Identification of potential high-stress hazards in deep-buried hard rock tunnel based on microseismic information: a case study
文献类型：期刊论文
| 作者 | Niu, Wen-jing2; Feng, Xia-Ting2 ; Xiao, Ya-xun1; Feng, Guang-liang1; Yao, Zhi-bin2; Hu, Lei2
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| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2020-09-26 |
| 页码 | 21 |
| 关键词 | Deep-buried tunnel Hard rock High-stress hazards Microseismic monitoring |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-020-01973-x |
| 英文摘要 | Rockbursts, stress-induced collapse, and spalling often occur in the excavation process of deep-buried hard rock tunnel, which affect the stability thereof. The early identification of these potential high-stress hazards during tunnel excavation can provide reliable basis for the selection of preservative and controlled measures. During the excavation of a deep-buried hard rock tunnel in southwest China (a railway tunnel with a maximum burial depth over 2000 m), rockbursts, stress-induced collapse, spalling, and cracking occurred frequently. In this study, the microseismicity of various high-stress hazards in the genesis process of the tunnel was analysed. The difference of microseismicity characteristics of these high-stress hazards was revealed. A matter-element extension mathematical model was established to quantify the microseismicity of the rock mass during tunnel excavation. Based on microseismic (MS) information, an identification method of potential high-stress hazards in deep-buried hard rock tunnels was established. The method was then applied to a real case, and reliability analysis thereof performed. Thirty test case samples were selected for reliability analysis and case verification. Through practical application, it is found that 90% samples were identified correctly. The results show that the identification method of potential high-stress hazards in the deep hard rock tunnel constructed in this study is both applicable and reliable, and can identify potential high-stress hazard types in the process of tunnel excavation by using MS information. |
| 资助项目 | National Natural Science Foundation of China[51839003] ; Science and Technology Development Project of China Railway[2017G006-B] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000572838600001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24811]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Xia-Ting |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Wen-jing,Feng, Xia-Ting,Xiao, Ya-xun,et al. Identification of potential high-stress hazards in deep-buried hard rock tunnel based on microseismic information: a case study[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:21. |
| APA | Niu, Wen-jing,Feng, Xia-Ting,Xiao, Ya-xun,Feng, Guang-liang,Yao, Zhi-bin,&Hu, Lei.(2020).Identification of potential high-stress hazards in deep-buried hard rock tunnel based on microseismic information: a case study.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,21. |
| MLA | Niu, Wen-jing,et al."Identification of potential high-stress hazards in deep-buried hard rock tunnel based on microseismic information: a case study".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):21. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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