-Qiang.(2020).Effect of Mechanical Damage on the Thermal Conductivity of Granite.ROCK MECHANICS AND ROCK ENGINEERING,53(3),1039-1051.
MLA Li, Zheng-Wei,et al."Effect of Mechanical Damage on the Thermal Conductivity of Granite".ROCK MECHANICS AND ROCK ENGINEERING 53.3(2020):1039-1051.

入库方式： OAI收割

来源：武汉岩土力学研究所

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