Investigation of frozen sand–concrete interface behaviour based on shear properties

IF 6.2 1区工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computers and Geotechnics Pub Date : 2025-08-16 DOI:10.1016/j.compgeo.2025.107569

Jian Chang , Weiwei Niu , Jiankun Liu , Fuyou Yan , Zhifeng Ren , Wenxue Wang , Yankun Liang

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引用次数: 0

Abstract

The mechanical properties of the frozen sand–structure interface plays a crucial role in determining the overall mechanical behavior of building structural systems. The analysis of the normal mechanical characteristics at the frozen interface is limited, and existing constitutive models fail to account for the influence of these normal mechanical properties. This paper first investigates the variations in shear stress and normal displacement of the frozen sand–concrete interface (FSCI), considering the effects of temperature and initial normal stress under constant normal height boundary condition. The critical state theory in geomechanics is then applied to describe the mechanical behavior of the FSCI. Additionally, within the framework of the bounding surface plasticity constitutive model of soil–structure interface developed by Saberi (2017, 2019) and Lashkari (2012, 2013), this study introduces the pore ice isothermal compression coefficient to simulate the variation in normal displacement during the shear process. The modified constitutive model is capable of capturing the shear dilatancy, strain softening, and stress path dependency of the frozen interface.

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基于剪切特性的冻砂-混凝土界面特性研究

冻砂-结构界面的力学特性对建筑结构体系的整体力学性能起着至关重要的作用。对冻结界面法向力学特性的分析是有限的，现有的本构模型未能考虑这些法向力学特性的影响。本文首先研究了在恒定法向高度边界条件下，考虑温度和初始法向应力的影响，冻结砂-混凝土界面（FSCI）剪应力和法向位移的变化规律。然后应用地质力学中的临界状态理论来描述FSCI的力学行为。此外，在Saberi（2017、2019）和Lashkari（2012、2013）建立的土-结构界面边界面塑性本构模型框架内，引入孔隙冰等温压缩系数，模拟剪切过程中法向位移的变化。修正的本构模型能够捕捉冻结界面的剪切剪胀、应变软化和应力路径依赖性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computers and Geotechnics 地学-地球科学综合

CiteScore

9.10

自引率

15.10%

发文量

438

审稿时长

45 days

期刊介绍： The use of computers is firmly established in geotechnical engineering and continues to grow rapidly in both engineering practice and academe. The development of advanced numerical techniques and constitutive modeling, in conjunction with rapid developments in computer hardware, enables problems to be tackled that were unthinkable even a few years ago. Computers and Geotechnics provides an up-to-date reference for engineers and researchers engaged in computer aided analysis and research in geotechnical engineering. The journal is intended for an expeditious dissemination of advanced computer applications across a broad range of geotechnical topics. Contributions on advances in numerical algorithms, computer implementation of new constitutive models and probabilistic methods are especially encouraged.