基于地铁某线路的典型粘性土层热物理参数测评研究

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中图分类号：TQ172.4+2 文献标志码：A文章编号：1001-5922（2025）12-0019-04

Abstract：Inorder toclarifythe thermophysical properties of clayin Zhengzhou Metro Line xand its influenceon the project，undisturbed claysamples werecolected at diffrent stationsof the line，and indoor geotechnical ests and thermophysical parameter tests were caried out.Among them，the thermal conductivity is measured by DRPL-I thermal conductivity tester，the specific heat capacity is measured by BRR type specific heat capacity tester，and thethermalconductivityisobtained bycalculation.Theregressionanalysis of thermal conductivityand conventional geotechnical parameters（natural densityand porosity）wascarriedout.Theresultsshowedthat there was a strong correlation between thermal conductivityand natural densityand porosity，and thecorelationcoefficients were 0.8433andO.8342，respectively.The specific performance is thatthe thermal conductivity increases with the increase of natural density and decreases with the increase of porosity.

Key words： thermophysical parameters;thermal conductivity ;cohesive soil samples;test

随着城市化进程的加速，地铁建设已成为各大城市基础设施建设的核心内容之一。（剩余4084字）