石灰改良黃土物理力學與抗凍性能研究分析
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中圖分類號：U416.1 文獻標志碼：A 文章編號：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
道路施工過程中土體的物理力學和抗凍性能關系到基坑的穩(wěn)定性，特別是以軟土為主的沿海地區(qū)。（剩余5183字）