Experimental study on dynamic mechanical properties of frozen unsaturated silty clay (opens in new tab)

To study the influence of the change in soil strength of frozen silty clay on the support design during the foundation pit construction process, a water-rich silt-clay layer railway tunnel foundation pit in Jinan, Shandong Province was taken as the background. Dynamic impact tests on frozen silty clay were conducted using a separated Hopkinson pressure rod test device to analyze the effects of different impact pressures, different moisture contents and different temperatures on frozen silty c...