Research on Dynamic Response Law of Shield Tunnel and Surrounding Soil Based on Vibration Action of Subway Train

被引:0
作者
Wang, Xiaorui [1 ]
Qin, Wenqian [1 ]
Yu, Huaichang [1 ]
机构
[1] School of Earth Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou
来源
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2024年 / 49卷 / 12期
关键词
dynamic response; engineering geology; numerical analysis; pore water pressure; small radius curve; vibrational load;
D O I
10.3799/dqkx.2023.075
中图分类号
学科分类号
摘要
In order to study the influence of the dynamic response of the soil around the tunnel under the train load in the small radius curve section, the pore water pressure and water level were measured in the field, and the numerical analysis was performed using the finite element software MIDAS. The results show that the vibration load is the important reason for the change of pore water pressure during the operation of the tunnel, the deeper the hole pressure gradually decreases; the closer to the tunnel, the more sensitive is the response to the train vibration dynamic response, the change amplitude and rate of pore water pressure and vertical deformation peak of the water in the soil are larger; the dynamic response of the soil at the bottom of the small radius curve tunnel increases with the train speed; the superpore water pressure generated by the soil is gradually dissipated, it can be predicted that the deformation damage to the surrounding soil with the train vibration. © 2024 China University of Geosciences. All rights reserved.
引用
收藏
页码:4673 / 4689
页数:16
相关论文
共 9 条
[1]  
Bian X. C., Jiang H. G., Chang C., Et al., Track and Ground Vibrations Generated by High-Speed Train Running on Ballastless Railway with Excitation of Vertical Track Irregularities, Soil Dynamics and Earthquake Engineering, 76, pp. 29-43, (2015)
[2]  
Dai L.F.B., Wang G.D., Gao B., Study of Sand Liquefaction under Vibration Load of High Speed Train, Chinese Journal of Underground Space and Engineering, 8, 2, pp. 434-438, (2012)
[3]  
Lei H.Y., Yang X.N., Xu Y.G., Et al., Experiment of Dynamic Characteristics of Saturated Remolded Clay under Intermittent Cyclic Loading, Journal of Tianjin University (Science and Technology), 54, 8, pp. 799-806, (2021)
[4]  
Ren L., Zhu Y., Cui T. L., Study on Protection Scheme of Shield Tunnel Passing through Railway Bridge Pile at a Short Distance, Earth Science, 46, 6, pp. 2278-2286, (2021)
[5]  
Shi Y. F., Cao C. W., Tan Y. F., Et al., Study on Dynamic Response and Long - Term Settlement of Water - Saturated Weathered Soft Rocks at the Base of Subway Tunnels, Modern Tunnelling Technology, 59, 2, pp. 86-95, (2022)
[6]  
Wang X.R., Cai S., Yang W., Et al., Influence of Existing Buildings on Construction of Earth Pressure Shield in Extremely Soft Rock Stratum, Earth Science, 47, 4, pp. 1483-1491, (2022)
[7]  
Wang X. R., Jiang H. J., Zhu K., Et al., Research on Ground Settlement Laws of Urban Subway Tunnel Construction Process Based on Earth Pressure Shield, Earth Science, 44, 12, pp. 4293-4298, (2019)
[8]  
Xu Y., Xu J. L., Dai J., Et al., Study of Pore Water Pressure and Deformation Characteristics of Soil below Tunnel under Vibration Load of Metro Trains, Tunnel Construction, 38, 11, pp. 1785-1792, (2018)
[9]  
Zhang X.L., Yi R.B., Ji Z.P., Et al., Property Evolution and Liquefaction Stage Characteristics of Saturated Sand under Cyclic Loading, Engineering Mechanics, 40, 2, pp. 157-167, (2023)