Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Failure and Post-failure Strength Parameters of Fiber-Reinforced Cemented Sand Under Triaxial Loading
This study investigates the shear parameters of sand modified with varying percentages of Portland cement and polyvinyl alcohol (PVA) fibers. Seventy-two static strain-controlled consolidated-drained (CD) triaxial compression tests were conducted on saturated samples. The study evaluated the effects of various factors, including relative density (50% and 80%), cement content (0%, 2%, and 4%), fiber content (0%, 0.5%, and 1%), and confining pressures (50, 100, 300, and 500 kPa), on the peak and residual shear strength parameters of the samples. The findings revealed that increasing the cement content enhances the peak internal friction angle and peak cohesion, while cementation has minimal impact on residual cohesion and residual internal friction angle. Fiber reinforcement improved peak cohesion, peak internal friction angle, residual cohesion, and residual internal friction angle of the sand. The rate of improvement in peak internal friction angle due to fiber addition decreased with higher cement content and dry density, whereas the increase in peak cohesion was more pronounced at higher cement percentages. Furthermore, the influence of cementation on shear strength parameters was more significant in denser samples. These results provide valuable insights for improving the design methodologies of reinforced soil structures such as retaining walls and foundations.
Failure and Post-failure Strength Parameters of Fiber-Reinforced Cemented Sand Under Triaxial Loading
This study investigates the shear parameters of sand modified with varying percentages of Portland cement and polyvinyl alcohol (PVA) fibers. Seventy-two static strain-controlled consolidated-drained (CD) triaxial compression tests were conducted on saturated samples. The study evaluated the effects of various factors, including relative density (50% and 80%), cement content (0%, 2%, and 4%), fiber content (0%, 0.5%, and 1%), and confining pressures (50, 100, 300, and 500 kPa), on the peak and residual shear strength parameters of the samples. The findings revealed that increasing the cement content enhances the peak internal friction angle and peak cohesion, while cementation has minimal impact on residual cohesion and residual internal friction angle. Fiber reinforcement improved peak cohesion, peak internal friction angle, residual cohesion, and residual internal friction angle of the sand. The rate of improvement in peak internal friction angle due to fiber addition decreased with higher cement content and dry density, whereas the increase in peak cohesion was more pronounced at higher cement percentages. Furthermore, the influence of cementation on shear strength parameters was more significant in denser samples. These results provide valuable insights for improving the design methodologies of reinforced soil structures such as retaining walls and foundations.
Failure and Post-failure Strength Parameters of Fiber-Reinforced Cemented Sand Under Triaxial Loading
Transp. Infrastruct. Geotech.
Choobbasti, Asskar Janalizadeh (Autor:in) / Kutanaei, Saman Soleimani (Autor:in) / Vafaei, Ali (Autor:in) / Ghadakpour, Moein (Autor:in) / Afrakoti, Mobina Taslimi Paein (Autor:in) / Roushan, Kaveh (Autor:in)
01.03.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2025
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