Combined freeze-sealing and New Tubular Roof construction methods for seaside urban tunnel in soft ground
文献类型：期刊论文
| 作者 | Kang, Yongshui1; Liu, Quansheng2; Cheng, Yong3; Liu, Xiaoyan2 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 58页码:1-10 |
| 关键词 | Seaside urban tunnel Freeze-sealing New Tubular Roof (NTR) method Soft soil |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2016.04.001 |
| 英文摘要 | Construction of seaside urban tunnels is significantly difficult due to the densely adjacent buildings and underground facilities in conjunction with unfavourable geological conditions. For this, this paper investigates the construction methods used for Gongbei Tunnel, which is a typical seaside tunnel connecting Hong Kong-Zhuhai-Macau Bridge in China. The construction methods and stability of the undercutting section will be focused. In the tunnel section of interest, dozens of thick steel tubes are jacked into the soft soil, and freeze-sealing method is applied to form a thick water-proofing wall. In this study, the combined freezing and New Tubular Roof (NTR) method are simulated by thermo-mechanical coupling analysis. The temperature field obtained in the freezing process indicates that the thickness of frozen wall grows approx. 2.0 m after 50 days of freezing. Besides, the stability of the surrounding ground and supporting structures in the bench-cutting stage are also investigated. Then the thawing process is simulated and associated suggestions for post-grouting to prevent excessive thawing settlement are proposed. The numerical results show that the tunnel is stable and the influence of tunnel excavation on adjacent buildings is within the permissible range. It also shows that the designed construction methods can be used to adequately meet safety and stability standards when adopting the proposed construction and supporting system. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000381169600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3918]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Wuhan Univ, Key Lab Rock Mech Hydraul Struct Engn, Sch Civil Engn & Architecture, Minist Educ ; 3.Second Highway Consultant Co Ltd, China Commun Construct Co |
| 推荐引用方式 GB/T 7714 | Kang, Yongshui,Liu, Quansheng,Cheng, Yong,et al. Combined freeze-sealing and New Tubular Roof construction methods for seaside urban tunnel in soft ground[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2016,58:1-10. |
| APA | Kang, Yongshui,Liu, Quansheng,Cheng, Yong,&Liu, Xiaoyan.(2016).Combined freeze-sealing and New Tubular Roof construction methods for seaside urban tunnel in soft ground.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,58,1-10. |
| MLA | Kang, Yongshui,et al."Combined freeze-sealing and New Tubular Roof construction methods for seaside urban tunnel in soft ground".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 58(2016):1-10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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