Frozen sand-concrete interface direct shear behavior under constant normal load and constant normal height boundary

作     者：Jian CHANG Jian-kun LIU Ya-li LI Jian CHANG;Jian-kun LIU;Ya-li LI

作者机构：School of Civil EngineeringBeijing Jiaotong UniversityBeijing 100044China School of Civil EngineeringSun Yat-sen UniversityZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2022年第23卷第11期

页      面：917-932页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：the National Natural Science Foundation of China(No.41731281) the Key Foundation of Guangdong Province(No.2020B1515120083),China 

主　　题：Frozen sand–concrete interface Peak shear strength Critical shear strength Ice-cementation Boundary condition 

摘      要：The shear strength properties of the frozen sand–structure interface are critical for evaluating the serviceability of pile foundations in frozen *** shear characteristics of the frozen sand–concrete interface were studied with two boundary conditions(constant normal load(CNL)and constant normal height(CNH)),at three normal stresses(100,200,and 300 k Pa),and at three temperatures(-2,-5,and-8℃).A detailed comparative analysis was performed to explore the principal factors affecting the shear/normal-shear *** results showed that the shear behavior of the frozen sand–concrete interface under CNL was similar to that under *** shear stress–shear displacement exhibited strain *** temperature and normal stress were the major influences on normal *** lower the temperature and the higher the normal stress,the greater was the elastic shear *** peak shear stress and critical shear stress exhibited a dependence on normal *** exponential growth in the peak shear stress was observed as the temperature *** shear stress was dependent on *** value and percentage of peak ice-cementation in peak shear stress was affected by temperature and normal stress.