Investigation on the evolution mechanism of water and mud inrush disaster in fractured rock mass of mountain tunnel
文献类型：期刊论文
| 作者 | Wang, Yingchao; Liu, Yang; Zhao, Ning; Jiang, Wen |
| 刊名 | GEOMATICS NATURAL HAZARDS & RISK
 |
| 出版日期 | 2022-12-31 |
| 卷号 | 13期号:1页码:1780 |
| 关键词 | Model experiment time lag effect pore water pressure soil pressure displacement |
| ISSN号 | 1947-5705 |
| 英文摘要 | Water inrush is one of the major disasters during tunnel construction. Due to its characteristics of great harm and difficult prediction, it has always been the focus of research. In order to reveal the mechanism of fault water inrush, a laboratory experiment is adopted to simulate tunnel excavation. The results show, firstly, the pore water pressure and soil pressure of model are unchanged before the fault is exposed; after the fault is exposed, the pore water pressure and soil pressure of vault decrease first, followed by the arch and haunch, and the decline of arch and vault is greater than that of haunch. Secondly, excavation has the greatest impact on the displacement of rock mass directly above the tunnel axis, and the farther away from the axis, the smaller the impact. Thirdly, the seepage channel around vault begins to expand, and clear water begins to seep out after the fault exposure. As the sediment in the crack is carried out by water flow, the clear water gradually becomes turbid, seepage channel changes from pore flow to fissure flow and then to pipe flow. Finally, Comsol is used to analyze the fault water inrush mechanism from the perspective of permeability change, and the correctness of model test is verified by comparing with engineering practice. |
| 学科主题 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000825953400001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34882]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.China University of Mining & Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Wang, Yingchao,Liu, Yang,Zhao, Ning,et al. Investigation on the evolution mechanism of water and mud inrush disaster in fractured rock mass of mountain tunnel[J]. GEOMATICS NATURAL HAZARDS & RISK,2022,13(1):1780. |
| APA | Wang, Yingchao,Liu, Yang,Zhao, Ning,&Jiang, Wen.(2022).Investigation on the evolution mechanism of water and mud inrush disaster in fractured rock mass of mountain tunnel.GEOMATICS NATURAL HAZARDS & RISK,13(1),1780. |
| MLA | Wang, Yingchao,et al."Investigation on the evolution mechanism of water and mud inrush disaster in fractured rock mass of mountain tunnel".GEOMATICS NATURAL HAZARDS & RISK 13.1(2022):1780. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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