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Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters
Tian, Baoqing1,2; Kong, Yanlong1,2; Gong, Yulie3; Ye, Cantao3; Pang, Zhonghe1,2; Wang, Jiyang1,2; Qin, Peirui4
2020-07-01
发表期刊ENGINEERING GEOLOGY
ISSN0013-7952
卷号272页码:9
通讯作者Tian, Baoqing(tianbaoqing@mail.iggcas.ac.cn)
摘要Thermal conductivity is an important physical property of geological formations. For example, a comprehensive assessment of the thermal conductivity variations in the shallow ground surrounding a heat exchanger borehole can be used to determine the installation parameters of a ground-source heat pump. However, in some locations, it is not possible to measure thermal conductivity directly. One of the most common methods to indirectly infer thermal conductivity is to establish correlations between thermal conductivity and various geophysical parameters. By utilising test data acquired from drilling sites and ascertaining the corresponding geophysical parameters via non-invasive geophysical methods, such correlations can be obtained. At 11 test sites, the thermal conductivities were measured in situ via thermal response testing, and the corresponding values for the S-wave velocity and density were calculated using the Microtremor survey method (MSM). The correlations between the thermal conductivity, S-wave velocity, and density in the tested shallow ground were built by exponential fitting. By utilising the established correlations, two-dimensional (2D) cross-sections along the microtremor survey line were created to illustrate the thermal conductivity variations in the shallow ground. These results demonstrate that this approach can be used to infer the thermal conductivities of areas that cannot be tested directly.
关键词Thermal conductivity S-wave velocity Density Correlation Shallow ground
DOI10.1016/j.enggeo.2020.105633
关键词[WOS]COMPRESSIONAL WAVE VELOCITY ; ROCKS
收录类别SCI
语种英语
资助项目National Major Project of China[2017ZX05008-007] ; National Key R&D Program of China[2019YFB1504101]
WOS研究方向Engineering ; Geology
项目资助者National Major Project of China ; National Key R&D Program of China
WOS类目Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号WOS:000537626200029
出版者ELSEVIER
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/27227
专题中国科学院广州能源研究所
通讯作者Tian, Baoqing
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510650, Peoples R China
4.Hulunbeier Subsidiary Daqing Oilfield Co LTD, Daqing 163000, Peoples R China
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GB/T 7714
Tian, Baoqing,Kong, Yanlong,Gong, Yulie,et al. Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters[J]. ENGINEERING GEOLOGY,2020,272:9.
APA Tian, Baoqing.,Kong, Yanlong.,Gong, Yulie.,Ye, Cantao.,Pang, Zhonghe.,...&Qin, Peirui.(2020).Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters.ENGINEERING GEOLOGY,272,9.
MLA Tian, Baoqing,et al."Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters".ENGINEERING GEOLOGY 272(2020):9.
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