石灰改良黄土物理力学与抗冻性能研究分析

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中图分类号：U416.1 文献标志码：A 文章编号：1005-8249（2025）03-0145-05

DOI：10.19860/j.cnki.issn1005-8249.2025.03.026

Abstract：Inorder toanalyzetheinfluenceoflimeincorporationonphysicalmechanicsandfrostresistanceofloess，Preparation of sixsetsof stabilized loesspecimentswith various limecontents，and their limit water content，optimal watercontent， maximumdrydensity，compressivestrength，cohesion，intemal frictionangleand frostresistance were tested.Theresults showthat：Withtheincreaseof limedosage，theplasticityindexof improvedloess decreases firstandthen increases slowly， the optimal watercontent increases gradually，andthe maximum drydensitydecreasesgradually.The compresive strength， cohesionandinteralfrictionangleoftheimprovedloessgraduallyincreasedwiththeincreaseof limedosage.Theaditionof limecanefectively improvethe frost resistanceof theimproved loess.Considering the moisturecontent，drydensity， compressivestrength，cohesion，interalfrictionangleandfreezingresistanceoftheimprovedloess，theoptimallimedosage is 8% .Provide a theoretical basis for relevant engineering applications.

Key words： lime improved loess；boundary moisture content；compressive strength；shear strength；freeze-thaw cycle

0 引言

道路施工过程中土体的物理力学和抗冻性能关系到基坑的稳定性，特别是以软土为主的沿海地区。（剩余5183字）