Multi-objective optimization-based prediction of excavation-induced tunnel displacement
文献类型：期刊论文
| 作者 | Tao, Yuanqin1; He, Wei1; Sun, Honglei2; Cai, Yuanqiang1; Chen, Junqiang3 |
| 刊名 | UNDERGROUND SPACE
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 7期号:5页码:735 |
| 关键词 | Tunnel displacement Excavation Time effect Multi-objective particle swarm optimization Parameter identification |
| ISSN号 | 2096-2754 |
| 英文摘要 | This paper proposes an inverse method for improving the prediction of tunnel displacements during adjacent excavation. In this framework, staged data assimilation and parameter identification are conducted using the multi-objective particle swarm optimization algorithm. Recent monitoring data are assumed to be more informative and assigned more weights in the multi-objective optimization to improve the prediction accuracy. Then, an empirical formula is applied to correct the time effect of tunnel displacement. The Kriging method is introduced to surrogate the finite element model to reduce computational cost. The proposed framework is verified using a typical staged excavation nearing tunnel case. The predictions using the updated parameters are in good agreement with the measure-ments. The identified values of underlying soil parameters are within the typical ranges for the unloading condition. The updated time effect indicates that tunnel displacements may develop excessively in the three months after the region S1-B is excavated to the bottom. The maximum vertical tunnel displacement may increase from the currently measured 12 mm to the calculated 26 mm if the later con-struction is suspended long enough. Subsequent constructions need to be timely conducted to restrain the time effect and control tunnel displacements. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000848543500001 |
| 出版者 | KEAI PUBLISHING LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35171]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Research Center of Coastal and Urban Geotechnical Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China 2.Institute of Geotechnical Engineering, College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310000, China 3.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430061, China |
| 推荐引用方式 GB/T 7714 | Tao, Yuanqin,He, Wei,Sun, Honglei,et al. Multi-objective optimization-based prediction of excavation-induced tunnel displacement[J]. UNDERGROUND SPACE,2022,7(5):735. |
| APA | Tao, Yuanqin,He, Wei,Sun, Honglei,Cai, Yuanqiang,&Chen, Junqiang.(2022).Multi-objective optimization-based prediction of excavation-induced tunnel displacement.UNDERGROUND SPACE,7(5),735. |
| MLA | Tao, Yuanqin,et al."Multi-objective optimization-based prediction of excavation-induced tunnel displacement".UNDERGROUND SPACE 7.5(2022):735. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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