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To improve the seepage monitoring level of pumped storage reservoirs, a discrimination method was proposed for seepage caused by geomembrane aperture damage, based on a seepage-sensing structure and the concept of an equivalent seepage aperture . First, the temperature rise difference between dry and wet conditions was acquired through active heating, and a logarithmic linear fit was performed after normalizing the temperature rise difference with respect to the seepage velocity. Then, a linear fit was established between the seepage velocity and the equivalent seepage aperture. The seepage condition was inferred based on field calibration tests combined with the characteristics of distributed temperature sensing (DTS) curve. Finally, laboratory tests were conducted for validation. The results show that the goodness-of-fit (R2) between differential temperature and the equivalent seepage aperture exceeds 0.96, and the relative error of seepage velocity is below 5%. 86% of the residuals between experimental and simulated temperature rise values fall within ±1℃, and the relative error of seepage velocity also remains below 5%, demonstrating the reliability of the simulations.

, authors=Chenchen JIN1, Yong DING**, 1, Denghua LI2, 3, authorsList=Chenchen JIN, Yong DING, Denghua LI, authorCompany=null, correspAuthors=Yong DING, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281616715914130365, articleId=1281616715276596153, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=基于感渗结构的土工膜等效渗流孔径判别方法, columnId=1277328337940902469, journalTitle=中国安全科学学报, columnName=安全技术与工程, runingTitle=null, highlight=null, articleAbstract=

为提高抽水蓄能水库渗流监测水平,针对土工膜孔径破坏引起的渗流,提出一种基于感渗结构与等效渗流孔径的土工膜孔径破坏渗流判别方法。首先,通过主动加热的方式得到干湿差温升值,将干湿差温升值与渗流速度归一化后进行对数线性拟合;然后,将渗流速度与等效渗流孔径进行线性拟合,通过现场标定试验并结合分布式光纤(DTS)曲线特征反演渗流情况;最后,开展室内试验进行验证。结果表明:等效渗流孔径的干湿差温升拟合优度R2均超过0.96,且渗流速度均小于5%。室内试验与数值模拟温升值的残差86%位于±1℃范围内;渗流速度均小于5%,证明数值模拟结果的可靠性。

, authors=金晨晨1, 丁勇副教授**, 1, 李登华高级工程师2, 3, authorsList=金晨晨, 丁勇副教授, 李登华高级工程师, authorCompany=null, correspAuthors=丁勇副教授, authorNote=

金晨晨(1998—),男,江苏溧阳人,硕士研究生,主要研究方向为水利工程结构健康监测。E-mail:

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** 丁勇(1977—), 男, 江苏海安人,博士,副教授,主要从事大坝结构健康监测领域方面的研究。E-mail:
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金晨晨(1998—),男,江苏溧阳人,硕士研究生,主要研究方向为水利工程结构健康监测。E-mail:

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金晨晨(1998—),男,江苏溧阳人,硕士研究生,主要研究方向为水利工程结构健康监测。E-mail:

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基于感渗结构的土工膜等效渗流孔径判别方法
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金晨晨 1 , 丁勇副教授 **, 1 , 李登华高级工程师 2, 3
中国安全科学学报 | 安全技术与工程 2026,36(2): 145-152
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中国安全科学学报 |安全技术与工程 2026 , 36 (2) : 145 -152
基于感渗结构的土工膜等效渗流孔径判别方法
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金晨晨1 , 丁勇副教授**, 1 , 李登华高级工程师2, 3
作者信息
  • 1南京理工大学 安全科学与工程学院,江苏 南京 210094
  • 2南京水利科学研究院,江苏 南京 210029
  • 3水利部水库大坝安全重点实验室,江苏 南京 210024
通讯作者:
** 丁勇(1977—), 男, 江苏海安人,博士,副教授,主要从事大坝结构健康监测领域方面的研究。E-mail:
作者简介:

金晨晨(1998—),男,江苏溧阳人,硕士研究生,主要研究方向为水利工程结构健康监测。E-mail:

Equivalent permeation aperture identification method for geomembranes based on seepage-sensing structure
Chenchen JIN1 , Yong DING**, 1 , Denghua LI2, 3
Affiliations
  • 1School of Safety Science and Engineering, Nanjing University of Science and Technology, Nanjing Jiangsu 210094, China
  • 2Nanjing Hydraulic Research Institute, Nanjing Jiangsu 210029, China
  • 3Key Laboratory of Reservoir Dam Safety, Nanjing Jiangsu 210024, China
出版时间: 2026-02-28 doi: 10.16265/j.cnki.issn1003-3033.2026.02.0588
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为提高抽水蓄能水库渗流监测水平,针对土工膜孔径破坏引起的渗流,提出一种基于感渗结构与等效渗流孔径的土工膜孔径破坏渗流判别方法。首先,通过主动加热的方式得到干湿差温升值,将干湿差温升值与渗流速度归一化后进行对数线性拟合;然后,将渗流速度与等效渗流孔径进行线性拟合,通过现场标定试验并结合分布式光纤(DTS)曲线特征反演渗流情况;最后,开展室内试验进行验证。结果表明:等效渗流孔径的干湿差温升拟合优度R2均超过0.96,且渗流速度均小于5%。室内试验与数值模拟温升值的残差86%位于±1℃范围内;渗流速度均小于5%,证明数值模拟结果的可靠性。

土工膜  /  渗流孔径  /  感渗结构  /  渗流判别  /  数值模拟

To improve the seepage monitoring level of pumped storage reservoirs, a discrimination method was proposed for seepage caused by geomembrane aperture damage, based on a seepage-sensing structure and the concept of an equivalent seepage aperture . First, the temperature rise difference between dry and wet conditions was acquired through active heating, and a logarithmic linear fit was performed after normalizing the temperature rise difference with respect to the seepage velocity. Then, a linear fit was established between the seepage velocity and the equivalent seepage aperture. The seepage condition was inferred based on field calibration tests combined with the characteristics of distributed temperature sensing (DTS) curve. Finally, laboratory tests were conducted for validation. The results show that the goodness-of-fit (R2) between differential temperature and the equivalent seepage aperture exceeds 0.96, and the relative error of seepage velocity is below 5%. 86% of the residuals between experimental and simulated temperature rise values fall within ±1℃, and the relative error of seepage velocity also remains below 5%, demonstrating the reliability of the simulations.

geomembrane  /  seepage aperture  /  seepage-sensing structure  /  seepage identification  /  numerical simulation
金晨晨, 丁勇副教授, 李登华高级工程师. 基于感渗结构的土工膜等效渗流孔径判别方法. 中国安全科学学报, 2026 , 36 (2) : 145 -152 . DOI: 10.16265/j.cnki.issn1003-3033.2026.02.0588
Chenchen JIN, Yong DING, Denghua LI. Equivalent permeation aperture identification method for geomembranes based on seepage-sensing structure[J]. China Safety Science Journal, 2026 , 36 (2) : 145 -152 . DOI: 10.16265/j.cnki.issn1003-3033.2026.02.0588
  • 国家重点研发计划项目(2024YFC3210703)
  • 国家自然科学基金长江水科学研究联合基金资助(U2240221)
  • 中央级公益性科研院所基本科研业务费专项资金资助(Yk325002; Y724011)
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doi: 10.16265/j.cnki.issn1003-3033.2026.02.0588
  • 接收时间:2025-09-14
  • 首发时间:2026-07-08
  • 出版时间:2026-02-28
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出版历史
  • 收稿日期:2025-09-14
  • 修回日期:2025-12-16
基金
国家重点研发计划项目(2024YFC3210703)
国家自然科学基金长江水科学研究联合基金资助(U2240221)
中央级公益性科研院所基本科研业务费专项资金资助(Yk325002; Y724011)
作者信息
    1南京理工大学 安全科学与工程学院,江苏 南京 210094
    2南京水利科学研究院,江苏 南京 210029
    3水利部水库大坝安全重点实验室,江苏 南京 210024

通讯作者:

** 丁勇(1977—), 男, 江苏海安人,博士,副教授,主要从事大坝结构健康监测领域方面的研究。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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