Investigation of the Mechanical Behavior Evolution and Cracking Characteristics of Coral Reef Limestone Subjected to High Temperature Utilizing the AE Technique
文献类型：期刊论文
| 作者 | Wang, Chi1,2; Meng, Qingshan1,2; Wu, Kai1,2; Shen, Tianli1,2 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2025-01-26 |
| 页码 | 24 |
| 关键词 | Coral reef limestone High-temperature treatment Acoustic emission Physical and mechanical characteristics Thermal-induced microcracks |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-024-04343-1 |
| 英文摘要 | Thermal-induced metamorphism of coral reef limestone (CRL) leads to the deterioration of its engineering properties, causing a threat to the safety of reef caverns. The physical, mechanical, and fracture characteristics of CRL at high temperatures were studied in this paper utilizing the acoustic emission (AE) technology. The results reveal that 400 degrees C is the threshold temperature for thermal damage to CRL. The porosity significantly increases after temperatures exceed 400 degrees C, indicating the development of thermal-induced cracks within the rock. Thermal-induced cracks and mineral decomposition severely degrade the strength and elastic modulus of CRL. The frequency distribution of AE waveforms represents the transition of failure mode from tensile-shear composite failure to shear failure as the temperature evolves. The increase of the b value with rising temperature indicates a transition in the crack pattern from large-sized crack dominance to small-crack network dominance. The results of this study fill a research gap concerning thermal damage in CRL. The key findings provide theoretical guidance for the design and construction of underground chambers in islands and reefs. |
| 资助项目 | National Natural Science Foundation of China[41877267] ; National Natural Science Foundation of China[41877260] ; National Natural Science Foundation of China[XDA13010201] ; Priority Research Program of the Chinese Academy of Science[2018FY10010003] ; Special Foundation for National Science and Technology Basic Research Program of China |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001405810400001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37356]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Meng, Qingshan |
| 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 |
| 推荐引用方式 GB/T 7714 | Wang, Chi,Meng, Qingshan,Wu, Kai,et al. Investigation of the Mechanical Behavior Evolution and Cracking Characteristics of Coral Reef Limestone Subjected to High Temperature Utilizing the AE Technique[J]. ROCK MECHANICS AND ROCK ENGINEERING,2025:24. |
| APA | Wang, Chi,Meng, Qingshan,Wu, Kai,&Shen, Tianli.(2025).Investigation of the Mechanical Behavior Evolution and Cracking Characteristics of Coral Reef Limestone Subjected to High Temperature Utilizing the AE Technique.ROCK MECHANICS AND ROCK ENGINEERING,24. |
| MLA | Wang, Chi,et al."Investigation of the Mechanical Behavior Evolution and Cracking Characteristics of Coral Reef Limestone Subjected to High Temperature Utilizing the AE Technique".ROCK MECHANICS AND ROCK ENGINEERING (2025):24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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