Article(id=1152342295056626174, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1704124800000, receivedDateStr=2024-01-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1752669412626, onlineDateStr=2025-07-16, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752669412626, onlineIssueDateStr=2025-07-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752669412626, creator=13701087609, updateTime=1752669412626, updator=13701087609, issue=Issue{id=1152342291831681269, tenantId=1146029695717560320, journalId=1146119893612605453, year='2025', volume='43', issue='5', pageStart='569', pageEnd='710', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1752669411857, creator=13701087609, updateTime=1753694458107, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156641647501894486, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156641647501894487, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=610, endPage=619, ext={EN=ArticleExt(id=1152342295367004671, articleId=1152342295056626174, tenantId=1146029695717560320, journalId=1146119893612605453, language=EN, title=Study on the influence of stratified ground thermophysical properties on the heat transfer performance of U-bend deep borehole heat exchanger, columnId=null, journalTitle=Renewable Energy Resources, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Ubend Deep Borehole Heat Exchanger (UDBHE) has attracted much attention because it can effectively exploit deep geothermal energy and has high heat transfer performance. The thermophysical properties of mediumdeep ground generally change with depth, but there is a lack of indepth study on the influence of thermophysical properties of stratified ground on the heat transfer performance of Ubend deep borehole heat exchanger. Based on the UDBHE semi analytical heat transfer model established by the authors, the influence of thermophysical properties (thermal conductivity and volumetric heat capacity)of stratified ground on the heat transfer performance of UDBHE is studied. The results show that the thermal conductivity of each layer of ground has a great influence on the heat transfer performance of UDBHE, while the volumetric heat capacity of ground in each layer also has a certain influence, and the influence increases with the increase of ground layer depth. With the increase of time, the influence of ground thermal conductivity on the heat transfer performance of UDBHE gradually increases, while the influence of ground volumetric heat capacity on the heat transfer performance of UDBHE is basically unchanged. By keeping the weighted average values of the thermal conductivities of all ground layers constant, the heterogeneity of ground thermal conductivity has a great influence on the heat transfer performance of UDBHE, and the larger degree of heterogeneity of ground thermal conductivity would promote the heat transfer performance of UDBHE, otherwise it will inhibit the heat transfer performance of UDBHE. Similarly, the heterogeneity of volumetric heat capacity of ground also has a certain influence on the heat transfer performance of UDBHE, but its influence changes slightly with time. The research results provide important reference value for UDBHE performance prediction and optimization.
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化石燃料一直在全球能源结构中占据主要份额,其大量使用带来了严重的环境问题和不可持续性的能源消耗。为了减少化石能源所引起的CO2排放量,我国于2020年正式提出了在2060年实现“碳中和”的目标,并大力发展清洁的可再生能源。地热能作为一种清洁环保、稳定的可再生能源,其高效开发与利用对于实现“碳中和”的目标具有重大意义。目前,地热能利用形式以地源热泵为主,其中,2020年地源热泵系统利用的地热资源占全球地热资源总利用量的58.8%]。为了进一步开采中深层地热能,一些研究者提出了中深层地埋管换热器的概念,。其中,U型中深层地埋管换热器(Ubend Deep Borehole Heat Exchanger, UDBHE)具有较高的传热性能和良好的应用前景,因此受到越来越多的关注。岩土热物性会随深度而变化,并且变化较大,因此对地埋管换热器进行传热分析时不能将岩土看作均匀介质。岩土热物性会影响地埋管的传热性能,而分层岩土热物性(热导率和体积比热容)对浅层地埋管的传热性能有重要影响。现有的UDBHE 研究文献表明,岩土热导率是影响UDBHE 传热性能的重要因素[10,然而目前考虑分层岩土热物性的 UDBHE 文献较少。Bao LL和Li C分别结合某实际 UDBHE 工程,在考虑岩土分层的基础上建立了 UDBHE 的解析传热模型,并对提出的模型进行了验证[11,12]。李超考虑了岩土分层情况,基于现场试验建立了 UDBHE 的三维数值模型,并分析了 UDBHE 的取热性能[13,14]。而Zhang W K简化了 UDBHE 模型,假设岩土为均匀介质或均匀层状介质,建立了仅考虑轴向与径向传热的二维数值模型,以便于分析 UDBHE的传热过程[15,16]然而,上述 UDBHE 文献在对 UDBHE 进行传热分析时仅考虑了分层岩土热物性,并未阐明分层岩土热物性对 UDBHE 传热性能的影响,缺乏分层岩土热物性对 UDBHE影响的深入研究。因此,本文基于团队前期建立的 UDBHE 半解析传热模型,分别研究了各层岩土热物性(热导率和体积比热容)以及岩土热物性非均匀性对 UDBHE传热性能的影响,以揭示分层岩土热物性对UDBHE 传热性能的影响规律。
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1 School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan 243002 China), AuthorCompanyExt(id=1159145993377010550, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, companyId=1159145993360233332, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 安徽工业大学 建筑工程学院 安徽马鞍山 243002)])], figs=[ArticleFig(id=1159145995000206251, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 1, caption=
Schematic and simplified diagrams of UDBHE, figureFileSmall=GbOXI5EdSsJkvaZNwRG29w==, figureFileBig=MiZH8rpJ1vnERde12+9nsg==, tableContent=null), ArticleFig(id=1159145995063120813, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 1, caption=
UDBHE 的示意图和简化图, figureFileSmall=GbOXI5EdSsJkvaZNwRG29w==, figureFileBig=MiZH8rpJ1vnERde12+9nsg==, tableContent=null), ArticleFig(id=1159145995113452463, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 2, caption=
Influences of thermal conductivity of each layer of ground on the outlet fluid temperature within 120 days, figureFileSmall=tpyalCe+QlIhjxrF/KuXvg==, figureFileBig=XaxYWK7k/6vk124WKEyoFw==, tableContent=null), ArticleFig(id=1159145995159589809, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 2, caption=
各层岩土热导率对 ${120}\mathrm{\;d}$ 内出口流体温度的影响, figureFileSmall=tpyalCe+QlIhjxrF/KuXvg==, figureFileBig=XaxYWK7k/6vk124WKEyoFw==, tableContent=null), ArticleFig(id=1159145995209921459, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 3, caption=
Influences of thermal conductivity of each layer of ground on the fluid temperature distribution at 120 days, figureFileSmall=1haSQ7kfL17BuJjYI5ERcQ==, figureFileBig=14MHYN2DN0llA14ULBV2Lw==, tableContent=null), ArticleFig(id=1159145995264447413, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 3, caption=
各层岩土热导率对 ${120}\mathrm{\;d}$ 时的流体温度分布的影响, figureFileSmall=1haSQ7kfL17BuJjYI5ERcQ==, figureFileBig=14MHYN2DN0llA14ULBV2Lw==, tableContent=null), ArticleFig(id=1159145995327361974, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 4, caption=
Influences of volumetric heat capacity of each layer of ground on the outlet fluid temperature within 120 days, figureFileSmall=eYkzyQ4uJEFStiBbQsVH/w==, figureFileBig=SmDj6OVVv/QToT7Kcaddqg==, tableContent=null), ArticleFig(id=1159145995381887928, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 4, caption=
各层岩土体积比热容对${120}\mathrm{\;d}$ 内出口流体温度的影响, figureFileSmall=eYkzyQ4uJEFStiBbQsVH/w==, figureFileBig=SmDj6OVVv/QToT7Kcaddqg==, tableContent=null), ArticleFig(id=1159145995423830970, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 5, caption=
Influences of volumetric heat capacity of each layer of ground on the fluid temperature distribution at 120 days, figureFileSmall=PU6uneM3wWPjGvgmj31ohA==, figureFileBig=jJoBusZqEEp7nKs76HGs4Q==, tableContent=null), ArticleFig(id=1159145995478356924, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 5, caption=
各层岩土体积比热容对 ${120}\mathrm{\;d}$ 时的流体温度分布的影响, figureFileSmall=PU6uneM3wWPjGvgmj31ohA==, figureFileBig=jJoBusZqEEp7nKs76HGs4Q==, tableContent=null), ArticleFig(id=1159145995532882878, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 6, caption=
Influence of heterogeneity of ground thermal conductivity on the outlet fluid temperature of UDBHE, figureFileSmall=S4dHSgRc8cXJELHAGbrk6A==, figureFileBig=d9Km+gST6bF9Msi9cV3Iag==, tableContent=null), ArticleFig(id=1159145995587408832, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 6, caption=
岩土热导率非均匀性对 UDBHE 出口流体温度的影响, figureFileSmall=S4dHSgRc8cXJELHAGbrk6A==, figureFileBig=d9Km+gST6bF9Msi9cV3Iag==, tableContent=null), ArticleFig(id=1159145995633546178, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 7, caption=
Influence of heterogeneity of volumetric heat capacity of ground on the outlet fluid temperature of UDBHE, figureFileSmall=ELSyw6ltJHU/W3+PAp4FPA==, figureFileBig=WgAgn59+CNtyaE1K7pDZQg==, tableContent=null), ArticleFig(id=1159145995688072132, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 7, caption=
岩土体积比热容非均匀性对 UDBHE 出口流体温度的影响, figureFileSmall=ELSyw6ltJHU/W3+PAp4FPA==, figureFileBig=WgAgn59+CNtyaE1K7pDZQg==, tableContent=null), ArticleFig(id=1159145995755180998, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Fig. 8, caption=
Influence of heterogeneity of thermophysical properties of ground on the fluid temperature distribution of UDBHE, figureFileSmall=lE0AwY8VFNYTvIoCYVHWOw==, figureFileBig=PXEkewx34HRQEfGrM7Annw==, tableContent=null), ArticleFig(id=1159145995826484167, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=图 8, caption=
岩土热物性非均匀性对 UDBHE 流体温度分布的影响, figureFileSmall=lE0AwY8VFNYTvIoCYVHWOw==, figureFileBig=PXEkewx34HRQEfGrM7Annw==, tableContent=null), ArticleFig(id=1159145995876815817, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Table 1, caption=
Related parameters of UDBHE, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 对接直管长度 ${L}_{1}/\mathrm{m}$ | 1700 |
| 对接斜管长度 ${L}_{2}/\mathrm{m}$ | 1 261 |
| 直管长度 ${L}_{3}/\mathrm{m}$ | 2781 |
| 对接直管外半径 ${r}_{\mathrm{o}1}/\mathrm{m}$ | 0.069 9 |
| 对接直管内半径 ${r}_{\mathrm{{il}}}/\mathrm{m}$ | 0.062 2 |
| 对接斜管外半径 ${r}_{\mathrm{o}2}/\mathrm{m}$ | 0.069 9 |
| 对接斜管内半径 ${r}_{\mathrm{i}2}/\mathrm{m}$ | 0.062 2 |
| 直管外半径 ${r}_{\mathrm{o}3}/\mathrm{m}$ | 0.088 9 |
| 直管内半径 ${r}_{\mathrm{i}3}/\mathrm{m}$ | 0.079 7 |
| 钻孔半径 ${r}_{\mathrm{b}}/\mathrm{m}$ | 0.1207 |
| 保温层外半径 ${r}_{\mathrm{o}4}/\mathrm{m}$ | 0.1089 |
| 保温层长度 ${L}_{\mathrm{{ins}}}/\mathrm{m}$ | 580 |
| 对接斜管沿深度的偏转角度 $\alpha /\left( {}^{ \circ }\right)$ | 31 |
| 回填土体积比热容 ${\left( \rho c\right) }_{\mathrm{{ce}}}/\mathrm{J} \cdot {\left( {\mathrm{m}}^{3} \cdot \mathrm{K}\right) }^{-1}$ | ${2.1} \times {10}^{6}$ |
| 回填土热导率 ${\lambda }_{\mathrm{{ce}}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 1.34 |
| 流体的体积流量 $\dot{V}/{\mathrm{m}}^{3} \cdot {\mathrm{h}}^{-1}$ | 23.5 |
| 保温层体积比热容 ${\left( \rho c\right) }_{\text{ins }}/\mathrm{J} \cdot {\left( {\mathrm{m}}^{3} \cdot \mathrm{K}\right) }^{-1}$ | ${3.06} \times {10}^{5}$ |
| 保温层热导率 ${\lambda }_{\text{ins }}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 0.031 2 |
| 流体热导率 ${\lambda }_{\mathrm{f}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 0.615 |
| 地表温度 ${T}_{\mathrm{{sur}}}/{}^{ \circ }\mathrm{C}$ | 20.524 |
| 等效管热导率 ${\lambda }_{\mathrm{p}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 14.48 |
| 地温梯度 $a/C \cdot {\mathrm{m}}^{-1}$ | 0.027 03 |
| 热输出功率 ${Q}_{\text{out }}/\mathrm{W}$ | 574 200 |
), ArticleFig(id=1159145995952313291, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=表 1, caption=
UDBHE 的相关参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 对接直管长度 ${L}_{1}/\mathrm{m}$ | 1700 |
| 对接斜管长度 ${L}_{2}/\mathrm{m}$ | 1 261 |
| 直管长度 ${L}_{3}/\mathrm{m}$ | 2781 |
| 对接直管外半径 ${r}_{\mathrm{o}1}/\mathrm{m}$ | 0.069 9 |
| 对接直管内半径 ${r}_{\mathrm{{il}}}/\mathrm{m}$ | 0.062 2 |
| 对接斜管外半径 ${r}_{\mathrm{o}2}/\mathrm{m}$ | 0.069 9 |
| 对接斜管内半径 ${r}_{\mathrm{i}2}/\mathrm{m}$ | 0.062 2 |
| 直管外半径 ${r}_{\mathrm{o}3}/\mathrm{m}$ | 0.088 9 |
| 直管内半径 ${r}_{\mathrm{i}3}/\mathrm{m}$ | 0.079 7 |
| 钻孔半径 ${r}_{\mathrm{b}}/\mathrm{m}$ | 0.1207 |
| 保温层外半径 ${r}_{\mathrm{o}4}/\mathrm{m}$ | 0.1089 |
| 保温层长度 ${L}_{\mathrm{{ins}}}/\mathrm{m}$ | 580 |
| 对接斜管沿深度的偏转角度 $\alpha /\left( {}^{ \circ }\right)$ | 31 |
| 回填土体积比热容 ${\left( \rho c\right) }_{\mathrm{{ce}}}/\mathrm{J} \cdot {\left( {\mathrm{m}}^{3} \cdot \mathrm{K}\right) }^{-1}$ | ${2.1} \times {10}^{6}$ |
| 回填土热导率 ${\lambda }_{\mathrm{{ce}}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 1.34 |
| 流体的体积流量 $\dot{V}/{\mathrm{m}}^{3} \cdot {\mathrm{h}}^{-1}$ | 23.5 |
| 保温层体积比热容 ${\left( \rho c\right) }_{\text{ins }}/\mathrm{J} \cdot {\left( {\mathrm{m}}^{3} \cdot \mathrm{K}\right) }^{-1}$ | ${3.06} \times {10}^{5}$ |
| 保温层热导率 ${\lambda }_{\text{ins }}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 0.031 2 |
| 流体热导率 ${\lambda }_{\mathrm{f}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 0.615 |
| 地表温度 ${T}_{\mathrm{{sur}}}/{}^{ \circ }\mathrm{C}$ | 20.524 |
| 等效管热导率 ${\lambda }_{\mathrm{p}}/\mathrm{W} \cdot {\left( \mathrm{m} \cdot \mathrm{K}\right) }^{-1}$ | 14.48 |
| 地温梯度 $a/C \cdot {\mathrm{m}}^{-1}$ | 0.027 03 |
| 热输出功率 ${Q}_{\text{out }}/\mathrm{W}$ | 574 200 |
), ArticleFig(id=1159145996002644941, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Table 2, caption=
Numbers of layered ground under the condition of different thermal conductivities and the same volumetric heat capacity for each layer of ground, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土热导率/W·(m·K) | 岩土体积 比热容 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 1 390~2 085 | 2 085~2 780 |
| k0 | 3.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}1$ | 2.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}2$ | 4.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k3 | 3.0 | 2.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k4 | 3.0 | 4.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k5 | 3.0 | 3.0 | 2.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k6 | 3.0 | 3.0 | 4.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}7$ | 3.0 | 3.0 | 3.0 | 2.0 | ${2.4} \times {10}^{6}$ |
| k8 | 3.0 | 3.0 | 3.0 | 4.0 | ${2.4} \times {10}^{6}$ |
), ArticleFig(id=1159145996082336719, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=表 2, caption=
各层岩土在不同热导率和相同体积比热容条件下的分层岩土编号, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土热导率/W·(m·K) | 岩土体积 比热容 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 1 390~2 085 | 2 085~2 780 |
| k0 | 3.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}1$ | 2.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}2$ | 4.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k3 | 3.0 | 2.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k4 | 3.0 | 4.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k5 | 3.0 | 3.0 | 2.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| k6 | 3.0 | 3.0 | 4.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}7$ | 3.0 | 3.0 | 3.0 | 2.0 | ${2.4} \times {10}^{6}$ |
| k8 | 3.0 | 3.0 | 3.0 | 4.0 | ${2.4} \times {10}^{6}$ |
), ArticleFig(id=1159145996136862673, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Table 3, caption=
Numbers of layered ground under the condition of different volumetric heat capacities and the same thermal conductivity for each layer of ground, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土体积比热容/J· | 岩土 热导率 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 390~2085 | 2 085~2 780 |
| C0 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C1 | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C2 | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C3 | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C4 | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C5 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C6 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C7 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | 3.0 |
| C8 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | 3.0 |
), ArticleFig(id=1159145996220748755, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=表 3, caption=
各层岩土在不同体积比热容和相同热导率条件下的分层岩土编号, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土体积比热容/J· | 岩土 热导率 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 390~2085 | 2 085~2 780 |
| C0 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C1 | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C2 | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C3 | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C4 | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C5 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C6 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C7 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | 3.0 |
| C8 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | 3.0 |
), ArticleFig(id=1159145996300440534, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Table 4, caption=
Numbers of layered ground for heterogeneous ground thermal conductivity, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土热导率/W·(m·K) | 岩土体积 比热容 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 1 390~2 085 | 2085~2 780 |
| k0 | 3.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}9$ | 2.2 | 2.6 | 3.4 | 3.8 | ${2.4} \times {10}^{6}$ |
| k10 | 2.0 | 2.0 | 4.0 | 4.0 | ${2.4} \times {10}^{6}$ |
| k11 | 3.8 | 3.4 | 2.6 | 2.2 | ${2.4} \times {10}^{6}$ |
| k12 | 4.0 | 4.0 | 2.0 | 2.0 | ${2.4} \times {10}^{6}$ |
), ArticleFig(id=1159145996350772184, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=表 4, caption=
非均匀岩土热导率条件下的分层岩土编号, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土热导率/W·(m·K) | 岩土体积 比热容 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 1 390~2 085 | 2085~2 780 |
| k0 | 3.0 | 3.0 | 3.0 | 3.0 | ${2.4} \times {10}^{6}$ |
| $\mathrm{k}9$ | 2.2 | 2.6 | 3.4 | 3.8 | ${2.4} \times {10}^{6}$ |
| k10 | 2.0 | 2.0 | 4.0 | 4.0 | ${2.4} \times {10}^{6}$ |
| k11 | 3.8 | 3.4 | 2.6 | 2.2 | ${2.4} \times {10}^{6}$ |
| k12 | 4.0 | 4.0 | 2.0 | 2.0 | ${2.4} \times {10}^{6}$ |
), ArticleFig(id=1159145996426269658, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=EN, label=Table 5, caption=
Numbers of layered ground for heterogeneous volumetric heat capacity of ground, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土体积比热容/J· | 岩土 热导率 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 390~2085 | 2085~2 780 |
| C0 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C9 | ${1.8} \times {10}^{6}$ | ${2.2} \times {10}^{6}$ | ${2.6} \times {10}^{6}$ | ${3.0} \times {10}^{6}$ | 3.0 |
| C10 | ${1.6} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | 3.0 |
| C11 | ${3.0} \times {10}^{6}$ | ${2.6} \times {10}^{6}$ | ${2.2} \times {10}^{6}$ | ${1.8} \times {10}^{6}$ | 3.0 |
| C12 | ${3.2} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | 3.0 |
), ArticleFig(id=1159145996476601308, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295056626174, language=CN, label=表 5, caption=
非均匀岩土体积比热容条件下的分层岩土编号, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 岩土体积比热容/J· | 岩土 热导率 |
| 深度/m | 深度/m | 深度/m | 深度/m |
| 0~695 | 695~1 390 | 390~2085 | 2085~2 780 |
| C0 | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | ${2.4} \times {10}^{6}$ | 3.0 |
| C9 | ${1.8} \times {10}^{6}$ | ${2.2} \times {10}^{6}$ | ${2.6} \times {10}^{6}$ | ${3.0} \times {10}^{6}$ | 3.0 |
| C10 | ${1.6} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | 3.0 |
| C11 | ${3.0} \times {10}^{6}$ | ${2.6} \times {10}^{6}$ | ${2.2} \times {10}^{6}$ | ${1.8} \times {10}^{6}$ | 3.0 |
| C12 | ${3.2} \times {10}^{6}$ | ${3.2} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | ${1.6} \times {10}^{6}$ | 3.0 |
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