Mechanical behavior and failure characteristics of limestone-concrete specimens with different prefabricated fracture angles under compressive-shear loading
文献类型：期刊论文
| 作者 | Huang, Kang2,3; Huang, Shuling3; Ding, Xiuli3; Zhang, Yuting3; Liu, Zihang1,2; Han, Gang3; Dai, Zhangjun |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2025-05-23 |
| 卷号 | 476页码:12 |
| 关键词 | Compression-shear loading Limestone-concrete interface Cracking behavior Failure characteristics Digital Image Correlation (DIC) |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2025.141284 |
| 英文摘要 | The instability of shotcrete support structures, such as those found in underground tunnels, is often caused by failure at the rock-concrete interface under compressive-shear loading. However, the failure modes and mechanisms at this interface, especially in the presence of cracks, are still not fully understood. To address this gap, this study examines the failure behavior of limestone-concrete specimens with varying prefabricated fracture angles under compression-shear loading. The research combines compression-shear testing with Digital Image Correlation (DIC), Acoustic Emission (AE), and Scanning Electron Microscopy (SEM) techniques, providing a comprehensive analysis at both macro and micro scales. The results indicate that as the fracture angle increases, the peak load and corresponding peak displacement of the specimens initially increase, then decrease. The failure mode transitions from being primarily governed by the interface to a composite mode influenced by both the interface and the crack tip. Furthermore, regardless of the fracture angle, the degree of damage to the concrete is consistently greater than that of the limestone. Finally, shear cracks contribute more significantly to the peak compression-shear load of the specimens than tensile cracks. This study not only offers new insights into the failure mechanisms of the rock-concrete interface under compression-shear loading but also provides valuable theoretical guidance for the optimization and reinforcement of tunnel shotcrete structures. |
| 资助项目 | National Natural Science Founda-tion of China[U2340229] ; National Natural Science Founda-tion of China[42172308] ; National Natural Science Founda-tion of China[52409124] ; Na-tional Key Research and Development Program of China[2024YFC3211200] ; Innovation Team of Chang jiang River Scientific Research Institute[CKSF2024329/YT] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001469913700001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35689]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Kang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Minist Water Resources, Changjiang River Sci Res Inst, Key Lab Geotech Mech & Engn, Wuhan 430010, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Kang,Huang, Shuling,Ding, Xiuli,et al. Mechanical behavior and failure characteristics of limestone-concrete specimens with different prefabricated fracture angles under compressive-shear loading[J]. CONSTRUCTION AND BUILDING MATERIALS,2025,476:12. |
| APA | Huang, Kang.,Huang, Shuling.,Ding, Xiuli.,Zhang, Yuting.,Liu, Zihang.,...&Dai, Zhangjun.(2025).Mechanical behavior and failure characteristics of limestone-concrete specimens with different prefabricated fracture angles under compressive-shear loading.CONSTRUCTION AND BUILDING MATERIALS,476,12. |
| MLA | Huang, Kang,et al."Mechanical behavior and failure characteristics of limestone-concrete specimens with different prefabricated fracture angles under compressive-shear loading".CONSTRUCTION AND BUILDING MATERIALS 476(2025):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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