Spatial Fractal Structure of Microseismic Events for Different Types of Rockburst in Deeply Buried Tunnels
文献类型：期刊论文
| 作者 | Yu, Yang1,2; Feng, Xia-Ting1 ; Xu, Chang-jie2; Chen, Bing-rui1; Xiao, Ya-Xun1; Feng, Guang-Liang1
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| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
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| 出版日期 | 2020-04-01 |
| 卷号 | 20期号:4页码:9 |
| 关键词 | Fractal structure Microseismic events Strain-structure slip rockburst Strain rockburst Spatial fractal dimension |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001631 |
| 英文摘要 | Based on a large amount of real-time microseismic monitoring data and hundreds of rockburst cases of different types stemming from the construction of deep tunnels at Jinping Mountain Hydropower Station, Sichuan Province, China, a fractal calculation method, which is suitable for the study of linear tunnels, was proposed to investigate the self-similarity of the spatial distribution of the microseismic events occurring during the development of strain-structure slip rockbursts and strain rockbursts. The range and distribution characteristics of spatial fractal dimensions in the development process of different types of rockbursts were also compared and analyzed. The overburden above the tunnels, which are largely excavated in marble, is between 800 and 2,525 m. The results indicate that the spatial distribution of microseismic events during the evolution of rockbursts displays fractal properties. The daily spatial fractal dimensions of microseismic events decrease during the development of a rockburst, and are reduced to the minimum value as a rockburst occurs. There is an inversely proportional relationship between the daily spatial fractal dimension and microseismic energy release. The spatial fractal dimensions of microseismic events associated with a whole rockburst can be used as a basis for estimating the type of rockburst: spatial fractal dimensions greater than and less than 1.3 correspond to strain rockbursts and strain-structure slip rockbursts, respectively. For different types of rockbursts, if the intensity is higher, the spatial fractal dimension is smaller. The conclusion provides a basis for the development of a warning system for the prediction and prevention of different types of rockbursts in deep tunnels. |
| 资助项目 | National Natural Science Foundation of China[51509092] ; Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering[Z015004] ; Fund of Jiangxi Provincial Department of Science and Technology[20181BBG70052] ; Fund of Jiangxi Province Department of Traffic[2017D0036] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000514922800010 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23553]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yu, Yang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.East China Jiaotong Univ, Key Lab Geotech Engn Infrastruct & Safety Control, Nanchang 330013, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yang,Feng, Xia-Ting,Xu, Chang-jie,et al. Spatial Fractal Structure of Microseismic Events for Different Types of Rockburst in Deeply Buried Tunnels[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(4):9. |
| APA | Yu, Yang,Feng, Xia-Ting,Xu, Chang-jie,Chen, Bing-rui,Xiao, Ya-Xun,&Feng, Guang-Liang.(2020).Spatial Fractal Structure of Microseismic Events for Different Types of Rockburst in Deeply Buried Tunnels.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(4),9. |
| MLA | Yu, Yang,et al."Spatial Fractal Structure of Microseismic Events for Different Types of Rockburst in Deeply Buried Tunnels".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.4(2020):9. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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