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Experimental study on physical and mechanical characteristics of rock-concrete combined body under complex stress conditions

文献类型：期刊论文

作者Zhao, Yu2,3; Shen, Mingxuan2,3; Bi, Jing2,3; Wang, Chaolin2,3; Yang, Yongtao1; Du, Bin3; Ning, Lin2,3
刊名CONSTRUCTION AND BUILDING MATERIALS
出版日期2022-03-21
卷号324页码:14
关键词Rock-concrete combined body Complex stress condition Physical and mechanical characteristics Strain Failure behavior
ISSN号0950-0618
DOI10.1016/j.conbuildmat.2022.126647
英文摘要Tidal waves and vehicle loadings forming a complex stress condition in coastal regions have a significant effect on the stability of engineering structures. It is therefore necessary to understand the physical and mechanical behaviors for rock-concrete combined structures under complex stress conditions for realizing the safe design of structures. Therefore, the complex stress condition tests of rock-concrete samples of varying roughness are performed in this study. The stress-strain curves of the rock-concrete samples show that hysteresis occurred under complex stress conditions. As the confining pressure increases, the hysteresis loop area increases. Furthermore, the elastic modulus increases accordingly as the roughness increases. The lateral deformation ratio (kappa) of the loaded rock-concrete sample increases as the number of cycles increases, but decreases as the height of roughness increases. The Mohr-Coulomb (M-C) criterion and the Hoek-Brown (H-B) criterion are used to fit the testing data and for discussion. The H-B strength criterion is suitable for describing the strength characteristics of the rock-concrete combined body under complex stress conditions. Ultimately, with the increasing axial loading and decreasing confining loading, the relative slipping on the adjacent triangle rock base and concrete resulted in the occurrence of the tensile crack.
资助项目National Natural Science Foundation of China[52064006] ; National Natural Science Foundation of China[52004072] ; National Natural Science Foundation of China[51779021] ; Science and Technol-ogy Support Project of Guizhou[[2020] 4Y044] ; Science and Technol-ogy Support Project of Guizhou[[2021] N404] ; Science and Technol-ogy Support Project of Guizhou[[2021] N511] ; Talents of Guizhou University[201901] ; Special Research Funds of Guizhou University[201903] ; Special Research Funds of Guizhou University[202011] ; Special Research Funds of Guizhou University[202012]
WOS研究方向Construction & Building Technology ; Engineering ; Materials Science
语种英语
WOS记录号WOS:000759158800006
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/34629]  
专题中科院武汉岩土力学所
通讯作者Bi, Jing
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
2.Guizhou Prov Key Lab Rock & Soil Mech & Engn Safe, Guiyang 550025, Guizhou, Peoples R China
3.Guizhou Univ, Coll Civil Engn, Guiyang 550025, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Yu,Shen, Mingxuan,Bi, Jing,et al. Experimental study on physical and mechanical characteristics of rock-concrete combined body under complex stress conditions[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,324:14.
APA Zhao, Yu.,Shen, Mingxuan.,Bi, Jing.,Wang, Chaolin.,Yang, Yongtao.,...&Ning, Lin.(2022).Experimental study on physical and mechanical characteristics of rock-concrete combined body under complex stress conditions.CONSTRUCTION AND BUILDING MATERIALS,324,14.
MLA Zhao, Yu,et al."Experimental study on physical and mechanical characteristics of rock-concrete combined body under complex stress conditions".CONSTRUCTION AND BUILDING MATERIALS 324(2022):14.

入库方式： OAI收割

来源：武汉岩土力学研究所

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