人民长江2026，Vol.57Issue(2)：197-204,8.DOI:10.16232/j.cnki.1001-4179.2026.02.024
不同渗漏通道填充物下土坝渗漏热成像模型试验
Experimental model study on thermal imaging of embankment dam leakage with different filling materials
摘要
Abstract
Physical models serve as a vital tool in the research of dam piping leakage detection methods,playing a crucial role in revealing dam leakage mechanisms and advancing leakage detection technologies.This paper comprehensively reviews and ana-lyzes the current research status and progress in physical model experiments for dam piping leakage,and proposes an outdoor mod-el design for homogeneous earth dam leakage detection based on infrared thermal imaging.Using clay from East China as the dam construction material,three different fillers—edible salt,sponge,and fine sand—were pre-embedded to simulate leakage chan-nels,thereby investigating concentrated leakage phenomena under various leakage modes.The experimental results show that dif-ferent fillers significantly influence the onset time of leakage and the characteristics of seepage points.Specifically,channels filled with edible salt exhibited the shortest leakage onset time,with seepage points developing vertically along the direction of gravity;channels filled with sponge demonstrated stable leakage,with seepage points showing a gradual circular expansion trend;while channels filled with fine sand exhibited the slowest leakage rate,with seepage points remaining relatively confined in a narrow,strip-like pattern.The devised homogeneous earth dam model scheme can effectively simulate the characteristics of leakage are-as,providing a valuable experimental platform for applied research on infrared thermography in dam leakage detection and offering insights and references for similar model studies.关键词
管涌渗漏/均质土坝/出渗时间/出渗特征/红外热成像Key words
piping leakage/homogeneous earth dam/extravasation time/extravasation characteristics/infrared thermal imaging分类
建筑与水利引用本文复制引用
朱凡,谷艳昌,陈伟,吴云星,庞琼,周稳忠..不同渗漏通道填充物下土坝渗漏热成像模型试验[J].人民长江,2026,57(2):197-204,8.基金项目
国家重点研发计划项目(2024YFC3210703) （2024YFC3210703）
南京水利科学研究院研究生学位论文基金项目(Yy724007) （Yy724007）
中央级公益性科研院所基本科研业务费项目(Y724005) （Y724005）
南京水利科学研究院基本科研业务费科研创新团队建设项目(Y722003) （Y722003）
