Nonlinear shear characteristics of frozen loess-concrete interface.

ABSTRACT: Under the different temperature environment, the precast pile-soil interface characteristics has an important impact on the safety and long-term stability for pile foundation. A large precast pile-soil shear experimental device is used to carry out the direct shear test of concrete-loess interface with different moisture contents under different freezing temperatures. The variation laws of shear strength parameters are revealed with influencing factors, and the shear mechanism of interface is discussed. The stress-strain constitutive equation of interface is proposed, and the shear strength criterion is established with considering the effects of temperature and moisture content on cohesion and internal friction angle. The results show the curve of shear stress and shear displacement can b

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC10426950 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature