Investigation of damage characteristics of coral reef limestone under uniaxial compression based on pore structure
文献类型：期刊论文
| 作者 | Wu, Kai; Meng, Qingshan; Wang, Chi; Qin, Qinglong; Dong, Zhiwei |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 313 |
| 关键词 | Coral reef limestone Pore structure Fractal dimension Rock quality classification |
| ISSN号 | 0013-7952 |
| 英文摘要 | The variation of the biological source and diagenetic environment results in significant differences in pore structure and mechanical properties of coral reef limestone (CRL) with various structures. This study analyzed uniaxial compression behavior and pore structural characteristics of four types of CRL using the uniaxial compression test and computerized tomography (CT) scanning test. The influence mechanism of CRL's physical properties on its uniaxial compression characteristics was revealed from a microscopic perspective. The results suggested that the uniaxial compressive curves of different structural types of CRLs exhibited single-peak or multi-peak characteristics, in which Coral Framework Limestone (CFL) and Coral Boulder Limestone (CBL) mainly experienced brittle failure while Coral Gravel Limestone (CGL) and Coral Calcarenite Limestone (CCL) underwent ductile failure with the increase of porosity. Through a CT scanning test, the influence of pore structure on the damage mechanism of CRL was explored. According to the digital image analysis technique, the influence of CRL diagenesis on the pore fractal dimension was investigated from the perspective of geological genesis, and an empirical formula for estimating uniaxial compressive strength (UCS) of CRL was established based on the fractal dimension. Furthermore, a quality evaluation method for CRL suitable for practical engi-neering was proposed. The research results can provide a reference for the estimation of UCS and quality clas-sification evaluation of CRL in the construction of island reefs. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000921491600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34723]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Wu, Kai,Meng, Qingshan,Wang, Chi,et al. Investigation of damage characteristics of coral reef limestone under uniaxial compression based on pore structure[J]. ENGINEERING GEOLOGY,2023,313. |
| APA | Wu, Kai,Meng, Qingshan,Wang, Chi,Qin, Qinglong,&Dong, Zhiwei.(2023).Investigation of damage characteristics of coral reef limestone under uniaxial compression based on pore structure.ENGINEERING GEOLOGY,313. |
| MLA | Wu, Kai,et al."Investigation of damage characteristics of coral reef limestone under uniaxial compression based on pore structure".ENGINEERING GEOLOGY 313(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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