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Effects of the compressible layer on the long-term stability of secondary lining in a squeezing tunnel

文献类型：期刊论文

作者Tian, Hongming1,4; Zhang, Zheyuan1,4; Chen, Weizhong1,4; Tan, Xianjun1,4; Dong, Wang3; Yu, Jianxian2
刊名TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
出版日期2024-07-01
卷号149页码:14
关键词Yielding support Compressible layer Squeezing ground Long-term stability of tunnel
ISSN号0886-7798
DOI10.1016/j.tust.2024.105787
英文摘要The long-term deformation behavior of squeezing rock often results in damage to the secondary lining during tunnel operation. To prevent such damage, a compressible layer filled with foamed materials that possess high deformation capacity, is constructed between the primary support and the secondary lining. This study investigated the effects of a polyethylene (PE) foam compressible layer on the long-term stability of the squeezing tunnel through field monitoring and numerical simulation. Results demonstrate that the PE foam compressible layer can absorb approximately 90% of the time -dependent deformation of the squeezing rock during tunnel operation, and the compressible layer significantly reduces the hoop stress and plastic zone of the secondary lining, indicating the substantial benefits of the PE foam compressible layer for the long-term stability of squeezing tunnels. Based on the influences of thickness and filling materials on the performance of the compressible layer, optimization suggestions for the design parameters of the compressible layer are proposed for the squeezing tunnel.
资助项目Science and Technology Planning Project of Xizang Autonomous Region[52279119] ; Science and Technology Planning Project of Xizang Autonomous Region[U2340229] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotech-nical Engineering[XZ202201ZY0021G] ; [SKLGME022022]
WOS研究方向Construction & Building Technology ; Engineering
语种英语
WOS记录号WOS:001242569200001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/41662]  
专题中科院武汉岩土力学所
通讯作者Chen, Weizhong; Tan, Xianjun
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
2.Henan Polytech Univ, Sch Civil Engn, Jiaozuo 454003, Peoples R China
3.China Railway Eryuan Engn Grp Co Ltd, Chengdu 610031, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Hongming,Zhang, Zheyuan,Chen, Weizhong,et al. Effects of the compressible layer on the long-term stability of secondary lining in a squeezing tunnel[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2024,149:14.
APA Tian, Hongming,Zhang, Zheyuan,Chen, Weizhong,Tan, Xianjun,Dong, Wang,&Yu, Jianxian.(2024).Effects of the compressible layer on the long-term stability of secondary lining in a squeezing tunnel.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,149,14.
MLA Tian, Hongming,et al."Effects of the compressible layer on the long-term stability of secondary lining in a squeezing tunnel".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 149(2024):14.

入库方式： OAI收割

来源：武汉岩土力学研究所

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