Effect of Mica Content on Mechanical Properties of Yili River Valley Loess under the Impact of Freezing and Thawing

Natural disasters, including collapse, landslides, and debris flows, commonly occur in the Yili River Valley as a result of its distinctive terrain climate. A large proportion these are loess landslides. Hence, studying mechanism their occurrence is crucial. The has high mica content. By using freeze-thaw (FT) cycling tests, unconsolidated undrained triaxial shear FT experiments, study clarifies impact content on mechanical properties under conditions. findings demonstrated that loess’s strength was negatively impacted by both cycles (FTCs). Under same cycle conditions, decreased with an increase content, particularly during first ten cycles. Cohesion represented parameters. cohesion decreases increases. After cycles, values tended to become stable, while internal friction angle showed opposite trend. For valley number FTCs, decreased, increased then decreased. study’s might offer theoretical foundation for preventing reducing landslides caused FTCs