Experimental and numerical investigations on cross rock pillar method for super large cross-sectional tunnel excavation
文献类型：期刊论文
| 作者 | Sang, Haomin1,4; Liu, Bin1; Kang, Yongshui1; Liu, Quansheng2; Pan, Yucong2; Zhou, Annan3 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 82期号:7页码:- |
| ISSN号 | 1435-9529 |
| 关键词 | Super large cross section Cross rock pillar method Physical model test Fiber sensing technology Numerical verification |
| 英文摘要 | To solve stability issues of super large cross-sectional tunnel with greater than 20 m across and an overall area greater than 314 m(2) during excavation, a new technique named cross rock pillar method (CRPM) is proposed. A physical model test was firstly conducted to investigate the deformation and failure mechanisms of a tunnel using CRPM. In this physical model, a rock-like material simulating the V-class surrounding rock was made and a geomechanical model test bench was developed to simulate and observe the progressive failure process of the tunnel. Furthermore, fiber sensing technology was used to continuously monitor the horizontal strain in different cross sections. Test results show that the cross rock pillars play a significant role in preventing deformation of the surrounding rock during the tunnel excavation. A numerical model was then established to verify the results obtained by the physical model test. The deformation and stability mechanisms of the surrounding rock are determined using CRPM in super large cross-sectional tunnels. Finally, the proposed CRPM was successfully implemented in the Hongqihegou rail station, and the monitoring results show that the surrounding rock was adequately controlled throughout the excavation process. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:001016725100002 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35383]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, 430071 Wuhan, Hubei, China 2.Key Laboratory of Safety for Geotechnical and Structural Engineering of Hubei Province, School of Civil Engineering, Wuhan University, 430072 Wuhan, Hubei, China 3.Civil and Infrastructure Engineering, Royal Melbourne Institute of Technology, Melbourne, VIC 3001, Australia 4.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Sang, Haomin,Liu, Bin,Kang, Yongshui,et al. Experimental and numerical investigations on cross rock pillar method for super large cross-sectional tunnel excavation[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2023,82(7):-. |
| APA | Sang, Haomin,Liu, Bin,Kang, Yongshui,Liu, Quansheng,Pan, Yucong,&Zhou, Annan.(2023).Experimental and numerical investigations on cross rock pillar method for super large cross-sectional tunnel excavation.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,82(7),-. |
| MLA | Sang, Haomin,et al."Experimental and numerical investigations on cross rock pillar method for super large cross-sectional tunnel excavation".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 82.7(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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