๐ŸŒก️ Experimental Investigation of Thermal Influence on Shear Strength and Swelling Pressure of Soil Mixtures ๐ŸŒ

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Soil, being a natural foundation material, plays a crucial role in civil engineering applications. The mechanical and physical properties of soil—especially shear strength and swelling pressure—are highly sensitive to environmental factors such as temperature variations. This study explores how thermal changes influence the behavior of soil mixtures, offering insights for designing stable and sustainable geotechnical structures under thermal loading conditions.

1️⃣ Thermal Effects on Soil Behavior ๐Ÿ”ฅ

Temperature fluctuations can alter the pore-water pressure, moisture content, and particle bonding within soil. When soil is exposed to heating or cooling:

  • Thermal expansion or contraction occurs in soil particles.

  • Water viscosity changes, affecting permeability and suction.

  • These variations directly modify the effective stress, leading to changes in strength and deformation behavior.

2️⃣ Shear Strength under Thermal Influence ⚖️

Shear strength defines a soil’s resistance against sliding failure. With rising temperature:

  • Cohesion (c) may reduce due to weakened inter-particle bonds.

  • Internal friction angle (ฯ†) might change depending on mineral composition.

  • Thermal softening of clay minerals can reduce stability in slopes and foundations.
    Experimental results often reveal that moderate heating enhances shear strength by drying and densification, but excessive heating causes micro-cracks and strength loss.

3️⃣ Swelling Pressure Variation ๐ŸŒŠ

Swelling pressure represents the soil’s ability to expand upon water absorption. Thermal influence can significantly affect this property:

  • High temperatures reduce water adsorption and lower swelling pressure.

  • Cyclic heating and cooling lead to irreversible volume changes, causing structural instability.

  • In expansive clays, heating may release bound water from mineral layers, altering the plasticity and volume behavior.

4️⃣ Experimental Approach ๐Ÿงช

The investigation typically includes:

  • Sample Preparation: Mixing soils with various proportions (clay, sand, silt).

  • Thermal Conditioning: Heating samples to controlled temperatures (25°C–100°C).

  • Testing: Conducting Direct Shear Tests and Oedometer Tests under thermal exposure.

  • Data Analysis: Evaluating correlations between temperature rise, shear parameters, and swelling pressure variations.

5️⃣ Conclusion & Applications ๐Ÿ—️

The study highlights that thermal effects cannot be ignored in underground structures, nuclear waste repositories, geothermal energy systems, and pavements. Understanding thermal-soil interaction enhances design safety, durability, and sustainability of future infrastructure.

World Top Scientists Awards Visit Our Website ๐ŸŒ: worldtopscientists.com Nominate Now๐Ÿ“: https://worldtopscientists.com/award-nomination/?ecategory=Awards&rcategory=Awardee Contact us ✉️: support@worldtopscientists.com Here Connected With: ================== Whatsapp : whatsapp.com/channel/0029Vb5At1zDuMRbivne3i17 Youtube: www.youtube.com/@topscientistsawards Twitter: twitter.com/Topscienti50880 Linked in: https://www.linkedin.com/in/world-top-scientists-awards-6a0768282/ Pinterest: in.pinterest.com/topscientists/ Blog: scientistsawards25.blogspot.com/ Instagram: www.instagram.com/world_top_scientists/ #Sciencefather #ResearchAwards #WorldTopScientistsAwards#SoilMechanics #ThermalEffect #GeotechnicalEngineering #Sustainability #ClimateResilience #SmartInfrastructure #EarthScience #EngineeringResearch #BusinessEthics #professors #doctor #researchers #phd #Dendrobium #Phytochemistry #TraditionalMedicine #PharmacologicalMechanism #NaturalProducts #HerbalMedicine #MedicinalPlants #DendrobiumResearch #PlantBasedMedicine #BioactiveCompounds #Pharmacognosy #Ethnopharmacology #TherapeuticAgents #BotanicalDrugs Visit Our Website ๐ŸŒ: worldtopscientists.com Nominate Now๐Ÿ“: https://worldtopscientists.com/award-nomination/?ecategory=Awards&rcategory=Awardee Contact us ✉️: support@worldtopscientists.com Here Connected With: ================== Whatsapp : whatsapp.com/channel/0029Vb5At1zDuMRbivne3i17 Youtube: www.youtube.com/@topscientistsawards Twitter: twitter.com/Topscienti50880 Linked in: https://www.linkedin.com/in/world-top-scientists-awards-6a0768282/ Pinterest: in.pinterest.com/topscientists/ Blog: scientistsawards25.blogspot.com/ Instagram: www.instagram.com/world_top_scientists/  

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