Experimental study of shear characters in the interface between soil and structure in high stress

Abstract：The shear character in the interface between soil and structure in high stress is one of key research in shaft lining fracture theory.It has briefly introduced the experimental apparatus and process.By analyzing experimental data, the shear character of interface [AKτ-D]-w s correlation can be described by ideal elastic?plastic model when normal stress ≤4?MPa or be described by three line segment model when normal stress >4?MPa, and the apical intensity and residual intensity is about the same, and the apical intensity is related to normal stress and shear displacment.The residual intensity got higher along with the base rigidity accretion when normal stress is biggish.Finally, influenced factors are put forward on experimental model applying to engineering project.

Keyword：structure interface;shear deformation;shaft lining fracture;constitutive law;