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山东大学学报 (工学版) ›› 2026, Vol. 56 ›› Issue (2): 76-81.doi: 10.6040/j.issn.1672-3961.0.2024.300

• 土木工程 • 上一篇    下一篇

基于有限元仿真钢筋混凝土电阻率预估模型

贾刘建1,胡杰1,卞雷祥1*,徐展1,史皓天1,王冲1,刘海龙2   

  1. 1.南京理工大学安全科学与工程学院(应急管理学院), 江苏 南京 210094;2.南京理工大学机械工程学院, 江苏 南京 210094
  • 出版日期:2026-04-20 发布日期:2026-04-13
  • 作者简介:贾刘建(1999— ),男,江苏宿迁人,硕士研究生,主要研究方向为钢筋砼物性参数. E-mail:492787100@qq.com. *通信作者简介:卞雷祥(1985— ),男,江苏泗阳人,教授,博士生导师,博士,主要研究方向为地下目标无人化探测与识别. E-mail:lxbian@163.com
  • 基金资助:
    国家自然科学基金青年科学基金资助项目(52209133)

Prediction model of reinforced concrete resistivity based on finite element simulation

JIA Liujian1, HU Jie1, BIAN Leixiang1*, XU Zhan1, SHI Haotian1, WANG Chong1, LIU Hailong2   

  1. JIA Liujian1, HU Jie1, BIAN Leixiang1*, XU Zhan1, SHI Haotian1, WANG Chong1, LIU Hailong2(1. School of Safety Science and Engineering(School of Emergency Management), Nanjing university of science &
    technology, Nanjing 210094, Jiangsu, China;
    2. School of Mechanical Engineering, Nanjing university of Science &
    Technology, Nanjing 210094, Jiangsu, China
  • Online:2026-04-20 Published:2026-04-13

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摘要： 为从瞬变电磁信号中准确分析地下人工构筑物信息,提高反演成像准确性,需明确设定地下人工介质电阻率初值,以提取其响应。基于有限元分析研究四电极法所得钢筋混凝土电阻率规律,揭示钢筋混凝土厚度与钢筋间距对电阻率的影响;分析电极间距对测试结果的影响,提出电极优化布置方法及预估函数模型;制备不同工况钢筋混凝土进行试验,对比试验数据与预测值并分析均方误差,验证了模型优势。

关键词: 钢筋混凝土, 四电极法, 有限元分析, 混凝土电阻率, 钢筋间距, 混凝土厚度

Abstract: In order to accurately analyze the information of underground artificial structures from transient electromagnetic signals and improve the accuracy of inversion imaging, it was necessary to clearly set the initial value of underground artificial medium resistivity to extract its response. Based on the finite element analysis, the resistivity law of reinforced concrete obtained by the four-electrode method was studied, and the influence of reinforced concrete thickness and steel bar spacing on resistivity was revealed. The influence of electrode spacing on the test results was analyzed, and the optimal electrode arrangement method and prediction function model were proposed. The reinforced concrete under different working conditions was prepared and tested. The experimental data were compared with the predicted values and the mean square error was analyzed to verify the advantages of the model.

Key words: reinforced concrete, four-electrode method, finite element analysis, concrete resistivity, bar spacing, concrete thickness

中图分类号: 

  • TU375.3
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