Deformation and failure behaviours of rock-concrete interfaces with natural morphology under shear testing
文献类型：期刊论文
| 作者 | Jiang, Quan1; Yang, Yao1,2; Yan, Fei1; Zhou, Junbo3; Li, Shaojun1; Yang, Bing1; Zheng, Hong1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2021-07-26 |
| 卷号 | 293期号:-页码:14 |
| 关键词 | Rock-concrete Interface Concrete wall strength Normal stress Shear strength formula |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2021.123468 |
| 英文摘要 | The shearing performance and strength of the interface between rock foundations and structural concrete is a key issue for safety estimation in geotechnical engineering containing rock-concrete interface. In this paper, we focused on the effects of concrete wall strength and normal stress on the unbonding performances of sandstone-concrete interface. First, many sandstone-concrete specimens containing a natural dam bedrock interface had been produced by using "3D optical scanning technology + 3D digital engraving technology + pouring concrete" method. Subsequently, after the sandstone-concrete specimens were prepared, a series of shear tests for these sandstone-concrete specimens were carried out under different normal loading conditions. Finally, the shear characteristics of sandstone-concrete interface were discussed, and an improved rock-concrete shear strength formula was proposed based on the exposed experimental tests and theoretical derivation. Three primary outcomes are as follows: (i) shear damage only occurred at some special positions of the concrete wall, and its degree of shear damage gradually increased with increasing normal stress; (ii) the damage degree of the concrete surface performed obvious localization and nonuniformity was affected by the concrete strength; (iii) the global shear strength and residual strength of the rock-concrete interface were affected by the concrete strength and the normal load. Moreover, an improved rock-concrete shear strength formula was proposed based on the experimental cognition. This strength formula considers both the interface roughness and the mechanical strength of rock/concrete materials, and is more reasonable for estimating the shear strength of rock concrete interfaces in geotechnical engineering. (c) 2021 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[U1965205] ; National Natural Science Foundation of China[51779251] ; Hubei Province Outstanding Youth Fund[2017CFA060] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000660291500004 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27509]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hubei Prov Commun Planning & Design Inst Co LTD, Wuhan 430051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Quan,Yang, Yao,Yan, Fei,et al. Deformation and failure behaviours of rock-concrete interfaces with natural morphology under shear testing[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,293(-):14. |
| APA | Jiang, Quan.,Yang, Yao.,Yan, Fei.,Zhou, Junbo.,Li, Shaojun.,...&Zheng, Hong.(2021).Deformation and failure behaviours of rock-concrete interfaces with natural morphology under shear testing.CONSTRUCTION AND BUILDING MATERIALS,293(-),14. |
| MLA | Jiang, Quan,et al."Deformation and failure behaviours of rock-concrete interfaces with natural morphology under shear testing".CONSTRUCTION AND BUILDING MATERIALS 293.-(2021):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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