Uniaxial compressive strength tests were conducted on the saturated frozen Lanzhou silt (loess) at various constant strain rates and at various constant temperatures. It is concluded from the test results that: the co...Uniaxial compressive strength tests were conducted on the saturated frozen Lanzhou silt (loess) at various constant strain rates and at various constant temperatures. It is concluded from the test results that: the compressive strength (\%σ \% f) is very sensitive to temperature (\%θ\%) and increases with the temperature decreasing as a power law. Compressive strength is sensitive to strain rate (\%\%) and increases with strain rates increasing within a certain range of strain rates as a power law. Compressive strength decreases when time to failure (\%t\% f) increases, also following a power law. Finally, Compressive strength of frozen silt with higher dry density (\%γ\% d) is higher than that of frozen silt with lower dry density. The difference between them is mainly influenced by strain rate.展开更多
文摘Uniaxial compressive strength tests were conducted on the saturated frozen Lanzhou silt (loess) at various constant strain rates and at various constant temperatures. It is concluded from the test results that: the compressive strength (\%σ \% f) is very sensitive to temperature (\%θ\%) and increases with the temperature decreasing as a power law. Compressive strength is sensitive to strain rate (\%\%) and increases with strain rates increasing within a certain range of strain rates as a power law. Compressive strength decreases when time to failure (\%t\% f) increases, also following a power law. Finally, Compressive strength of frozen silt with higher dry density (\%γ\% d) is higher than that of frozen silt with lower dry density. The difference between them is mainly influenced by strain rate.
