改性流态固化土抗压性能试验研究

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Experimental Study on Compressive Performance of Modified Fluidized Bed Solidified Soil

(1.,石家庄050200;2.河北建研科技有限公司,石家庄)

中图分类号:TU44 文献标志码:A 文章编号:1005-8249(2025)01-0089-06

DOI:10.19860/j.cnki.issn1005-8249.2025.01.017

ZHANG Huili', HUO Guang2

(1. Shijiazhuang Luquan District Construction Industry Service Center., Shijiazhuang O5O2OO,China; 2.Hebei Jianyan Technology Co.,Ltd.,Shijiazhuang O50227,China)

Abstract:Stabilized soil has goodcompresive,frostresistant,water-resistant,anddrywetcycleresistance properties,and is widelyused intheconstructionof infrastructuresuchaswaterconservancy,transportation,andports.Toimproveits compressive performance,commonsandysoil,loess,andclayin Hebei Province were selected asresearch objects.Through diferent mixratios ofcompresiveperformance tests,theefects ofcement,naphthalene sulfonic acid formaldehydecondensate, anhydroussodium sulfate,silica,flyash,andsodiumchlorideonthecompresivestrength of the materialswereanalyzed. Furthermore,afunctionalrelationshipbetweenthecompresivestrengthofmodifiedfluidizedbedsolidifiedloessandthe compositionratiowas established.Research hasshown that theadditionof naphthalene sulfonicacid formaldehydecondensate andanhydrous sodium sulfatecanimprove thecompressive strengthofcuredpowders;Whenincreasing thedosageofly ashand silica,thecompresive strengthof thesolidified powderfirst increasesandthenremainsunchanged,while increasingthedosage of sodiumchloridecanleadtoanincreaseandthenadecreaseinthecompressivestrengthof thesolidified powder.Theresearch results can provide reference for the application of solidified soil.

Key words:solidified soil;silt;compressiveperformance;naphthalene sulfonicacid formaldehyde condensate;anhydrous sodium sulfate

岩土力学

0 引言

固化土由于施工便利、成本低,在基坑回填及地基处理项目中得到了大范围应用[1-2]。(剩余9617字)

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