Journal of Shandong University(Engineering Science) ›› 2025, Vol. 55 ›› Issue (5): 140-153.doi: 10.6040/j.issn.1672-3961.0.2024.186

• Civil Engineering • Previous Articles     Next Articles

Structural-mechanical properties of geocell-reinforced soils in acidic and alkaline environments

SUN Chuandi1,2,3, SONG Fei1,2,3*   

  1. SUN Chuandi1, 2, 3, SONG Fei1, 2, 3*(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China;
    2. Key Laboratory of Intelligent Construction and Maintenance of Civil Aviation Airport(Chang'an University), Xi'an 710064, Shaanxi, China;
    3. Xi'an Key Laboratory of Geotechnical Engineering for Green and Intelligent Transport(Chang'an University), Xi'an 710064, Shaanxi, China
  • Published:2025-10-17

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Abstract: The damage pattern of the specimen and the basic physical parameters of the soil fill were determined and analyzed through the conventional triaxial test on the compartment reinforced soil after soaking in acid and alkali solutions. Combined with the stress-strain curve obtained from the triaxial test, the stress-strain response model of the compartment reinforced body was verified, and then the changes in stress-strain response and apparent cohesion of the compartment reinforced soil with equivalent diameters of 0.34 m and 0.45 m under acid and alkali environments were investigated and analyzed by using the solidification and drainage triaxial test. The research results showed that triaxial test obtained compartment reinforced soil Duncan-Zhang model parameters applied to the bias stress-axial strain, body strain-axial strain relationship curve with the test curve almost match, that was, the derivation of the formula calculations in line with the test data; stress-strain response analysis, PET than PP compartment reinforced soil acid and alkaline environment, and the PET material two sizes of the compartment reinforced soil structure of the acidic environment more sensitive to alkaline, equivalent diameter of 0.45 m than 0.34 m to acid and alkali response, easy to produce shear damage; two diameters of PET compartments reinforced soil in the acid environment, the apparent cohesion decreased by 9.2% and 7.8%, respectively, and the alkali environment was less affected. While the PP material diameter of 0.34 m was not affected by acid and alkali, only the diameter of 0.45 m was reduced by 13.3% in the alkali environment, and was not affected by the acid environment.

Key words: compartment reinforced soils, acid and alkaline environments, theoretical modelling of compartment reinforced soils, mechanical properties

CLC Number: 

  • U417.115
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