Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
| Cause investigation and verification of lining cracking of bifurcation tunnel at Huizhou Pumped Storage Power Station | |
| Bian, Kang1; Liu, Jian1; Xiao, Ming2; Liu, Zhenping1 | |
| 2016 | |
| 发表期刊 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| ISSN | 0886-7798 |
| 卷号 | 54期号:-页码:123-134 |
| 摘要 | A wide range of cracking happens in concrete lining at the crown of the lower adit and high-pressure bifurcation in the water-filled test of bifurcation tunnel at Huizhou Pumped Storage Power Station. Then a field investigation is undertaken to explore the main reason of such prominent lining cracking. Through investigating several possible inducing factors, it is found that mass defects exist in the concrete lining in constructing bifurcation tunnel, and insufficient thickness of concrete lining is probably the main factor causing lining cracks. In order to verify if this conclusion is reasonable, comparative analysis through numerical simulation is utilized to assess the influence of different concrete thicknesses on tunnel stability for the lower adit and high-pressure bifurcation. And then the fracturing process of concrete lining with the increase of internal water pressure during the water-filled test is simulated. The results reveal that the displacements and tensile strains in the lining crown are significantly bigger than other parts of tunnel, with deficiency in concrete thickness considered. It is also concluded that whether the cavities exist or not in the crown, rather than the cavity thickness, is the main factor influencing the values and distributions of the tensile strains and displacements for tunnel lining. Besides, the distribution of tensile-strain-concentrated zones is approximately in good agreement with the in-situ fractured status of concrete lining. Finally, a conclusion can be drawn that deficiency in concrete thickness in the crown is the primary triggering factor for lining cracking. (C) 2015 Elsevier Ltd. All rights reserved. |
| 关键词 | Lining cracking Bifurcation tunnel Insufficient thickness Numerical simulation Cause investigation |
| DOI | 10.1016/j.tust.2015.10.030 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| WOS类目 | Construction & Building Technology ; Engineering, Civil |
| WOS记录号 | WOS:000372679400013 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.198/handle/2S6PX9GI/3849 |
| 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, State Key Lab Water Resources & Hydropower Engn S |
| 推荐引用方式 GB/T 7714 | Bian, Kang,Liu, Jian,Xiao, Ming,et al. Cause investigation and verification of lining cracking of bifurcation tunnel at Huizhou Pumped Storage Power Station[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2016,54(-):123-134. |
| APA | Bian, Kang,Liu, Jian,Xiao, Ming,&Liu, Zhenping.(2016).Cause investigation and verification of lining cracking of bifurcation tunnel at Huizhou Pumped Storage Power Station.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,54(-),123-134. |
| MLA | Bian, Kang,et al."Cause investigation and verification of lining cracking of bifurcation tunnel at Huizhou Pumped Storage Power Station".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 54.-(2016):123-134. |
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