Mechanical Anisotropy and Failure Characteristics of Columnar Jointed Rock Masses (CJRM) in Baihetan Hydropower Station: Structural Considerations Based on Digital Image Processing Technology
文献类型：期刊论文
| 作者 | Xia, Yingjie; Zhang, Chuanqing; Zhou, Hui; Zhang, Chunsheng; Hong, Wangbing |
| 刊名 | ENERGIES
 |
| 出版日期 | 2019 |
| 卷号 | 12期号:19页码:- |
| 关键词 | columnar jointed rock mass structural characteristic anisotropy numerical simulation mechanical responses |
| DOI | 10.3390/en12193602 |
| 英文摘要 | The columnar joints in Baihetan hydropower station are primary tensile joints since they were formed during the process of lava condensation. Understanding the influence of columnar jointed rock mass (CJRM) on the mechanical response and failure modes is the basis for designing of associated engineering works. Hence, the structural characteristics of Baihetan CJRM were analyzed by carrying out a geological survey at first. Three groups of numerical models capable of reflecting the structural characteristics of CJRM were then established to analyze the mechanical and failure characteristics. The results in this study showed that: (1) Irregularity of columnar basalt restricted crack propagation on columnar joints and also led to stress concentration in the distorted parts, and thus, damage of basalt columns; (2) when the included angle between direction of concentrated defect structures in CJRM and uniaxial stress was large, the defect structures can prevent crack propagation on columnar joints, and the failure of defect structure can cause the overall failure of the rock mass; and (3) under the condition of same columnar structure and included angle, the peak strength of models with microcracks and structural plane was low and the irregular shape of columnar joints decreased the anisotropy of mechanical parameters. |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000498072600013 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/14864]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China; 3.Power China Huadong Engn Corp Ltd, Hangzhou 310014, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Yingjie,Zhang, Chuanqing,Zhou, Hui,et al. Mechanical Anisotropy and Failure Characteristics of Columnar Jointed Rock Masses (CJRM) in Baihetan Hydropower Station: Structural Considerations Based on Digital Image Processing Technology[J]. ENERGIES,2019,12(19):-. |
| APA | Xia, Yingjie,Zhang, Chuanqing,Zhou, Hui,Zhang, Chunsheng,&Hong, Wangbing.(2019).Mechanical Anisotropy and Failure Characteristics of Columnar Jointed Rock Masses (CJRM) in Baihetan Hydropower Station: Structural Considerations Based on Digital Image Processing Technology.ENERGIES,12(19),-. |
| MLA | Xia, Yingjie,et al."Mechanical Anisotropy and Failure Characteristics of Columnar Jointed Rock Masses (CJRM) in Baihetan Hydropower Station: Structural Considerations Based on Digital Image Processing Technology".ENERGIES 12.19(2019):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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