Large-scale model test for studying the water inrush during tunnel excavation in fault
文献类型：期刊论文
| 作者 | Wang, Yingchao1,4,5; Chen, Fan5; Sui, Wanghua5; Meng, Fanshu3; Geng, Fan2 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 81期号:6页码:11 |
| 关键词 | Tunnel engineering Model test Water-rich fault Water inrush Water-resistant strata |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-022-02733-9 |
| 英文摘要 | Water-rich fault fracture zone is one of the main factors leading to water and mud inrush in tunnels, which has attracted wide attention of scholars. In order to investigate the fracture and water inrush mechanism of fault surrounding rock under the disturbance of tunnel excavation and water pressure, taking Qilian Mountain Tunnel as engineering background, the fracture of fault surrounding rock caused by tunnel excavation is studied based on the self-developed model test apparatus. The model test system was comprised of a water supply system, acrylic glass holding device, and collection system. The experiment smoothly and successfully reproduced the process of water inrush in front of the tunnel face caused by excavation unloading and water pressure, and the deforming performance and stress distribution of surrounding rock were investigated. According to the experimental phenomena and data analysis, the process of water inrush could be divided into three stages. In the first stage, the tunnel face changed from dry to wet with the tunnel excavation, and the water pressure, soil pressure, and displacement of monitoring points were nearly unchanged. In the second stage, the water seepage area spread to the whole tunnel face from the bottom, and finally water inrush occurred. And the water pressure and soil pressure of monitoring points were increased significantly. At the moment of water inrush, the displacement of monitoring point in fault increased instantaneously; the water-resistant strata have obvious instability characteristics. In the third stage, the water inflow and sand inflow become fewer and fewer over time. And the seepage pressure and soil pressure of monitoring points on the right side of the tunnel decrease firstly and then increase, while the seepage pressure and soil pressure of monitoring points on the left side of the tunnel decrease sharply. The results provide a valuable reference for the mechanism research of water inrush. |
| 资助项目 | National Natural Science Foundation of China[42130706] ; National Natural Science Foundation of China[41572263] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z020014] ; Key Research and Development Program (Social Development) of Xuzhou City[KC21298] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000796992600001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36594]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Yingchao |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Jiangsu, Peoples R China 3.Shanghai Baoye Grp Corp LTD, Shanghai 200941, Peoples R China 4.China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Jiangsu, Peoples R China 5.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yingchao,Chen, Fan,Sui, Wanghua,et al. Large-scale model test for studying the water inrush during tunnel excavation in fault[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(6):11. |
| APA | Wang, Yingchao,Chen, Fan,Sui, Wanghua,Meng, Fanshu,&Geng, Fan.(2022).Large-scale model test for studying the water inrush during tunnel excavation in fault.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(6),11. |
| MLA | Wang, Yingchao,et al."Large-scale model test for studying the water inrush during tunnel excavation in fault".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.6(2022):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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