Temperature-Controlled Triaxial Compression Test of Tire Strip-Reinforced Silty Clay

Through triaxial compression test, the effect of different confining pressures, temperatures and volume reinforcement ratios on the strength of tire strip-reinforced silty clay was investigated. The stress–strain characteristics of the tire-reinforced silty clay were normalized, and the stress–strain relationship normalization equation was established. The test results show that the shear strength of tire strip-reinforced silty clay increases with the increase in confining pressure, and the reinforcement effect increases with the increase in confining pressure. At different temperatures, the shear strength is negatively correlated with temperature. At a confining pressure of 400 kPa, the shear strength of the sample with a volume reinforcement ratio of 3% was 3.16 times that of the unreinforced sample. Under the ratio of 3% volume reinforcement, the effect coefficient under various confining pressures was 2–3 times of that under unreinforced conditions. The stress–strain relationship of reinforced silty clay is normalized by using (σ₁ − σ₃)_ult as the normalization factor, which has good normalization characteristics.