Strengthening the roadbed of highways using soil stabilizers

Kayumov, Abdubaki; Salimova, Barno; Khakimova, Raykhon; Kayumov, Azizjon

doi:10.1051/e3sconf/202126402012

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…He Y et al [16] The frost resistance of railway subgrade filler in cold region was studied. Railway Kayumov A et al [17] Soil stabilizers are used to reinforce highway subgrades. Highway I.…”

Section: Railwaymentioning

confidence: 99%

Experimental Study on Mechanical Properties of Highway Subgrade in Cold Regions under Different Conditions

Wang,

Li,

Jia

et al. 2024

Applied Sciences

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In order to study the changes in the mechanical properties of road subgrade in cold areas after the freezing and thawing of highways in cold areas, indoor mechanical tests were carried out to investigate the effects of the number of freeze–thaw cycles, freezing temperature, water content, and circumferential pressure on the mechanical properties of road subgrade soil in cold areas after thawing. The mechanical properties of road subgrade soil in cold areas after thawing were measured under different conditions. The test results show that, within the study range: (1) After 7 freeze–thaw cycles, the destructive stress of the subgrade soil decreased from 321.7 kPa to 289.9 kPa, a decrease of 9.9%, and the elastic modulus decayed by 19.9%. (2) When the freezing temperature was reduced from −5 °C to −15 °C, the destructive stress of the subgrade soil decreased from 303.9 kPa to 290.1 kPa, a decrease of 13.8 kPa, approximately 4.5%, and the decrease in modulus of elasticity was about 1.6%. (3) The water content increased from 6% to 12%, and the destructive stress decreased from 405.43 kPa to 288.4 kPa, a decrease of 29.1%, and the modulus of elasticity decreased approximately linearly, with an attenuation of 50.4%. (4) The peripheral pressure increased from 50 kPa to 150 kPa, and the destructive stress increased from 194.7 kPa to 367.7 kPa, a growth of 88.8%, and its modulus of elasticity increased with the increase in peripheral pressure, an increase of 154.1%. The results of this research can provide a reference for highway and engineering construction in the western silt–soil distribution area.

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Section: Railwaymentioning

confidence: 99%

Experimental Study on Mechanical Properties of Highway Subgrade in Cold Regions under Different Conditions

Wang,

Li,

Jia

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

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Experimental study on mechanical properties of subgrade soil in cold region under different conditions

Wang,

Li,

Jia

et al. 2023

Preprint

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In order to study the change of mechanical properties of subgrade under the condition of thawing after the highway in cold region is subjected to freeze-thaw action all the year round. In this paper, the effects of freeze-thaw cycles, freezing temperature, water content and confining pressure on the mechanical properties of subgrade soil in cold regions after thawing were studied by carrying out indoor mechanical tests, and the mechanical properties of subgrade soil in cold regions after thawing under different conditions were measured. The test results show that : 1 ) after 7 freeze-thaw cycles, the failure stress of subgrade soil decreases from 321.7 kPa to 289.9 kPa, with a decrease of 9.9%, and the elastic modulus decreases by 19.9%. 2 ) When the freezing temperature is reduced from − 5°C to − 15°C, the failure stress of subgrade soil is reduced from 303.9 kPa to 290.1 kPa, which is reduced by 13.8 kPa. The reduction range is about 4.5%, and the elastic modulus is about 1.6%;3 ) When the water content increased from 6–12%, the failure stress decreased from 405.43 kPa to 288.4 kPa, with a decrease of 29.1%, and the elastic modulus decreased approximately linearly, with a decrease of 50.4%. 4 ) When the confining pressure increases from 50 kPa to 150 kPa, the failure stress increases from 194.7 kPa to 367.7 kPa, and the failure stress increases by 88.8%. The elastic modulus increases by 154.1% with the increase of confining pressure. The research results can provide reference for highway and engineering construction in the western silty sand distribution area.

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Strengthening the roadbed of highways using soil stabilizers

Cited by 2 publications

References 2 publications

Experimental Study on Mechanical Properties of Highway Subgrade in Cold Regions under Different Conditions

Experimental Study on Mechanical Properties of Highway Subgrade in Cold Regions under Different Conditions

Experimental study on mechanical properties of subgrade soil in cold region under different conditions

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