橡胶颗粒改良红黏土路基性能研究

Study on the Performance of Red Clay Subgrade Improved by Waste Tire Particles

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关键词：橡胶颗粒；粒径；掺量；路基红黏土；渗透性

中图分类号：TU045 文献标志码：A 文章编号：1005-8249（2025）01-0129-04

DOI：10.19860/j.cnki.issn1005-8249.2025.01.024

TAO Yunfeng

anxi Jiaokong Taijiu Expressway Reconstruction and Expansion Project Co.，Ltd.，Taiyuan O306，Chin Abstract：To study the application performance of rubber particles in improving roadbedred clay，tests wereconductedon the compactioncharacteristics，shearstrength，compresioncoeficient，andpermeabilitycoeficientof improved roadbedredclay underdiferentrubberparticlesizeanddosageconditions.Theresultsshowed thatafteraddingfourdiferentparticlesizesof rubber particles，theoptimal moisturecontentshowedatrendoffirst increasingandthendecreasing withtheincreaseof rubber powdercontent；Astheamountofrubber powderincreases，theoverallshearstrength showsatrendoffirst increasing andthen decreasing；Astheparticlesizeofrubber powderincreases，theoverall shearstrength firstdecreasesandthenincreases；Each groupof rubberparticle modifiededclaybelongs tomediumcompresibilitysoil，andthecompressbilityofthesoil icreases withtheincreaseofmaterialcontent，andtheoverallpermeabilityalsosowsagraduallyincreasingtrend；Inaddition，asthe particlesizeofrbberparticlesgradually increass，thecompressioncoeffcientandpermeabilitycoeffientoftheimprovedred claygraduallydecrease.Theresearchresultsprovidereference fortheimprovementandresourcerecoveryofredclayforroad embankments in China.

Key words： rubber granules； particle size； dosage；roadbed red clay；permeability

0 引言

红黏土是我国常见的路基土，具有良好的工程性能和广泛的应用价值[1-2]。（剩余6221字）