Experimental study on the shear characteristics of frozen soil-concrete
interface under the constant normal stiffness
- Shibin Yuan,
- Jiaming Cong,
- Xuguang Fang
, - Yue Wu,
- Huaichen Yu
Abstract
The interaction between the structure and soil is the key factor for
infrastructure stabilization in permafrost engineering. In this study,
the shear mechanical behavior of the interface between concrete and
permafrost under different normal stiffness, temperature and water
content is investigated by using the interface direct shear test under
temperature-controlled conditions. The results show that with the
increase of temperature and water content, the initial shear stiffness
of the interface shear stress-shear displacement curve gradually
increases, and the interface shear strength gradually increases.
Different normal stiffnesses have a small effect on the morphology of
the interfacial shear stress-shear displacement curve, but have a
significant effect on the peak shear strength. The peak shear strength
increases significantly with the increase of normal stiffness, and this
trend is more obvious with the decrease of temperature. The
corresponding interfacial cohesion and friction angle also increase with
the increase of normal stiffness.Submitted to Engineering Reports 08 May 2024Review(s) Completed, Editorial Evaluation Pending
19 May 2024Reviewer(s) Assigned
18 Jun 2024Editorial Decision: Revise Major
01 Jul 20241st Revision Received
06 Jul 2024Submission Checks Completed
06 Jul 2024Assigned to Editor