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Abstract
In order to truly reflect the shear strength index of soil in the project, the engineering soil sample was loaded and unloaded on a compression instrument, and then the shear strength τ of the excavated sample was measured by direct shear test, the shear strength of the soil sample without loading and unloading was compared with that of the soil sample without loading and unloading, and the influence of loading and unloading on the shear strength was analyzed. The results show that the shear strength of cohesive soil decreases within 2 % after loading and unloading, but the shear strength decreases with the increase of compressive stress.
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Details
1 Ezhou polytechnic, Ezhou, Hubei, China